GB1504204A - Easy opening end unit for a container and method of manufacture thereof - Google Patents

Easy opening end unit for a container and method of manufacture thereof

Info

Publication number
GB1504204A
GB1504204A GB6290/75A GB629075A GB1504204A GB 1504204 A GB1504204 A GB 1504204A GB 6290/75 A GB6290/75 A GB 6290/75A GB 629075 A GB629075 A GB 629075A GB 1504204 A GB1504204 A GB 1504204A
Authority
GB
United Kingdom
Prior art keywords
tab
panel
boss
score
cut
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
GB6290/75A
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.)
Continental Group Inc
Original Assignee
Continental Group Inc
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 Continental Group Inc filed Critical Continental Group Inc
Publication of GB1504204A publication Critical patent/GB1504204A/en
Expired legal-status Critical Current

Links

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
    • 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

Landscapes

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

Abstract

1504204 Easy-open containers CONTINENTAL GROUP Inc 14 Feb 1975 [14 Feb 1974] 6290/75 Heading B8D [Also in Division B3] An easy-open can end 10 comprises an end panel 11 having a push-in tab 17 which is cut from the panel except at a minor portion defined by a score 18 partially surrounding a headed boss or rivet 40 formed in the tab whose head is larger than the distance between opposed arcuate edge portions 21<SP>1</SP> and 22<SP>1</SP> of the cut panel adjacent the score such that, on manual depression of the boss and the resultant rupture of the score, the tab is separated from the end panel but is captively retained on the can end by engagement of the boss head with edge portions 21<SP>1</SP> and 22<SP>1</SP> for pivotal movement to one side of the formed opening about an axis passing transverse of the end panel through the opening. The arcuate edge portions 21<SP>1</SP> and 22<SP>1</SP> of the cut panel define a waisted configuration preventing lateral movement of the tab on rupture of the score. The can end is made by firstly dishing the end panel at 50 and forming a boss depression 51 therein, Figs. 2a and 2b (not shown), followed by shaping the boss depression to substantially cylindrical boss form, Figs. 3a and 3b (not shown). Thereafter, a cut 54 and score 18 is made in the end panel to define the tab, the cut being made in the dishing to define an upstanding end panel edge around the tab, which edge is subsequently flattened over the tab edge to form a lapped joint, Figs. 4 and 5. Finally, the head is formed on the boss, and the can end completed by applying a sealing compound S on the underside of the panel over at least the lapped panel tab joint, Figs. 6 and 7 (not shown).
GB6290/75A 1974-02-14 1975-02-14 Easy opening end unit for a container and method of manufacture thereof Expired GB1504204A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US442453A US3915333A (en) 1974-02-14 1974-02-14 Easy opening end unit

Publications (1)

Publication Number Publication Date
GB1504204A true GB1504204A (en) 1978-03-15

Family

ID=23756839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6290/75A Expired GB1504204A (en) 1974-02-14 1975-02-14 Easy opening end unit for a container and method of manufacture thereof

Country Status (4)

Country Link
US (1) US3915333A (en)
CA (1) CA1018915A (en)
GB (1) GB1504204A (en)
HK (1) HK18880A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023703A (en) * 1975-05-27 1977-05-17 Strobe Carl J Easy-open container with flange push-in member
US4003493A (en) * 1975-05-27 1977-01-18 Wells Robert A Easy-open container with nondetachable opening member
US4122970A (en) * 1977-03-16 1978-10-31 Arnaldo Amabili Tamper-proof container with attached end closure
US4054228A (en) * 1977-04-01 1977-10-18 American Can Company Can end closure having first and second sealing means
NL7807892A (en) * 1977-07-28 1979-01-30 Tokan Kogyo Co Ltd COVER FOR A HOLDER FITTED WITH A PLASTIC PART THAT CAN BE OPENED, AND METHOD FOR MAKING SUCH A COVER.
US5921425A (en) * 1997-07-02 1999-07-13 Markey; Victor S. Container cap with spring loaded cover

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2261117A (en) * 1939-06-09 1941-11-04 Us Can Corp Closure member and method of preparing same
US3731836A (en) * 1972-03-17 1973-05-08 Fraze Ermal C Container wall with connector for retaining the tab and tear portion on the container wall
US3813000A (en) * 1972-04-24 1974-05-28 R Underwood Can end construction

Also Published As

Publication number Publication date
HK18880A (en) 1980-04-18
US3915333A (en) 1975-10-28
CA1018915A (en) 1977-10-11

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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