US3287167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling operations of fuel cells
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-10-18
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Granted: 1966-11-22
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Expires: 1981-10-18
Abstract
No abstract record available.
Inventors
- 👤 Malcolm A Weiss
- 👤 Jr Lindsay I Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:03
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/08; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
THE METHOD OF CONTROLLING OPERATION OF A FUEL CELL WHICH CONSUMERS HYDROGEN-CONTAINING FUEL AND THEREBY PRODUCES WATER AND WHICH UTILIZES AND AQUEOUS ELECTROLYTE WHEREIN AT LEAST PART OF SAID WATER IS PRODUCED, WHICH METHOD COMPRISES OPERATING SAID CELL UNDER ELEVATED TEMPERATURE CONDITIONS SUCH THAT WATER IS REMOVED FROM SAID ELECTROLYTE FASTER THAN IT IS PRODUCED THEREIN, AND SUCH THAT AT LEAST PART OF SAID REMOVED WATER IS IN VAPOR FROM, SUBJECTING THE REMOVED WATER VAPOR TO HEAT EXCHANGE TO CONDENSE AT LEAST PART OF SAID VAPOR, RETURNING CONDENSED WATER FROM SAID CONDENSATION TO SAID ELECTROLYTE, AND CONTROLLING SAID WATER RETURN SO AS TO KEEP THE WATER INVENTORY IN SAID ELECTROLYTE SUBSTANTIALLY CONSTANT.
Claim 2
Independent Claim
112 words
THE METHOD OF CONTROLLING OPERATION OF A FUEL CELL WHICH CONSUMERS HYDROGEN-CONTAINING FUEL AND THEREBY PRODUCES WATER AND WHICH UTILIZES AND AQUEOUS ELECTROLYTE WHEREIN AT LEAST PART OF SAID WATER IS PRODUCED, WHICH METHOD COMPRISES OPERATING SAID CELL UNDER ELEVATED TEMPERATURE CONDITIONS SUCH THAT WATER IS REMOVED FROM SAID ELECTROLYTE FASTER THAN IT IS PRODUCED THEREIN, AND SUCH THAT AT LEAST PART OF SAID REMOVED WATER IS IN VAPOR FROM, SUBJECTING THE REMOVED WATER VAPOR TO HEAT EXCHANGE TO CONDENSE AT LEAST PART OF SAID VAPOR, RETURNING CONDENSED WATER FROM SAID CONDENSATION TO SAID ELECTROLYTE, AND CONTROLLING SAID WATER RETURN SO AS TO KEEP THE WATER INVENTORY IN SAID ELECTROLYTE SUBSTANTIALLY CONSTANT.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |