US20050189350A1 - Container assemblies with releasable locking feature - Google Patents
Container assemblies with releasable locking feature Download PDFInfo
- Publication number
- US20050189350A1 US20050189350A1 US11/056,678 US5667805A US2005189350A1 US 20050189350 A1 US20050189350 A1 US 20050189350A1 US 5667805 A US5667805 A US 5667805A US 2005189350 A1 US2005189350 A1 US 2005189350A1
- Authority
- US
- United States
- Prior art keywords
- container
- ribs
- rim
- projecting
- upwardly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/34—Trays or like shallow containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0234—Nestable or stackable container parts forming a receptacle when one part is inverted upon the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00027—Stackable lids or covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00064—Shape of the outer periphery
- B65D2543/00074—Shape of the outer periphery curved
- B65D2543/00092—Shape of the outer periphery curved circular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00296—Plastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00342—Central part of the lid
- B65D2543/00351—Dome-like
- B65D2543/00361—Dome-like placed on a tray like container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00611—Profiles
- B65D2543/0062—Groove or hollow bead
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00675—Periphery concerned
- B65D2543/00685—Totality
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00722—Profiles
- B65D2543/00731—Groove or hollow bead
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00787—Periphery concerned
- B65D2543/00796—Totality
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00824—Means for facilitating removing of the closure
- B65D2543/00833—Integral tabs, tongues, handles or similar
- B65D2543/00842—Integral tabs, tongues, handles or similar outside of the lid
Definitions
- the present invention relates generally to containers. More particularly, the present invention relates to releasably lockable container assemblies and containers therein.
- Polymeric, paper and metal containers generally have been used for heating the food product(s) disposed therein. These containers typically comprise a cover or lid and a base.
- a container that would be easy for the customer to close and open. It would also be desirable to provide a container that is releasably lockable and prevents or inhibits material, such as liquid, from leaving the container. It would be desirable for a container to function without necessarily having a lid, but if a lid is desired to form a container assembly, a customer would be able to make such an assembly.
- a container assembly comprises a first container and a second container.
- the first container includes a first continuous body portion and a first rim.
- the first rim encompasses and projects laterally outwardly from the first body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- the first plurality of ribs have a first sidewall and a second sidewall.
- a generally flat surface encompasses and bridges the first and second sidewalls of the first plurality of ribs.
- the first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first body portion.
- the second container includes a second continuous body portion and a second rim.
- the second rim encompasses and projects laterally outwardly from the second body portion.
- the rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs.
- the second plurality of ribs have a third sidewall and a fourth sidewall.
- a generally flat surface encompasses and bridges the third and fourth sidewalls of the second plurality of ribs.
- the second plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first body portion.
- the first container is shaped substantially the same as the second container.
- the first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- a container assembly is formed that comprises providing a first container that includes a first continuous body portion and a first rim.
- the first rim encompasses and projects laterally outwardly from the first body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- a second container is provided that includes a second continuous body portion and a second rim.
- the second rim encompasses and projects laterally outwardly from the second body portion.
- the rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs.
- the first container is shaped substantially the same as the second container.
- One of the first container and the second container is flipped such that the first container and second container are generally aligned and the first rim and the second rim are adjacent to each other.
- the first plurality of upwardly-projecting ribs is fit into respective second spaces and the second plurality of upwardly-projecting ribs is fit into respective first spaces such that the first container and the second container are releasably lockable to each other.
- a container assembly comprises a first container and a second container.
- the first container includes a first continuous body portion and a first rim.
- the first rim encompasses and projects laterally outwardly from the first body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- the second container includes a second continuous body portion and a second rim.
- the second rim encompasses and projects laterally outwardly from the second body portion.
- the rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs.
- the second rim and the first rim are shaped substantially the same.
- the first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- a container assembly comprising providing a first container that includes a first continuous body portion and a first rim.
- the first rim encompasses and projects laterally outwardly from the first body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- a second container is provided that includes a second continuous body portion and a second rim.
- the second rim encompasses and projects laterally outwardly from the second body portion.
- the rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs.
- the second rim and the first rim are shaped substantially the same.
- One of the first container and the second container is flipped such that the first container and second container are generally aligned and the first rim and the second rim are adjacent to each other.
- the first plurality of upwardly-projecting ribs is fit into respective second spaces and the second plurality of upwardly-projecting ribs is fit into respective first spaces such that the first container and the second container are releasably lockable to each other.
- a container assembly comprises a first and second container.
- the first container includes a first continuous body portion and a first rim.
- the first rim encompasses and projects laterally outwardly from the first body portion.
- the rim has a first plurality of upwardly projecting features with first spaces being formed between adjacent upwardly projecting features.
- the second container includes a second continuous body portion and a second rim.
- the second rim encompasses and projects laterally outwardly from the second body portion.
- the rim has a second plurality of upwardly projecting features with second spaces being formed between adjacent upwardly projecting features.
- the second rim and the first rim are shaped substantially the same.
- the first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly projecting features into respective second spaces and fitting the second plurality of upwardly projecting features into respective first spaces.
- a container to be used in a container assembly comprises a continuous body portion and a rim.
- the rim encompasses and projects laterally outwardly from the body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- the rim is adapted to be releasably lockable by fitting the first plurality of ribs and first spaces into respective second spaces and second plurality of ribs of a second container.
- the second spaces and the second plurality of ribs are shaped substantially the same as respective first spaces and first plurality of ribs.
- a container assembly comprises a first and second container.
- the first container includes a first continuous body portion and a first rim.
- the first rim encompasses and projects laterally outwardly from the first body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- the second container includes a second continuous body portion and a second rim.
- the second rim encompasses and projects laterally outwardly from the second body portion.
- the rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs.
- the first container is shaped substantially the same as the second container.
- the first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- the first rim and the second rim are adapted to form a seal.
- a container assembly comprises a first container and a second container.
- the first container includes a first continuous body portion and a first rim.
- the first rim encompasses and projects laterally outwardly from the first body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- the first plurality of ribs have a first sidewall and a second sidewall.
- a generally flat surface encompasses and bridges the first and second sidewalls of the first plurality of ribs.
- the first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first body portion.
- the second container includes a second continuous body portion and a second rim.
- the second rim encompasses and projects laterally outwardly from the second body portion.
- the rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs.
- the second plurality of ribs have a third sidewall and a fourth sidewall.
- a generally flat surface encompasses and bridges the third and fourth sidewalls of the second plurality of ribs.
- the second plurality of ribs have a rounded portion that transitions from the generally flat surface towards the second body portion.
- the first container is shaped substantially the same as the second container.
- the first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- a container assembly comprises a first container and a second container.
- the first container includes a first continuous body portion and a first rim.
- the first rim encompasses and projects laterally outwardly from the first body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- the first plurality of ribs have a first sidewall and a second sidewall.
- a generally flat surface encompasses and bridges the first and second sidewalls of the first plurality of ribs.
- the first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first and second sidewalls.
- the second container includes a second continuous body portion and a second rim.
- the second rim encompasses and projects laterally outwardly from the second body portion.
- the rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs.
- the second plurality of ribs have a third sidewall and a fourth sidewall.
- a generally flat surface encompasses and bridges the third and fourth sidewalls of the second plurality of ribs.
- the second plurality of ribs have a rounded portion that transitions from the generally flat surface towards the third and fourth sidewalls.
- the first container is shaped substantially the same as the second container.
- the first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- a container to be used in a container assembly comprises a continuous body portion and a rim.
- the rim encompasses and projects laterally outwardly from the body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- the first plurality of ribs have a first sidewall and a second sidewall and a generally flat surface that encompasses and bridges the first and second sidewalls.
- the first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first body portion.
- the rim is adapted to be releasably lockable by fitting the first plurality of ribs and first spaces into respective second spaces and second plurality of ribs of a second container.
- the second spaces and the second plurality of ribs are shaped substantially the same as respective first spaces and first plurality of ribs.
- a container to be used in a container assembly comprises a continuous body portion and a rim.
- the rim encompasses and projects laterally outwardly from the body portion.
- the rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs.
- the first plurality of ribs have a first sidewall and a second sidewall and a generally flat surface that encompasses and bridges the first and second sidewalls.
- the first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first and second sidewalls.
- the rim is adapted to be releasably lockable by fitting the first plurality of ribs and first spaces into respective second spaces and second plurality of ribs of a second container.
- the second spaces and the second plurality of ribs are shaped substantially the same as respective first spaces and first plurality of ribs.
- FIG. 1 is a side view of a container to be used in one embodiment of the invention
- FIG. 2 is a top view of the container of FIG. 1 ;
- FIG. 3 is an enlarged cross-sectional view taken generally along lines FIG. 3 - FIG. 3 in FIG. 2 ;
- FIG. 4 is an enlarged top view of generally circular region FIG. 4 of FIG. 2 ;
- FIG. 5 is a perspective view of generally circular region FIG. 5 of FIG. 2 depicting two adjacent projecting ribs;
- FIG. 6 is a sectional view of generally circular region FIG. 6 of FIG. 1 according to one embodiment.
- FIG. 7 a is a side view of a container assembly in a releasably lockable position using the container of FIG. 1 and a second identical container of FIG. 1 according to one embodiment of the present invention
- FIG. 7 b is a top view of the container assembly of FIG. 7 a;
- FIG. 8 is an enlarged cross-sectional view taken generally along lines FIG. 8 - FIG. 8 in FIG. 7 b;
- FIG. 9 is a side view of a container to be used in another embodiment of the invention.
- FIG. 10 is a top view of the container of FIG. 9 ;
- FIG. 11 is an enlarged top view of generally circular region FIG. 11 of FIG. 10 ;
- FIG. 12 is a perspective view of generally circular region FIG. 11 of FIG. 10 depicting two adjacent projecting ribs;
- FIG. 13 is an enlarged cross-sectional view taken generally along lines FIG. 13 - FIG. 13 in FIG. 12 ;
- FIG. 14 a is a side view of a container assembly in a releasably lockable position using the container of FIG. 9 and a second identical container of FIG. 9 according to another embodiment of the present invention
- FIG. 14 b is a top view of the container assembly of FIG. 14 a;
- FIG. 15 is an enlarged cross-sectional view taken generally along lines FIG. 15 - FIG. 15 in FIG. 14 b;
- FIG. 16 a is a top view of yet another container to be used in the present invention.
- FIG. 16 b is an enlarged cross-sectional view taken generally along lines FIG. 16 b - FIG. 16 b in FIG. 16 a.
- FIG. 17 is a side view of a container to be used in a further embodiment of the invention.
- FIG. 18 is a top view of the container of FIG. 17 ;
- FIG. 19 is an enlarged cross-sectional view taken generally along lines FIG. 19 - FIG. 19 of FIG. 18 ;
- FIG. 20 is an enlarged perspective view of generally circular region FIG. 20 of FIG. 18 depicting two adjacent projecting ribs;
- FIG. 21 is an enlarged top view of generally circular region FIG. 21 of FIG. 18 .
- FIG. 22 is a side view of a container assembly in a releasably lockable position using the container of FIG. 17 and a second identical container of FIG. 17 according to one embodiment of the present invention
- FIG. 23 is a top view of the container assembly of FIG. 22 ;
- FIG. 24 is an enlarged cross-sectional view taken generally along lines FIG. 24 - FIG. 24 of FIG. 23
- a container e.g., plate 10 to be used in one embodiment of the present invention is shown.
- the plate 10 is used with a second plate 110 (see FIGS. 7 and 8 ) that may be substantially the same or, alternatively, identical to the plate 10 to form a container assembly that is releasably lockable.
- container assemblies may be formed besides those using plates.
- container assemblies may be formed, but are not limited to, using plates, bowls, platters, tubs, single-serve and family-size containers, single-serve and family-size ovenware, and combinations thereof.
- One such combination is a bowl and a plate that forms a container assembly.
- the remainder of the application will discuss container and container assemblies with respect to plates although it is recognized by one of ordinary skill in the art that other container assemblies, such as those discussed above, may be formed.
- the height and shape of the container assembly may vary from that shown without departing from the scope of the invention.
- the container assemblies of FIGS. 7 a and 14 a are depicted as being generally circular. It is contemplated that the container assemblies and containers used herein may be other shapes such as rectangular, square, hexagonal, octagonal, other polygonal shapes, or oval.
- the container assemblies of the present invention are typically used with respect to food, but may be used in other applications such as with medical applications, cosmetics or other items.
- Food container assemblies may be used for serving, storing, preparing and/or re-heating the food.
- the container 10 includes a continuous body portion 12 and a continuous rim 14 encompassing and projecting laterally outwardly from the body portion 12 .
- the body portion 12 includes a bottom 16 and a continuous sidewall 18 encompassing and projecting upwardly and outwardly from the bottom 16 . It is contemplated that the sidewall may project only upwardly from the bottom 16 or even project upwardly and inwardly from the bottom 16 . It is also contemplated that the rim may not be continuous, although it is preferred to be continuous.
- the continuous rim 14 includes a plurality of ribs 20 that project generally upwardly therefrom.
- the plurality of ribs 20 is spaced around the general periphery of the container 10 and assists in forming a releasably lockable container assembly.
- the orientation of the plurality of ribs 20 creates a pattern that is generally normal to the direction of the rim 14 . More specifically, the orientation of the plurality of ribs 20 may create a pattern that is normal to the direction of the rim 14 . In a radial configuration with a pattern that is normal to the direction of the rim, each of the plurality of ribs 20 , if extended inwardly, would pass through the general center of the plate.
- the plurality of ribs 20 may be formed in different patterns than shown in FIG. 2 with respect to the rim 14 (e.g., diagonally). It may be desirable to form the plurality of ribs 20 in a decorative pattern for aesthetic reasons. Such a decorative feature may assist in “hiding” or disguising the releasable lockable feature in the container 10 .
- the container 10 of FIG. 2 has exactly 60 ribs formed in the continuous rim 14 . It is contemplated that the number of ribs may vary from that shown in FIG. 2 . For example, a container may have from about 3 to about 10 ribs. A container may have greater than about 20 or about 40 ribs, and may even have up to or greater than about 120 ribs.
- the desired number of ribs formed on the container will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly.
- the desired holding strength depends on factors such as the weight of item(s) placed in the container assembly and its perceived usage.
- FIGS. 3-5 the plurality of ribs 20 is shown in greater detail. Specifically, a cross-sectional view of FIG. 3 shows two adjacent ribs that project upwardly from the continuous rim 14 .
- FIG. 3 depicts a first rib 20 a and a second rib 20 b with a space 22 being formed therebetween.
- the first rib 20 a of FIG. 3 comprises a generally flat surface 24 that bridges two sidewalls 26 , 28 .
- the first rib 20 a is shown as being generally perpendicular to the plane of the remainder of the continuous rim 14 .
- the first rib 20 a is shown as being generally perpendicular to plane CC formed along the remainder of the rim 14 in FIG. 3 .
- the rib may be perpendicular to the plane of the remainder of the rim.
- the sidewalls 26 , 28 are spaced apart from each other and are shown as being generally perpendicular to the plane CC of the remainder of the rim 14 .
- the sidewalls 26 , 28 do not necessarily have to be generally perpendicular or perpendicular to the remainder of the rim 14 .
- second rib 20 b of FIG. 3 comprises a generally flat surface 30 that bridges two sidewalls 32 , 34 .
- the second rib 20 b is also shown as being generally perpendicular to the plane CC of the remainder of the rim 14 .
- the sidewalls 32 , 34 are spaced apart from each other and are shown as being generally perpendicular to the plane CC of the remainder of the rim 14 .
- At least one of the rib sidewalls may have an undercut.
- Such an optional undercut formed in the rib sidewall engages a similar undercut in a corresponding space formed between adjacent ribs of a second container when the container assembly is formed. This is discussed below in further detail with respect to FIGS. 7-8 .
- optional undercuts 26 a, 28 a are formed in respective sidewalls 26 , 28 .
- the size and shape of the undercut will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly. The desired holding strength may depend on factors such as the weight of item(s) placed in the container assembly and its perceived usage.
- the number of undercuts formed in the rib sidewalls depends on factors such as the desired leak-resistant, the type of closure mechanism, manufacturability of the container assemblies, and the material(s) type and thicknesses used in forming the container assemblies. For example, if the container assemblies are made of a first material that has a higher coefficient of friction than a second material, then the container made of the first material will likely need less undercuts in its sidewalls than the same container made with the second material to have the same holding strength.
- the number of undercuts used also depends on the fitness of use of the container assembly, including the holding strength thereof.
- the ribs may have sidewalls with no undercuts or at least one undercut (e.g., first rib 20 a with optional undercuts 26 a, 28 a in FIG. 3 ). It is also contemplated that some ribs within the same container may have no undercuts, while other ribs may have one or more undercuts.
- FIGS. 4 and 5 adjacent ribs 36 , 38 of a portion of the rim 14 are shown in more detail.
- a top view of the ribs 36 , 38 shows that the ribs 36 , 38 generally taper inwardly toward the center of the container.
- FIG. 4 also shows a generally flat area 36 a of rib 36 and a generally flat area 38 a of rib 38 .
- the generally flat areas 36 a, 38 a may contact similar sized flat areas formed in the respective spaces between adjacent ribs of a second container that form the container assembly.
- An example of a similar sized flat area formed in a space between adjacent ribs is shown in FIG. 4 with generally flat area 40 .
- FIG. 5 shows adjacent ribs 42 , 44 with respective generally flat areas 42 a, 44 a.
- the ribs 42 , 44 are spaced apart with a generally flat area 46 that is formed between generally flat areas 42 a, 44 a.
- the generally flat areas may grow proportionally with the diameter (i.e., increase in size as the distance increases from the center of the container).
- the width W 1 of generally flat area 42 a may be smaller than width W 2 .
- the size of the generally flat areas typically remains constant as the distance increases from the center of the container. It is contemplated that this area of the ribs may be sized and shaped differently than shown in FIGS. 4 and 5 .
- the shape and size of the plurality of ribs 20 may vary from that shown in FIGS. 2-5 . It is preferred that the plurality of ribs be shaped and sized to minimize the stacking height of the containers used to form container assemblies. It is desirable to minimize the stacking height of the containers to (a) reduce transportation costs and packaging, and (b) provide space efficiency in retail and consumer settings. It is also desirable to maximize the holding strength of the container assembly. The desired holding strength is often a balance between making the container assembly easy for a consumer to open and close, while still preventing or inhibiting an inadvertent opening of the container assembly.
- the upwardly projecting features may be shaped differently than the ribs shown in FIGS. 2-5 and 11 - 13 .
- the upwardly projecting features may be a plurality of round, oval, square, or polygonal features. It is contemplated that many shapes and sizes may be formed by the upwardly projecting features used in the present invention.
- an optional seal feature 50 formed on the rim 14 is depicted.
- the optional seal feature 50 is located outwardly from the rib 52 with respect to the center of the container 10 .
- the optional seal feature 50 is located farther away from the center of the container 10 than the rib 52 .
- the optional seal feature 50 in conjunction with a corresponding optional seal feature on another container (not shown), along with the locked ribs of the container assembly, assist in preventing or inhibiting material from leaving or entering the container assembly.
- the optional seal feature is especially useful in preventing or inhibiting product leakage that may occur due to tolerances within the manufacturing process.
- the height H 1 of the optional seal feature 50 should be at least one-half of the rib height H 2 .
- a container 510 includes a plurality of ribs 520 and also includes an optional seal feature 550 .
- the optional seal feature 550 is located inwardly from the plurality of ribs 520 with respect to the center of the container 510 .
- the optional seal feature 550 in conjunction with a corresponding seal feature on another container (not shown), along with the locked ribs of the container assembly, assist in preventing or inhibiting material from leaving or entering the container assembly.
- the optional seal feature may be formed in a variety of shapes, including a general conical shape.
- a container assembly 100 is depicted in FIGS. 7 a, 7 b.
- the container 100 comprises the first container 10 and a second container 110 .
- the second container 110 is shaped substantially the same as the first container 10 .
- the second container 110 may be identical to the first container 10 . It may be desirable to have containers identically shaped to reduce waste by a consumer when the top container or lid is not used.
- the container assembly may be formed with different first and second containers than plates.
- the container assembly 100 of FIGS. 7 a, 7 b may be formed according to one method by providing the first container 10 and the second container 110 .
- the second container 110 includes a continuous body portion 112 and a continuous rim 114 that encompasses and projects laterally outwardly from the body portion 112 .
- the first container 10 includes the continuous body portion 12 and the continuous rim 14 that encompasses and projects laterally outwardly from the body portion 12 .
- Both of the rims 14 , 114 include a respective plurality of ribs with spaces therebetween (not shown in FIGS. 7 a, 7 b ).
- Each of the plurality of ribs may be shaped and sized similarly to the ribs 20 shown above in FIGS. 2-5 .
- Each of the plurality of ribs projects generally upwardly therefrom (i.e., in a direction away from the continuous body portion).
- the second container 110 is flipped 180 degrees relative to the first container 10 such that the containers 10 , 110 are generally aligned and the rims 14 , 114 are adjacent to each other. This flipped position of container 110 relative to the container 10 is shown in FIG. 7 a.
- the container 110 may have to be rotated slightly such that the ribs are offset (i.e., the ribs and spaces are aligned). It is desirable that the consumer can assembly the containers so as to form a container assembly of the present invention.
- FIG. 8 adjacent ribs 120 a, 120 b of the container 110 are fit into respective second spaces 22 a, 22 b of the container 10 and ribs 20 a, 20 b of the container 10 are fit into respective spaces 122 a, 122 b such that the container assembly 100 is releasably lockable.
- the container 110 may have to be rotated slightly such that the ribs are offset (i.e., the ribs and spaces are aligned).
- FIG. 8 also depicts interference areas 124 a, 124 b formed between the first rib 20 a and the space 122 a created between ribs 120 a, 120 b of the container 110 .
- This lockable closure is dependent on many variables such as the number of the projecting ribs, the height of those ribs, whether undercuts are included, the size of the contact areas, the clearance needed between spaces and ribs, and the material(s) type and thickness used in forming the container assemblies.
- an optional sealing feature may be added.
- a container (e.g., plate 210 ) includes a continuous body portion 212 and a continuous rim 214 encompassing and projecting laterally outwardly from the body portion 212 .
- the body portion 212 includes a bottom 216 and a continuous sidewall 218 encompassing and projecting upwardly and outwardly from the bottom 216 . It is contemplated that the sidewall may project only upwardly from the bottom 216 or even project upwardly and inwardly from the bottom 216 . It is also contemplated that the rim may not be continuous, although it is preferred to be continuous.
- the continuous rim 214 includes a plurality of rib sets 220 that project generally upwardly therefrom.
- the plurality of rib sets 220 is spaced around the general periphery of the container 210 and assists in forming a releasably lockable container assembly.
- the orientation of the plurality of rib sets 220 creates a pattern that is generally parallel or generally concentric with the general direction of the rim 214 . In other words, each of the plurality of rib sets 220 , if extended outwardly, would be no closer to the general center of the container 210 .
- the plurality of rib sets 220 is in the opposite direction of the plurality of ribs 20 in FIGS. 2-5 .
- the plurality of rib sets 220 may be formed in different patterns than shown in FIG. 10 with respect to the rim 214 (e.g., diagonally). It may be desirable to form the plurality of rib sets 220 in a decorative pattern for aesthetic reasons. Such a decorative feature may assist in “hiding” or disguising the releasable lockable feature in the container 210 .
- the container 210 of FIG. 10 has exactly 60 sets of ribs formed in the continuous rim 214 .
- each of the plurality of rib sets 220 has a first set of ribs on a raised portion and a second set of ribs on a recessed portion. It is contemplated that the number of rib sets may vary from that shown in FIG. 10 .
- a container may have from about 2 to about 30 sets of ribs.
- a container may have greater than about 40 or about 80 sets of ribs, and may even have up to or greater than about 120 sets of ribs.
- the desired number of ribs formed on the container will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly.
- the desired holding strength may depend on factors such as the weight of item(s) placed in the container assembly and its perceived usage.
- FIGS. 11-13 two adjacent sets of ribs are shown in greater detail.
- the number of ribs in a set varies in FIGS. 11 and 12 depending on whether the ribs are located in a recessed area or a raised area formed in the rim 214 .
- recessed area 240 has a first rib 242 and a second rib 244 with spaces 246 , 248 and 250 .
- Raised area 260 of FIGS. 11 and 12 has a first rib 262 , a second rib 264 , and a third rib 266 with spaces 268 , 270 therebetween.
- Each of the ribs of FIGS. 11 and 12 projects upwardly from the continuous rim 214 .
- a cross-sectional view of the recessed area 240 is depicted and includes the ribs 242 , 244 .
- a cross-sectional view of the raised area 260 would depict three ribs.
- the first rib 242 of FIG. 13 comprises a generally flat surface 288 that bridges two sidewalls 290 , 292 .
- the first rib 242 is shown as being generally perpendicular to the plane of the remainder of the continuous rim 214 .
- the first rib 242 is shown as being generally perpendicular to plane DD formed along the remainder of the rim 214 in FIG. 13 . More specifically, the rib may be perpendicular to the plane of the remainder of the rim.
- the sidewalls 290 , 292 are spaced apart from each other and are shown as being generally perpendicular to the plane DD of the remainder of the rim 214 .
- the sidewalls 290 , 292 do not necessarily have to be generally perpendicular or perpendicular to the remainder of the rim 214 .
- second rib 244 of FIG. 13 comprises a generally flat surface 298 that bridges two sidewalls 300 , 302 .
- the second rib 244 is also shown as being generally perpendicular to the plane DD of the remainder of the rim 214 .
- the sidewalls 300 , 302 are spaced apart from each other and are shown as being generally perpendicular to the plane DD of the remainder of the rim 214 .
- At least one of the rib sidewalls may have an optional undercut.
- an undercut formed in the rib sidewall engages a similar undercut in the spaces formed between adjacent ribs when the container assembly is formed.
- optional undercuts 290 a, 292 a are formed in respective sidewalls 290 , 292 .
- the size and shape of the undercut will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly. The desired holding strength may depend on factors such as the weight of item(s) placed in the container assembly and its perceived usage.
- the number of undercuts formed in the rib sidewalls depends on several factors. It is contemplated that the ribs may have sidewalls with no undercuts or at least one undercut (e.g., first rib 242 with optional undercuts 290 a, 292 a in FIG. 13 ). It is also contemplated that some ribs within the same container may have no undercuts, while other ribs have one or more undercuts.
- the raised and recessed areas 240 , 260 have a plurality of ribs with generally flat areas.
- the rib 242 includes a top surface or generally flat area 242 a.
- the rib 264 includes a top surface or generally flat area 264 a.
- the generally flat areas 264 a, 242 a may contact similar sized flat areas formed in the spaces formed between adjacent ribs of a second container that forms the container assembly.
- FIG. 12 An example of a similar sized flat area formed in a space is depicted in FIG. 12 with space 246 . As shown in FIG.
- a generally flat area 282 is formed between adjacent sets of ribs (i.e., the raised and recessed portions) to assist in releasably locking the container assembly. It is contemplated that this area of the ribs may be sized and shaped differently than shown in FIGS. 11-13 . It is contemplated that the numbers of ribs in a set of ribs may vary from that shown in FIGS. 11 and 12 (two ribs in the recessed areas and three ribs in the raised areas)
- the shape and size of the plurality of ribs 220 may vary from that shown in FIGS. 10-13 . It is preferred that the plurality of ribs be shaped and sized to minimize the stacking height of the containers. It is desirable to minimize the stacking height of the containers to (a) reduce transportation costs and packaging, and (b) provide space efficiency in retail and consumer settings. It is also desirable to maximize the holding strength of the container assembly. The desired holding strength is often a balance between making the container assembly easy for a consumer to open and close, while still preventing or inhibiting an inadvertent opening of the container assembly.
- an optional seal feature 350 formed on the rim 214 is depicted.
- the optional seal feature 350 is located outwardly from the ribs 242 , 244 , 262 , 264 and 266 with respect to the center of the container 210 . In other words, the optional seal feature 350 is located farther away from the center of the container 210 than the ribs.
- the optional seal feature 350 in conjunction with a corresponding seal feature on another container (e.g. optional seal feature 450 shown in FIG. 15 ), along with the locked ribs of the container assembly, assist in preventing or inhibiting material from leaving or entering the container assembly.
- the optional seal feature is especially useful in preventing or inhibiting product leakage that may occur due to tolerances within the manufacturing process.
- the height of the optional seal feature should be at least one-half of the rib height. This is shown in FIG. 15 where the optional seal features 350 and 450 contact each other.
- the optional seal feature may be located inwardly from the ribs such that the seal is formed nearer the center of the container assembly as compared to the releasably lockable ribs.
- a container assembly 400 according to one embodiment of the present invention is depicted in FIGS. 14 a, 14 b.
- the container 400 comprises the first container 210 and a second container 410 .
- the second container 410 is shaped substantially the same as the first container 210 .
- the second container 410 may be identical to the first container 210 .
- the container assembly may be formed with different first and second containers than plates.
- the container assembly may be formed using a bowl and a plate.
- the container assembly 400 of FIGS. 14 a, 14 b may be formed according to one method by providing the first container 210 and the second container 410 .
- the second container 410 includes a continuous body portion 412 and a continuous rim 414 that encompasses and projects laterally outwardly from the body portion 412 .
- the first container 210 includes the continuous body portion 212 and the continuous rim 214 that encompasses and projects laterally outwardly from the body portion 212 .
- Both of the rims 214 , 414 include a respective plurality of ribs with spaces therebetween (not shown in FIGS. 14 a, 14 b ).
- Each of the plurality of ribs may be shaped and sized similarly to the ribs 220 shown above in FIGS. 10-13 .
- Each of the plurality of ribs projects generally upwardly therefrom (i.e., in a direction away from the continuous body portion).
- the second container 410 is flipped 180 degrees relative to the first container 210 such that the containers 210 , 410 are generally aligned and the rims 214 , 414 are adjacent to each other. This flipped position of the container 410 relative to the container 210 is shown in FIG. 14 a.
- adjacent ribs 262 , 264 , 266 of one set of the container 210 are fit into respective second spaces 422 , 424 , and 426 of the container 410 and ribs 418 , 420 of the container 410 are fit into respective spaces 268 , 270 such that the container assembly 400 is releasably lockable.
- a container e.g., plate 610 to be used in a further embodiment of the present invention is shown.
- the plate 610 is used with a second plate 710 (see FIGS. 22 and 23 ) that may be substantially the same or, alternatively, identical to the plate 610 to form a container assembly that is releasably lockable.
- the container 610 includes a continuous body portion 612 and a continuous rim 614 encompassing and projecting laterally outwardly from the body portion 612 .
- the body portion 612 includes a bottom 616 and a continuous sidewall 618 encompassing and projecting upwardly and outwardly from the bottom 616 . It is contemplated that the sidewall may project only upwardly from the bottom 616 or even project upwardly and inwardly from the bottom 616 . It is also contemplated that the rim may not be continuous, although it is preferred to be continuous.
- Optional handle portions 652 are included on the container 610 to assist the users ability to utilize the container 610 .
- the continuous rim 614 includes a plurality of ribs 620 that project generally upwardly therefrom.
- the plurality of ribs 620 is spaced around the general periphery of the container 610 and assists in forming a releasably lockable container assembly.
- the orientation of the plurality of ribs 620 creates a pattern that is generally normal to the direction of the rim 614 . More specifically, the orientation of the plurality of ribs 620 may create a pattern that is normal to the direction of the rim 614 . In a radial configuration with a pattern that is normal to the direction of the rim, each of the plurality of ribs 620 , if extended inwardly, would pass through the general center of the plate.
- the plurality of ribs 620 may be formed in different patterns than shown in FIG. 18 with respect to the rim 614 (e.g., diagonally).
- the container 610 of FIG. 18 has exactly 44 ribs formed in the continuous rim 614 . It is contemplated that the number of ribs may vary from that shown in FIG. 18 .
- a container may have from about 3 to about 10 ribs.
- a container generally has from about 20 ribs to about 60 ribs. Containers typically have from about 30 ribs to about 50 ribs.
- the desired number of ribs formed on the container will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly.
- the desired holding strength depends on factors such as the weight of item(s) placed in the container assembly and its perceived usage.
- FIGS. 19-21 the plurality of ribs 620 is shown in greater detail. Specifically, a cross-sectional view of FIG. 19 shows two adjacent ribs that project upwardly from the continuous rim 614 .
- FIG. 19 depicts a first rib 620 a and a second rib 620 b with a space 622 being formed therebetween.
- the first rib 620 a of FIG. 19 comprises a generally flat surface 624 that bridges two sidewalls 626 , 628 .
- the first rib 620 a is shown as being generally perpendicular to the plane of the remainder of the continuous rim 614 .
- first rib 620 a is shown as being generally perpendicular to plane EE formed along the remainder of the rim 614 in FIG. 19 . More specifically, the rib may be perpendicular to the plane of the remainder of the rim.
- the sidewalls 626 , 628 are spaced apart from each other and are shown as being generally perpendicular to the plane EE of the remainder of the rim 14 .
- the sidewalls 626 , 628 do not necessarily have to be generally perpendicular or perpendicular to the remainder of the rim 14 .
- second rib 620 b of FIG. 19 comprises a generally flat surface 630 that bridges two sidewalls 632 , 634 .
- the second rib 620 b is also shown as being generally perpendicular to the plane EE of the remainder of the rim 614 .
- the sidewalls 632 , 634 are spaced apart from each other and are shown as being generally perpendicular to the plane EE of the remainder of the rim 614 .
- At least one of the rib sidewalls may have an undercut.
- Such an optional undercut formed in the rib sidewall engages a similar undercut in a corresponding space formed between adjacent ribs of a second container when the container assembly is formed. This is discussed below in further detail with respect to FIGS. 22-24 .
- optional undercuts 626 a, 628 a are formed in respective sidewalls 626 , 628 .
- the size and shape of the undercut will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly. The desired holding strength may depend on factors such as the weight of item(s) placed in the container assembly and its perceived usage.
- the number of undercuts formed in the rib sidewalls depends on factors such as the desired holding strength, the desired leak-resistant, the type of closure mechanism, manufacturability of the container assemblies, and the material(s) type and thicknesses used in forming the container assemblies. For example, if the container assemblies are made of a first material that has a higher coefficient of friction than a second material, then the container made of the first material will likely need less undercuts in its sidewalls than the same container made with the second material to have the same holding strength.
- the number of undercuts used also depends on the fitness of use for a particular application of the container assembly, including the holding strength thereof.
- the ribs may have sidewalls with no undercuts or at least one undercut (e.g., first rib 620 a with optional undercuts 626 a, 628 a in FIG. 19 ). It is also contemplated that some ribs within the same container may have no undercuts, while other ribs may have one or more undercuts.
- FIG. 20 shows adjacent ribs 642 , 644 with respective generally flat areas 642 a, 644 a.
- the ribs 642 , 644 are spaced apart with a generally flat area 646 that is formed between generally flat areas 642 a, 644 a.
- FIG. 21 a top view of the ribs 636 , 638 shows that the ribs 636 , 638 generally taper inwardly toward the center of the container.
- FIG. 21 also shows a generally flat area 636 a of rib 636 and a generally flat area 638 a of rib 638 .
- the generally flat areas 636 a, 638 a may contact similar sized flat areas formed in the respective spaces between adjacent ribs of a second container that form the container assembly.
- An example of a similar sized flat area formed in a space between adjacent ribs is shown in FIG. 21 with generally flat area 640 .
- a rounded portion 654 transitions from the generally flat areas 636 a, 638 a of the ribs 636 , 638 towards the body portion 612 of the container 610 .
- the rounded portion 654 assists the operability of the container assembly that is releasably lockable.
- the rounded portion 654 eases the alignment of the ribs with their respective spaces as shown in FIG. 24 , by allowing the ribs to slide into their respective spaces when forming a container assembly.
- the shape and size of the plurality of ribs 620 may vary from that shown in FIGS. 18-21 . It is preferred that the plurality of ribs be shaped and sized to minimize the stacking height of the containers used to form container assemblies. It is desirable to minimize the stacking height of the containers to (a) reduce transportation costs and packaging, and (b) provide space efficiency in retail and consumer settings. It is also desirable to maximize the holding strength of the container assembly. The desired holding strength is often a balance between making the container assembly easy for a consumer to open and close, while still preventing or inhibiting an inadvertent opening of the container assembly.
- an optional seal feature 650 formed on the rim 614 is depicted.
- the optional seal feature 650 is located outwardly from the ribs 642 , 644 with respect to the center of the container 610 .
- the optional seal feature 650 is located farther away from the center of the container 610 than the ribs 642 , 644 .
- the optional seal feature 650 in conjunction with a corresponding optional seal feature on another container (not shown), along with the locked ribs of the container assembly, assist in preventing or inhibiting material from leaving or entering the container assembly.
- the optional seal feature is especially useful in preventing or inhibiting product leakage that may occur due to tolerances within the manufacturing process.
- the height of the optional seal feature 650 should be at least one-half of the rib height.
- the optional seal feature may be located inwardly from the ribs such that the seal is formed nearer the center of the container assembly as compared to the releasably lockable ribs.
- the optional seal feature may be formed in a variety of shapes, including a general conical shape.
- a container assembly 700 is depicted in FIGS. 22, 23 .
- the container assembly 700 comprises the first container 610 and a second container 710 .
- the second container 710 is shaped substantially the same as the first container 610 .
- the second container 710 may be identical to the first container 610 . It may be desirable to have containers identically shaped to reduce waste by a consumer when the top container or lid is not used.
- the container assembly may be formed with different first and second containers than plates.
- the container assembly 700 of FIGS. 22, 23 may be formed according to one method by providing the first container 610 and the second container 710 .
- the second container 710 includes a continuous body portion 712 and a continuous rim 714 that encompasses and projects laterally outwardly from the body portion 712 .
- the first container 610 includes the continuous body portion 612 and the continuous rim 614 that encompasses and projects laterally outwardly from the body portion 612 .
- Both of the rims 614 , 714 include a respective plurality of ribs with spaces therebetween (not shown in FIGS. 22, 23 ). Each of the plurality of ribs may be shaped and sized similarly to the ribs shown above in FIGS. 18-21 . Each of the plurality of ribs projects generally upwardly therefrom (i.e., in a direction away from the continuous body portion).
- the second container 710 is flipped 180 degrees relative to the first container 610 such that the containers 610 , 710 are generally aligned and the rims 614 , 714 are adjacent to each other. This flipped position of container 710 relative to the container 610 is shown in FIG. 22 .
- the container 710 may have to be rotated slightly such that the ribs are offset (i.e., the ribs and spaces are aligned). It is desirable that the consumer can assembly the containers so as to form a container assembly of the present invention.
- FIG. 24 adjacent ribs 720 a, 720 b of the container 710 are fit into respective second spaces 622 a, 622 b of the container 610 and ribs 620 a, 620 b of the container 610 are fit into respective spaces 722 a, 722 b such that the container assembly 700 is releasably lockable.
- the container 710 may have to be rotated slightly such that the ribs are offset (i.e., the ribs and spaces are aligned).
- FIG. 24 also depicts interference areas 724 a, 724 b formed between the first rib 620 a and the space 722 a created between ribs 720 a, 720 b of the container 710 .
- This lockable closure is dependent on many variables such as the number of the projecting ribs, the height of those ribs, whether undercuts are included, the size of the contact areas, the clearance needed between spaces and ribs, and the material(s) type and thickness used in forming the container assemblies.
- an optional sealing feature may be added.
- This lockable closure is dependent on many variables such as the number of the projecting ribs, the height of those ribs, whether undercuts are included, the size of the contact areas, the clearance needed between spaces and ribs, and the material(s) type and thickness used in forming the container assemblies.
- an optional sealing feature may be added.
- the container assemblies of the present invention are typically formed from polymeric materials, but may be formed from materials such as paper or metal.
- the polymeric containers may be formed from polyolefins.
- the polymeric food containers are typically formed from orientated polystyrene (OPS), polyethylene terephthalate (PET), high-impact polystyrenes (HIPS), polyvinyl chloride (PVC), polypropylene and combinations thereof.
- the containers assemblies may be made from a mineral-filled polymeric material such as, for example, talc or calcium carbonate-filled polyolefin.
- An example of paper that may be used in forming the container assemblies is paperboard or molded fiber. Paperboard and molded fiber typically have a sufficient coefficient of friction to maintain the first and second containers in a lockable position.
- the materials used in forming the container assembly may assist in releasably locking the container assembly.
- the material(s) forming the container assembly may have a fairly tacky laminate on one side that corresponds with a fairly tacky laminate on the opposing side, resulting in a desirable releasably lockable container assembly.
- the containers used in forming the container assemblies may be made from different materials. It is contemplated that one of ordinary skill in the art will recognize that other polymers or combination of polymers may be used to form the containers.
- the container assemblies of the present invention are typically disposable, but it is contemplated that they may be reused at a future time.
- the containers used in forming the container assemblies e.g., container 10
- the containers are shown as including one compartment. It is contemplated that the containers may be formed of multiple compartments.
- Such containers are desirable for placing items (e.g., food items) in different compartments to prevent or inhibit commingling of items. For example, undesirable mixing of food items can corrupt the flavor and the consistency of the food items.
- the container assemblies may be used with food items.
- a method of using such container assemblies includes placing the food and locking the containers to form a container assembly with food therein.
- the container assembly is then placed in a heating apparatus and heated.
- Typical heating apparatuses include microwaves and conventional ovens.
- the container assemblies may contain solid food products.
- the container assemblies may be used for storage in the refrigerator and/or the freezer.
- the containers to be used in forming the container assemblies of the present invention may be formed using conventional thermoforming (e.g., by pressure, vacuum or the combination thereof), injection-molding processes, or rotational molding.
- thermoforming pellets of a polymeric resin and additives, if any, are added into an extruder.
- the pellets of the polymeric resin and additives, if any, are melted to form a blend.
- the blend is extruded through a die to form an extruded sheet.
- the extruded sheet is thermoformed to a desired shape of a container to be used in forming the container assembly.
- the thickness of the container to be used in forming the container assemblies generally ranges from about 0.002 to about 0.15 inch, but is typically from about 0.005 to about 0.04 inch.
- the container assemblies may be opaque or a variety of colors or color combinations.
- the container assemblies typically have at least one transparent container if it is desired for the customer to ascertain the nature of the accommodated product and the condition thereof without having to open the container assembly.
Abstract
Description
- This application is a continuation-in-part application of U.S. patent application Ser. No. 10/277,303, filed Oct. 22, 2002.
- The present invention relates generally to containers. More particularly, the present invention relates to releasably lockable container assemblies and containers therein.
- The use of inexpensive polymeric, paper or metal packaging containers has become popular, especially for preparing and serving various food products. Polymeric, paper and metal containers generally have been used for heating the food product(s) disposed therein. These containers typically comprise a cover or lid and a base.
- It would be desirable to have a container that would be easy for the customer to close and open. It would also be desirable to provide a container that is releasably lockable and prevents or inhibits material, such as liquid, from leaving the container. It would be desirable for a container to function without necessarily having a lid, but if a lid is desired to form a container assembly, a customer would be able to make such an assembly.
- It would also be desirable to provide a container that is easy to manufacture and reduces the inventory requirement of customers that purchase the containers. It would also be desirable to produce a container that stacks efficiently so as to reduce the costs associated with shipping and storing the containers.
- According to one embodiment, a container assembly comprises a first container and a second container. The first container includes a first continuous body portion and a first rim. The first rim encompasses and projects laterally outwardly from the first body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. The first plurality of ribs have a first sidewall and a second sidewall. A generally flat surface encompasses and bridges the first and second sidewalls of the first plurality of ribs. The first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first body portion. The second container includes a second continuous body portion and a second rim. The second rim encompasses and projects laterally outwardly from the second body portion. The rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs. The second plurality of ribs have a third sidewall and a fourth sidewall. A generally flat surface encompasses and bridges the third and fourth sidewalls of the second plurality of ribs. The second plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first body portion. The first container is shaped substantially the same as the second container. The first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- According to one process, a container assembly is formed that comprises providing a first container that includes a first continuous body portion and a first rim. The first rim encompasses and projects laterally outwardly from the first body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. A second container is provided that includes a second continuous body portion and a second rim. The second rim encompasses and projects laterally outwardly from the second body portion. The rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs. The first container is shaped substantially the same as the second container. One of the first container and the second container is flipped such that the first container and second container are generally aligned and the first rim and the second rim are adjacent to each other. The first plurality of upwardly-projecting ribs is fit into respective second spaces and the second plurality of upwardly-projecting ribs is fit into respective first spaces such that the first container and the second container are releasably lockable to each other.
- According to another embodiment, a container assembly comprises a first container and a second container. The first container includes a first continuous body portion and a first rim. The first rim encompasses and projects laterally outwardly from the first body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. The second container includes a second continuous body portion and a second rim. The second rim encompasses and projects laterally outwardly from the second body portion. The rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs. The second rim and the first rim are shaped substantially the same. The first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- According to another process, a container assembly is formed that comprises providing a first container that includes a first continuous body portion and a first rim. The first rim encompasses and projects laterally outwardly from the first body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. A second container is provided that includes a second continuous body portion and a second rim. The second rim encompasses and projects laterally outwardly from the second body portion. The rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs. The second rim and the first rim are shaped substantially the same. One of the first container and the second container is flipped such that the first container and second container are generally aligned and the first rim and the second rim are adjacent to each other. The first plurality of upwardly-projecting ribs is fit into respective second spaces and the second plurality of upwardly-projecting ribs is fit into respective first spaces such that the first container and the second container are releasably lockable to each other.
- According to a further embodiment, a container assembly comprises a first and second container. The first container includes a first continuous body portion and a first rim. The first rim encompasses and projects laterally outwardly from the first body portion. The rim has a first plurality of upwardly projecting features with first spaces being formed between adjacent upwardly projecting features. The second container includes a second continuous body portion and a second rim. The second rim encompasses and projects laterally outwardly from the second body portion. The rim has a second plurality of upwardly projecting features with second spaces being formed between adjacent upwardly projecting features. The second rim and the first rim are shaped substantially the same. The first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly projecting features into respective second spaces and fitting the second plurality of upwardly projecting features into respective first spaces.
- According to yet another embodiment, a container to be used in a container assembly comprises a continuous body portion and a rim. The rim encompasses and projects laterally outwardly from the body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. The rim is adapted to be releasably lockable by fitting the first plurality of ribs and first spaces into respective second spaces and second plurality of ribs of a second container. The second spaces and the second plurality of ribs are shaped substantially the same as respective first spaces and first plurality of ribs.
- According to yet a further embodiment, a container assembly comprises a first and second container. The first container includes a first continuous body portion and a first rim. The first rim encompasses and projects laterally outwardly from the first body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. The second container includes a second continuous body portion and a second rim. The second rim encompasses and projects laterally outwardly from the second body portion. The rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs. The first container is shaped substantially the same as the second container. The first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces. The first rim and the second rim are adapted to form a seal.
- According to still yet another embodiment, a container assembly comprises a first container and a second container. The first container includes a first continuous body portion and a first rim. The first rim encompasses and projects laterally outwardly from the first body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. The first plurality of ribs have a first sidewall and a second sidewall. A generally flat surface encompasses and bridges the first and second sidewalls of the first plurality of ribs. The first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first body portion. The second container includes a second continuous body portion and a second rim. The second rim encompasses and projects laterally outwardly from the second body portion. The rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs. The second plurality of ribs have a third sidewall and a fourth sidewall. A generally flat surface encompasses and bridges the third and fourth sidewalls of the second plurality of ribs. The second plurality of ribs have a rounded portion that transitions from the generally flat surface towards the second body portion. The first container is shaped substantially the same as the second container. The first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- According to still yet a further embodiment, a container assembly comprises a first container and a second container. The first container includes a first continuous body portion and a first rim. The first rim encompasses and projects laterally outwardly from the first body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. The first plurality of ribs have a first sidewall and a second sidewall. A generally flat surface encompasses and bridges the first and second sidewalls of the first plurality of ribs. The first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first and second sidewalls. The second container includes a second continuous body portion and a second rim. The second rim encompasses and projects laterally outwardly from the second body portion. The rim has a second plurality of ribs projecting generally upwardly therefrom such that second spaces are formed between adjacent ribs. The second plurality of ribs have a third sidewall and a fourth sidewall. A generally flat surface encompasses and bridges the third and fourth sidewalls of the second plurality of ribs. The second plurality of ribs have a rounded portion that transitions from the generally flat surface towards the third and fourth sidewalls. The first container is shaped substantially the same as the second container. The first container and the second container are adapted to be releasably lockable to each other by fitting the first plurality of upwardly-projecting ribs into respective second spaces and fitting the second plurality of upwardly-projecting ribs into respective first spaces.
- According to yet again another embodiment, a container to be used in a container assembly comprises a continuous body portion and a rim. The rim encompasses and projects laterally outwardly from the body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. The first plurality of ribs have a first sidewall and a second sidewall and a generally flat surface that encompasses and bridges the first and second sidewalls. The first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first body portion. The rim is adapted to be releasably lockable by fitting the first plurality of ribs and first spaces into respective second spaces and second plurality of ribs of a second container. The second spaces and the second plurality of ribs are shaped substantially the same as respective first spaces and first plurality of ribs.
- According to yet again a further embodiment, a container to be used in a container assembly comprises a continuous body portion and a rim. The rim encompasses and projects laterally outwardly from the body portion. The rim has a first plurality of ribs projecting generally upwardly therefrom such that first spaces are formed between adjacent ribs. The first plurality of ribs have a first sidewall and a second sidewall and a generally flat surface that encompasses and bridges the first and second sidewalls. The first plurality of ribs have a rounded portion that transitions from the generally flat surface towards the first and second sidewalls. The rim is adapted to be releasably lockable by fitting the first plurality of ribs and first spaces into respective second spaces and second plurality of ribs of a second container. The second spaces and the second plurality of ribs are shaped substantially the same as respective first spaces and first plurality of ribs.
-
FIG. 1 is a side view of a container to be used in one embodiment of the invention; -
FIG. 2 is a top view of the container ofFIG. 1 ; -
FIG. 3 is an enlarged cross-sectional view taken generally along linesFIG. 3 -FIG. 3 inFIG. 2 ; -
FIG. 4 is an enlarged top view of generally circular regionFIG. 4 ofFIG. 2 ; -
FIG. 5 is a perspective view of generally circular regionFIG. 5 ofFIG. 2 depicting two adjacent projecting ribs; -
FIG. 6 is a sectional view of generally circular regionFIG. 6 ofFIG. 1 according to one embodiment. -
FIG. 7 a is a side view of a container assembly in a releasably lockable position using the container ofFIG. 1 and a second identical container ofFIG. 1 according to one embodiment of the present invention; -
FIG. 7 b is a top view of the container assembly ofFIG. 7 a; -
FIG. 8 is an enlarged cross-sectional view taken generally along linesFIG. 8 -FIG. 8 inFIG. 7 b; -
FIG. 9 is a side view of a container to be used in another embodiment of the invention; -
FIG. 10 is a top view of the container ofFIG. 9 ; -
FIG. 11 is an enlarged top view of generally circular regionFIG. 11 ofFIG. 10 ; -
FIG. 12 is a perspective view of generally circular regionFIG. 11 ofFIG. 10 depicting two adjacent projecting ribs; -
FIG. 13 is an enlarged cross-sectional view taken generally along linesFIG. 13 -FIG. 13 inFIG. 12 ; -
FIG. 14 a is a side view of a container assembly in a releasably lockable position using the container ofFIG. 9 and a second identical container ofFIG. 9 according to another embodiment of the present invention; -
FIG. 14 b is a top view of the container assembly ofFIG. 14 a; -
FIG. 15 is an enlarged cross-sectional view taken generally along linesFIG. 15 -FIG. 15 inFIG. 14 b; -
FIG. 16 a is a top view of yet another container to be used in the present invention; and -
FIG. 16 b is an enlarged cross-sectional view taken generally along linesFIG. 16 b-FIG. 16 b inFIG. 16 a. -
FIG. 17 is a side view of a container to be used in a further embodiment of the invention; -
FIG. 18 is a top view of the container ofFIG. 17 ; -
FIG. 19 is an enlarged cross-sectional view taken generally along linesFIG. 19 -FIG. 19 ofFIG. 18 ; -
FIG. 20 is an enlarged perspective view of generally circular regionFIG. 20 ofFIG. 18 depicting two adjacent projecting ribs; -
FIG. 21 is an enlarged top view of generally circular regionFIG. 21 ofFIG. 18 . -
FIG. 22 is a side view of a container assembly in a releasably lockable position using the container ofFIG. 17 and a second identical container ofFIG. 17 according to one embodiment of the present invention; -
FIG. 23 is a top view of the container assembly ofFIG. 22 ; -
FIG. 24 is an enlarged cross-sectional view taken generally along linesFIG. 24 -FIG. 24 ofFIG. 23 - While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawing and will herein be described in detail. It should be understood, however, that it is not intended to limit the invention to the particular forms disclosed but, on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
- Referring to
FIGS. 1-5 , a container (e.g., plate 10) to be used in one embodiment of the present invention is shown. Theplate 10 is used with a second plate 110 (seeFIGS. 7 and 8 ) that may be substantially the same or, alternatively, identical to theplate 10 to form a container assembly that is releasably lockable. - It is contemplated that other container assemblies may be formed besides those using plates. For example, container assemblies may be formed, but are not limited to, using plates, bowls, platters, tubs, single-serve and family-size containers, single-serve and family-size ovenware, and combinations thereof. One such combination is a bowl and a plate that forms a container assembly. The remainder of the application will discuss container and container assemblies with respect to plates although it is recognized by one of ordinary skill in the art that other container assemblies, such as those discussed above, may be formed.
- The height and shape of the container assembly may vary from that shown without departing from the scope of the invention. For example, the container assemblies of
FIGS. 7 a and 14 a, as will be discussed, are depicted as being generally circular. It is contemplated that the container assemblies and containers used herein may be other shapes such as rectangular, square, hexagonal, octagonal, other polygonal shapes, or oval. - The container assemblies of the present invention are typically used with respect to food, but may be used in other applications such as with medical applications, cosmetics or other items. Food container assemblies may be used for serving, storing, preparing and/or re-heating the food.
- Referring back to
FIGS. 1-2 , thecontainer 10 includes acontinuous body portion 12 and acontinuous rim 14 encompassing and projecting laterally outwardly from thebody portion 12. Thebody portion 12 includes a bottom 16 and acontinuous sidewall 18 encompassing and projecting upwardly and outwardly from the bottom 16. It is contemplated that the sidewall may project only upwardly from the bottom 16 or even project upwardly and inwardly from the bottom 16. It is also contemplated that the rim may not be continuous, although it is preferred to be continuous. - Referring specifically to
FIG. 2 , thecontinuous rim 14 includes a plurality of ribs 20 that project generally upwardly therefrom. The plurality of ribs 20 is spaced around the general periphery of thecontainer 10 and assists in forming a releasably lockable container assembly. The orientation of the plurality of ribs 20 creates a pattern that is generally normal to the direction of therim 14. More specifically, the orientation of the plurality of ribs 20 may create a pattern that is normal to the direction of therim 14. In a radial configuration with a pattern that is normal to the direction of the rim, each of the plurality of ribs 20, if extended inwardly, would pass through the general center of the plate. - The plurality of ribs 20, however, may be formed in different patterns than shown in
FIG. 2 with respect to the rim 14 (e.g., diagonally). It may be desirable to form the plurality of ribs 20 in a decorative pattern for aesthetic reasons. Such a decorative feature may assist in “hiding” or disguising the releasable lockable feature in thecontainer 10. Thecontainer 10 ofFIG. 2 has exactly 60 ribs formed in thecontinuous rim 14. It is contemplated that the number of ribs may vary from that shown inFIG. 2 . For example, a container may have from about 3 to about 10 ribs. A container may have greater than about 20 or about 40 ribs, and may even have up to or greater than about 120 ribs. The desired number of ribs formed on the container will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly. The desired holding strength depends on factors such as the weight of item(s) placed in the container assembly and its perceived usage. - Turning to
FIGS. 3-5 , the plurality of ribs 20 is shown in greater detail. Specifically, a cross-sectional view ofFIG. 3 shows two adjacent ribs that project upwardly from thecontinuous rim 14.FIG. 3 depicts afirst rib 20 a and asecond rib 20 b with aspace 22 being formed therebetween. Thefirst rib 20 a ofFIG. 3 comprises a generallyflat surface 24 that bridges twosidewalls first rib 20 a is shown as being generally perpendicular to the plane of the remainder of thecontinuous rim 14. Specifically, thefirst rib 20 a is shown as being generally perpendicular to plane CC formed along the remainder of therim 14 inFIG. 3 . More specifically, the rib may be perpendicular to the plane of the remainder of the rim. Thesidewalls rim 14. Thesidewalls rim 14. - Similarly,
second rib 20 b ofFIG. 3 comprises a generallyflat surface 30 that bridges twosidewalls 32, 34. Thesecond rib 20 b is also shown as being generally perpendicular to the plane CC of the remainder of therim 14. Thesidewalls 32, 34 are spaced apart from each other and are shown as being generally perpendicular to the plane CC of the remainder of therim 14. - To provide an improved locked container assembly, at least one of the rib sidewalls may have an undercut. Such an optional undercut formed in the rib sidewall engages a similar undercut in a corresponding space formed between adjacent ribs of a second container when the container assembly is formed. This is discussed below in further detail with respect to
FIGS. 7-8 . For example, inFIG. 3 ,optional undercuts respective sidewalls - The number of undercuts formed in the rib sidewalls, if any, depends on factors such as the desired leak-resistant, the type of closure mechanism, manufacturability of the container assemblies, and the material(s) type and thicknesses used in forming the container assemblies. For example, if the container assemblies are made of a first material that has a higher coefficient of friction than a second material, then the container made of the first material will likely need less undercuts in its sidewalls than the same container made with the second material to have the same holding strength. The number of undercuts used also depends on the fitness of use of the container assembly, including the holding strength thereof.
- It is contemplated that the ribs may have sidewalls with no undercuts or at least one undercut (e.g.,
first rib 20 a withoptional undercuts FIG. 3 ). It is also contemplated that some ribs within the same container may have no undercuts, while other ribs may have one or more undercuts. - Referring to
FIGS. 4 and 5 ,adjacent ribs rim 14 are shown in more detail. InFIG. 4 , a top view of theribs ribs FIG. 4 also shows a generallyflat area 36 a ofrib 36 and a generallyflat area 38 a ofrib 38. To improve the sealability of the container assembly, the generallyflat areas FIG. 4 with generallyflat area 40. -
FIG. 5 showsadjacent ribs flat areas ribs flat area 46 that is formed between generallyflat areas FIG. 5 , the width W1 of generallyflat area 42 a may be smaller than width W2. With, for example, rectangular-shaped containers, the size of the generally flat areas typically remains constant as the distance increases from the center of the container. It is contemplated that this area of the ribs may be sized and shaped differently than shown inFIGS. 4 and 5 . - It is contemplated that the shape and size of the plurality of ribs 20 may vary from that shown in
FIGS. 2-5 . It is preferred that the plurality of ribs be shaped and sized to minimize the stacking height of the containers used to form container assemblies. It is desirable to minimize the stacking height of the containers to (a) reduce transportation costs and packaging, and (b) provide space efficiency in retail and consumer settings. It is also desirable to maximize the holding strength of the container assembly. The desired holding strength is often a balance between making the container assembly easy for a consumer to open and close, while still preventing or inhibiting an inadvertent opening of the container assembly. - It is contemplated that the upwardly projecting features may be shaped differently than the ribs shown in
FIGS. 2-5 and 11-13. For example, the upwardly projecting features may be a plurality of round, oval, square, or polygonal features. It is contemplated that many shapes and sizes may be formed by the upwardly projecting features used in the present invention. - Referring to
FIGS. 5 and 6 , anoptional seal feature 50 formed on therim 14 is depicted. InFIG. 6 , theoptional seal feature 50 is located outwardly from therib 52 with respect to the center of thecontainer 10. In other words, theoptional seal feature 50 is located farther away from the center of thecontainer 10 than therib 52. Theoptional seal feature 50 in conjunction with a corresponding optional seal feature on another container (not shown), along with the locked ribs of the container assembly, assist in preventing or inhibiting material from leaving or entering the container assembly. The optional seal feature is especially useful in preventing or inhibiting product leakage that may occur due to tolerances within the manufacturing process. To provide an efficient seal, the height H1 of theoptional seal feature 50 should be at least one-half of the rib height H2. - The optional seal feature, however, may be located inwardly from the ribs such that the seal is formed nearer the center of the container assembly as compared to the releasably lockable ribs. For example, in
FIGS. 16 a and 16 b, acontainer 510 includes a plurality ofribs 520 and also includes anoptional seal feature 550. InFIGS. 6 and 16 b, theoptional seal feature 550 is located inwardly from the plurality ofribs 520 with respect to the center of thecontainer 510. Theoptional seal feature 550 in conjunction with a corresponding seal feature on another container (not shown), along with the locked ribs of the container assembly, assist in preventing or inhibiting material from leaving or entering the container assembly. The optional seal feature may be formed in a variety of shapes, including a general conical shape. - A
container assembly 100 according to one embodiment of the present invention is depicted inFIGS. 7 a, 7 b. Thecontainer 100 comprises thefirst container 10 and asecond container 110. In one embodiment, thesecond container 110 is shaped substantially the same as thefirst container 10. Alternatively, thesecond container 110 may be identical to thefirst container 10. It may be desirable to have containers identically shaped to reduce waste by a consumer when the top container or lid is not used. As discussed above, the container assembly may be formed with different first and second containers than plates. - The
container assembly 100 ofFIGS. 7 a, 7 b may be formed according to one method by providing thefirst container 10 and thesecond container 110. Thesecond container 110 includes acontinuous body portion 112 and acontinuous rim 114 that encompasses and projects laterally outwardly from thebody portion 112. Similarly, thefirst container 10, as discussed above, includes thecontinuous body portion 12 and thecontinuous rim 14 that encompasses and projects laterally outwardly from thebody portion 12. Both of therims FIGS. 7 a, 7 b). Each of the plurality of ribs may be shaped and sized similarly to the ribs 20 shown above inFIGS. 2-5 . Each of the plurality of ribs projects generally upwardly therefrom (i.e., in a direction away from the continuous body portion). - The
second container 110 is flipped 180 degrees relative to thefirst container 10 such that thecontainers rims container 110 relative to thecontainer 10 is shown inFIG. 7 a. To fit the ribs into respective spaces, thecontainer 110 may have to be rotated slightly such that the ribs are offset (i.e., the ribs and spaces are aligned). It is desirable that the consumer can assembly the containers so as to form a container assembly of the present invention. - Referring to
FIG. 8 ,adjacent ribs container 110 are fit into respectivesecond spaces container 10 andribs container 10 are fit intorespective spaces container assembly 100 is releasably lockable. To fit the ribs into respective spaces, thecontainer 110 may have to be rotated slightly such that the ribs are offset (i.e., the ribs and spaces are aligned).FIG. 8 also depictsinterference areas first rib 20 a and thespace 122 a created betweenribs container 110. - The strength of this lockable closure is dependent on many variables such as the number of the projecting ribs, the height of those ribs, whether undercuts are included, the size of the contact areas, the clearance needed between spaces and ribs, and the material(s) type and thickness used in forming the container assemblies. To improve the lockability of the container assembly, as discussed above, an optional sealing feature may be added.
- Referring to
FIGS. 9-10 , a container (e.g., plate 210) includes acontinuous body portion 212 and acontinuous rim 214 encompassing and projecting laterally outwardly from thebody portion 212. Thebody portion 212 includes a bottom 216 and acontinuous sidewall 218 encompassing and projecting upwardly and outwardly from the bottom 216. It is contemplated that the sidewall may project only upwardly from the bottom 216 or even project upwardly and inwardly from the bottom 216. It is also contemplated that the rim may not be continuous, although it is preferred to be continuous. - Referring to
FIGS. 10 and 11 , thecontinuous rim 214 includes a plurality of rib sets 220 that project generally upwardly therefrom. The plurality of rib sets 220 is spaced around the general periphery of thecontainer 210 and assists in forming a releasably lockable container assembly. The orientation of the plurality of rib sets 220 creates a pattern that is generally parallel or generally concentric with the general direction of therim 214. In other words, each of the plurality of rib sets 220, if extended outwardly, would be no closer to the general center of thecontainer 210. The plurality of rib sets 220 is in the opposite direction of the plurality of ribs 20 inFIGS. 2-5 . - The plurality of rib sets 220, however, may be formed in different patterns than shown in
FIG. 10 with respect to the rim 214 (e.g., diagonally). It may be desirable to form the plurality of rib sets 220 in a decorative pattern for aesthetic reasons. Such a decorative feature may assist in “hiding” or disguising the releasable lockable feature in thecontainer 210. - The
container 210 ofFIG. 10 has exactly 60 sets of ribs formed in thecontinuous rim 214. As will be discussed in more detail below, each of the plurality of rib sets 220 has a first set of ribs on a raised portion and a second set of ribs on a recessed portion. It is contemplated that the number of rib sets may vary from that shown inFIG. 10 . For example, a container may have from about 2 to about 30 sets of ribs. A container may have greater than about 40 or about 80 sets of ribs, and may even have up to or greater than about 120 sets of ribs. The desired number of ribs formed on the container will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly. The desired holding strength may depend on factors such as the weight of item(s) placed in the container assembly and its perceived usage. - Turning to
FIGS. 11-13 , two adjacent sets of ribs are shown in greater detail. The number of ribs in a set varies inFIGS. 11 and 12 depending on whether the ribs are located in a recessed area or a raised area formed in therim 214. For example, inFIGS. 11 and 12 , recessedarea 240 has afirst rib 242 and asecond rib 244 withspaces area 260 ofFIGS. 11 and 12 , however, has afirst rib 262, asecond rib 264, and athird rib 266 withspaces FIGS. 11 and 12 projects upwardly from thecontinuous rim 214. - Referring specifically to
FIG. 13 , a cross-sectional view of the recessedarea 240 is depicted and includes theribs first rib 242 ofFIG. 13 comprises a generallyflat surface 288 that bridges twosidewalls first rib 242 is shown as being generally perpendicular to the plane of the remainder of thecontinuous rim 214. Specifically, thefirst rib 242 is shown as being generally perpendicular to plane DD formed along the remainder of therim 214 inFIG. 13 . More specifically, the rib may be perpendicular to the plane of the remainder of the rim. Thesidewalls rim 214. Thesidewalls rim 214. - Similarly,
second rib 244 ofFIG. 13 comprises a generallyflat surface 298 that bridges twosidewalls second rib 244 is also shown as being generally perpendicular to the plane DD of the remainder of therim 214. Thesidewalls rim 214. - To provide an improved locked container assembly, at least one of the rib sidewalls may have an optional undercut. As discussed above, such an undercut formed in the rib sidewall engages a similar undercut in the spaces formed between adjacent ribs when the container assembly is formed. For example, in
FIG. 13 ,optional undercuts respective sidewalls - As discussed above, the number of undercuts formed in the rib sidewalls, if any, depends on several factors. It is contemplated that the ribs may have sidewalls with no undercuts or at least one undercut (e.g.,
first rib 242 withoptional undercuts FIG. 13 ). It is also contemplated that some ribs within the same container may have no undercuts, while other ribs have one or more undercuts. - Referring back to
FIG. 12 , the raised and recessedareas rib 242 includes a top surface or generallyflat area 242 a. Similarly, therib 264 includes a top surface or generallyflat area 264 a. To improve the sealability of the container assembly, the generallyflat areas FIG. 12 withspace 246. As shown inFIG. 12 , a generallyflat area 282 is formed between adjacent sets of ribs (i.e., the raised and recessed portions) to assist in releasably locking the container assembly. It is contemplated that this area of the ribs may be sized and shaped differently than shown inFIGS. 11-13 . It is contemplated that the numbers of ribs in a set of ribs may vary from that shown inFIGS. 11 and 12 (two ribs in the recessed areas and three ribs in the raised areas) - It is contemplated that the shape and size of the plurality of
ribs 220 may vary from that shown inFIGS. 10-13 . It is preferred that the plurality of ribs be shaped and sized to minimize the stacking height of the containers. It is desirable to minimize the stacking height of the containers to (a) reduce transportation costs and packaging, and (b) provide space efficiency in retail and consumer settings. It is also desirable to maximize the holding strength of the container assembly. The desired holding strength is often a balance between making the container assembly easy for a consumer to open and close, while still preventing or inhibiting an inadvertent opening of the container assembly. - Referring specifically to
FIG. 12 , anoptional seal feature 350 formed on therim 214 is depicted. Theoptional seal feature 350 is located outwardly from theribs container 210. In other words, theoptional seal feature 350 is located farther away from the center of thecontainer 210 than the ribs. Theoptional seal feature 350 in conjunction with a corresponding seal feature on another container (e.g.optional seal feature 450 shown inFIG. 15 ), along with the locked ribs of the container assembly, assist in preventing or inhibiting material from leaving or entering the container assembly. The optional seal feature is especially useful in preventing or inhibiting product leakage that may occur due to tolerances within the manufacturing process. To provide an efficient seal, the height of the optional seal feature should be at least one-half of the rib height. This is shown inFIG. 15 where the optional seal features 350 and 450 contact each other. - As discussed above with respect to
FIGS. 16 a, b above, the optional seal feature, however, may be located inwardly from the ribs such that the seal is formed nearer the center of the container assembly as compared to the releasably lockable ribs. - A
container assembly 400 according to one embodiment of the present invention is depicted inFIGS. 14 a, 14 b. Thecontainer 400 comprises thefirst container 210 and asecond container 410. In one embodiment, thesecond container 410 is shaped substantially the same as thefirst container 210. Alternatively, thesecond container 410 may be identical to thefirst container 210. As discussed above, the container assembly may be formed with different first and second containers than plates. For example, the container assembly may be formed using a bowl and a plate. - The
container assembly 400 ofFIGS. 14 a, 14 b may be formed according to one method by providing thefirst container 210 and thesecond container 410. Thesecond container 410 includes acontinuous body portion 412 and acontinuous rim 414 that encompasses and projects laterally outwardly from thebody portion 412. Similarly, thefirst container 210, as discussed above, includes thecontinuous body portion 212 and thecontinuous rim 214 that encompasses and projects laterally outwardly from thebody portion 212. Both of therims FIGS. 14 a, 14 b). Each of the plurality of ribs may be shaped and sized similarly to theribs 220 shown above inFIGS. 10-13 . Each of the plurality of ribs projects generally upwardly therefrom (i.e., in a direction away from the continuous body portion). - As discussed above with
container assembly 100, thesecond container 410 is flipped 180 degrees relative to thefirst container 210 such that thecontainers rims container 410 relative to thecontainer 210 is shown inFIG. 14 a. - Referring to
FIG. 15 ,adjacent ribs container 210 are fit into respectivesecond spaces container 410 andribs container 410 are fit intorespective spaces container assembly 400 is releasably lockable. - Referring to
FIGS. 17-21 , a container (e.g., plate 610) to be used in a further embodiment of the present invention is shown. Theplate 610 is used with a second plate 710 (seeFIGS. 22 and 23 ) that may be substantially the same or, alternatively, identical to theplate 610 to form a container assembly that is releasably lockable. - Referring to
FIGS. 17-18 , thecontainer 610 includes acontinuous body portion 612 and acontinuous rim 614 encompassing and projecting laterally outwardly from thebody portion 612. Thebody portion 612 includes a bottom 616 and acontinuous sidewall 618 encompassing and projecting upwardly and outwardly from the bottom 616. It is contemplated that the sidewall may project only upwardly from the bottom 616 or even project upwardly and inwardly from the bottom 616. It is also contemplated that the rim may not be continuous, although it is preferred to be continuous.Optional handle portions 652 are included on thecontainer 610 to assist the users ability to utilize thecontainer 610. - Referring specifically to
FIG. 18 , thecontinuous rim 614 includes a plurality ofribs 620 that project generally upwardly therefrom. The plurality ofribs 620 is spaced around the general periphery of thecontainer 610 and assists in forming a releasably lockable container assembly. The orientation of the plurality ofribs 620 creates a pattern that is generally normal to the direction of therim 614. More specifically, the orientation of the plurality ofribs 620 may create a pattern that is normal to the direction of therim 614. In a radial configuration with a pattern that is normal to the direction of the rim, each of the plurality ofribs 620, if extended inwardly, would pass through the general center of the plate. - The plurality of
ribs 620, however, may be formed in different patterns than shown inFIG. 18 with respect to the rim 614 (e.g., diagonally). Thecontainer 610 ofFIG. 18 has exactly 44 ribs formed in thecontinuous rim 614. It is contemplated that the number of ribs may vary from that shown inFIG. 18 . For example, a container may have from about 3 to about 10 ribs. A container generally has from about 20 ribs to about 60 ribs. Containers typically have from about 30 ribs to about 50 ribs. The desired number of ribs formed on the container will often vary depending on factors such as the size or shape of the container assembly, the material(s) type and thicknesses of the container assembly, and the desired holding strength of the container assembly. The desired holding strength depends on factors such as the weight of item(s) placed in the container assembly and its perceived usage. - Turning to
FIGS. 19-21 , the plurality ofribs 620 is shown in greater detail. Specifically, a cross-sectional view ofFIG. 19 shows two adjacent ribs that project upwardly from thecontinuous rim 614.FIG. 19 depicts afirst rib 620 a and asecond rib 620 b with aspace 622 being formed therebetween. Thefirst rib 620 a ofFIG. 19 comprises a generallyflat surface 624 that bridges twosidewalls first rib 620 a is shown as being generally perpendicular to the plane of the remainder of thecontinuous rim 614. Specifically, thefirst rib 620 a is shown as being generally perpendicular to plane EE formed along the remainder of therim 614 inFIG. 19 . More specifically, the rib may be perpendicular to the plane of the remainder of the rim. Thesidewalls rim 14. Thesidewalls rim 14. - Similarly,
second rib 620 b ofFIG. 19 comprises a generallyflat surface 630 that bridges twosidewalls second rib 620 b is also shown as being generally perpendicular to the plane EE of the remainder of therim 614. Thesidewalls rim 614. - To provide an improved locked container assembly, at least one of the rib sidewalls may have an undercut. Such an optional undercut formed in the rib sidewall engages a similar undercut in a corresponding space formed between adjacent ribs of a second container when the container assembly is formed. This is discussed below in further detail with respect to
FIGS. 22-24 . For example, inFIG. 19 ,optional undercuts respective sidewalls - The number of undercuts formed in the rib sidewalls, if any, depends on factors such as the desired holding strength, the desired leak-resistant, the type of closure mechanism, manufacturability of the container assemblies, and the material(s) type and thicknesses used in forming the container assemblies. For example, if the container assemblies are made of a first material that has a higher coefficient of friction than a second material, then the container made of the first material will likely need less undercuts in its sidewalls than the same container made with the second material to have the same holding strength. The number of undercuts used also depends on the fitness of use for a particular application of the container assembly, including the holding strength thereof.
- It is contemplated that the ribs may have sidewalls with no undercuts or at least one undercut (e.g.,
first rib 620 a withoptional undercuts FIG. 19 ). It is also contemplated that some ribs within the same container may have no undercuts, while other ribs may have one or more undercuts. - Referring to
FIG. 20 ,adjacent ribs rim 614 are shown in more detail.FIG. 20 showsadjacent ribs flat areas ribs flat area 646 that is formed between generallyflat areas - In
FIG. 21 , a top view of theribs ribs FIG. 21 also shows a generallyflat area 636 a ofrib 636 and a generallyflat area 638 a ofrib 638. To improve the sealability of the container assembly, the generallyflat areas FIG. 21 with generallyflat area 640. Arounded portion 654 transitions from the generallyflat areas ribs body portion 612 of thecontainer 610. Therounded portion 654 assists the operability of the container assembly that is releasably lockable. Therounded portion 654 eases the alignment of the ribs with their respective spaces as shown inFIG. 24 , by allowing the ribs to slide into their respective spaces when forming a container assembly. - It is contemplated that the shape and size of the plurality of
ribs 620 may vary from that shown inFIGS. 18-21 . It is preferred that the plurality of ribs be shaped and sized to minimize the stacking height of the containers used to form container assemblies. It is desirable to minimize the stacking height of the containers to (a) reduce transportation costs and packaging, and (b) provide space efficiency in retail and consumer settings. It is also desirable to maximize the holding strength of the container assembly. The desired holding strength is often a balance between making the container assembly easy for a consumer to open and close, while still preventing or inhibiting an inadvertent opening of the container assembly. - Referring back to
FIG. 20 , anoptional seal feature 650 formed on therim 614 is depicted. InFIG. 20 , theoptional seal feature 650 is located outwardly from theribs container 610. In other words, theoptional seal feature 650 is located farther away from the center of thecontainer 610 than theribs optional seal feature 650 in conjunction with a corresponding optional seal feature on another container (not shown), along with the locked ribs of the container assembly, assist in preventing or inhibiting material from leaving or entering the container assembly. The optional seal feature is especially useful in preventing or inhibiting product leakage that may occur due to tolerances within the manufacturing process. To provide an efficient seal, the height of theoptional seal feature 650 should be at least one-half of the rib height. - The optional seal feature, however, may be located inwardly from the ribs such that the seal is formed nearer the center of the container assembly as compared to the releasably lockable ribs. The optional seal feature may be formed in a variety of shapes, including a general conical shape.
- A
container assembly 700 according to one embodiment of the present invention is depicted inFIGS. 22, 23 . Thecontainer assembly 700 comprises thefirst container 610 and asecond container 710. In one embodiment, thesecond container 710 is shaped substantially the same as thefirst container 610. Alternatively, thesecond container 710 may be identical to thefirst container 610. It may be desirable to have containers identically shaped to reduce waste by a consumer when the top container or lid is not used. As discussed above, the container assembly may be formed with different first and second containers than plates. - The
container assembly 700 ofFIGS. 22, 23 may be formed according to one method by providing thefirst container 610 and thesecond container 710. Thesecond container 710 includes acontinuous body portion 712 and acontinuous rim 714 that encompasses and projects laterally outwardly from thebody portion 712. Similarly, thefirst container 610, as discussed above, includes thecontinuous body portion 612 and thecontinuous rim 614 that encompasses and projects laterally outwardly from thebody portion 612. Both of therims FIGS. 22, 23 ). Each of the plurality of ribs may be shaped and sized similarly to the ribs shown above inFIGS. 18-21 . Each of the plurality of ribs projects generally upwardly therefrom (i.e., in a direction away from the continuous body portion). - The
second container 710 is flipped 180 degrees relative to thefirst container 610 such that thecontainers rims container 710 relative to thecontainer 610 is shown inFIG. 22 . To fit the ribs into respective spaces, thecontainer 710 may have to be rotated slightly such that the ribs are offset (i.e., the ribs and spaces are aligned). It is desirable that the consumer can assembly the containers so as to form a container assembly of the present invention. - Referring to
FIG. 24 ,adjacent ribs container 710 are fit into respectivesecond spaces container 610 andribs container 610 are fit intorespective spaces container assembly 700 is releasably lockable. To fit the ribs into respective spaces, thecontainer 710 may have to be rotated slightly such that the ribs are offset (i.e., the ribs and spaces are aligned).FIG. 24 also depictsinterference areas first rib 620 a and thespace 722 a created betweenribs container 710. - The strength of this lockable closure is dependent on many variables such as the number of the projecting ribs, the height of those ribs, whether undercuts are included, the size of the contact areas, the clearance needed between spaces and ribs, and the material(s) type and thickness used in forming the container assemblies. To improve the lockability of the container assembly, as discussed above, an optional sealing feature may be added.
- The strength of this lockable closure is dependent on many variables such as the number of the projecting ribs, the height of those ribs, whether undercuts are included, the size of the contact areas, the clearance needed between spaces and ribs, and the material(s) type and thickness used in forming the container assemblies. To improve the lockability of the container assembly, as discussed above, an optional sealing feature may be added.
- The container assemblies of the present invention are typically formed from polymeric materials, but may be formed from materials such as paper or metal. The polymeric containers may be formed from polyolefins. The polymeric food containers are typically formed from orientated polystyrene (OPS), polyethylene terephthalate (PET), high-impact polystyrenes (HIPS), polyvinyl chloride (PVC), polypropylene and combinations thereof. The containers assemblies may be made from a mineral-filled polymeric material such as, for example, talc or calcium carbonate-filled polyolefin. An example of paper that may be used in forming the container assemblies is paperboard or molded fiber. Paperboard and molded fiber typically have a sufficient coefficient of friction to maintain the first and second containers in a lockable position.
- As discussed, the materials used in forming the container assembly may assist in releasably locking the container assembly. For example, the material(s) forming the container assembly may have a fairly tacky laminate on one side that corresponds with a fairly tacky laminate on the opposing side, resulting in a desirable releasably lockable container assembly.
- It is contemplated that the containers used in forming the container assemblies may be made from different materials. It is contemplated that one of ordinary skill in the art will recognize that other polymers or combination of polymers may be used to form the containers.
- The container assemblies of the present invention are typically disposable, but it is contemplated that they may be reused at a future time. The containers used in forming the container assemblies (e.g., container 10) are shown as including one compartment. It is contemplated that the containers may be formed of multiple compartments. Such containers are desirable for placing items (e.g., food items) in different compartments to prevent or inhibit commingling of items. For example, undesirable mixing of food items can corrupt the flavor and the consistency of the food items.
- As discussed above, the container assemblies may be used with food items. A method of using such container assemblies includes placing the food and locking the containers to form a container assembly with food therein. The container assembly is then placed in a heating apparatus and heated. Typical heating apparatuses include microwaves and conventional ovens. The container assemblies may contain solid food products. The container assemblies may be used for storage in the refrigerator and/or the freezer.
- The containers to be used in forming the container assemblies of the present invention may be formed using conventional thermoforming (e.g., by pressure, vacuum or the combination thereof), injection-molding processes, or rotational molding. According to one method of thermoforming, pellets of a polymeric resin and additives, if any, are added into an extruder. The pellets of the polymeric resin and additives, if any, are melted to form a blend. The blend is extruded through a die to form an extruded sheet. The extruded sheet is thermoformed to a desired shape of a container to be used in forming the container assembly.
- The thickness of the container to be used in forming the container assemblies generally ranges from about 0.002 to about 0.15 inch, but is typically from about 0.005 to about 0.04 inch. The container assemblies may be opaque or a variety of colors or color combinations. The container assemblies typically have at least one transparent container if it is desired for the customer to ascertain the nature of the accommodated product and the condition thereof without having to open the container assembly.
- While particular embodiments and applications of the present invention have been illustrated and described, it is to be understood that the invention is not limited to the precise construction and compositions disclosed herein and that various modifications, changes, and variations may be apparent from the foregoing descriptions without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (39)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/056,678 US20050189350A1 (en) | 2002-10-22 | 2005-02-11 | Container assemblies with releasable locking feature |
MX2007009605A MX2007009605A (en) | 2005-02-11 | 2005-05-25 | Container assemblies with releasable locking feature. |
PCT/US2005/018488 WO2006088479A1 (en) | 2005-02-11 | 2005-05-25 | Container assemblies with releasable locking feature |
CA002596671A CA2596671A1 (en) | 2005-02-11 | 2005-05-25 | Container assemblies with releasable locking feature |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/277,303 US6886704B2 (en) | 2002-10-22 | 2002-10-22 | Containers and container assemblies with releasable locking feature |
US11/056,678 US20050189350A1 (en) | 2002-10-22 | 2005-02-11 | Container assemblies with releasable locking feature |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/277,303 Continuation-In-Part US6886704B2 (en) | 2002-10-22 | 2002-10-22 | Containers and container assemblies with releasable locking feature |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050189350A1 true US20050189350A1 (en) | 2005-09-01 |
Family
ID=36916766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/056,678 Abandoned US20050189350A1 (en) | 2002-10-22 | 2005-02-11 | Container assemblies with releasable locking feature |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050189350A1 (en) |
CA (1) | CA2596671A1 (en) |
MX (1) | MX2007009605A (en) |
WO (1) | WO2006088479A1 (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006088633A2 (en) * | 2005-02-11 | 2006-08-24 | Pactiv Corporation | Self-contained merchandising container display |
US20070034624A1 (en) * | 2005-08-10 | 2007-02-15 | Chin-Fu Chiou | Compound container |
US20070075079A1 (en) * | 2005-10-05 | 2007-04-05 | Harlan Stokes | Flavored container lid |
US20110094918A1 (en) * | 2009-10-28 | 2011-04-28 | Pac International, Inc. | Food container |
WO2013143718A1 (en) * | 2012-03-30 | 2013-10-03 | Nestec S.A. | Packaging split in parts |
US20140220184A1 (en) * | 2013-02-04 | 2014-08-07 | Pepsico, Inc. | Cartridge for a Dispensing System |
USD850216S1 (en) * | 2018-09-25 | 2019-06-04 | Lee Richard Epley | Food bowl |
US20190256252A1 (en) * | 2018-02-20 | 2019-08-22 | Christopher Wayne Mundy | Plate attachment assembly |
USD861422S1 (en) | 2016-08-18 | 2019-10-01 | Zume, Inc. | Food container base |
USD866249S1 (en) | 2016-03-22 | 2019-11-12 | Zume, Inc. | Food container cover |
US10494155B2 (en) | 2015-06-16 | 2019-12-03 | Direct Pack, Inc. | Container assembly |
USD884486S1 (en) | 2018-07-12 | 2020-05-19 | Zume, Inc. | Food container |
US10654640B2 (en) | 2017-07-07 | 2020-05-19 | Zume, Inc. | Container for transport and storage of food products |
US10737867B2 (en) | 2016-03-22 | 2020-08-11 | Zume, Inc. | Container for transport and storage of food products |
USD893247S1 (en) | 2016-03-22 | 2020-08-18 | Zume, Inc. | Food container base |
USD900558S1 (en) | 2016-03-22 | 2020-11-03 | Zume, Inc. | Food container |
USD918712S1 (en) | 2019-02-11 | 2021-05-11 | Zume, Inc. | Food container |
US20220348399A1 (en) * | 2021-04-28 | 2022-11-03 | Tekni-Plex, Inc. | Egg carton with dual handles |
USD992963S1 (en) | 2019-08-15 | 2023-07-25 | Zume, Inc. | Lid for a food container |
USD1015816S1 (en) * | 2021-11-18 | 2024-02-27 | Pactiv LLC | Container |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8343560B2 (en) * | 2005-09-30 | 2013-01-01 | Reynolds Consumer Products Inc. | Modular container assembly and merchandizing container display |
Citations (95)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2260651A (en) * | 1939-03-06 | 1941-10-28 | Kimberly Stuart | Reinforced paper dish |
US2720332A (en) * | 1952-04-04 | 1955-10-11 | Danielson Mfg Company | Plastic hollow housing construction |
US2738915A (en) * | 1952-01-10 | 1956-03-20 | Continental Can Co | Molded service tray |
US2798631A (en) * | 1955-03-07 | 1957-07-09 | Engel David | Container |
US2986300A (en) * | 1959-10-12 | 1961-05-30 | Lockheed Aircraft Corp | Nestable shock damping container |
US2999611A (en) * | 1960-05-19 | 1961-09-12 | Thomas V Paulson | Two-part plastic container |
US3007602A (en) * | 1959-12-31 | 1961-11-07 | Micro Balancing Inc | Instrument cover means |
US3049259A (en) * | 1960-06-29 | 1962-08-14 | Mazzi Angelo | Cupped tray for holding fruits and the like |
US3459356A (en) * | 1967-11-29 | 1969-08-05 | George C Sparks | Confectionery package |
US3520440A (en) * | 1968-09-12 | 1970-07-14 | Continental Can Co | Container and closure therefor |
US3565146A (en) * | 1968-06-26 | 1971-02-23 | Kalle Ag | Reclosable receptacle |
US3572413A (en) * | 1969-06-19 | 1971-03-23 | Jay G Livingstone | Container and snap-on cover |
US3620403A (en) * | 1969-11-19 | 1971-11-16 | Monsanto Co | Plastic food container |
US3664538A (en) * | 1970-12-21 | 1972-05-23 | Donald W Fioretti | Nestable receptacle and container |
US3902540A (en) * | 1974-07-19 | 1975-09-02 | Mobil Oil Corp | Covered food container |
US3933295A (en) * | 1974-01-17 | 1976-01-20 | Dolco Packaging Corporation | Insulative packaging device |
US3938726A (en) * | 1974-06-20 | 1976-02-17 | Mobil Oil Corporation | Nesting insulated hot-or-cold food tray |
US3938727A (en) * | 1973-08-06 | 1976-02-17 | Duni Bila Ab | Disposable cardboard plates |
US3982651A (en) * | 1974-11-18 | 1976-09-28 | W. Braun Company | Container and closure cap therefor |
US4014450A (en) * | 1970-08-10 | 1977-03-29 | Montefibre S.P.A. | Packaging container |
US4114668A (en) * | 1975-12-04 | 1978-09-19 | Hickey Christopher Daniel Dowl | Containers having fluid-tight sealing means |
US4124141A (en) * | 1977-07-11 | 1978-11-07 | Armentrout James L | Sterile container |
US4149578A (en) * | 1976-12-01 | 1979-04-17 | Airflex Containers Limited | Containers having fluid-tight sealing means |
US4171062A (en) * | 1978-02-16 | 1979-10-16 | Buckeye Molding Company | Container having closure fastening means |
US4180179A (en) * | 1978-08-31 | 1979-12-25 | The Continental Group, Inc. | Beaded snaplock closure |
US4195746A (en) * | 1977-10-11 | 1980-04-01 | Cottrell Douglas J | Food container |
US4201301A (en) * | 1978-03-14 | 1980-05-06 | Giordano Aggio | Container for the transport or storage of food, particularly pizza |
US4201311A (en) * | 1978-06-21 | 1980-05-06 | Underwood J Larry | Container and lid of molded plastic material |
US4216763A (en) * | 1979-01-26 | 1980-08-12 | General Electric Company | Toaster/oven accessory pan with handle |
US4238047A (en) * | 1979-10-04 | 1980-12-09 | Container Corporation Of America | Composite closure member |
US4266689A (en) * | 1979-10-01 | 1981-05-12 | Phillips Petroleum Company | Closure for top inside roll container |
US4294371A (en) * | 1980-01-10 | 1981-10-13 | Sweetheart Plastics, Inc. | Sundae dish |
US4307817A (en) * | 1980-03-31 | 1981-12-29 | George Cotroneo | Lid and container combination |
US4334631A (en) * | 1980-11-24 | 1982-06-15 | Ballester Jose F | Cover and container assembly |
US4350263A (en) * | 1980-09-19 | 1982-09-21 | H. P. Hood, Inc. | Package having sealed closing means |
US4360118A (en) * | 1980-11-17 | 1982-11-23 | Stern James J | Self-mating pizza pie container |
US4362265A (en) * | 1981-05-01 | 1982-12-07 | Champion International Corporation | Container |
US4378895A (en) * | 1981-01-27 | 1983-04-05 | Innovative Design Company Pty. Limited | Container-closure arrangement |
US4388998A (en) * | 1981-09-14 | 1983-06-21 | J. Larry Underwood | Lid and container with improved fastening and sealing means |
US4394922A (en) * | 1980-03-03 | 1983-07-26 | The West Company | Rubber stopper with plastic pull ring |
US4397404A (en) * | 1981-09-28 | 1983-08-09 | Plastican, Incorporated | Plastic containers and covers |
US4446986A (en) * | 1982-08-02 | 1984-05-08 | Genpak Corporation | Fluid tight container and closure assembly |
US4457432A (en) * | 1982-04-19 | 1984-07-03 | Solheim Allan D | Interlocking stackable tray |
US4458825A (en) * | 1982-04-22 | 1984-07-10 | Julien Holota | Plastic container and closure assembly |
US4487326A (en) * | 1983-11-10 | 1984-12-11 | Owens-Illinois, Inc. | Carbonated beverage package |
US4520943A (en) * | 1983-07-28 | 1985-06-04 | Nielsen Jens O | Reclosable plastic container |
US4524882A (en) * | 1983-06-20 | 1985-06-25 | Buc John L | Molded container and closure |
US4555043A (en) * | 1984-11-29 | 1985-11-26 | Daniel Bernhardt | Anti-spill recloseable container |
US4664254A (en) * | 1984-06-06 | 1987-05-12 | Sitwell Christine L | Shipping container for works of art |
US4741434A (en) * | 1987-06-15 | 1988-05-03 | Herman Liebman | Key holder with attached condom case |
US4765500A (en) * | 1987-10-29 | 1988-08-23 | Ingram Margaret A | Container made from identical halves |
US4811550A (en) * | 1986-07-02 | 1989-03-14 | Erca Holding | Method and device for manufacturing and positioning upon a container an undercut thermoplastic lid, and container provided with such a lid |
US4819824A (en) * | 1987-02-25 | 1989-04-11 | Barker, Brettell & Duncan | Lidded containers |
US4838444A (en) * | 1987-12-29 | 1989-06-13 | The Rogers Manufacturing Company | Food service tray and assembly thereof |
US4854472A (en) * | 1988-06-10 | 1989-08-08 | Plastic Technologies, Inc. | Tamper resistant wide mouth package with dynamic seal |
US4856707A (en) * | 1988-08-08 | 1989-08-15 | Macmillan Bloedel Containers | Container for food products |
US4878595A (en) * | 1988-06-09 | 1989-11-07 | Plastic Technologies, Inc. | Tamper resistant wide mouth package with labyrinth seal |
US4890740A (en) * | 1988-10-25 | 1990-01-02 | Buckhorn, Inc. | Snap together picking container |
US4930636A (en) * | 1989-07-19 | 1990-06-05 | Meadows Marcia A | Stackable container assembly |
US4971774A (en) * | 1987-04-03 | 1990-11-20 | Aesculap Ag | Sterilizing container for surgical instruments |
US4974738A (en) * | 1989-07-10 | 1990-12-04 | Packaging Corporation Of America | Container with interchangeable components |
US5036980A (en) * | 1990-05-17 | 1991-08-06 | Keyes Fibre | Nestable food container having improved closure system |
US5042674A (en) * | 1988-02-25 | 1991-08-27 | Rent A Boxx Moving Systems Inc. | Moving and storage container |
US5060851A (en) * | 1988-09-26 | 1991-10-29 | Macmillan Bloedel Containers | Interlocking container for carry-out food products |
US5069354A (en) * | 1990-04-19 | 1991-12-03 | Delvo Industries, Inc. | Openable/closeable container including a frame for supporting a pair of tray members |
US5097977A (en) * | 1991-02-27 | 1992-03-24 | Roy Straub | Closure assembly for container |
US5161711A (en) * | 1991-03-28 | 1992-11-10 | Dart Industries Inc. | Closure assembly with separable seal |
US5170905A (en) * | 1991-07-17 | 1992-12-15 | Cap Snap Co. | Tamper-evident thin-walled container package |
US5181626A (en) * | 1991-03-28 | 1993-01-26 | Dart Industries, Inc. | Closure assembly for containers |
US5265749A (en) * | 1993-04-01 | 1993-11-30 | Marketing Congress, Inc. | Container |
US5273174A (en) * | 1992-08-10 | 1993-12-28 | Fisher Ronald F | Pizza container |
US5303839A (en) * | 1991-11-27 | 1994-04-19 | Jokey Plastik Wipperfurth Gmbh | Plastic container with lid |
US5310070A (en) * | 1991-10-01 | 1994-05-10 | Franz Haas Waffelmaschinen Industriegesellschaft M.B.H. | Container of readily biodegradable material |
US5332114A (en) * | 1992-03-17 | 1994-07-26 | Jatco Corporation | Container |
US5356023A (en) * | 1993-11-04 | 1994-10-18 | Ultra Pac, Inc. | Rose box with interchangeable lid and base |
US5377860A (en) * | 1993-09-14 | 1995-01-03 | James River Corporation Of Virginia | Double seal food container |
US5379934A (en) * | 1994-02-07 | 1995-01-10 | Macmillan Bloedel Limited | Closable tray |
US5390807A (en) * | 1992-11-25 | 1995-02-21 | Galaburda; Nuno C. | Container for photographic film |
US5437386A (en) * | 1993-08-11 | 1995-08-01 | Von Holdt; John W. | Container with tamper-evident lid removal means |
US5437388A (en) * | 1994-12-05 | 1995-08-01 | Macmillan Bloedel Packaging, Inc. | Container |
US5605231A (en) * | 1994-07-18 | 1997-02-25 | The Green Partnership Inc. | Food delivery container |
US5634559A (en) * | 1995-07-27 | 1997-06-03 | Plastofilm Industries, Inc. | Package tray having reversible nesting and enclosing fastening feature |
US5666875A (en) * | 1996-05-20 | 1997-09-16 | W & C Investments | Double roasting pan |
US5785203A (en) * | 1993-11-11 | 1998-07-28 | Industrial Containers Ltd. | Tamper-evident container with integrally molded handle |
US5875918A (en) * | 1997-02-20 | 1999-03-02 | Charles Chang | Hermetically-sealed container and closure construction |
US5979687A (en) * | 1998-07-10 | 1999-11-09 | Tenneco Packaging Inc. | High-strength container with interior button latch |
US5992679A (en) * | 1998-06-25 | 1999-11-30 | S. C. Johnson Home Storage, Inc. | Container Having a selectively detachable lid including an interrupted reinforcing bead |
US6021917A (en) * | 1996-03-07 | 2000-02-08 | Industrial Containers Ltd. | Pail and plastic lid comprising non-linear, flexible ribs |
US6029803A (en) * | 1999-01-14 | 2000-02-29 | Ovadia Corp. | Display and storage box with interlocking, friction fitting halves |
US6193090B1 (en) * | 1999-04-06 | 2001-02-27 | 3M Innovative Properties Company | Reusable container |
US6250494B1 (en) * | 1999-03-30 | 2001-06-26 | John Clementi | Plastic containers with interlocking lids |
US6260723B1 (en) * | 1996-11-02 | 2001-07-17 | Tetra-Laval Holdings & Finance | Package for flowable media having a snap lid and preform for making same |
US20020175164A1 (en) * | 2001-05-25 | 2002-11-28 | Dees Jerome G. | Food container with interchangeable lid - base seal design |
US6491185B1 (en) * | 1999-11-15 | 2002-12-10 | United States Can Company | Molded container including plug with multiple locking arms |
US20030057207A1 (en) * | 2001-05-15 | 2003-03-27 | Wong Nancy M. | Container with food seals |
-
2005
- 2005-02-11 US US11/056,678 patent/US20050189350A1/en not_active Abandoned
- 2005-05-25 MX MX2007009605A patent/MX2007009605A/en unknown
- 2005-05-25 WO PCT/US2005/018488 patent/WO2006088479A1/en active Application Filing
- 2005-05-25 CA CA002596671A patent/CA2596671A1/en not_active Abandoned
Patent Citations (96)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2260651A (en) * | 1939-03-06 | 1941-10-28 | Kimberly Stuart | Reinforced paper dish |
US2738915A (en) * | 1952-01-10 | 1956-03-20 | Continental Can Co | Molded service tray |
US2720332A (en) * | 1952-04-04 | 1955-10-11 | Danielson Mfg Company | Plastic hollow housing construction |
US2798631A (en) * | 1955-03-07 | 1957-07-09 | Engel David | Container |
US2986300A (en) * | 1959-10-12 | 1961-05-30 | Lockheed Aircraft Corp | Nestable shock damping container |
US3007602A (en) * | 1959-12-31 | 1961-11-07 | Micro Balancing Inc | Instrument cover means |
US2999611A (en) * | 1960-05-19 | 1961-09-12 | Thomas V Paulson | Two-part plastic container |
US3049259A (en) * | 1960-06-29 | 1962-08-14 | Mazzi Angelo | Cupped tray for holding fruits and the like |
US3459356A (en) * | 1967-11-29 | 1969-08-05 | George C Sparks | Confectionery package |
US3565146A (en) * | 1968-06-26 | 1971-02-23 | Kalle Ag | Reclosable receptacle |
US3520440A (en) * | 1968-09-12 | 1970-07-14 | Continental Can Co | Container and closure therefor |
US3572413A (en) * | 1969-06-19 | 1971-03-23 | Jay G Livingstone | Container and snap-on cover |
US3620403A (en) * | 1969-11-19 | 1971-11-16 | Monsanto Co | Plastic food container |
US4014450A (en) * | 1970-08-10 | 1977-03-29 | Montefibre S.P.A. | Packaging container |
US3664538A (en) * | 1970-12-21 | 1972-05-23 | Donald W Fioretti | Nestable receptacle and container |
US3938727A (en) * | 1973-08-06 | 1976-02-17 | Duni Bila Ab | Disposable cardboard plates |
US3933295A (en) * | 1974-01-17 | 1976-01-20 | Dolco Packaging Corporation | Insulative packaging device |
US3938726A (en) * | 1974-06-20 | 1976-02-17 | Mobil Oil Corporation | Nesting insulated hot-or-cold food tray |
US3902540A (en) * | 1974-07-19 | 1975-09-02 | Mobil Oil Corp | Covered food container |
US3982651A (en) * | 1974-11-18 | 1976-09-28 | W. Braun Company | Container and closure cap therefor |
US4114668A (en) * | 1975-12-04 | 1978-09-19 | Hickey Christopher Daniel Dowl | Containers having fluid-tight sealing means |
US4149578A (en) * | 1976-12-01 | 1979-04-17 | Airflex Containers Limited | Containers having fluid-tight sealing means |
US4124141A (en) * | 1977-07-11 | 1978-11-07 | Armentrout James L | Sterile container |
US4195746A (en) * | 1977-10-11 | 1980-04-01 | Cottrell Douglas J | Food container |
US4171062A (en) * | 1978-02-16 | 1979-10-16 | Buckeye Molding Company | Container having closure fastening means |
US4201301A (en) * | 1978-03-14 | 1980-05-06 | Giordano Aggio | Container for the transport or storage of food, particularly pizza |
US4201311A (en) * | 1978-06-21 | 1980-05-06 | Underwood J Larry | Container and lid of molded plastic material |
US4180179A (en) * | 1978-08-31 | 1979-12-25 | The Continental Group, Inc. | Beaded snaplock closure |
US4216763A (en) * | 1979-01-26 | 1980-08-12 | General Electric Company | Toaster/oven accessory pan with handle |
US4266689A (en) * | 1979-10-01 | 1981-05-12 | Phillips Petroleum Company | Closure for top inside roll container |
US4238047A (en) * | 1979-10-04 | 1980-12-09 | Container Corporation Of America | Composite closure member |
US4294371A (en) * | 1980-01-10 | 1981-10-13 | Sweetheart Plastics, Inc. | Sundae dish |
US4394922A (en) * | 1980-03-03 | 1983-07-26 | The West Company | Rubber stopper with plastic pull ring |
US4307817A (en) * | 1980-03-31 | 1981-12-29 | George Cotroneo | Lid and container combination |
US4350263A (en) * | 1980-09-19 | 1982-09-21 | H. P. Hood, Inc. | Package having sealed closing means |
US4360118A (en) * | 1980-11-17 | 1982-11-23 | Stern James J | Self-mating pizza pie container |
US4334631A (en) * | 1980-11-24 | 1982-06-15 | Ballester Jose F | Cover and container assembly |
US4378895A (en) * | 1981-01-27 | 1983-04-05 | Innovative Design Company Pty. Limited | Container-closure arrangement |
US4362265A (en) * | 1981-05-01 | 1982-12-07 | Champion International Corporation | Container |
US4388998A (en) * | 1981-09-14 | 1983-06-21 | J. Larry Underwood | Lid and container with improved fastening and sealing means |
US4397404A (en) * | 1981-09-28 | 1983-08-09 | Plastican, Incorporated | Plastic containers and covers |
US4457432A (en) * | 1982-04-19 | 1984-07-03 | Solheim Allan D | Interlocking stackable tray |
US4458825A (en) * | 1982-04-22 | 1984-07-10 | Julien Holota | Plastic container and closure assembly |
US4446986A (en) * | 1982-08-02 | 1984-05-08 | Genpak Corporation | Fluid tight container and closure assembly |
US4524882A (en) * | 1983-06-20 | 1985-06-25 | Buc John L | Molded container and closure |
US4520943A (en) * | 1983-07-28 | 1985-06-04 | Nielsen Jens O | Reclosable plastic container |
US4487326A (en) * | 1983-11-10 | 1984-12-11 | Owens-Illinois, Inc. | Carbonated beverage package |
US4664254A (en) * | 1984-06-06 | 1987-05-12 | Sitwell Christine L | Shipping container for works of art |
US4555043A (en) * | 1984-11-29 | 1985-11-26 | Daniel Bernhardt | Anti-spill recloseable container |
US4811550A (en) * | 1986-07-02 | 1989-03-14 | Erca Holding | Method and device for manufacturing and positioning upon a container an undercut thermoplastic lid, and container provided with such a lid |
US4819824A (en) * | 1987-02-25 | 1989-04-11 | Barker, Brettell & Duncan | Lidded containers |
US4971774A (en) * | 1987-04-03 | 1990-11-20 | Aesculap Ag | Sterilizing container for surgical instruments |
US4741434A (en) * | 1987-06-15 | 1988-05-03 | Herman Liebman | Key holder with attached condom case |
US4765500A (en) * | 1987-10-29 | 1988-08-23 | Ingram Margaret A | Container made from identical halves |
US4838444A (en) * | 1987-12-29 | 1989-06-13 | The Rogers Manufacturing Company | Food service tray and assembly thereof |
US5042674A (en) * | 1988-02-25 | 1991-08-27 | Rent A Boxx Moving Systems Inc. | Moving and storage container |
US4878595A (en) * | 1988-06-09 | 1989-11-07 | Plastic Technologies, Inc. | Tamper resistant wide mouth package with labyrinth seal |
US4854472A (en) * | 1988-06-10 | 1989-08-08 | Plastic Technologies, Inc. | Tamper resistant wide mouth package with dynamic seal |
US4856707A (en) * | 1988-08-08 | 1989-08-15 | Macmillan Bloedel Containers | Container for food products |
US5060851A (en) * | 1988-09-26 | 1991-10-29 | Macmillan Bloedel Containers | Interlocking container for carry-out food products |
US4890740A (en) * | 1988-10-25 | 1990-01-02 | Buckhorn, Inc. | Snap together picking container |
US4974738A (en) * | 1989-07-10 | 1990-12-04 | Packaging Corporation Of America | Container with interchangeable components |
US4930636A (en) * | 1989-07-19 | 1990-06-05 | Meadows Marcia A | Stackable container assembly |
US5069354A (en) * | 1990-04-19 | 1991-12-03 | Delvo Industries, Inc. | Openable/closeable container including a frame for supporting a pair of tray members |
US5036980A (en) * | 1990-05-17 | 1991-08-06 | Keyes Fibre | Nestable food container having improved closure system |
US5097977A (en) * | 1991-02-27 | 1992-03-24 | Roy Straub | Closure assembly for container |
US5161711A (en) * | 1991-03-28 | 1992-11-10 | Dart Industries Inc. | Closure assembly with separable seal |
US5181626A (en) * | 1991-03-28 | 1993-01-26 | Dart Industries, Inc. | Closure assembly for containers |
US5170905A (en) * | 1991-07-17 | 1992-12-15 | Cap Snap Co. | Tamper-evident thin-walled container package |
US5310070A (en) * | 1991-10-01 | 1994-05-10 | Franz Haas Waffelmaschinen Industriegesellschaft M.B.H. | Container of readily biodegradable material |
US5303839A (en) * | 1991-11-27 | 1994-04-19 | Jokey Plastik Wipperfurth Gmbh | Plastic container with lid |
US5332114A (en) * | 1992-03-17 | 1994-07-26 | Jatco Corporation | Container |
US5273174A (en) * | 1992-08-10 | 1993-12-28 | Fisher Ronald F | Pizza container |
US5390807A (en) * | 1992-11-25 | 1995-02-21 | Galaburda; Nuno C. | Container for photographic film |
US5265749A (en) * | 1993-04-01 | 1993-11-30 | Marketing Congress, Inc. | Container |
US5388714A (en) * | 1993-04-01 | 1995-02-14 | Marketing Congress, Inc. | Container |
US5437386A (en) * | 1993-08-11 | 1995-08-01 | Von Holdt; John W. | Container with tamper-evident lid removal means |
US5377860A (en) * | 1993-09-14 | 1995-01-03 | James River Corporation Of Virginia | Double seal food container |
US5356023A (en) * | 1993-11-04 | 1994-10-18 | Ultra Pac, Inc. | Rose box with interchangeable lid and base |
US5785203A (en) * | 1993-11-11 | 1998-07-28 | Industrial Containers Ltd. | Tamper-evident container with integrally molded handle |
US5379934A (en) * | 1994-02-07 | 1995-01-10 | Macmillan Bloedel Limited | Closable tray |
US5605231A (en) * | 1994-07-18 | 1997-02-25 | The Green Partnership Inc. | Food delivery container |
US5437388A (en) * | 1994-12-05 | 1995-08-01 | Macmillan Bloedel Packaging, Inc. | Container |
US5634559A (en) * | 1995-07-27 | 1997-06-03 | Plastofilm Industries, Inc. | Package tray having reversible nesting and enclosing fastening feature |
US6021917A (en) * | 1996-03-07 | 2000-02-08 | Industrial Containers Ltd. | Pail and plastic lid comprising non-linear, flexible ribs |
US5666875A (en) * | 1996-05-20 | 1997-09-16 | W & C Investments | Double roasting pan |
US6260723B1 (en) * | 1996-11-02 | 2001-07-17 | Tetra-Laval Holdings & Finance | Package for flowable media having a snap lid and preform for making same |
US5875918A (en) * | 1997-02-20 | 1999-03-02 | Charles Chang | Hermetically-sealed container and closure construction |
US5992679A (en) * | 1998-06-25 | 1999-11-30 | S. C. Johnson Home Storage, Inc. | Container Having a selectively detachable lid including an interrupted reinforcing bead |
US5979687A (en) * | 1998-07-10 | 1999-11-09 | Tenneco Packaging Inc. | High-strength container with interior button latch |
US6029803A (en) * | 1999-01-14 | 2000-02-29 | Ovadia Corp. | Display and storage box with interlocking, friction fitting halves |
US6250494B1 (en) * | 1999-03-30 | 2001-06-26 | John Clementi | Plastic containers with interlocking lids |
US6193090B1 (en) * | 1999-04-06 | 2001-02-27 | 3M Innovative Properties Company | Reusable container |
US6491185B1 (en) * | 1999-11-15 | 2002-12-10 | United States Can Company | Molded container including plug with multiple locking arms |
US20030057207A1 (en) * | 2001-05-15 | 2003-03-27 | Wong Nancy M. | Container with food seals |
US20020175164A1 (en) * | 2001-05-25 | 2002-11-28 | Dees Jerome G. | Food container with interchangeable lid - base seal design |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006088633A2 (en) * | 2005-02-11 | 2006-08-24 | Pactiv Corporation | Self-contained merchandising container display |
WO2006088633A3 (en) * | 2005-02-11 | 2006-11-30 | Pactiv Corp | Self-contained merchandising container display |
US20070034624A1 (en) * | 2005-08-10 | 2007-02-15 | Chin-Fu Chiou | Compound container |
US20070075079A1 (en) * | 2005-10-05 | 2007-04-05 | Harlan Stokes | Flavored container lid |
US20110094918A1 (en) * | 2009-10-28 | 2011-04-28 | Pac International, Inc. | Food container |
US8584881B2 (en) | 2009-10-28 | 2013-11-19 | Pac International, Inc. | Food container |
WO2013143718A1 (en) * | 2012-03-30 | 2013-10-03 | Nestec S.A. | Packaging split in parts |
US9573726B2 (en) | 2012-03-30 | 2017-02-21 | Nestec S.A. | Packaging split in parts |
US20140220184A1 (en) * | 2013-02-04 | 2014-08-07 | Pepsico, Inc. | Cartridge for a Dispensing System |
US9126738B2 (en) * | 2013-02-04 | 2015-09-08 | Pepsico, Inc. | Cartridge for a dispensing system |
US9527715B2 (en) | 2013-02-04 | 2016-12-27 | Pepsico, Inc. | Cartridge for a dispensing system |
US10494155B2 (en) | 2015-06-16 | 2019-12-03 | Direct Pack, Inc. | Container assembly |
US10994898B2 (en) | 2015-06-16 | 2021-05-04 | Direct Pack, Inc. | Container assembly |
US10723521B2 (en) | 2015-06-16 | 2020-07-28 | Direct Pack, Inc. | Container assembly |
USD866249S1 (en) | 2016-03-22 | 2019-11-12 | Zume, Inc. | Food container cover |
USD962059S1 (en) | 2016-03-22 | 2022-08-30 | Zume, Inc. | Food container cover |
USD900558S1 (en) | 2016-03-22 | 2020-11-03 | Zume, Inc. | Food container |
USD893247S1 (en) | 2016-03-22 | 2020-08-18 | Zume, Inc. | Food container base |
US10737867B2 (en) | 2016-03-22 | 2020-08-11 | Zume, Inc. | Container for transport and storage of food products |
USD892540S1 (en) | 2016-08-18 | 2020-08-11 | Zume, Inc. | Food container base |
USD861422S1 (en) | 2016-08-18 | 2019-10-01 | Zume, Inc. | Food container base |
US10654640B2 (en) | 2017-07-07 | 2020-05-19 | Zume, Inc. | Container for transport and storage of food products |
US11292635B2 (en) | 2018-02-20 | 2022-04-05 | Christopher Wayne Mundy | Plate attachment assembly |
US20190256252A1 (en) * | 2018-02-20 | 2019-08-22 | Christopher Wayne Mundy | Plate attachment assembly |
US10486856B2 (en) * | 2018-02-20 | 2019-11-26 | Christopher Wayne Mundy | Plate attachment assembly |
USD892633S1 (en) | 2018-07-12 | 2020-08-11 | Zume, Inc. | Food container |
USD884486S1 (en) | 2018-07-12 | 2020-05-19 | Zume, Inc. | Food container |
USD850216S1 (en) * | 2018-09-25 | 2019-06-04 | Lee Richard Epley | Food bowl |
USD918712S1 (en) | 2019-02-11 | 2021-05-11 | Zume, Inc. | Food container |
USD1015144S1 (en) | 2019-02-11 | 2024-02-20 | Congruens Group, Llc | Food container base |
USD992963S1 (en) | 2019-08-15 | 2023-07-25 | Zume, Inc. | Lid for a food container |
US20220348399A1 (en) * | 2021-04-28 | 2022-11-03 | Tekni-Plex, Inc. | Egg carton with dual handles |
US11884478B2 (en) * | 2021-04-28 | 2024-01-30 | Tekni-Plex, Inc. | Egg carton with dual handles |
USD1015816S1 (en) * | 2021-11-18 | 2024-02-27 | Pactiv LLC | Container |
Also Published As
Publication number | Publication date |
---|---|
WO2006088479A1 (en) | 2006-08-24 |
CA2596671A1 (en) | 2006-08-24 |
MX2007009605A (en) | 2007-09-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6886704B2 (en) | Containers and container assemblies with releasable locking feature | |
US20050189350A1 (en) | Container assemblies with releasable locking feature | |
US8343560B2 (en) | Modular container assembly and merchandizing container display | |
US7798353B2 (en) | Polymeric container assembly with stackable features | |
US7832586B2 (en) | Multi-compartment container system | |
US7124910B2 (en) | Leak-resistant polymeric foam containers | |
CA2127311C (en) | Double seal food container | |
US20120138608A1 (en) | Storage device having an articulated cover fitting inner and outer containers | |
US20070119743A1 (en) | Container | |
US20070023428A1 (en) | Container assemblies with releasable locking feature | |
US20060159807A1 (en) | Container assemblies with releasable locking feature | |
US20060000076A1 (en) | Method of using a container assembly | |
CA2580866C (en) | Container and lid assembly, in particular for food products | |
US20070164019A1 (en) | Containers and interlocking container assemblies | |
WO2006104786A1 (en) | Container assemblies with releasable locking feature | |
US20060175326A1 (en) | Polymeric containers and container assemblies with cohesive | |
MX2007012049A (en) | Container assemblies with releasable locking feature. | |
US20060180490A1 (en) | Self-contained merchandising container display | |
CN101360656A (en) | Polymeric container assembly with stackable features |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: PACTIV CORPORATION, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HAYES, THOMAS J.;BROWN, SCOTT D.;KIRKLAND, H. BERNARD;REEL/FRAME:016566/0298;SIGNING DATES FROM 20050426 TO 20050429 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: THE BANK OF NEW YORK MELLON, AS COLLATERAL AGENT, Free format text: SECURITY AGREEMENT;ASSIGNORS:PACTIV CORPORATION;NEWSPRING INDUSTRIAL CORP.;PRAIRIE PACKAGING, INC.;AND OTHERS;REEL/FRAME:025712/0153 Effective date: 20110112 |