Patent US2160078A successfully refreshed from Google Patents.
Patent US4218967A successfully refreshed from Google Patents.
US4218967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum pump closure for canisters and vacuum pack containers
Assignee: Individual
•
Filing: 1979-06-25
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Granted: 1980-08-26
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Expires: 1999-06-25
Abstract
Abstract A closure device for canisters and a reclosure for vacuum pack containers and comprised of a removeable diaphragm that seals with the opened end of the container and a cover overlying the diaphragm to form a pump chamber therebetween, there being actuating means to axially reciprocate the diaphragm relative to the cover, and check valves in the diaphragm and cover for drawing a high vacuum upon the contents within the said container, and with means to release said vacuum.
Inventors
- 👤 John H. Batchelor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:18
CPC Classifications
B; B65; B65D; B65D39/00; B65D39/12; B65D81/00; B65D81/18; B65D81/20; B65D81/2007; B65D81/2038
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
107 words
A removable vacuum pump closure for the open perimeter end of a container with content therein and including, a moveable diaphragm with seal means releasably engageable with the perimeter end of the container, a cover overlying the diaphragm and attached at its perimeter thereto forming a pump chamber therebetween, inlet check valve means opening upwardly through the diaphragm, outlet check valve means opening upwardly through the cover, and actuating means comprising a piston rod extending through the pump chamber and cover for operation at the exterior to reciprocate the diaphragm relative to the cover whereby a partial vacuum is increasingly drawn upon said container and content therein.
Claim 2
Dependent Claim
107 words
A removable vacuum pump closure for the open perimeter end of a container with content therein and including, a moveable diaphragm with seal means releasably engageable with the perimeter end of the container, a cover overlying the diaphragm and attached at its perimeter thereto forming a pump chamber therebetween, inlet check valve means opening upwardly through the diaphragm, outlet check valve means opening upwardly through the cover, and actuating means comprising a piston rod extending through the pump chamber and cover for operation at the exterior to reciprocate the diaphragm relative to the cover whereby a partial vacuum is increasingly drawn upon said container and content therein.
Claim 3
Dependent Claim
35 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein the diaphragm is depressible and shaped over a rim of the container and held thereto by the increasing vacuum.
Claim 4
Dependent Claim
30 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein the cover comprises a rigid plate sealed at its perimeter to the attached diaphragm.
Claim 5
Dependent Claim
43 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein at least one of the check valves comprises a valve element seated upon a seal within a cage limiting movement of the valve element within operative confines.
Claim 6
Dependent Claim
36 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein at least one of the check valves comprises a flexible strap valve element seated upon a face of the diaphragm.
Claim 7
Dependent Claim
68 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein one of said check valves comprises a ball element seated on a seal within operative confines at the cover, and wherein the other one of said check valves comprises a flexible strap valve element seated upon a base of the diaphragm to seal thereupon within the operative confines of the pump chamber.
Claim 8
Dependent Claim
45 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein the check valve opening upwardly through the diaphragm comprises a strap of elastic extending over a port through the diaphragm and anchored at its ends diametrically of the port.
Claim 9
Dependent Claim
62 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein the check valve opening upwardly through the diaphragm comprises a strap of elastic extending over a port through the diaphragm and anchored at its diametrically opposite ends and by means of a pair of diametrically spaced tits projecting therefrom and into anchor holes in the diaphragm.
Claim 10
Dependent Claim
47 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein the piston rod of the actuator means is operable by lever means at the exterior of the cover to reciprocate the diaphragm through a piston connected thereto within said pump chamber.
Claim 11
Dependent Claim
57 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein the piston rod of the actuator means extends through a gland in the cover and is operable by lever operated cam means at the exterior of the cover to reciprocate the diaphragm through a piston connected thereto within said pump chamber.
Claim 12
Dependent Claim
40 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein a relief valve means extends through the cover to be manually operable at the exterior thereof to release atmospheric pressure to enter the container.
Claim 13
Dependent Claim
45 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein a relief valve means extends from the moveable diaphragm and through the cover to be manually operable at the exterior thereof to release atmospheric pressure to enter the container.
Claim 14
Dependent Claim
54 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein a relief valve means extends through the cover and comprises a tube and a spring biased check valve element seated upwardly against a seal and depressible therefrom by a stem manually engagable at the exterior of the cover.
Claim 15
Dependent Claim
83 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein a relief valve means extends from the moveable diaphragm and through the cover and comprises a tube and a check valve element seated upon a seal within a cage formed in the tube and limiting movement of the valve element adapted to be lifted from the seal by a stem extending therefrom and through the tube to the exterior for releasing atmospheric pressure to enter the container.
Claim 16
Dependent Claim
61 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein a relief valve means extends from the moveable diaphragm and through the cover and comprises a tube and a manually operable cap normally sealed with the tube and held thereto by loose threads is adapted to release atmospheric pressure to enter the container when loosened.
Claim 17
Dependent Claim
37 words
The vacuum pump closure for the open end container as set forth in claim 1, wherein the seal is a depressible member surrounding the diaphragm and spaced therefrom and shaped to the perimeter end of the container.
Claim 18
Dependent Claim
102 words
A releasable vacuum pump closure for the open perimeter end of a canister with content therein and including, a moveable diaphragm with seal means releasably engageable with a rim of the canister, a cover overlying the diaphragm and attached at its perimeter thereto forming a pump chamber therebetween, check valve means opening upwardly through the diaphragm and cover respectively, actuating means to reciprocate the diaphragm relative to the cover whereby a partial vacuum is increasingly drawn upon said canister and content therein, and a normally closed relief valve means through a wall of the canister to release atmospheric pressure to enter therein.
Claim 19
Dependent Claim
102 words
A releasable vacuum pump closure for the open perimeter end of a canister with content therein and including, a moveable diaphragm with seal means releasably engageable with a rim of the canister, a cover overlying the diaphragm and attached at its perimeter thereto forming a pump chamber therebetween, check valve means opening upwardly through the diaphragm and cover respectively, actuating means to reciprocate the diaphragm relative to the cover whereby a partial vacuum is increasingly drawn upon said canister and content therein, and a normally closed relief valve means through a wall of the canister to release atmospheric pressure to enter therein.
Claim 20
Dependent Claim
36 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the diaphragm is depressible and shaped over a rim of the canister and held thereto by the increasing vacuum.
Claim 21
Dependent Claim
31 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the cover comprises a rigid plate sealed at its perimeter to the attached diaphragm.
Claim 22
Dependent Claim
36 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein at least one of the check valves comprises a flexible valve element seated upon a face of the diaphragm.
Claim 23
Dependent Claim
44 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein at least one of the check valves comprises a valve element seated upon a seal within a cage limiting movement of the valve element within operative confines.
Claim 24
Dependent Claim
50 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein at least one of the check valves comprises a ball element seated on a seal within a cage limiting movement of the ball element within operative confines at the diaphragm and cover respectively.
Claim 25
Dependent Claim
69 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein one of said check valves comprises a ball element seated on a seal within operative confines at the cover, and wherein the other one of said check valves comprises a flexible strap valve element seated upon a base of the diaphragm to seal thereupon within the operative confines of the pump chamber.
Claim 26
Dependent Claim
46 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the check valve opening upwardly through the diaphragm comprises a strap of elastic extending over a port through the diaphragm and anchored at its ends diametrically of the port.
Claim 27
Dependent Claim
63 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the check valve opening upwardly through the diaphragm comprises a strap of elastic extending over a port through the diaphragm and anchored at its diametrically opposite ends and by means of a pair of diametrically spaced tits projecting therefrom and into anchor holes in the diaphragm.
Claim 28
Dependent Claim
46 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the actuating means comprises a piston rod extending through the cover and operable at the exterior to reciprocate the diaphragm through a piston connected thereto within said pump chamber.
Claim 29
Dependent Claim
49 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the actuator means comprises a piston rod extending through the cover and operable by lever means at the exterior to reciprocate the diaphragm through a piston connected thereto within said pump chamber.
Claim 30
Dependent Claim
54 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the actuator means comprises a piston rod extending through a gland in the cover and operable by lever operated cam means at the exterior to reciprocate the diaphragm through a piston connected thereto within said pump chamber.
Claim 31
Dependent Claim
51 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the relief valve means comprises a manually rotatable screw accessible at the exterior of the canister wall and with a bleed opening and surrounding seal engaged with said wall when said screw is tightened.
Claim 32
Dependent Claim
38 words
The releasable vacuum pump closure for the open end canister as set forth in claim 17, wherein the seal is a depressible member surrounding the diaphragm and spaced therefrom and shaped to the perimeter end of the container.
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) | 1983-08-26 | 1984-02-25 | 1984-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-26 | 1988-02-25 | 1988-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-26 | 1992-02-25 | 1992-08-26 | $7700.00 | Window Closed / Lapsed |