US3759206A - Push-in easy-opening closures - Google Patents

Push-in easy-opening closures Download PDF

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Publication number
US3759206A
US3759206A US00180785A US3759206DA US3759206A US 3759206 A US3759206 A US 3759206A US 00180785 A US00180785 A US 00180785A US 3759206D A US3759206D A US 3759206DA US 3759206 A US3759206 A US 3759206A
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United States
Prior art keywords
opening
sheet metal
closure member
free edge
closure
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Expired - Lifetime
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US00180785A
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English (en)
Inventor
A Dalli
M Debenham
R Schackleford
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Broken Hill Pty Co Ltd
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Broken Hill Pty Co Ltd
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Publication date
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • 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
    • B65D2205/00—Venting means

Definitions

  • ABSTRACT This specification dislcoses an easy-opening closure for a canend which comprises an opening formed by partially severing a portion from the can end to leave the portion attached thereto by an integral neck, and a clo-' sure member formed from said severed portion and which is largerthan said opening.
  • the sheet metal adjacent the free edge of the opening is downwardly turned while the sheet metal adjacent the free edge of the closure member is upwardly turned, said free edges being in contact with or in close proximity to each other.
  • sealant is applied at least in the region of the free edges if required by the purpose for which the can end is to be used.
  • the specification also discloses a method of forming such a closure comprising the steps of: forming an upwardly directed bulge in the sheet metal, thus stretching the sheet; partially severing a central portion of said bulge, to define an opening and said severed portion defining a closure member for said opening,
  • This invention relates to easy-opening closures for containers made at least partly from sheet metal, such as metal cans for beverages of all kinds, other liquids, and pourable products.
  • the most widely marketed easy-opening closures for beverage cans are formed in can ends made from aluminium or an aluminium alloy, the closure member being defined by a score line that weakens the metal and having attached to it'a pull ring for tearing the closure member from the can end.
  • a tinplate can end has an insert of aluminium that incorporates a closure member defined by a score line. Again, a pull ring is attached to the closure member to enable it to be torn from-the can end.
  • Can ends made from steel or tinplate and incorporating a score line defining an easy-opening closure adapted for removal by a pull ring are also known.
  • the disadvantage with such closures is that the scoring operation causes work hardening of the steel, thus making more difficult the easy removal of the closure by the usual tearing operation. The difficulty is accentuated when the edge of the scoring tool becomes rounded in use. Then the strength of the deformed metal can reach levels where the forces necessary to tear the score are higher than those necessary to tear the adjacent sheet. As a result, the tear does not follow the score line and the can becomes difficult to open and dangerous in use.
  • the primary object of the invention is therefore to provide an easy-opening closure that can be readily and economically formed from steel or tinplate and that avoids the abovementioned disadvantages.
  • Another object of the invention is to provide an easy-opening closure that can be economically formed from aluminium or aluminium alloy and that has a closure member which is not removed from the confines of the container when the closure is opened thus reducing the litter problem.
  • an easy-opening closure comprising an opening formed by partially or wholly severing a portion of the -.sheet metal of said container member, the free edgeof said sheet metal from which said portion is severed deor comprising said'severed portion and which is larger than said opening, said closure member having part of a free edge portion thereof in contact with or in close proximity to said free edge defining said opening, or the interior surface of the sheet metal adjacent said opening, said closure member having a sealant at least in the region of the free edges of said opening and closure member if required'by the purpose for which said container member is to be used and being adapted to be pushed away from said interior surface to open the closure.
  • the closure member is larger than the opening in order that any internal pressure arising from the contents, e.g., carbonated beverages, of the container is resisted by the overlap.
  • said portion is only partially severed from said container member to leave an integral neck that serves as a hinge during the opening operation and ensures that the closure member remains connected to the container member.
  • a hinge may be formed separately, such as by a strong adhesive material.
  • the term container member is intended to include any integral part of a container, such as part of the container body, a container end or an insert adapted to form part of a container body or end.
  • sheet metal includes steel, tinplate, aluminium and its alloys, other metals suitable for container manufacture, and laminates of these metals with relatively thin plastic films.
  • severing means an incision extending through the full thickness of the sheet metal from one surface to the other. Thus partially severing portion of the sheet metal means that such portion remains attached to the parent metal only by one or more necks of unincised metal between the two ends of the incision or incisions.
  • free edge means the metal surface created by the incision and includes the corners defining said surface.
  • free edge portion includes the free edge as defined as well as the sheet metal adjacent to the corners of the free edge.
  • the term in close proximity includes spacings such that aseal effective for the purpose for which the container member is to be used is obtained by the use of a suitable conventional sealant. ln the case of constructions not requiring sealant, say for powders, the term includes spacings such that the contents of the container can not escape.
  • the invention provides an easyopening closure as hereinbefore described and in which a segment or segments of the free edge portion of the closure member are formed to extend over the exterior surface of the sheet metal adjacent to the opening.
  • the extent to which this overlap occurs is designed to resist opening of the closure by atmospheric pressure or acciv an opening and said severed portion defining a closure member for said opening, and then reducing the size of said opening and/or increasing the size of said closure member, a part of a free edge portion of said closure member being in contact with'or in close proximity to said free edge defining said opening or the interior surface of the sheet metal adjacent said opening and applying a sealant at least in the region of the free edges of the opening and closure member if required by the purpose for which said container member is to be used.
  • FIG. 1 is a plan view of one form of a can end embodying the invention
  • FIG. 2 is a sectional elevation view taken along the line 2-2 of FIG. 1;
  • FIG. 3 is an enlarged plan view of one closure of the can end of FIG. 1;
  • FIG. 4 is a plan view of a form of can end suitable forcontainers having contents at or below atmospheric pressure
  • FIG. 5 is a plan view of a modified form of can end suitable for containers with contents at or below atmospheric pressure;
  • FIG. 6 is a sectional elevation view taken along the line 99 of FIG. 3 and shows the first stage in the formation ofa closure in the can end shown in the preceding figures;
  • FIGS. 7, 8 and 9 are sectional elevation views taken along line 9-9 of FIG. 3, showing successive stages in the formation of the said closure;
  • FIG. 10 is a sectional elevation view taken along the line 1010 of FIG. 3;
  • FIG. 11 is a sectional elevation view taken along the line 11-11 of FIG. 4, and
  • FIG. 12 is a sectional elevation view taken along the line 12-12 of FIG. 5.
  • the can end 10 shown in the drawings comprises a circular disc of tinplate, the rim of which is preformed (FIG. 2) in the usual way for subsequent attachment by a seaming operation to the upper end of a can body.
  • the can end 10 is provided with a diametrically opposed pair of easy-opening closures each including an integral push-in closure member 12 which has been severed from the disc and each of which remains connected thereto by a narrow neck 14 which is best shown in FIGS. 3 and 10, each suck neck being arranged centrally at the outer end of the respective closure member 12 and serving as a hinge during the closure opening operation.
  • neck or hinge 14 with respect to closure member 12 has been chosen to strengthen the can end in resisting internal pressure created by the contents of the can. However, other locations can be used providing the can end can resist the maximum internal pressure for the particular application.
  • each closure member 12 in the can end 10 provides a corresponding opening 16 defined by the free edge 17 of the can end 10 which is created by the severing of closure member 12 from the can end 10 but each such opening is completely covered and sealed by the respective closure member 12 until the latter is subsequently pressed downwardly, as shown in broken lines in FIG. 10, to open the closure.
  • the closure or closures may assume any desired shape or configuration. The shape shown in the drawings has been chosen both for its pouring characteristics and its aesthetic appeal.
  • the free edge 18 of the free edge portion 19 of the closure member 12 is in contact with or in close proximity to the free edge 17 of the opening 16.
  • the closure member 12 is most desirably formed so as to be resiliently biased towards the opening 16 so that contact with the free edge 17 of the opening occurs at least around some of its periphery.
  • the closure member 12 since the closure member 12 has part of its free edge 18 beyond or outside the free edge 17 of the opening 16, the area of the closure member 12 is larger than that of the opening 16.
  • the amount of overlap between the closure member 12 and the opening 16 is indicated by the distance x in the various Figures. Hence, the closure member will be positively restrained from being displaced upwardly by internal pressure in a can to which the end 10 is applied.
  • a suitable sealant S to seal any gap between the free edge 18 of the closure member 12 and the free edge 17 opening 16 results in the closure providing an hermetically sealed can after filling and completion.
  • the closure member may be readily pushed downwardly as shown in FIG. 10 and when so displaced remains attached by neck 14 to the can end 10.
  • the sealants may be any suitable polymer, either natural or synthetic. Typical sealants that may be used are those based on polyvinyl chloride, polyvinyl dichloride, polyethylene or its copolymers, polyamides, and the like. Conceivably, soft solder could also be used.
  • the coating of lacquer commonly applied to the interior surfaces of metal containers may serve to seal the closure.
  • each closure 12 is illustrated in successive stages in FIGS. 6, 7, 8 and 9 though it will be apparent to those skilled in the art that the required result is not dependent upon using the particular shapes which are illustrated and that the number of forming operations could be reduced or increased.
  • an upward bulge 20 is formed initially in can end 10, either before, after or during formation of its rim, thus stretching the sheet metal within the region of the bulge 20.
  • the bulge has a shoulder 22 where the metal is generally parallel to the plane of the undeformed sheet metal around the bulge 20.
  • a generally central portion 24 of the bulge 20 is partially severed approximately centrally of the shoulder 22, thus defining the portion which will be formed into the closure member 12 and also defining the opening 16.
  • the portion 24 and the opening 16 are surrounded by flat rims, formerly parts of the shoulder 22.
  • the truncated portion of bulge 20 around the opening 16 including the flat rim is partially flattened, thus reducing the size of the opening 16 by forcing its free edge 17 inwardly.
  • the free edge 17 is also turned downwardly, which has the important result of presenting a smooth periphery to the openers fingers or lips should he drink from the can.
  • the closure member 12 is partiallyflattened, thus increasing its size by forcing its free edge 18 outwardly.
  • the free edge 18 is also turned upwardly so that it is in contact with or at least in close proximity to the free edge 17 of the opening 16.
  • the upward turning of the free edge of the closure member has the advantage that any fin F of raw and ragged metal produced by the shearing operation at the lower corner of the free edge 18 of the closure member 12 is located more definitely in the region of application of sealant S around the gap.
  • the covering of the fin F with sealant is desirable in order to prevent contact of raw metal with the contents of the can.
  • FIGS. 6 and 7 may be performed in one die operation.
  • steps shown in FIGS. 8 and 9 may also be performed simultaneously, the sealant application normally being a separate operation.
  • the downward and'upward turning of the free edges of the opening and the closure member respectively is of course achieved by the use of suitably shaped dies.
  • the dies are also designed so that the closure member is resiliently biased towards the opening as previously mentioned.
  • the desirable amount of overlap depends inter alia on the size of the closure, the properties of the sheet metal, and the pressure in the container for which the can end is made.
  • an end for a beer can made from high temper tinplate about 0.012 inches (0.3 mm) thick we have found that an overlap x of 0.0l5 inches (038mm) is very satisfactory.
  • the free edge 17 is preferably disposed outwardly of and above the lever of free edge 18.
  • the contact or close proximity may be between free edge 17 and the outside surface of free edge portion 19 or between free edge 18 and the interior surface of can end 10 adjacent opening 16.
  • complete overlap is not essential and that the embodiment described above is a commercially workable and acceptable embodiment.
  • FIGS. 13 to 17 Another alternative construction is shown in FIGS. 13 to 17 where parts similar to those of the first embodiment are indicated by the suffix c.
  • the closure member 12c remains connected to the end 106 by a neck 14c of metal and the free edge 180 of the free edge portion 19c is disposed beyond or outside the free edge 17c of the opening 16c.
  • the edge portion l c an d the edge 170 are not turned upwardly and downwardly but remain-in their severed orientation as clearly shown in FIG. 14. It will be seen that there is contact (or close proximity) between the free edge 17c and the exterior surface of the free edge portion 19c.
  • the method of forming the closure 120 is illustrated in its successive stages in FIGS. l5, l6 and 17.
  • first stage FIG. 15
  • second stage FIG. 16
  • a generally central portion 24c of the bulge 20 is severed from end 100, except for a portion defining the neck 14c, and the severed portion is displaced downwardly so that its free edge 18c is below the free edge 17c of the opening.
  • the final stage involves the partial flattening of the truncated bulge around the opening to reduce the opening to a size smaller than the size of the closure member 120, and then the application of a sealant S as in the first embodiment.
  • the bulge may be annular in shape with the central portion being in the plane of the undeformed sheet or at any rate lower than the height of the annulus. Severance of the metal around the high est part of the annulus then defines an opening and a closure member each having a raised rim which when partially flattened reduces the size of the opening and increasesthe size of the closure member.
  • the closure member 12a has some of its free edge portion 19a at 25 in contact with or closely overlying the exterior surface of the can end 10. This prevents the closure member 12a from being opened by accidental contact or by atmospheric pressure.
  • the width of the overlap between edge 15 and the periphery of the opening would be much less than that shown in FIG. 4 and even in FIG. 11.
  • each extremity of the overlap 25, a short incision may ments 25b of free edge 19b on the exterior surface of g the can end.
  • the easy-opening closure and the immediately surrounding parts of the can end may be covered by a removable adhesive covering strip of paper, plastic film or other suitable material if this is found desirable for reasons of hygiene.
  • the ebodiments described are primarily intended for cans having liquid contents. Cans for powdered, granular or other non-liquid contents would not essentially require a sealant since a small dab of adhesive in one or more places around the closure member would be satisfactory.
  • the closure would of course be designed so that any gap between the closure and opening would not allow the contents to escape. For substances such as salt and pepper, perforated caps may be provided to fit into the opening after the closure member has been displaced.
  • the closure member is larger than the opening as defined by its free edge
  • the gate panel or closure member in said disclosure is larger than the opening defined by the convex rim of the upper 180 fold and is not larger than the opening defined by the score cut.
  • the gate panel may be considered to be smaller than the opening defined by the score cut by an amount of the width of the cut.
  • our closures do not require severe metal deformation during their formation.
  • closures when our closures are fonned from high temper (e.g., Temper 6) or double reduced steel the metal does not suffer from stress cracks and therefore such closures have distinct advantages over the above U.S. art.
  • high temper e.g., Temper 6
  • low temper steel such as for contents at atmospheric pressure
  • the closures When-formed from low temper steel (such as for contents at atmospheric pressure) the closures have the advantage that their formation is simple and economic.
  • a method of forming an easy-opening closure in a sheet metal container member comprising forming a bulge in an area of the sheet metal container member
  • said bulge includes an approximately flat area of sheet metal that is generally parallel to the plane of the sheet metal surrounding said bulge, said severing being carried out substantially within said flat area.
  • said freeedge portion of said closure member has a plurality of segments, at least one of said segments overlying a surface of the sheet metal adjacent said opening, and' at least one other of said segments overlying the opposite surface of the sheet metal adjacent said opening.
  • a method of forming an easy-opening closure in a container member of sheet metal comprising the following steps:
  • said bulge includes an approximately flat area of sheet metal that is generally parallel to the plane of the sheet metal surrounding said bulge, said severing being carried out substantially within said flat area.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US00180785A 1970-09-16 1971-09-15 Push-in easy-opening closures Expired - Lifetime US3759206A (en)

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AUPA255670 1970-09-16

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US (1) US3759206A (de)
JP (1) JPS5618456B1 (de)
BR (1) BR7106052D0 (de)
CA (1) CA1060815A (de)
DE (1) DE2146452C3 (de)
FR (1) FR2106562B1 (de)
GB (1) GB1361784A (de)
ZA (1) ZA716200B (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886881A (en) * 1973-12-03 1975-06-03 Coors Container Co Method of making a press tab container end from a metallic shell
US3888199A (en) * 1973-12-03 1975-06-10 Coors Container Co Method of making a press tab container end from a metallic web
US3929251A (en) * 1972-08-17 1975-12-30 Aluminum Co Of America Container wall with rupturable weakening line
US3935961A (en) * 1974-09-30 1976-02-03 Bennett Robert A Unitary beverage container
JPS5131576A (ja) * 1974-09-10 1976-03-17 Toyo Seikan Kaisha Ltd Kanikaifukanyogaitai no seizohoho
US3958717A (en) * 1975-08-15 1976-05-25 Jos. Schlitz Brewing Company Lid construction for a container
US3980200A (en) * 1975-04-28 1976-09-14 Klein Gerald B Sealant for pushdown gate in a can lid
US3980034A (en) * 1973-05-15 1976-09-14 Michael Debenham Method of producing an easy-opening closure
US3981652A (en) * 1974-08-05 1976-09-21 Usm Corporation Machine for partly coating articles
US3999494A (en) * 1974-08-23 1976-12-28 Toyo Seikan Kaisha Limited Method and apparatus for forming openings in a can end and applying a sealant to the inside surfaces of the openings
US4024980A (en) * 1974-11-08 1977-05-24 Crown Cork & Seal Company, Inc. Easy opening can end having a closure plug
DE2707064A1 (de) * 1977-02-18 1978-11-16 American Can Co Verfahren zur ausbildung eines oeffnungslappens in blechbehaelter- endverschluessen
EP0008191A1 (de) * 1978-08-04 1980-02-20 Michael Fred Joyce Metallischer Behälterverschlussdeckel und Verfahren zu dessen Herstellung
EP0030649A2 (de) * 1979-12-13 1981-06-24 Schmalbach-Lubeca AG Verfahren zum Herstellen von Deckeln aus Blech für Behälter, insb. Dosen
US4319692A (en) * 1980-06-23 1982-03-16 Gundlach Roy L Litter free protective beverage can lid
US4723684A (en) * 1983-06-02 1988-02-09 Lambert G Steven Can lid with integral push-in tab
DK154269B (da) * 1977-02-24 1988-10-31 American National Can Co Fremgangsmaade til fremstilling af en lap til lukning af en aabning i et metalendelukke.
DE3941432A1 (de) * 1989-12-15 1991-06-20 Rasselstein Ag Dosendeckel aus blech, insbesondere fuer dosen, deren inhalt unter innendruck steht, und verfahren zu dessen herstellung
US5769259A (en) * 1994-03-02 1998-06-23 The Broken Hill Proprietary Co Ltd Full-open end panel for container closure
US6131763A (en) * 1999-07-19 2000-10-17 Stanish; Walt Beverage container and dispenser apparatus
US8640905B2 (en) 2005-08-25 2014-02-04 Daniel Robert Gibson Container
EP3487773A4 (de) * 2016-09-06 2020-03-11 Stolle Machinery Company, LLC Behälterverschluss mit verschobener materiallinie und werkzeug und zugehöriges verfahren zur herstellung eines verschlusses

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054228A (en) * 1977-04-01 1977-10-18 American Can Company Can end closure having first and second sealing means
AU532786B2 (en) * 1979-08-13 1983-10-13 Broken Hill Proprietary Company Limited, The Push - in closure
DE3639428C1 (de) * 1986-11-18 1987-08-27 Rasselstein Ag Verfahren zum Herstellen eines mit einem eindrueckbaren OEffnungslappen versehenen Dosendeckels aus Blech
DE3716382A1 (de) * 1987-05-15 1988-11-24 Schmalbach Lubeca Deckel aus blech fuer dosen
GB8903629D0 (en) * 1989-02-17 1989-04-05 Metal Box Plc Metal/polymer laminates
DE102020128491A1 (de) 2020-10-29 2022-05-05 Top Cap Holding Gmbh Dosendeckel und Verfahren zum Herstellen eines Dosendeckels

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176898A (en) * 1938-09-06 1939-10-24 Us Can Corp Container
US2261117A (en) * 1939-06-09 1941-11-04 Us Can Corp Closure member and method of preparing same
US2652169A (en) * 1948-02-24 1953-09-15 Paul E Brusienski Hand pressure released container opening
US2787394A (en) * 1954-01-21 1957-04-02 Baxter Laboratories Inc Closure
US2789718A (en) * 1953-09-28 1957-04-23 Baxter Laboratories Inc One-piece tear-cap or closure
US2842295A (en) * 1956-01-24 1958-07-08 Bajada Anthony Lid closure for can containers
US3195763A (en) * 1960-11-10 1965-07-20 Fried Louis Receptacle and opening means therefor
US3227304A (en) * 1964-09-08 1966-01-04 Charles T Ashury Can opening arrangement
US3236409A (en) * 1964-07-06 1966-02-22 United States Steel Corp Push-in can-end closure with holding means
US3246791A (en) * 1963-08-12 1966-04-19 Charles T Asbury Can-opening arrangement
US3261497A (en) * 1964-03-02 1966-07-19 Nat Can Corp Can
US3266452A (en) * 1962-12-07 1966-08-16 American Can Co Sift-proof dredge closure and method of producing same
US3341057A (en) * 1964-12-01 1967-09-12 Continental Can Co Easy opening container end
US3355058A (en) * 1965-12-06 1967-11-28 Charles T Asbury Push-in can lid
US3362569A (en) * 1964-08-24 1968-01-09 Joseph A. Geiger Container closures with breakable openings
US3410436A (en) * 1966-09-23 1968-11-12 Anchor Hocking Glass Corp Closure cap with venting means
US3445027A (en) * 1968-01-18 1969-05-20 Jones & Laughlin Steel Corp Easy opening containers
US3552341A (en) * 1968-08-01 1971-01-05 Stanray Corp Method for forming a roof hatch assembly
US3575122A (en) * 1968-07-03 1971-04-13 Stanray Corp Methods of constructing a hatch frame and cover therefor

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176898A (en) * 1938-09-06 1939-10-24 Us Can Corp Container
US2261117A (en) * 1939-06-09 1941-11-04 Us Can Corp Closure member and method of preparing same
US2652169A (en) * 1948-02-24 1953-09-15 Paul E Brusienski Hand pressure released container opening
US2789718A (en) * 1953-09-28 1957-04-23 Baxter Laboratories Inc One-piece tear-cap or closure
US2787394A (en) * 1954-01-21 1957-04-02 Baxter Laboratories Inc Closure
US2842295A (en) * 1956-01-24 1958-07-08 Bajada Anthony Lid closure for can containers
US3195763A (en) * 1960-11-10 1965-07-20 Fried Louis Receptacle and opening means therefor
US3266452A (en) * 1962-12-07 1966-08-16 American Can Co Sift-proof dredge closure and method of producing same
US3246791A (en) * 1963-08-12 1966-04-19 Charles T Asbury Can-opening arrangement
US3261497A (en) * 1964-03-02 1966-07-19 Nat Can Corp Can
US3236409A (en) * 1964-07-06 1966-02-22 United States Steel Corp Push-in can-end closure with holding means
US3362569A (en) * 1964-08-24 1968-01-09 Joseph A. Geiger Container closures with breakable openings
US3227304A (en) * 1964-09-08 1966-01-04 Charles T Ashury Can opening arrangement
US3341057A (en) * 1964-12-01 1967-09-12 Continental Can Co Easy opening container end
US3355058A (en) * 1965-12-06 1967-11-28 Charles T Asbury Push-in can lid
US3410436A (en) * 1966-09-23 1968-11-12 Anchor Hocking Glass Corp Closure cap with venting means
US3445027A (en) * 1968-01-18 1969-05-20 Jones & Laughlin Steel Corp Easy opening containers
US3575122A (en) * 1968-07-03 1971-04-13 Stanray Corp Methods of constructing a hatch frame and cover therefor
US3552341A (en) * 1968-08-01 1971-01-05 Stanray Corp Method for forming a roof hatch assembly

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929251A (en) * 1972-08-17 1975-12-30 Aluminum Co Of America Container wall with rupturable weakening line
US3980034A (en) * 1973-05-15 1976-09-14 Michael Debenham Method of producing an easy-opening closure
US3888199A (en) * 1973-12-03 1975-06-10 Coors Container Co Method of making a press tab container end from a metallic web
US3886881A (en) * 1973-12-03 1975-06-03 Coors Container Co Method of making a press tab container end from a metallic shell
US3981652A (en) * 1974-08-05 1976-09-21 Usm Corporation Machine for partly coating articles
US3999494A (en) * 1974-08-23 1976-12-28 Toyo Seikan Kaisha Limited Method and apparatus for forming openings in a can end and applying a sealant to the inside surfaces of the openings
JPS5131576A (ja) * 1974-09-10 1976-03-17 Toyo Seikan Kaisha Ltd Kanikaifukanyogaitai no seizohoho
US3935961A (en) * 1974-09-30 1976-02-03 Bennett Robert A Unitary beverage container
US4024980A (en) * 1974-11-08 1977-05-24 Crown Cork & Seal Company, Inc. Easy opening can end having a closure plug
US3980200A (en) * 1975-04-28 1976-09-14 Klein Gerald B Sealant for pushdown gate in a can lid
US3958717A (en) * 1975-08-15 1976-05-25 Jos. Schlitz Brewing Company Lid construction for a container
DE2707064A1 (de) * 1977-02-18 1978-11-16 American Can Co Verfahren zur ausbildung eines oeffnungslappens in blechbehaelter- endverschluessen
DK154269B (da) * 1977-02-24 1988-10-31 American National Can Co Fremgangsmaade til fremstilling af en lap til lukning af en aabning i et metalendelukke.
EP0008191A1 (de) * 1978-08-04 1980-02-20 Michael Fred Joyce Metallischer Behälterverschlussdeckel und Verfahren zu dessen Herstellung
EP0030649A3 (en) * 1979-12-13 1981-12-23 Schmalbach-Lubeca Gmbh Process for the production of lids made of sheet metal, especially sheet iron or steel, for containers, especially cans
EP0030649A2 (de) * 1979-12-13 1981-06-24 Schmalbach-Lubeca AG Verfahren zum Herstellen von Deckeln aus Blech für Behälter, insb. Dosen
US4319692A (en) * 1980-06-23 1982-03-16 Gundlach Roy L Litter free protective beverage can lid
US4723684A (en) * 1983-06-02 1988-02-09 Lambert G Steven Can lid with integral push-in tab
DE3941432A1 (de) * 1989-12-15 1991-06-20 Rasselstein Ag Dosendeckel aus blech, insbesondere fuer dosen, deren inhalt unter innendruck steht, und verfahren zu dessen herstellung
US5769259A (en) * 1994-03-02 1998-06-23 The Broken Hill Proprietary Co Ltd Full-open end panel for container closure
US6131763A (en) * 1999-07-19 2000-10-17 Stanish; Walt Beverage container and dispenser apparatus
US8640905B2 (en) 2005-08-25 2014-02-04 Daniel Robert Gibson Container
US9315290B2 (en) 2005-08-25 2016-04-19 Cml&J, Llc Container
EP3487773A4 (de) * 2016-09-06 2020-03-11 Stolle Machinery Company, LLC Behälterverschluss mit verschobener materiallinie und werkzeug und zugehöriges verfahren zur herstellung eines verschlusses

Also Published As

Publication number Publication date
FR2106562B1 (de) 1976-07-09
DE2146452B2 (de) 1977-01-27
FR2106562A1 (de) 1972-05-05
DE2146452A1 (de) 1972-03-23
JPS5618456B1 (de) 1981-04-28
ZA716200B (en) 1972-05-31
GB1361784A (en) 1974-07-30
CA1060815A (en) 1979-08-21
DE2146452C3 (de) 1979-03-08
BR7106052D0 (pt) 1973-04-26

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