US3479226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of chemically regenerating air depolarized cell with hydrogen
Assignee: Leesona Corp
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Filing: 1966-07-22
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Granted: 1969-11-18
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Expires: 1986-07-22
Abstract
No abstract record available.
Inventors
- 👤 Harry G Oswin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:04
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04; H01M12/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF CHEMICALLY RECHARGING A METAL/AIR BATTERY DURING OFF-LOAD COMPRISING A CONSUMABLE METAL ANODE, A COMPOSITE CATHODE, SAID ANODE AND CATHODE BEING SPACED APART AND ELECTRONICALLY SEPARATED FROM EACH OTHER AND DEFINING AN ELECTROLYT CHAMBER THEREBETWEEN. AND AN ELECTROLYTE IN SAID ELECTROLYTE CHAMBER, SAID COMPOSITE CATHODE COMPRISING AN AIR PERMEABLE AND ELECTROLYTE IMPERMEABLE HYDROPHOBIC SURFACE HAVING A LAYER OF ELECTROCHEMICALLY ACTIVE CATALYST THEREON WHICH IS ACTIVE WITH RESPECT TO OXIDATION OF HYDROGEN AND REDUCTION OF OXYGEN COMPRISING THE STEPS OF (1) ELECTRICALLY CONNECTING THE COMPOSITE CATHODE OF THE CELL TO THE CONSUMABLE ANODE; AND (2) SWEEPING THE CATHODE WITH HYDROGEN.
Claim 2
Independent Claim
101 words
A METHOD OF CHEMICALLY RECHARGING A METAL/AIR BATTERY DURING OFF-LOAD COMPRISING A CONSUMABLE METAL ANODE, A COMPOSITE CATHODE, SAID ANODE AND CATHODE BEING SPACED APART AND ELECTRONICALLY SEPARATED FROM EACH OTHER AND DEFINING AN ELECTROLYT CHAMBER THEREBETWEEN. AND AN ELECTROLYTE IN SAID ELECTROLYTE CHAMBER, SAID COMPOSITE CATHODE COMPRISING AN AIR PERMEABLE AND ELECTROLYTE IMPERMEABLE HYDROPHOBIC SURFACE HAVING A LAYER OF ELECTROCHEMICALLY ACTIVE CATALYST THEREON WHICH IS ACTIVE WITH RESPECT TO OXIDATION OF HYDROGEN AND REDUCTION OF OXYGEN COMPRISING THE STEPS OF (1) ELECTRICALLY CONNECTING THE COMPOSITE CATHODE OF THE CELL TO THE CONSUMABLE ANODE; AND (2) SWEEPING THE CATHODE WITH HYDROGEN.
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) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |