US3814277A - Reclosable can - Google Patents
Reclosable can Download PDFInfo
- Publication number
- US3814277A US3814277A US00254408A US25440872A US3814277A US 3814277 A US3814277 A US 3814277A US 00254408 A US00254408 A US 00254408A US 25440872 A US25440872 A US 25440872A US 3814277 A US3814277 A US 3814277A
- Authority
- US
- United States
- Prior art keywords
- throat
- plug
- friction wall
- wall
- container
- 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.)
- Expired - Lifetime
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
- 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
- B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
- B65D43/022—Removable lids or covers without integral tamper element secured only by friction or gravity only on the inside, or a part turned to the inside, of the mouth of the container
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones
- C06B45/14—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones a layer or zone containing an inorganic explosive or an inorganic explosive or an inorganic thermic component
-
- 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
- B65D2543/00342—Central part of the lid
- B65D2543/0037—Flexible or deformable
-
- 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
- B65D2543/00435—Lids secured to an intermediate ring or like annular member fixed to the container mouth
-
- 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
- B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
- B65D2543/00509—Cup
-
- 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
- B65D2543/00546—NO contact
Definitions
- ABSTRACT A reclosable container having an annular ring with an inwardly-angled upwardly-extending substantially straight shoulder and a surmounting vertical throat whose interior surface frictionally sealingly engages the outer surface of a vertical to inwardly-tapered friction wall on the container plug to provide a tight closure which minimizes leakage and plug dislodgment upon tipping.
- the diameter of the base of the friction wall is greater than the throat diameter, and the junction of the plug central panel and friction wall is disposed lower than the junction of the ring shoulder and throat.
- This invention relates to reclosable containers and more particularly to reclosable single friction and like containers wherein friction in a single area between the container or container ring and lid or plug is largely responsible for closure of the container.
- Reclosable single friction containers are useful where a large opening is desirable, as when the product contained therein is one such as paint which is often poured and which must be accessible over a large area to a stirrer or brush.
- Such containers often have a ring joined to the container body and have a throat defining the opening. The throat usually has a straight portion which frictionally engages a cylindrical friction wall on the plug and thereby effects closure of the container.
- plugs for such containers often do not sufficiently seal the containers contents from the environment and they sometimes allow spillage by be- LII coming dislodged when the containers are tipped during shipping and handling.
- throats of such containers are susceptible to permanent distortion when excessive axial force is exerted on the plug, as during closing, shipment and use.
- This invention is a container comprising a can body, an annular ring and a plug.
- the annular ring has an inwardly-angled, upwardly extending substantially straight shoulder and surmounting vertical to slightly inwardly-angled throat whichcan terminate in a curl.
- the plug has a recessed central panel, preferably flexible and concave, and has an annular vertical to inwardly-angled friction wall adjoining the central panel.
- the outer diameter of the base of the plug friction wall is greater than the inner diameter of the throat, and the junction of the central panel and friction wall is positioned lower than the junction of the shoulder and throat such that the outer surface of the friction wall fits snugly in frictional sealing engagement with the interior surface of the throat.
- the junction of the central panel and friction wall can be and preferably is reformed from a previously larger radius.
- the annular ring can be joined to the can body by means of a conventional double seam and the ring preferably has a substantially U-shaped channel formed by a countersink wall, an arcuate wall and the straight shoulder.
- FIG. 1 is a side elevation of a container made in accordance with the present invention.
- FIG. 2 is an enlarged sectional view taken through lines 2-2 of FIG. 1 showing the plug normally seated on the top of the container.
- FIG. 3 is an enlarged sectional view showing the plug above the container prior to its being seated within the container throat.
- FIG. 1 shows a container generally designated 10, having a container body, 11, closed at one end by a bottom end closure, 12, seamed to the container body by conventional means.
- an annular ring, 13 is joined to the upper end of can body, 11, by conventional means such as a double seam, l4.
- Annular ring 13 includes a countersink wall 15 which forms the inner layer of double seam 14 and, at its bottom end, merges into a substantially U-shaped channel 16 which merges into an inwardly-angled upwardly extending, substantially straight shoulder 18, in turn adjoining and merging into a vertical to inwardly-angled throat 20 which can terminate at its uppermost end in an annular bead or curl 22.
- a sealing plug generally designated 30, having a recessed, flexible central panel 32 and an annular, vertical to inwardly-angled friction wall 34 is shown seated on container 10 so that the base of plug friction wall 34, adjacent recessed central panel 32 fits snugly in ring 13 with the outer surface of plug friction wall 34 being in frictional sealing engagement with the inner surface of throat 20.
- Annular friction wall 34 can extend upwardly into, adjoin and merge into an annular curved channel portion 36 which extends outwardly from friction wall 34 and merges with an inclined flange portion 38 which in turn merges with an annular downwardly-projecting skirt 39 which terminates in integral reinforcing bead or curl 40 extending generally outwardly from skirt 39.
- FIG. 3 shows plug 30 above and aligned with ring 13 of container body 11 just before being placed thereon to effect the closure shown in FIG. 2.
- the diameter of plug 30 measured from the outer surface of the base of friction wall 34 is larger than the diameter of ring 13 measured from the interior surface of the base of throat 20. Having a larger diameter at the base of the friction wall is essential for obtaining a proper seal between throat 20 and friction wall 34 and for preventing spillage and dislodgment of plug 30 from the throat. How much larger the diameter must be depends on the gauge and flexibility of the particular type material of which the overall container is made. The diameter must be large enough so that the base of friction wall 34 locks under the junction of shoulder 18 and throat 20 of ring 13. For typical 1 gallon paint containers made of typical steels such as electrolytic tinplate (ETP), lb. gauge plate for ring 13, and 118 lb. gauge plate for plug 30, it has been found that the diameter at the base of plug 30, i.e., adjacent A, must be at least 0.004 inch larger than the diameter at the base of throat 20, i.e., adjacent B.
- ETP electrolytic tinplate
- plug centerline A (FIG. 2), extending horizontally from the point of the radius, i.e. the center of the circle a portion of whose circumference forms the radius of curvature of the junction of central panel 32 and friction wall 34, must be lower than centerline B, extending from the point of the radius forming the radius of curvature of the junction of shoulder 18 and throat 20.
- centerline B extending from the point of the radius forming the radius of curvature of the junction of shoulder 18 and throat 20.
- Centerline A should be high enough relative to double seam 14 to permit an opening device to be inserted over the double seam and under plug curl 40 to effect a'facile removal of plug 30 from ring 13.
- the length of the radius forming the centerline A can advantageously be about 0.050 inch. Shorter radii and smaller radii of curvature raise the number of tips obtainable prior to leakage and plug dislodgment. Longer radii tend to be more preventive of throat distortion due to axial forces exerted in the container.
- the length of the radius forming centerline B can advantageously be about .040 inch. Radii approaching zero provide increasingly greater abuse resistance.
- the radius of curvature forming the plug junction adjacent centerline A is of greater rigidity than the rest of friction wall 34.
- the junction between central panel 32 and friction wall 34 must be rigid enough to lock the base of plug 30 securely under the junction between shoulder 18 and throat 20. How rigid the junction must be depends among other things on the size container, the gauge metals employed, the length of the radius B, the weight of the product contained in the container, and the number of tips considered to be acceptable before spillage or plug dislodgment occurs.
- One means of effecting such greater rigidity is by first forming the radius of curvature in a larger diameter, and then reforming it to a smaller diameter. The manner in which this is done is well known to those skilled in the art.
- Results of tip tests conducted upon 1 gallon, 6 10/16 inch diameter paint containers constructed with and without reformed radii of curvature adjacent centerline A, are shown in TABLE I, and indicate that reformed radii of curvature give a higher number of tips than formed ones.
- the tests involved filling containers with from 1 gal. to 1 gal. 9 oz. of water and placing the containers right-side up on a concrete surface. The cans were manually gradually tipped on the edges of their bottom end closures 12, until gravity caused the containers to fall freely on their sides. The container rings were made of 135 lb. ETP and the plugs of l 18 lb. ETP.
- friction wall 34 is vertical to preferably inwardly-angled. In wardly-angled here means angled towards the central axisof container 10. Otherwise stated friction wall 34 is slightly tapered from bottom to top so that the base adjacent A has a larger diameter than the top adjacent channel portion 36. For the aforementioned container, it has been found that satisfactory closures can be obtained when the angle of friction wall 34 is from 0, to about 1, preferably .5", from the vertical.
- Throat 20 of ring 13 also is vertical to inwardlyangled.
- FIG. 2 shows throat 20 as substantially vertical, throat 20, due to characteristics of metals, tends to be effected by the angle of shoulder 18 and tends to take on a slightly inward angle or taper, which is acceptable according to this invention.
- Central panel 32 can have a flat, but preferably has a concave profile. Central panel 32 is flexible so that it can flex to the position of the dotted domed profile 32' for example when a filled container 10 is tipped, or when it compensates for increases in internal pressure due to expanding gases such as when the product in the container is an exothermic paint material.
- Substantially U-shaped channel 16 need not be so shaped but can be substantially horizontal without significantly affecting the number of tips that can be obtained utilizing the construction of this invention.
- a substantially U-shaped channel is especially advantageous when employed with a shortstraight portion 16 because together they are especially effective in providing additional strength against forces exerted both radially and axially against the container.
- Flange 38, skirt 39 and curl 40 can be of any suitable configuration but preferably they are as shown in the drawing.
- Skirt 39 can be provided with a series of conventional stop lugs (not shown) extending outward from skirt 39 and overlying double seam 14. When excessive axial forces are exerted on the container for example during initial container closing operations, such stop lugs can abut double seam 14 to prevent such forces from excessively distorting ring 13.
- the configuration and function of such stop lugs is disclosed in US. Pat. No. 3,397,807 issued Aug. 20, 1968.
- a container comprising:
- annular ring joined to one end of said can body by a double seam, said ring having a substantially U- shaped channel, said channel being formed by a countersink wall, which merges directly into a substantially arcuate wall, which in turn merges into an inwardly-angled upwardly-extending substantially straight shoulder, said shoulder adjoining a vertical to inwardly-angled throat at an inner portion of said ring above said seam;
- said plug having a recessed concavelyprofiled flexible central panel and an annular, inwardly-angled friction wall adjoining said central panel, the outer diameter of the base of said plug friction wall being greater than the inner diameter of said throat, and the junction of said central panel and said friction wall having a reformed radius of 6 is joined to said can body by a conventional double seam, the terminal portion of said throat is curled and said plug has an annular, inverted, substantially U- shaped wall adjoining said friction wall and complementarily sitting in frictional engagement on said throat curl.
Abstract
Description
Claims (2)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00254408A US3814277A (en) | 1972-05-18 | 1972-05-18 | Reclosable can |
CA166,856A CA975324A (en) | 1972-05-18 | 1973-03-23 | Reclosable can |
GB1873573A GB1408484A (en) | 1972-05-18 | 1973-04-18 | Reclosable container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00254408A US3814277A (en) | 1972-05-18 | 1972-05-18 | Reclosable can |
Publications (1)
Publication Number | Publication Date |
---|---|
US3814277A true US3814277A (en) | 1974-06-04 |
Family
ID=22964201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00254408A Expired - Lifetime US3814277A (en) | 1972-05-18 | 1972-05-18 | Reclosable can |
Country Status (3)
Country | Link |
---|---|
US (1) | US3814277A (en) |
CA (1) | CA975324A (en) |
GB (1) | GB1408484A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373629A (en) * | 1981-06-09 | 1983-02-15 | Akzona Incorporated | Used surgical sharps container with re-usable magnetic base |
US4880131A (en) * | 1987-11-13 | 1989-11-14 | Van Dorn Company | Ringless paint container |
US4936482A (en) * | 1987-11-13 | 1990-06-26 | Van Dorn Company | Ringless paint container |
US5065888A (en) * | 1987-11-13 | 1991-11-19 | Van Dorn Company | Improved ringless paint container with step down lid |
US5103995A (en) * | 1987-11-13 | 1992-04-14 | Van Dorn Company | Ringless paint container with step down lid |
US5240138A (en) * | 1987-11-13 | 1993-08-31 | Van Dorn Company | Ringless paint container |
US5810184A (en) * | 1995-01-30 | 1998-09-22 | Portola Packaging, Inc. | Fitment having removable membrane |
US6464096B2 (en) | 1995-01-30 | 2002-10-15 | Portola Packaging, Inc. | Fitment having removable membrane |
US20040060935A1 (en) * | 2002-09-26 | 2004-04-01 | Monti Industries B.V. | Devices for containing liquid, in particular beverages, and seal for a beverage can |
US20070080159A1 (en) * | 2003-09-05 | 2007-04-12 | Brasilata S/A Embalagens Metalicas | Can for bulk products |
US20070170236A1 (en) * | 2004-02-16 | 2007-07-26 | Stora Enso Oyi | Cup package of a fibrous material and a method of manufacturing the same |
US7413097B1 (en) | 2003-08-01 | 2008-08-19 | Portola Packaging, Inc. | Tamper-evident closure and method of making same |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1337526A (en) * | 1917-09-01 | 1920-04-20 | Thermokept Products Corp | Can |
US1997291A (en) * | 1933-08-31 | 1935-04-09 | Sherwin Williams Co | Container |
US2244341A (en) * | 1937-12-17 | 1941-06-03 | Dow Chemical Co | Method for dispensing methyl bromide |
US2795350A (en) * | 1953-12-02 | 1957-06-11 | Dev Res Inc | Explosion-proof low-pressure containers |
US2864528A (en) * | 1954-08-20 | 1958-12-16 | Continental Can Co | Metal can for food products |
US2905357A (en) * | 1957-06-24 | 1959-09-22 | American Can Co | Container |
US2971671A (en) * | 1956-10-31 | 1961-02-14 | Pabst Brewing Co | Container |
US3329302A (en) * | 1963-12-13 | 1967-07-04 | Metal Box Co Ltd | Cans |
US3397807A (en) * | 1967-07-17 | 1968-08-20 | American Can Co | Reclosable can |
-
1972
- 1972-05-18 US US00254408A patent/US3814277A/en not_active Expired - Lifetime
-
1973
- 1973-03-23 CA CA166,856A patent/CA975324A/en not_active Expired
- 1973-04-18 GB GB1873573A patent/GB1408484A/en not_active Expired
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1337526A (en) * | 1917-09-01 | 1920-04-20 | Thermokept Products Corp | Can |
US1997291A (en) * | 1933-08-31 | 1935-04-09 | Sherwin Williams Co | Container |
US2244341A (en) * | 1937-12-17 | 1941-06-03 | Dow Chemical Co | Method for dispensing methyl bromide |
US2795350A (en) * | 1953-12-02 | 1957-06-11 | Dev Res Inc | Explosion-proof low-pressure containers |
US2864528A (en) * | 1954-08-20 | 1958-12-16 | Continental Can Co | Metal can for food products |
US2971671A (en) * | 1956-10-31 | 1961-02-14 | Pabst Brewing Co | Container |
US2905357A (en) * | 1957-06-24 | 1959-09-22 | American Can Co | Container |
US3329302A (en) * | 1963-12-13 | 1967-07-04 | Metal Box Co Ltd | Cans |
US3397807A (en) * | 1967-07-17 | 1968-08-20 | American Can Co | Reclosable can |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373629A (en) * | 1981-06-09 | 1983-02-15 | Akzona Incorporated | Used surgical sharps container with re-usable magnetic base |
US4880131A (en) * | 1987-11-13 | 1989-11-14 | Van Dorn Company | Ringless paint container |
US4936482A (en) * | 1987-11-13 | 1990-06-26 | Van Dorn Company | Ringless paint container |
US5065888A (en) * | 1987-11-13 | 1991-11-19 | Van Dorn Company | Improved ringless paint container with step down lid |
US5103995A (en) * | 1987-11-13 | 1992-04-14 | Van Dorn Company | Ringless paint container with step down lid |
US5240138A (en) * | 1987-11-13 | 1993-08-31 | Van Dorn Company | Ringless paint container |
US5810184A (en) * | 1995-01-30 | 1998-09-22 | Portola Packaging, Inc. | Fitment having removable membrane |
US6464096B2 (en) | 1995-01-30 | 2002-10-15 | Portola Packaging, Inc. | Fitment having removable membrane |
US20040060935A1 (en) * | 2002-09-26 | 2004-04-01 | Monti Industries B.V. | Devices for containing liquid, in particular beverages, and seal for a beverage can |
US7413097B1 (en) | 2003-08-01 | 2008-08-19 | Portola Packaging, Inc. | Tamper-evident closure and method of making same |
US20070080159A1 (en) * | 2003-09-05 | 2007-04-12 | Brasilata S/A Embalagens Metalicas | Can for bulk products |
US20070170236A1 (en) * | 2004-02-16 | 2007-07-26 | Stora Enso Oyi | Cup package of a fibrous material and a method of manufacturing the same |
US9617061B2 (en) * | 2004-02-16 | 2017-04-11 | Stora Enso Oyj | Cup package of a fibrous material and a method of manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
GB1408484A (en) | 1975-10-01 |
CA975324A (en) | 1975-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: AMERICAN CAN PACKAGING INC., AMERICAN LANE, GREENW Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMERICAN CAN COMPANY, A NJ CORP.;REEL/FRAME:004835/0338 Effective date: 19861107 Owner name: AMERICAN NATIONAL CAN COMPANY Free format text: MERGER;ASSIGNORS:AMERICAN CAN PACKAGING INC.;TRAFALGAR INDUSTRIES, INC. (MERGED INTO);NATIONAL CAN CORPORATION (CHANGED TO);REEL/FRAME:004835/0354 Effective date: 19870430 Owner name: AMERICAN CAN PACKAGING INC., CONNECTICUT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMERICAN CAN COMPANY, A NJ CORP.;REEL/FRAME:004835/0338 Effective date: 19861107 Owner name: AMERICAN NATIONAL CAN COMPANY, STATELESS Free format text: MERGER;ASSIGNORS:AMERICAN CAN PACKAGING INC.;TRAFALGAR INDUSTRIES, INC. (MERGED INTO);NATIONAL CAN CORPORATION (CHANGED TO);REEL/FRAME:004835/0354 Effective date: 19870430 |