Patent US3662916A successfully refreshed from Google Patents.
US3662916A
Expired / Lapsed
US
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Easy opening container
Assignee: Continental Can Co Inc
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Filing: 1970-11-23
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Granted: 1972-05-16
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Expires: 1990-11-23
Abstract
Abstract A full panel type of easy opening container having means for increasing the initial opening arc of the score line during upward tilting of the pull tab. The rigidifying means comprises beads arranged to form a rigid panel portion at the rivet so that a bend line occurs behind the rivet upon penetration of the pull tab nose into the container.
Inventors
- 👤 Albert J Holk Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:44
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D17/4011
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
124 words
An easy opening container comprising an end closure having a weakening line defining a removable panel portion, a pull tab having a finger grip portion and a forward portion, a nose on said forward portion, rivet means extending through said forward portion for tiltably attaching said pull on said removable panel portion so that said nose penetrates said weakening line upon lifting of said pull tab, and bend resisting means disposed on opposite sides of said rivet and extending from close proximity to said weakening line to said rivet so that said panel bends along a line passing in close proximity to the inboard side of said rivet upon severance of said weakening line and tilting of said pull tab to an upright position.
Claim 2
Dependent Claim
124 words
An easy opening container comprising an end closure having a weakening line defining a removable panel portion, a pull tab having a finger grip portion and a forward portion, a nose on said forward portion, rivet means extending through said forward portion for tiltably attaching said pull on said removable panel portion so that said nose penetrates said weakening line upon lifting of said pull tab, and bend resisting means disposed on opposite sides of said rivet and extending from close proximity to said weakening line to said rivet so that said panel bends along a line passing in close proximity to the inboard side of said rivet upon severance of said weakening line and tilting of said pull tab to an upright position.
Claim 3
Dependent Claim
23 words
The invention as defined in claim 1 wherein said rigidifying means comprises a pair of beads disposed on opposite sides of the rivet.
Claim 4
Dependent Claim
20 words
The invention as defined in claim 2 wherein said beads extend parallel to the longitudinal axis of the pull tab.
Claim 5
Dependent Claim
40 words
The invention as defined in claim 3 wherein a substantially U-shaped attachment ear is provided in said forwaRd portion, and wherein said rivet is made integral said removable panel portion and extends through an opening formed in said attachment ear.
References Cited (Backward Citations)
US3404801A
Cited
US3591037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |