GB1533959A - Method of making container end closures - Google Patents

Method of making container end closures

Info

Publication number
GB1533959A
GB1533959A GB10783/77A GB1078377A GB1533959A GB 1533959 A GB1533959 A GB 1533959A GB 10783/77 A GB10783/77 A GB 10783/77A GB 1078377 A GB1078377 A GB 1078377A GB 1533959 A GB1533959 A GB 1533959A
Authority
GB
United Kingdom
Prior art keywords
tab
panel
bulge
cutting
opening
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
Application number
GB10783/77A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primerica Inc
Original Assignee
American Can Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by American Can Co filed Critical American Can Co
Priority to GB10783/77A priority Critical patent/GB1533959A/en
Publication of GB1533959A publication Critical patent/GB1533959A/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

1533959 Making easy open can end closures AMERICAN CAN CO 15 March 1977 10783/77 Heading B3A A can end closure having an inwardly opening easy-open tab is made from a blank having a plane central panel by forming a bulge, cutting almost completely round the bulge to define a tab, an opening in the panel, and a hinge connecting the tab to the panel, displacing the tab rim below the opening, and reforming the tab to cause it to underlie the panel while holding the tab against displacement relative to the panel in the plane of the panel, whereby to produce a uniform underlap. Fig. 6 shows the bulge/tab BB after two stages of forming and after cutting by dies 84, 81 to leave hinge 24. Reforming dies 84, 88, Fig. 8, then flatten the bulge, and coin the tab at 90, meanwhile holding the tab, to produce uniform underlap at 36, 42. In the embodiment of Fig. 11, shown after cutting, the bulge is reformed by ironing out of a shoulder 165, preferably also with some coining.
GB10783/77A 1977-03-15 1977-03-15 Method of making container end closures Expired GB1533959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10783/77A GB1533959A (en) 1977-03-15 1977-03-15 Method of making container end closures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10783/77A GB1533959A (en) 1977-03-15 1977-03-15 Method of making container end closures

Publications (1)

Publication Number Publication Date
GB1533959A true GB1533959A (en) 1978-11-29

Family

ID=9974190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10783/77A Expired GB1533959A (en) 1977-03-15 1977-03-15 Method of making container end closures

Country Status (1)

Country Link
GB (1) GB1533959A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010130820A1 (en) * 2009-05-14 2010-11-18 Crown Packaging Technology, Inc. Method of forming a can end having a moveable portion
US9016034B2 (en) 2008-09-04 2015-04-28 Crown Packaging Technology, Inc. Easily openable can end, container, and methods of forming
US9199763B2 (en) 2008-01-18 2015-12-01 Crown Packaging Technology, Inc. Can end

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9199763B2 (en) 2008-01-18 2015-12-01 Crown Packaging Technology, Inc. Can end
US9016034B2 (en) 2008-09-04 2015-04-28 Crown Packaging Technology, Inc. Easily openable can end, container, and methods of forming
WO2010130820A1 (en) * 2009-05-14 2010-11-18 Crown Packaging Technology, Inc. Method of forming a can end having a moveable portion
JP2012526713A (en) * 2009-05-14 2012-11-01 クラウン パッケイジング テクノロジー インコーポレイテッド Method for forming a can lid with a movable part

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930315