US4083468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuumizing closure for vacuum pack containers
Assignee: Individual
•
Filing: 1977-05-20
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Granted: 1978-04-11
•
Expires: 1997-05-20
Abstract
Abstract A reclosure device for vacuum pack containers and the like, comprised of a diaphragm that seals with the opened end of the container and actuating means therefor to position it axially outward from an initially inward extension into the container, thereby drawing a partial vacuum upon the contents within the said container.
Inventors
- 👤 John Howard Batchelor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
B; B65; B65D; B65D39/00; B65D39/12; B65D81/00; B65D81/18; B65D81/20; B65D81/2007; B65D81/2038
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
62 words
A removable vacuumizing closure for the open perimeter end of a container with content remaining therein and including, a positionable diaphragm with seal means releasably engageable with the perimeter end of the container, and actuating means to releasably position the diaphragm outward from a position toward the interior of the container, whereby a partial vacuum is releasably drawn upon said content therein.
Claim 2
Dependent Claim
62 words
A removable vacuumizing closure for the open perimeter end of a container with content remaining therein and including, a positionable diaphragm with seal means releasably engageable with the perimeter end of the container, and actuating means to releasably position the diaphragm outward from a position toward the interior of the container, whereby a partial vacuum is releasably drawn upon said content therein.
Claim 3
Dependent Claim
49 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the positionable diaphragm is made of an elastomer shaped to the perimeter end of the container and held thereto by differential pressure when the diaphragm is positioned outward from the interior of the container.
Claim 4
Dependent Claim
58 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the perimeter end of the container has an inner wall, and wherein the positionable diaphragm is made of an elastomer shaped to the perimeter end of the container and having an interference fit with said inner wall and held thereto by said vacuum.
Claim 5
Dependent Claim
62 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the perimeter end of the container has an inner wall, and wherein the positionable diaphragm is made of an elastomer shaped to the perimeter end of the container and the seal means having a continuous lip engageable with said inner wall and held thereto by said vacuum.
Claim 6
Dependent Claim
62 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the perimeter end of the container has inner and outer walls joined by a rim, and wherein the positionable diaphragm is made of an elastomer forming the seal means shaped to said inner and outer walls and rim of the container and held thereto by said vacuum.
Claim 7
Dependent Claim
67 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the perimeter end of the container has inner and outer walls joined by a rim, and wherein the positionable diaphragm is made of an elastomer forming the seal means shaped to said inner and outer walls and having a continuous lip engageable with said inner wall and held thereto by said vacuum.
Claim 8
Dependent Claim
38 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the actuating means comprises a cover fitted over the seal means and a piston releasably drawn to the cover by manually operable means.
Claim 9
Dependent Claim
47 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the actuating means comprises a cover carried upon the seal means and having a guide for a piston operable with the diaphragm and releasably drawn to the cover by manually operable means.
Claim 10
Dependent Claim
49 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the actuating means comprises a cover seated over the seal means and a piston positioned outward from said position toward the interior of the container by a manually operable lever bearing against the cover.
Claim 11
Dependent Claim
67 words
The vacuumizing closure for the open end container as set forth in claim 1, wherein the actuating means comprises a cover carried upon the seal means and having a guide for a piston rod operable with a piston portion of the diaphragm and positioned outward from said position toward the interior of the container by a lever operated cam manually shiftable in bearing engagement against the cover.
Claim 12
Dependent Claim
74 words
A removable vacuumizing closure for the open perimeter end of a container with content remaining therein substantially below said perimeter end, and including, a positionable diaphragm integral with and initially extending into the container from seal means releasably engageable with the perimeter end of the container, and actuating means to releasably position the diaphragm outward from said initial position extending into the container, whereby a partial vacuum is releasably drawn upon said content therein.
Claim 13
Dependent Claim
74 words
A removable vacuumizing closure for the open perimeter end of a container with content remaining therein substantially below said perimeter end, and including, a positionable diaphragm integral with and initially extending into the container from seal means releasably engageable with the perimeter end of the container, and actuating means to releasably position the diaphragm outward from said initial position extending into the container, whereby a partial vacuum is releasably drawn upon said content therein.
Claim 14
Dependent Claim
49 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the positionable diaphragm is made of an elastomer shaped to the perimeter end of the container and held thereto by differential pressure when the diaphragm is positioned outward from the interior of the container.
Claim 15
Dependent Claim
72 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the positionable diaphragm is made of an elastomer having a bellows extending into the container proximate to the content substantially below said perimeter end, and the seal means peripherally engaging and supported by said perimeter end of the container and held thereto by differential pressure when the diaphragm is positioned outward from the interior of the container.
Claim 16
Dependent Claim
58 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the perimeter end of the container has an inner wall and wherein the positionable diaphragm is made of an elastomer shaped to the perimeter end of the container and having an interference fit with said inner wall and held thereto by said vacuum.
Claim 17
Dependent Claim
62 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the perimeter end of the container has an inner wall, and wherein the positionable diaphragm is made of an elastomer shaped to the perimeter end of the container and the seal means having a continuous lip engageable with said inner wall and held thereto by said vacuum.
Claim 18
Dependent Claim
62 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the perimeter end of the container has inner and outer walls joined by a rim, and wherein the positionable diaphragm is made of an elastomer forming the seal means shaped to said inner and outer walls and rim of the container and held thereto by said vacuum.
Claim 19
Dependent Claim
67 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the perimeter end of the container has inner and outer walls joined by a rim, and wherein the positionable diaphragm is made of an elastomer forming the seal means shaped to said inner and outer walls and having a continuous lip engageable with said inner wall and held thereto by said vacuum.
Claim 20
Dependent Claim
38 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the actuating means comprises a cover fitted over the seal means and a piston releasably drawn to the cover by manually operable means.
Claim 21
Dependent Claim
47 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the actuating means comprises a cover carried upon the seal means and having a guide for a piston operable with the diaphragm and releasably drawn to the cover by manually operable means.
Claim 22
Dependent Claim
49 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the actuating means comprises a cover seated over the seal means and a piston positioned outward from said position toward the interior of the container by a manually operable lever bearing against the cover.
Claim 23
Dependent Claim
63 words
The vacuumizing closure for the open end container as set forth in claim 11, wherein the actuating means comprises a cover carried upon the seal means and having a guide for a piston rod operable with a piston portion of the diaphragm and positioned toward the interior of the container by a lever operated cam manually shiftable in bearing engagement against the cover.
References Cited (Backward Citations)
US3087641A
Cited
US3756480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |