Patent US3208884A successfully refreshed from Google Patents.
US3208884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensator and relief valve for liquid filled batteries
Assignee: Individual
•
Filing: 1963-03-01
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Granted: 1965-09-28
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Dennis C Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:59
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M50/00; H01M50/30; H01M50/308; H01M50/317; H01M50/325; H01M50/333; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN ELECTROLYTE TYPE BATTERY ADAPTED FOR UNDERWATER OPERATION COMPRISING: A BATTERY CASE HAVING A TOP EQUIPPED WITH ELECTROLYTE FILLER OPENINGS AND TERMINAL POLES, SAID BATTERY CASE TOP BEING POTTED WITH A DIELECTRIC COVERING; PASSAGEWAYS THROUGH SAID COVERING FOR SAID FILLER OPENINGS AND TERMINAL POSTS, A COMBINATION PRESSURE CEMPENSATOR AND RELIEF VALVE AFFIXED TO AND IN WATERTIGHT RELATIONSHIP WITH SAID SAID FILLER OPENING SO THAT EXTERNAL HYDROSTATIC PRESSURE AND INTERNAL CELL PRESSURE WILL EQUALIZE AT ALL DEPTHS AND THE INTERNAL EXCESSIVE ELECTROLYTIC GAS PRESSURE WILL BE AUTOMATICALLY RELIEVED AND A WATERPROOF TERMINAL POLE CONNECTOR AND CONDUCTOR ASSEMBLY AFFIXED TO AND IN WATERTIGHT RELATIONSHIP WITH SAID TERMINAL POLE SO THAT SAID BATTERY CAN BE OPERATED WHILE COMPLETELY IMMERSED.
Claim 2
Dependent Claim
116 words
AN ELECTROLYTE TYPE BATTERY ADAPTED FOR UNDERWATER OPERATION COMPRISING: A BATTERY CASE HAVING A TOP EQUIPPED WITH ELECTROLYTE FILLER OPENINGS AND TERMINAL POLES, SAID BATTERY CASE TOP BEING POTTED WITH A DIELECTRIC COVERING; PASSAGEWAYS THROUGH SAID COVERING FOR SAID FILLER OPENINGS AND TERMINAL POSTS, A COMBINATION PRESSURE CEMPENSATOR AND RELIEF VALVE AFFIXED TO AND IN WATERTIGHT RELATIONSHIP WITH SAID SAID FILLER OPENING SO THAT EXTERNAL HYDROSTATIC PRESSURE AND INTERNAL CELL PRESSURE WILL EQUALIZE AT ALL DEPTHS AND THE INTERNAL EXCESSIVE ELECTROLYTIC GAS PRESSURE WILL BE AUTOMATICALLY RELIEVED AND A WATERPROOF TERMINAL POLE CONNECTOR AND CONDUCTOR ASSEMBLY AFFIXED TO AND IN WATERTIGHT RELATIONSHIP WITH SAID TERMINAL POLE SO THAT SAID BATTERY CAN BE OPERATED WHILE COMPLETELY IMMERSED.
References Cited (Backward Citations)
GB424102A
Cited
US2930828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |