US20110017741A1 - Container closure - Google Patents
Container closure Download PDFInfo
- Publication number
- US20110017741A1 US20110017741A1 US12/835,014 US83501410A US2011017741A1 US 20110017741 A1 US20110017741 A1 US 20110017741A1 US 83501410 A US83501410 A US 83501410A US 2011017741 A1 US2011017741 A1 US 2011017741A1
- Authority
- US
- United States
- Prior art keywords
- tubular wall
- wall
- closure
- top wall
- interior surface
- 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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
- B65D41/045—Discs
Abstract
A closure for a container having a top wall, a first tubular wall with a radial exterior surface and a radial interior surface, and a second tubular wall with a radial exterior surface and a radial interior surface. The first tubular wall extends generally transversely downwardly from a peripheral edge of the top wall and the second tubular wall extends generally transversely downwardly from an interior surface of the top wall radially inwardly from the first tubular wall to establish an unobstructed void between the interior surface of the first tubular wall and the exterior surface of the second tubular wall. The interior surface of the second tubular wall has first screw threads configured to removably engage second screw threads formed on the container.
Description
- This application claims the benefit of U.S. Provisional Patent Application No. 61/227,286, filed on Jul. 21, 2009, entitled “Container Closure,” the entire contents of which are incorporated by reference herein.
- Conventional safety closures for medicament containers have a double wall, double shell configuration. These conventional closures have certain dimensions that are adaptable with existing machinery for manufacturing and packaging such closures. A multiplicity of so-called easy-to-open closure mechanisms, with a double wall and double shell configuration, have also been developed and marketed in the past. Such easy-to-open closures mechanisms have been on the market for many years and are well accepted container closure designs. In essence, they are merely design modifications of conventional safety closures. In other words, these known easy-to-open closures are assembled in the same manner as conventional double wall, double shell safety closures, without a safety mechanism or with the safety mechanism disabled, such that the existing machinery for manufacturing and packaging conventional safety closures may be used.
- For example, conventional safety closures include an assembly of first and second caps which rotate freely relative to each other, such that the safety closure cannot be removed from a container unless the first cap is pressed down upon or squeezed in from the sides, and brought into engagement with the second cap. In many of the known easy-to-open closures, the safety mechanisms are merely non-existent or disabled and the first and second caps are permanently secured to each other, such that the first and second caps are incapable of rotating freely relative to each other. Thus, when the first cap is rotated by a user, the second cap is correspondingly rotated, allowing the closure to be unscrewed from a container without the application of any force upon the first cap.
- Such known easy-to-open closures are often bulky and expensive to manufacture, as they require a certain degree of assembly to disable the safety mechanism and to secure the first and second caps to each other. In particular, securing of the first and second caps together is often a troublesome aspect of the assembly of these prior art closures. The first and second caps must be secured together in a very sensitive manner to ensure that there is a strong bond between the two caps. If such a strong bond is not achieved, the bond can break, the first and second caps will no longer be secured to each other, and the closure is no longer operable. Thus, ensuring that a sufficient bond is achieved between the first and second caps is always a manufacturing concern for the prior art closures.
- Further, a single-wall closure is not a feasible alternative to these prior art double wall closures. The single tubular sidewall of a single-wall closure would have to be of a significant thickness to efficiently serve as a container closure. However, during formation of the single-wall closure by, for example, injection molding, the level of sink associated with formation of the sidewall becomes problematic, as sink marks or voids can occur in the thick molding of the sidewall.
- Thus, it is desirable to provide an integral easy-to-open double wall closure adaptable for use with a variety of containers. Eliminating the need for the assembly steps required to secure a first cap to a second cap and to ensure a sufficient bond between the two pieces results in an integral double wall closure which is readily and inexpensively manufactured.
- Briefly stated, the present invention is directed to a closure for a container. The closure includes a top wall with a peripheral edge, an exterior surface and an interior surface; a first tubular wall with a radial exterior surface and a radial interior surface; and a second tubular wall with a radial exterior surface and a radial interior surface. The first tubular wall extends generally transversely downwardly from the peripheral edge of the top wall and the second tubular wall extends generally transversely downwardly from the interior surface of the top wall radially inwardly from the first tubular wall to establish an unobstructed void between the interior surface of the first tubular wall and the exterior surface of the second tubular wall below the interior surface of the top wall. The interior surface of the second tubular wall has first screw threads configured to removably engage second screw threads formed on the container. Rotating the closure in a first direction, when viewing the top wall, without applying a force to the exterior surface of the top wall or to the exterior surface of the first tubular wall causes the first screw threads of the second tubular wall to disengage from the second screw threads of the container.
- In another embodiment, the present invention is directed to a method of manufacturing a container closure having a top wall, a first tubular wall integrally formed with the top wall and extending generally transversely downwardly from a peripheral edge of the top wall, and a second integrally formed tubular wall integrally formed with the top wall and extending generally transversely downwardly from an interior surface of the top wall radially inwardly from the first tubular wall to establish an unobstructed void between the first tubular wall and the second tubular wall. The method includes the steps of providing a single open mold, injecting a polymeric material into the single mold, allowing the polymeric material to cool until substantially solidified, and removing the single mold.
- The following detailed description of the preferred embodiment of the present invention will be better understood when read in conjunction with the appended drawings. For the purposes of illustrating the invention, there are shown in the drawings an embodiment which is presently preferred. It is understood, however, that the invention is not limited to the precise arrangements and instrumentalities shown. In the drawings:
-
FIG. 1 is a top perspective view of a container closure in accordance with a preferred embodiment of the present invention; -
FIG. 2 is a side elevational view of the container closure shown inFIG. 1 ; -
FIG. 3 is a bottom perspective view of the container closure shown inFIG. 1 ; -
FIG. 4 is bottom plan view of the container closure shown inFIG. 1 ; -
FIG. 5 is a top plan view of the container closure shown inFIG. 1 ; -
FIG. 5A is a cross-sectional view of the container closure shown inFIG. 5 taken along line 5A-5A inFIG. 5 ; -
FIG. 5B is a greatly enlarged cross-sectional view of the container closure shown inFIG. 5A taken aboutarea 5B inFIG. 5A ; -
FIG. 5C is a greatly enlarged cross-sectional view of the container closure shown inFIG. 5A taken aboutarea 5C inFIG. 5A ; and -
FIG. 5D is a greatly enlarged cross-sectional view of the container closure shown inFIG. 5A taken aboutarea 5D inFIG. 5A . - Certain terminology is used in the following description for convenience only and is not limiting. The words “right”, “left”, “lower” and “upper” designate directions in the drawings to which reference is made. The words “inwardly” and “outwardly” refer to directions toward and away from, respectively, the geometric center of the container closure and designated parts thereof. Unless specifically set forth herein, the terms “a”, “an” and “the” are not limited to one element but instead should be read as meaning “at least one”. The terminology includes the words noted above, derivatives thereof and words of similar import.
- Referring to the drawings in detail, wherein like numerals and characters indicate like elements throughout, there are shown in
FIGS. 1-5D a presently preferred embodiment of a container closure in accordance with the present invention. With reference initially toFIGS. 1-4 , the container closure is generally designated 10. - With particular reference to
FIGS. 1-5 , thecontainer closure 10 includes atop wall 12 with a peripheral or radiallyouter edge 12 a, an exterior orupper surface 12 b, and an interior orlower surface 12 c. Theinterior surface 12 c of thetop wall 12 includes a plurality ofconcentric ribs 13 which are spaced apart from each other and which extend generally transversely downwardly from theinterior surface 12 c of thetop wall 12. Preferably, theinterior surface 12 c includes at least threeconcentric ribs concentric ribs rib peripheral edge 12 a of thetop wall 12. Acylindrical protrusion 11 extends downwardly from theinterior surface 12 c of thetop wall 12, toward an interior 20 of thecontainer closure 10, at a central longitudinal axis 10 a of theclosure 10, generally, and of thetop wall 12, in particular (seeFIG. 4 ). In the ready-to-use state, the portion of theinterior surface 12 c of thetop wall 12 comprising the concentriccircular ribs cylindrical protrusion 11 is covered with a removable disk (not shown) made of, for example, paper or cardboard, for sealing the top of a container on which theclosure 10 is used. - Referring to
FIGS. 1-3 , a skirt or firsttubular wall 14 extends generally transversely downwardly from theperipheral edge 12 a of thetop wall 12. The firsttubular wall 14 has a radial outer orexterior surface 14 a and a radialinterior surface 14 b. The firsttubular wall 14 is generally flexible, such that application of a force on theexterior surface 14 a of the firsttubular wall 14 will cause an unattacheddistal end 14 c of the firsttubular wall 14 to be deflected radially inwardly toward the interior 20 of thecontainer closure 10. However, it will be appreciated by those skilled in the art that the firsttubular wall 14 may be rigid, as flexibility of the firsttubular wall 14 is not a necessary component for thecontainer closure 10 to function. - Referring to
FIG. 2 , theexterior surface 14 a of the firsttubular wall 14 comprises a plurality of grippingmembers 15 for ease of handling of thecontainer closure 10 by a user. The plurality of grippingmembers 15 protrude from theexterior surface 14 a of the firsttubular wall 14. Preferably, the plurality of grippingmembers 15 are a plurality ofelongated ribs 15 that extend generally downwardly from proximate theperipheral edge 12 a of thetop wall 12 toward thedistal end 14 of the firsttubular wall 14. The plurality of grippingmembers 15 provide traction for a user, such that the user is able to get a firm grip on thecontainer closure 10 when attempting to remove it from or install it onto a container (not shown). However, it will be understood by those skilled in the art that theexterior surface 14 a of the firsttubular wall 14 may alternatively be a continuously smooth surface. - Referring to
FIGS. 3-4 , a secondtubular wall 16 extends generally transversely downwardly from theinterior surface 12 c of thetop wall 12. The secondtubular wall 16 extends downwardly from theinterior surface 12 c of thetop wall 12 radially inwardly from the firsttubular wall 14 and radially outwardly from the outermostconcentric rib 13 c, such that the secondtubular wall 16 is situated at a position between the outermost concentriccircular rib 13 c and the firsttubular wall 14. The secondtubular wall 16 may be flexible or rigid. Preferably, the secondtubular wall 16 is rigid. With particular reference toFIGS. 3-5 , the secondtubular wall 16 has a radial outer orexterior surface 16 a and a radialinterior surface 16 b. The radialinterior surface 16 b of the secondtubular wall 16 includesfirst screw threads 18 which are matched with second corresponding screw threads formed on the container with which thecontainer closure 10 may be used. Thus, thefirst screw threads 18 of thecontainer closure 10 are configured to removably engage the second screw threads of the container with which thecontainer closure 10 is used. - A gap or
unobstructed void 17 is established between theinterior surface 14 b of the firsttubular wall 14 and theexterior surface 16 a of the secondtubular wall 16 below theinterior surface 12 c of thetop wall 12. The void 17 is free of any protrusions, such as lugs or interlocks. The firsttubular wall 14 and the secondtubular wall 16 are formed as integral components of thecontainer closure 10 and, therefore, there is no need for any mechanism to secure either component to theclosure 10 or to each other. Specifically, the first and secondtubular walls top wall 12 of thecontainer closure 10, thereby forming a doublewall container closure 10 having a single-body construction. Thus, the void 17 is essentially non-functional. Further, since there is no need for any type of securing mechanism or component, thecontainer closure 10 is simple and inexpensive to manufacture. - Rotating the
container closure 10 in a first direction (e.g., a counter-clockwise direction, illustrated inFIG. 5 as the direction of arrow G), when viewing thetop wall 12, rotates thefirst screw threads 18 on theinterior surface 16 b of the secondtubular wall 16 ofcontainer closure 10 out of threaded engagement with the corresponding threads of the container, causing thefirst screw threads 18 and thecontainer closure 10 to become disengaged from the second screw threads of the container. The user need not apply any force to theexterior surface 12 b of thetop wall 12 or to theexterior surface 14 a of the firsttubular wall 14 while rotating thecontainer closure 10. Conversely, rotating thecontainer closure 10 in a second direction (e.g., a clockwise direction, illustrated inFIG. 5 as the direction of arrow F), when viewing thetop wall 12, with or without applying force to thecontainer closure 10, corresponds to tightening of thecontainer closure 10 onto a threaded container. - While the
container closure 10 may appear similar in appearance to a conventional double wall container closure, thecontainer closure 10 is actually an integrally formed double-walled container closure. Thecontainer closure 10 is preferably fabricated from one or more thermoplastic or other polymeric materials using injection molding or other techniques well known to those skilled in the art. In particular, in order to manufacture thecontainer closure 10, a single open mold need only be provided. Next, a polymeric material is injected into the single open mold to form thecontainer closure 10. After the polymeric material has been allowed to cool until substantially solidified, the mold may be removed. Preferably, thecontainer closure 10 is fabricated from a polypropylene or a high density polyethylene material. However, it will be understood by those skilled in the art that any polymeric materials having properties similar to polypropylene or high density polyethylene may be used. - From this disclosure, one of ordinary skill in the art would recognize that other conventional materials and fabrication techniques could be substituted. Also based on this disclosure, a person of ordinary skill in the art would further recognize that the relative proportions of the components illustrated could be varied without departing from the spirit and scope of the invention.
- It will be appreciated by those skilled in the art that changes could be made to the above described preferred
embodiment 10 of the container closure without departing from the broad inventive concepts thereof. It is understood, therefore, that this invention is not limited to the particular embodiment disclosed, but is intended to cover modifications within the spirit and scope of the present invention as defined by the appended claims.
Claims (12)
1. A closure for a container comprising:
a top wall with a peripheral edge, an exterior surface and an interior surface;
a first tubular wall with a radial exterior surface and a radial interior surface, the first tubular wall extending generally transversely downwardly from the peripheral edge of the top wall; and
a second tubular wall with a radial exterior surface and a radial interior surface, the second tubular wall extending generally transversely downwardly from the interior surface of the top wall radially inwardly from the first tubular wall to establish an unobstructed void between the interior surface of the first tubular wall and the exterior surface of the second tubular wall below the interior surface of the top wall, the radial interior surface of the second tubular wall having first screw threads configured to removably engage second screw threads formed on the container, wherein
rotating the closure in a first direction, when viewing the top wall, without applying a force to the exterior surface of the top wall or to the exterior surface of the first tubular wall, causes the first screw threads of the second tubular wall to disengage from the second screw threads of the container.
2. The closure of claim 1 , wherein the first tubular wall is flexible and the second tubular wall is rigid.
3. The closure of claim 1 , wherein the first tubular wall is rigid and the second tubular wall is rigid.
4. The closure of claim 1 further comprising a cylindrical protrusion extending downwardly from the interior surface of the top wall at a central longitudinal axis of the top wall.
5. The closure of claim 1 , wherein the first tubular wall is connected only to the top wall.
6. The closure of claim 5 , wherein the first tubular wall and second tubular wall are integrally formed with the top wall.
7. The closure of claim 1 further comprising a plurality of concentric and spaced-apart ribs extending generally transversely downwardly from the interior surface of the top wall.
8. The closure of claim 7 , wherein the second tubular wall extends generally transversely downwardly from the interior surface of the top wall radially outwardly from an outermost concentric rib of the plurality of concentric ribs.
9. The closure of claim 7 , wherein the degree of spacing between each of the plurality of ribs decreases in a direction leading toward the peripheral edge of the top wall.
10. The closure of claim 1 , wherein a plurality of gripping members protrude from the exterior surface of the first tubular wall.
11. The closure of claim 10 , wherein the plurality of gripping members are a plurality of elongated ribs.
12. A method of manufacturing a container closure having a top wall, a first tubular wall integrally formed with the top wall and extending generally transversely downwardly from a peripheral edge of the top wall, and a second integrally formed tubular wall integrally formed with the top wall and extending generally transversely downwardly from an interior surface of the top wall radially inwardly from the first tubular wall to establish an unobstructed void between the first tubular wall and the second tubular wall, the method comprising providing a single open mold, injecting a polymeric material into the single mold, allowing the polymeric material to cool until substantially solidified, and removing the single mold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/835,014 US20110017741A1 (en) | 2009-07-21 | 2010-07-13 | Container closure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22728609P | 2009-07-21 | 2009-07-21 | |
US12/835,014 US20110017741A1 (en) | 2009-07-21 | 2010-07-13 | Container closure |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110017741A1 true US20110017741A1 (en) | 2011-01-27 |
Family
ID=43496406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/835,014 Abandoned US20110017741A1 (en) | 2009-07-21 | 2010-07-13 | Container closure |
Country Status (1)
Country | Link |
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US (1) | US20110017741A1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD666495S1 (en) * | 2010-11-15 | 2012-09-04 | Drug Plastics & Glass Company, Inc. | Dosage cap |
WO2012149293A1 (en) * | 2011-04-29 | 2012-11-01 | Closure Systems International, Inc. | Double-wall closure |
USD756234S1 (en) | 2014-09-10 | 2016-05-17 | Celgene Corporation | Bottle with cap |
USD756776S1 (en) | 2014-09-10 | 2016-05-24 | Celgene Corporation | Bottle cap |
USD767405S1 (en) | 2015-09-21 | 2016-09-27 | Celgene Corporation | Bottle with cap |
USD778160S1 (en) | 2015-09-21 | 2017-02-07 | Celgene Corporation | Bottle cap |
USD836541S1 (en) | 2016-06-23 | 2018-12-25 | Pax Labs, Inc. | Charging device |
US10244793B2 (en) | 2005-07-19 | 2019-04-02 | Juul Labs, Inc. | Devices for vaporization of a substance |
USD849996S1 (en) | 2016-06-16 | 2019-05-28 | Pax Labs, Inc. | Vaporizer cartridge |
USD851830S1 (en) | 2016-06-23 | 2019-06-18 | Pax Labs, Inc. | Combined vaporizer tamp and pick tool |
USD858872S1 (en) * | 2016-08-08 | 2019-09-03 | Pax Labs, Inc. | Case for a vaporizer cartridge |
USD887632S1 (en) | 2017-09-14 | 2020-06-16 | Pax Labs, Inc. | Vaporizer cartridge |
USD920108S1 (en) * | 2019-10-22 | 2021-05-25 | George J. Partsch, IV | Hygiene rinse cap |
USD942674S1 (en) * | 2019-01-10 | 2022-02-01 | Shenzhen Ivps Technology Co., Ltd. | Electronic cigarette |
US11618619B2 (en) | 2017-11-21 | 2023-04-04 | Drug Plastics & Glass Company, Inc. | Child-resistant single wall squeeze and turn closure and container assembly |
US11873133B2 (en) | 2021-04-20 | 2024-01-16 | Drug Plastics & Glass Company, Inc. | Bottle, injection blow molding core rod for the bottle and related method |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10244793B2 (en) | 2005-07-19 | 2019-04-02 | Juul Labs, Inc. | Devices for vaporization of a substance |
USD666495S1 (en) * | 2010-11-15 | 2012-09-04 | Drug Plastics & Glass Company, Inc. | Dosage cap |
WO2012149293A1 (en) * | 2011-04-29 | 2012-11-01 | Closure Systems International, Inc. | Double-wall closure |
CN103608265A (en) * | 2011-04-29 | 2014-02-26 | 国际密封系统公司 | Double-wall closure |
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US9561884B2 (en) * | 2011-04-29 | 2017-02-07 | Closure Systems International Inc. | Double-wall closure |
USD756234S1 (en) | 2014-09-10 | 2016-05-17 | Celgene Corporation | Bottle with cap |
USD756776S1 (en) | 2014-09-10 | 2016-05-24 | Celgene Corporation | Bottle cap |
USD767405S1 (en) | 2015-09-21 | 2016-09-27 | Celgene Corporation | Bottle with cap |
USD778160S1 (en) | 2015-09-21 | 2017-02-07 | Celgene Corporation | Bottle cap |
USD849996S1 (en) | 2016-06-16 | 2019-05-28 | Pax Labs, Inc. | Vaporizer cartridge |
USD913583S1 (en) | 2016-06-16 | 2021-03-16 | Pax Labs, Inc. | Vaporizer device |
USD929036S1 (en) | 2016-06-16 | 2021-08-24 | Pax Labs, Inc. | Vaporizer cartridge and device assembly |
USD836541S1 (en) | 2016-06-23 | 2018-12-25 | Pax Labs, Inc. | Charging device |
USD851830S1 (en) | 2016-06-23 | 2019-06-18 | Pax Labs, Inc. | Combined vaporizer tamp and pick tool |
USD858872S1 (en) * | 2016-08-08 | 2019-09-03 | Pax Labs, Inc. | Case for a vaporizer cartridge |
USD870963S1 (en) * | 2016-08-08 | 2019-12-24 | Pax Labs, Inc. | Container |
USD887632S1 (en) | 2017-09-14 | 2020-06-16 | Pax Labs, Inc. | Vaporizer cartridge |
USD927061S1 (en) | 2017-09-14 | 2021-08-03 | Pax Labs, Inc. | Vaporizer cartridge |
US11618619B2 (en) | 2017-11-21 | 2023-04-04 | Drug Plastics & Glass Company, Inc. | Child-resistant single wall squeeze and turn closure and container assembly |
USD942674S1 (en) * | 2019-01-10 | 2022-02-01 | Shenzhen Ivps Technology Co., Ltd. | Electronic cigarette |
USD920108S1 (en) * | 2019-10-22 | 2021-05-25 | George J. Partsch, IV | Hygiene rinse cap |
US11873133B2 (en) | 2021-04-20 | 2024-01-16 | Drug Plastics & Glass Company, Inc. | Bottle, injection blow molding core rod for the bottle and related method |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: DRUG PLASTICS & GLASS COMPANY, INC., PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SPRISHEN, GREGORY;REEL/FRAME:024671/0235 Effective date: 20100709 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |