GB1347737A - Easy opening can ends and method of forming such ends - Google Patents

Easy opening can ends and method of forming such ends

Info

Publication number
GB1347737A
GB1347737A GB5796971A GB5796971A GB1347737A GB 1347737 A GB1347737 A GB 1347737A GB 5796971 A GB5796971 A GB 5796971A GB 5796971 A GB5796971 A GB 5796971A GB 1347737 A GB1347737 A GB 1347737A
Authority
GB
United Kingdom
Prior art keywords
scoreline
tear
ledge
out portion
thickness
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
GB5796971A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1347737A publication Critical patent/GB1347737A/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
    • B65D17/4012—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 for opening partially by means of a tearing tab
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/906—Beverage can, i.e. beer, soda

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)

Abstract

1347737 Making cam ends E C FRAZE 14 Dec 1971 [31 Dec 1970] 57969/71 Headings B3A B3J and B3Q [Also in Division B8] A method of forming an easy-opening can end 11 comprises coining the end wall 16 of the can end to form shoulders and/or beads immediately adjacent to and on opposite sides of a scoreline 21 defining only a partially removable tear-out portion 15 in order to protect a consumer from injury on the edge of both the tear-out portion and the opening formed. In the embodiment shown, the end wall is coined between a die 41, having inner and outer recesses 45 and 43, and a coining tool 47 to form an inwardly offset tear-out-forming portion 15a and an intermediate offset thinned ledge 27. The line 21 is then scored in the ledge between the offsetting shoulders 35 and 37 by means of a scoring tool 57 and punch 59, the latter acting to stretch the offsetting shoulder 37 on scoring. The shoulders 35 and 37 are formed close to the scoreline, i.e. 0À015 inch, and act as guards for the edges formed on rupture of the scoreline. The thickness of the thinned ledge is 0À008 inch when using a can end stock thickness of 0À0135 inch and the scoreline penetrates to a depth of approximately half the ledge thickness. The scoreline terminates in oppositely and outwardly curved ends 23 to prevent complete detachment of the tear-out portion from the can end. A pull tab 19 is secured to the tear-out portion by an integral rivet 17, Fig. 4 (not shown), and the end wall at the base of the rivet is coplanar with, and of the same thickness as, the ledge to permit continuity of the scoreline. In other embodiments, Figs. 7-9, Fig. 10; Figs. 11 and 12, and Figs. 13-14, the guard arrangements are formed by ribs 141 and 143, or 241 and 243, or 341 and 343 coined in the can end on either side of the scoreline. In another embodiment, Figs. 15 and 16 (not shown), an offsetting portion 437 of an inwardly coined tear-out portion and a bead 441 extending outwardly of and around the scoreline 423 provide guard arrangements for the subsequently formed edges when the tear portion is removed.
GB5796971A 1970-12-31 1971-12-14 Easy opening can ends and method of forming such ends Expired GB1347737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10325570A 1970-12-31 1970-12-31

Publications (1)

Publication Number Publication Date
GB1347737A true GB1347737A (en) 1974-02-27

Family

ID=22294208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5796971A Expired GB1347737A (en) 1970-12-31 1971-12-14 Easy opening can ends and method of forming such ends

Country Status (11)

Country Link
US (1) US3757989A (en)
JP (1) JPS5420906B1 (en)
AU (1) AU464882B2 (en)
CA (1) CA992013A (en)
DK (1) DK131813C (en)
FR (1) FR2119983B1 (en)
GB (1) GB1347737A (en)
IT (1) IT944665B (en)
NL (1) NL159057B (en)
SE (1) SE378580B (en)
ZA (1) ZA718271B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900128A (en) * 1973-03-30 1975-08-19 Fraze Ermal C Easy open can end resistant to pressure
US3868919A (en) * 1973-12-06 1975-03-04 Aluminum Co Of America Method and apparatus for forming easy opening container walls
US3912113A (en) * 1974-11-08 1975-10-14 Continental Can Co Coined end panel
US3934750A (en) * 1974-11-08 1976-01-27 Continental Can Company, Inc. Non-detachable end unit
JPS59156528A (en) * 1983-02-25 1984-09-05 Hokkai Can Co Ltd Scoring method of easily openable container cover
DE3514943A1 (en) * 1985-04-25 1986-10-30 Virgunia Verpackung Inh. Herr Fidelis Frank, 8000 München PACKAGING
US4705186A (en) * 1986-11-19 1987-11-10 The Coca-Cola Company Can end assembly
CN1029106C (en) * 1993-04-29 1995-06-28 范国伟 Seal of container cover
US20030038134A1 (en) * 2001-01-08 2003-02-27 Chasteen Howard C. Small opening beverage can end adapted for receiving a straw
US6761281B2 (en) 2002-11-26 2004-07-13 Rexam Beverage Can Company Modified score for smooth openability
US8608006B2 (en) 2006-01-14 2013-12-17 World Bottling Cap, LLC Bottle crown
CN201010114Y (en) * 2006-12-26 2008-01-23 朴成日 Environment friendly tank
WO2010085888A1 (en) * 2009-01-29 2010-08-05 Novelis Inc. Score line corrosion protection for container end walls
US20100213194A1 (en) * 2009-02-21 2010-08-26 Junsong Liu Pop Can Beak Spout Design
US20110030588A1 (en) * 2009-08-07 2011-02-10 Jim Baechle Pallet for bulk bags and the like
MA50342A (en) * 2017-04-20 2020-08-19 Dionysios Pavlatos LIQUID PRODUCT PACKAGING CAPSULES
ES2709215R1 (en) * 2019-03-20 2019-05-16 Valencia Juan Gonzalez New tongue and ring for the opening of beverage cans

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1510910A1 (en) * 1962-11-13 1969-07-10 Scragg & Sons Cord or thread as an insert in molded parts
US3404800A (en) * 1966-09-15 1968-10-08 Reynolds Metals Co Opening means for a container
US3462042A (en) * 1967-01-13 1969-08-19 Stolle Corp Tear top can with captive tear strip
US3480175A (en) * 1967-03-17 1969-11-25 Continental Can Co Single pull ring tab
US3425591A (en) * 1967-04-27 1969-02-04 William A Pugh Sr Container with tear out closure
US3442416A (en) * 1967-06-19 1969-05-06 Continental Can Co Container having lip protecting means

Also Published As

Publication number Publication date
AU464882B2 (en) 1975-09-11
US3757989A (en) 1973-09-11
AU3648171A (en) 1973-06-07
FR2119983B1 (en) 1975-02-21
IT944665B (en) 1973-04-20
NL7117059A (en) 1972-07-04
NL159057B (en) 1979-01-15
DK131813C (en) 1976-02-09
DE2165055A1 (en) 1972-07-13
SE378580B (en) 1975-09-08
JPS5420906B1 (en) 1979-07-26
DK131813B (en) 1975-09-08
FR2119983A1 (en) 1972-08-11
ZA718271B (en) 1972-08-30
DE2165055B2 (en) 1976-11-18
CA992013A (en) 1976-06-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee