Patent US3801818A successfully refreshed from Google Patents.
Patent US4465189A successfully refreshed from Google Patents.
US4465189A
Expired / Lapsed
US
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Waterproof container
Assignee: Mission Systems Davenport Inc
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Filing: 1983-04-11
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Granted: 1984-08-14
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Expires: 2003-04-11
Abstract
Abstract A self-venting waterproof container includes upper and lower waterproof body portions along with a sealing mechanism to effect a seal therebetween. A pressure relief valve provides venting communication between the interior of the container and the environment in which the container is used when there is a differential in environmental pressure and the pressure in the interior of the container. A vacuum relief valve eliminates, when opened, any vacuum existing in the interior of the container. Deformable material used for the body portions allows the container to collapse around the equipment therein under environmental pressure.
Inventors
- 👤 Albert R. Molzan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:33
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/16; B65D51/1633; B65D51/1644; B65D81/00; B65D81/24; Y; Y10; Y10S; Y10S206/00; Y10S206/811
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
116 words
A ruggedized self-venting waterproof container adapted for military use over a wide range of environmental conditions, comprising: an upper waterproof body portion adapted to hold military equipment; a lower waterproof body portion adapted to hold military equipment; sealing means for effecting a seal between said body portions; pressure venting means for providing venting communication between the interior of said container and the environment in which said container is used when there is a differential in the pressure of said environment and the pressure in said interior; and vacuum relief means for eliminating, when open, any vacuum established in said interior, whereby said container may be alternatively subjected to both high altitude and deep submersion without leaking.
Claim 2
Dependent Claim
116 words
A ruggedized self-venting waterproof container adapted for military use over a wide range of environmental conditions, comprising: an upper waterproof body portion adapted to hold military equipment; a lower waterproof body portion adapted to hold military equipment; sealing means for effecting a seal between said body portions; pressure venting means for providing venting communication between the interior of said container and the environment in which said container is used when there is a differential in the pressure of said environment and the pressure in said interior; and vacuum relief means for eliminating, when open, any vacuum established in said interior, whereby said container may be alternatively subjected to both high altitude and deep submersion without leaking.
Claim 3
Dependent Claim
23 words
A container as defined in claim 1, wherein: said body portions each comprise deformable material whereby said container may collapse under environmental pressure.
Claim 4
Dependent Claim
14 words
A container as defined in claim 2, wherein: said waterproof material comprises molded rubber.
Claim 5
Dependent Claim
15 words
A container as defined in claim 2, wherein: p1 said waterproof material comprises rubberized fabric.
Claim 6
Dependent Claim
73 words
A container as defined in claim 1, wherein said sealing means comprises: first rim means attached to said upper body portion, said first rim having a channel therein; second rim means attached to said said lower body portion, said second rim means having a flange adapted to engage said channel; and gasket means disposed in said channel adjacent said flange whereby a waterproof seal is formed between said first and second rim means.
Claim 7
Dependent Claim
20 words
A container as defined in claim 5, wherein said first and second rim means each comprise an extruded aluminum member.
Claim 8
Dependent Claim
20 words
A container as defined in claim 5, wherein said first and second rim means each comprise a rigid plastic member.
Claim 9
Dependent Claim
14 words
A container as defined in claim 5, wherein said gasket means comprises an o-ring.
Claim 10
Dependent Claim
29 words
A container as defined in claim 1, wherein said pressure venting means comprises: a pressure relief valve disposed to communicate between said interior of said container and said environment.
Claim 11
Dependent Claim
31 words
A container as defined in claim 1, wherein said vacuum relief means comprises: manually operable valve means for establishing communication, when open, between said interior of said container and the atmosphere.
Claim 12
Dependent Claim
25 words
A container as defined in claim 1, wherein said container further comprises: latch means for attaching said upper body portion to said lower body portion.
Claim 13
Dependent Claim
55 words
A container as defined in claim 11, wherein: said latch means comprises a plurality of toggle switches disposed about the periphery of said upper body portion and adapted to engage said lower body portion, whereby said engagement draws said body portions together to allow said sealing means to effect a seal between said body portions.
Claim 14
Dependent Claim
117 words
A submersible, pressure-venting and rugged waterproof case adapted for military use over a wide range of environmental conditions, comprising: a collapsible waterproof casing comprising a first casing half and a second casing half; first flange means, attached to said first casing half; second flange means, attached to said second casing half and adapted to engage said first casing half; latch means, disposed on said first and second flange means, for attaching said first casing half and said second casing half; and automatic pressure relief valve means for relieving pressure from the interior of said case in response to changes in environmental pressure, whereby said casing may be subjected to both high altitude and deep submersion without leaking.
Claim 15
Dependent Claim
117 words
A submersible, pressure-venting and rugged waterproof case adapted for military use over a wide range of environmental conditions, comprising: a collapsible waterproof casing comprising a first casing half and a second casing half; first flange means, attached to said first casing half; second flange means, attached to said second casing half and adapted to engage said first casing half; latch means, disposed on said first and second flange means, for attaching said first casing half and said second casing half; and automatic pressure relief valve means for relieving pressure from the interior of said case in response to changes in environmental pressure, whereby said casing may be subjected to both high altitude and deep submersion without leaking.
Claim 16
Dependent Claim
29 words
A case as defined in claim 13, wherein said case further comprises: gasket means, disposed between said first and second flange means, for insuring a waterproof seal there between.
Claim 17
Dependent Claim
31 words
A case as defined in claim 13, wherein said case further comprises: manually operable vacuum release means, for eliminating, when manually operated, any vacuum established in the interior of said case.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |