US4078696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Containers and closures therefor
Assignee: Polysar Plastics Inc
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Filing: 1977-02-25
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Granted: 1978-03-14
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Expires: 1997-02-25
Abstract
Abstract A closure and container in which the closure has an axial flange which cooperates with the container to lock the closure in closed position, the closure also having an annular recess accommodating a resilient seal for sealing against the container rim. The seal projects from the recess before assembly of closure to container. During assembly, the container compresses the seal into the recess until in the fully closed position, the container engages a seating surface upon the closure, at which point the seal is only partially compressed.
Inventors
- 👤 Victor Eugene Crisci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:33
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; A; A61; A61P; A61P9/00; A61P9/08; A61P9/10; B65D53/00; B65D53/02; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00342; B65D2543/00398; B65D2543/00407; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/005; B65D2543/00537; B65D2543/00555; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796; B65D2543/00953; B65D2543/00962; B65D2543/00972
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
182 words
An assembly of closure and container in which the container has a rim and the closure comprises a container closure portion extending across an opening of the container and an annular rim portion surrounding the closure portion, the rim portion having an axial flange and an annular seating surface facing axially along the flange and extending in a plane substantially normal to the axis of symmetry of the closure, the closure and container each comprising parts of an annular locking device, and the closure being sealingly closed upon the container rim with the parts of the locking device cooperating to retain the closure upon the container and holding the container in positive compressive engagement with the closure solely against the seating surface so that the closure forces are transmitted entirely through the seating surface with the closure immovable upon the container, and the container and closure defining between them an annular chamber containing a resilient seal, said chamber being contiguous with the seating surface and the seal being in a partially compressed state and sealingly engaging both the container and the closure.
Claim 2
Dependent Claim
182 words
An assembly of closure and container in which the container has a rim and the closure comprises a container closure portion extending across an opening of the container and an annular rim portion surrounding the closure portion, the rim portion having an axial flange and an annular seating surface facing axially along the flange and extending in a plane substantially normal to the axis of symmetry of the closure, the closure and container each comprising parts of an annular locking device, and the closure being sealingly closed upon the container rim with the parts of the locking device cooperating to retain the closure upon the container and holding the container in positive compressive engagement with the closure solely against the seating surface so that the closure forces are transmitted entirely through the seating surface with the closure immovable upon the container, and the container and closure defining between them an annular chamber containing a resilient seal, said chamber being contiguous with the seating surface and the seal being in a partially compressed state and sealingly engaging both the container and the closure.
Claim 3
Dependent Claim
71 words
An assembly according to claim 1 wherein the annular chamber is defined partly by an annular recess formed in the closure rim portion, the rim portion defining the recess with an opening which faces axially along the flange, and the resilient seal which, in a normal uncompressed state has a part which projects from the opening, is held with its otherwise projecting part compressed towards the opening by the container rim.
References Cited (Backward Citations)
US3688942A
Cited
US3977563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |