US3741432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container with closure tab and pressure release tab on closure tab
Assignee: Coors Container Co
•
Filing: 1972-01-20
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Granted: 1973-06-26
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Expires: 1992-01-20
Abstract
Abstract A beverage container having an end or lid provided with an opening which serves as a pour opening, a pressure release vent and an air intake opening. The opening is covered by a depressible closure tab separable from the container end except at a hinge portion integrally connected to the container end. A pressure release vent tab, smaller in area than the closure tab, is located on the closure tab and hingedly connected to said closure tab. Manual pressure applied to the pressure release vent tab and transferred to the closure tab separates the release tab from the closure tab to open the release vent and facilitate easy separation of the closure tab from the container end to expose the opening in the end for simultaneous discharge of container contents and admission of air into the container. The pressure release tab may also function as a vacuum release means.
Inventors
- 👤 E Werth
- 👤 N Sipe
- 👤 R Pearce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:50
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D2205/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
A beverage container having an end provided with an opening that is a pour opening, a pressure release vent and an air intake, comprising a. a depressible closure tab covering the opening in the container end separable from the container end except at a hinge portion, b. a hinge integral with the closure tab and container end, and c. a pressure release vent tab smaller in area than the closure tab located on the closure tab and hingedly connected to said closure tab, said release vent tab being depressible by manually applied pressure to expose part of the opening in the container end and to release pressure from the container, and the closure tab being depressible by said manually applied pressure to expose the opening for simultaneous pouring of the container contents and admission of the air into the container.
Claim 2
Dependent Claim
140 words
A beverage container having an end provided with an opening that is a pour opening, a pressure release vent and an air intake, comprising a. a depressible closure tab covering the opening in the container end separable from the container end except at a hinge portion, b. a hinge integral with the closure tab and container end, and c. a pressure release vent tab smaller in area than the closure tab located on the closure tab and hingedly connected to said closure tab, said release vent tab being depressible by manually applied pressure to expose part of the opening in the container end and to release pressure from the container, and the closure tab being depressible by said manually applied pressure to expose the opening for simultaneous pouring of the container contents and admission of the air into the container.
Claim 3
Dependent Claim
42 words
The container defined by claim 1, in which the closure tab is elongated in a radial direction and the hinge connecting the closure tab to the container end is located at the closure tab end nearest the center of the container end.
Claim 4
Dependent Claim
31 words
The container defined by claim 1, in which the pressure release vent tab is located on the closure tab adjacent the hinge which connects the closure tab to the container end.
Claim 5
Dependent Claim
31 words
The container defined by claim 2, in which the pressure release vent tab is located on the closure tab adjacent the hinge which connects the closure tab to the container end.
Claim 6
Dependent Claim
35 words
The container defined by claim 1, in which the part of the release vent tab which is hingedly connected to the closure tab merges into the hinge integral with the closure tab and container end.
Claim 7
Dependent Claim
38 words
The container defined by claim 1, in which the closure tab is circular in form and separable from the container end on a generally circular line interrupted by the hinge integral with the closure tab and container end.
Claim 8
Dependent Claim
28 words
The container defined by claim 2, in which the end of the elongated closure tab opposite the hinged end is located adjacent the rim of the container end.
Claim 9
Dependent Claim
42 words
The container defined by claim 1, in which the container end has a sealant coating or patch applied to its under side to underlie the closure tab and release vent tab and maintain them in container sealing relationship to the container end.
Claim 10
Dependent Claim
33 words
The container defined by the claim 1, in which the upper surface of the release vent tab is in a plane slightly above the plane of the exposed surface of the closure tab.
References Cited (Backward Citations)
US2261117A
Cited
US3227304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |