Patent US4433036A successfully refreshed from Google Patents.
US4433036A
Expired / Lapsed
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Multicell reserve battery
Assignee: Northrop Grumman Innovation Systems LLC
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Filing: 1982-03-31
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Granted: 1984-02-21
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Expires: 2002-03-31
Abstract
Abstract A reserve battery having a plurality of galvanic cells and a series of ports through which electrolyte can flow into the cells. A spring activated valve opens the ports during periods of angular acceleration of the battery and closes the ports when there is no acceleration.
Inventors
- 👤 Robert J. Horning
- 👤 William J. Eppley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:18
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
142 words
A reserve battery comprising in combination: a plurality of galvanic cells; a casing housing said plurality of cells, said casing including a wall with a plurality of ports formed therein said ports providing an entry through which an electrolyte can flow in order to activate said cells; a reservoir for electrolyte; a valve having a plurality of ports formed therein; means supporting said valve between said wall and said reservoir to permit relative movement there between; means urging said valve to a position relative to said wall where said wall ports and said valve ports are not aligned when the angular velocity of said battery is constant and permitting angular acceleration of said battery to cause said valve to move relative to said wall so that said valve ports and said wall ports come into alignment during angular acceleration of said battery.
Claim 2
Dependent Claim
142 words
A reserve battery comprising in combination: a plurality of galvanic cells; a casing housing said plurality of cells, said casing including a wall with a plurality of ports formed therein said ports providing an entry through which an electrolyte can flow in order to activate said cells; a reservoir for electrolyte; a valve having a plurality of ports formed therein; means supporting said valve between said wall and said reservoir to permit relative movement there between; means urging said valve to a position relative to said wall where said wall ports and said valve ports are not aligned when the angular velocity of said battery is constant and permitting angular acceleration of said battery to cause said valve to move relative to said wall so that said valve ports and said wall ports come into alignment during angular acceleration of said battery.
Claim 3
Dependent Claim
14 words
A reserve battery as in claim 1 wherein said reservoir is a frangible ampule.
References Cited (Backward Citations)
US2918515A
Cited
US3211588A
Cited
US2787650A
Cited
US3432359A
Cited
US3432360A
Cited
US3507707A
Cited
US3718508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |