US3822149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable zinc electrochemical energy conversion device
Assignee: EIDP Inc
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Filing: 1972-02-17
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Granted: 1974-07-02
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Expires: 1992-02-17
Abstract
Abstract A RECHARAGEABLE ZINC CELL AND BATTERY, PREFERABLY A ZINCAIR CELL AND BATTERY, ARE DISCLOSED IN WHICH THE CELL COMPRISES (1) A CIRCULAR CASING HAVING A CIRCULAR RESERVOIR WITH ELECTROLYTE CONTAINED THEREIN; (2) A ROTATABLE ELECTRODE, HAVING AT LEAST ONE PLANAR ZINC SURFACE, ENCLOSED COAXIALLY IN THE RESERVOIR; (3) A STATIONARY PLANAR COUNTERELECTRODE SPACED FROM THE ROTATABLE ELECTRODE; (4) MEANS FOR PREVENTING THE ELECTROCHEMICAL REACTION IN THE AXIAL AREA OF THE ZINC SURFACE; (5) WIPER MEANS DISPOSED BETWEEN THE ELECTRODES FOR LIGHTLY ABRADING THE ZINC SURFACE, AND (6) MEANS FOR AGITATING THE ELECTROLYTE TO MAINTAIN PARTICULATE MATTER IN SUSPENSION.
Inventors
- 👤 H Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:54
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/08; H01M10/00; H01M10/42; H01M10/4214; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |