Patent US3143748A successfully refreshed from Google Patents.
Patent US4130219A successfully refreshed from Google Patents.
US4130219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bead supported tab for non-detachable ends
Assignee: Continental Group Inc
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Filing: 1977-11-21
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Granted: 1978-12-19
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Expires: 1997-11-21
Abstract
Abstract A tab for an easy open end which comprises a rivet securing the tab intermediate its ends to the end panel, the tab having a nose end which is adapted to be pressed downwardly upon lifting of the opposite lift end of the tab against a tear-out portion of the end panel and to push the same inwardly. The invention is directed to forming the nose and the lift end of the tab in such manner that both ends of the tab are maintained in constant contact with the container end while it is attached intermediate its ends to the container end panel in order to prevent rocking of the tab and thus producing a fatigue failure in the scored area which is adjacent the tab.
Inventors
- 👤 Salvador C. Mallorca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:31
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D17/4012
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
153 words
A one-piece sheet metal tab suitable for levering open a tear panel on an end wall of an easy open container, said tab having a rear end spaced above the end panel for easy accessibility and adapted to be lifted to open a tear panel and a front end adapted to be pressed down on the tear panel and a hinge member extending substantially lengthwise of the tab between its ends and hingedly connected at one end to said front end of the tab, and having means on the other end for attachment to the end wall, and means at the extreme opposite ends of the tab in constant abutment with the end panel for holding the tab firmly against the end panel upon securement of the tab thereto for preventing rocking movement of the tab about a transverse axis and thereby flexing of the end panel and premature fracturing of the same.
Claim 2
Dependent Claim
153 words
A one-piece sheet metal tab suitable for levering open a tear panel on an end wall of an easy open container, said tab having a rear end spaced above the end panel for easy accessibility and adapted to be lifted to open a tear panel and a front end adapted to be pressed down on the tear panel and a hinge member extending substantially lengthwise of the tab between its ends and hingedly connected at one end to said front end of the tab, and having means on the other end for attachment to the end wall, and means at the extreme opposite ends of the tab in constant abutment with the end panel for holding the tab firmly against the end panel upon securement of the tab thereto for preventing rocking movement of the tab about a transverse axis and thereby flexing of the end panel and premature fracturing of the same.
Claim 3
Dependent Claim
29 words
The invention according to claim 1 and said means comprising a panelwardly directed portion on said front end and a projecting nib on the rear end of the tab.
Claim 4
Dependent Claim
53 words
The invention according to claim 1 and said means comprising a panelwardly directed portion on said front end and a projecting nib on the rear end of the tab and located inwardly from the terminal portion of said rear end in a position for defining an unobstructed finger-accommodating space with the end panel.
Claim 5
Dependent Claim
55 words
The invention according to claim 3 and said rear end of the tab comprising laterally spaced upwardly bent wing portions and said tab having a substantially flat body section terminating longitudinally inwardly of said wing portions, and said nib being formed on said body portion in longitudinal alignment with the space between said wing portions.
Claim 6
Dependent Claim
52 words
The invention according to claim 1 and said means comprising a panelwardly directed portion on the front end and a similarly projecting nib on the rear end of the tab and said rear end having outwardly extending end portions, and said nib located lengthwise of the tab inwardly of said end portions.
Claim 7
Dependent Claim
19 words
The invention according to claim 5 and said nib being substantially centered between the lateral sides of said tab.
Claim 8
Dependent Claim
29 words
The invention according to claim 1 and said tab having a thin body section and said means at one end of the tab being formed on the body section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |