US3809280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closures for containers
Assignee: Cato Oil and Grease Co Inc
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Filing: 1972-02-22
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Granted: 1974-05-07
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Expires: 1992-02-22
Abstract
Abstract The present invention relates to improvements in a closure for the opening in a container, said opening having a rim thereabout. The closure comprises a panel section and a first depending integral flange projecting from the panel section defining a socket adapted to snugly receive the container rim. The improvements include a second flange depending from the panel section, coextensive with the first flange and in an inwardly spaced parallel relation thereto. The flanges define a container rim receiving channel about the closure and include an air release means formed in the flanges to enable release of trapped air as the closure is mounted on the container.
Inventors
- 👤 W Park
- 👤 L Oswalt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/16; B65D51/1672; B65D51/1688
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
In a closure for a container opening having a rim about the opening, wherein the closure comprises a panel section and a first depending integral flange projecting from the panel section having an inner face defining a socket adapted to snugly receive the container rim, the improvements which comprise: a second depending integral flange on the panel section having an outer face coextensive with the first flange and projecting from the panel in inwardLy spaced parallel relation thereto, said flanges defining a container rim receiving channel about the closure, and air release means formed in said flanges for enabling release of trapped air as the closure is mounted on the container, said air release means comprising at least one groove in the outer face of the second flange and a pair of laterally spaced ribs on the inner face of the first flange in opposed relation to said groove, said ribs being generally aligned with the opposed edges of the groove.
Claim 2
Dependent Claim
161 words
In a closure for a container opening having a rim about the opening, wherein the closure comprises a panel section and a first depending integral flange projecting from the panel section having an inner face defining a socket adapted to snugly receive the container rim, the improvements which comprise: a second depending integral flange on the panel section having an outer face coextensive with the first flange and projecting from the panel in inwardLy spaced parallel relation thereto, said flanges defining a container rim receiving channel about the closure, and air release means formed in said flanges for enabling release of trapped air as the closure is mounted on the container, said air release means comprising at least one groove in the outer face of the second flange and a pair of laterally spaced ribs on the inner face of the first flange in opposed relation to said groove, said ribs being generally aligned with the opposed edges of the groove.
Claim 3
Dependent Claim
24 words
The closure of claim 1 wherein said groove and ribs extend transversely of the flanges and terminate in spaced relation to said panel section.
Claim 4
Dependent Claim
28 words
The closure of claim 2 including an outwardly directed projection on the outer wall of the second flange between the end of the groove and the panel section.
Claim 5
Dependent Claim
25 words
The closure of claim 2 wherein said channel narrows inwardly toward said panel section to effect a progressively greater engagement with an introduced container rim.
Claim 6
Dependent Claim
49 words
The closure of claim 4 wherein the narrowing channel is defined by the outer face of the second flange tapering slightly away from the inner face of the first flange outward from said panel section, the inner face of the first flange being generally perpendicular to the panel section.
Claim 7
Dependent Claim
25 words
The closure of claim 1 wherein said channel narrows inwardly toward said panel section to effect a progressively greater engagement with an introduced container rim.
Claim 8
Dependent Claim
59 words
The closure of claim 6 wherein said first and second flanges include inner and outer faces, the narrowing channel is defined by the outer face of the second flange tapering slightly away from the inner face of the first flange outward from said panel section, the inner face of the first flange being generally perpendicular to the panel 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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |