US3375140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell with hydrogen purification means and process of using same
Assignee: Leesona Corp
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Filing: 1964-09-08
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Granted: 1968-03-26
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Harry G Oswin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:49
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/06; H01M8/0662; C; C01; C01B; C01B3/00; C01B3/50; C01B3/501; C01B2203/00; C01B2203/04; C01B2203/0405; C01B2203/041; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
A FUEL CELL FOR THE GENERATION OF ELECTRICAL ENERGY DIRECTLY FROM A FUEL AND OXIDANT COMPRISING AN ELECTROLYTE, AT LEAST ONE OXIDIZING ELECTRODE, AT LEAST ONE FUEL ELECTRODE, SAID ELECTRODES BEING IN CONTCT WITH SAID ELECTROTRODE, SAID ELECTRODES BEING IN CONTACT WITH SAID ELECTROLYTE, MEANS FOR PROVIDING FUEL TO SAID FUEL ELECTRODE AND MEANS FOR PROVIDING OXIDANT TO SAID OXIDIZING ELECTRODE, SAID FUEL ELECTRODE COMPRISING A POROUS BODY IN COMBINATION WITH A NON-POROUS HDROGEN DIFFUSION MEMBRANE, SAID POROUS BODY AND SAID NON-POROUS HYDROGEN DIFFUSION MEMBRANE BEING SPACED APART TO FORM A CHAMBER THEREBETWEN AND SAID NON-POROUS HYDROGEN DIFFUSION MEMBRANE BEING ADJACENT SAID MEANS FOR PROVIDIDNG FUEL TO SAID ELECTRODE, SAID MEANS FOR PROVIDING FUEL BEING SO CONSTRUCTED AND ARRANGED THAT THE FUEL INITIALLY CONTACTS THAT DIFFUSION MEMBRANE WHEN ENTERING THE ELECTRODE SUCH THAT ONLY HYDROGEN DIFFUSES THERETHROUGH TO THE POROUS BODY.
Claim 2
Dependent Claim
141 words
A FUEL CELL FOR THE GENERATION OF ELECTRICAL ENERGY DIRECTLY FROM A FUEL AND OXIDANT COMPRISING AN ELECTROLYTE, AT LEAST ONE OXIDIZING ELECTRODE, AT LEAST ONE FUEL ELECTRODE, SAID ELECTRODES BEING IN CONTCT WITH SAID ELECTROTRODE, SAID ELECTRODES BEING IN CONTACT WITH SAID ELECTROLYTE, MEANS FOR PROVIDING FUEL TO SAID FUEL ELECTRODE AND MEANS FOR PROVIDING OXIDANT TO SAID OXIDIZING ELECTRODE, SAID FUEL ELECTRODE COMPRISING A POROUS BODY IN COMBINATION WITH A NON-POROUS HDROGEN DIFFUSION MEMBRANE, SAID POROUS BODY AND SAID NON-POROUS HYDROGEN DIFFUSION MEMBRANE BEING SPACED APART TO FORM A CHAMBER THEREBETWEN AND SAID NON-POROUS HYDROGEN DIFFUSION MEMBRANE BEING ADJACENT SAID MEANS FOR PROVIDIDNG FUEL TO SAID ELECTRODE, SAID MEANS FOR PROVIDING FUEL BEING SO CONSTRUCTED AND ARRANGED THAT THE FUEL INITIALLY CONTACTS THAT DIFFUSION MEMBRANE WHEN ENTERING THE ELECTRODE SUCH THAT ONLY HYDROGEN DIFFUSES THERETHROUGH TO THE POROUS BODY.
Claim 3
Dependent Claim
113 words
THE IN SITU PROCESS OF SUPPLYIN A FUEL GAS TO HYDROGEN DIFFUSION FUEL CELL COMPRISING REFOMING HYDROCARBONS INTO GASEOUS COMPONENTS, FLOWING SAID GASEOUS COMPONENTS THROUGH A NON-POROUS HYDROGEN DIFFUSION TUBE UNDER PRESURE WHEREBY THE HYDROGEN GAS DIFFUSES THROUGH SAID TUBE INTO A POROUS TUBE, SAID POROUS TUBE IN COMBINATION WITH SAID NON-POROUS TUBE FORMING THE FUEL GAS COMPARTMENT, AND SAID POROUS TUBE BEING THE FUEL ELECTRODE, THE PRESSURE OF THE GAS BETWEEN SAID POROUS TUBE AND NON-POROUS TUBE BEING MAINTAINED AT A LOWER PRESSURE THAN IN HE NON-POROUS TUBE, SAID NON-POROUS TUBE BEING A MEMBER OF THE GROUP CONSISTING OF PALLADIUM AND PALLADIUM-SILVER ALLOYS CONTAINING FROM 5 TO 40 PERCENT BY WEIGHT SILVER.
Claim 4
Dependent Claim
113 words
THE IN SITU PROCESS OF SUPPLYIN A FUEL GAS TO HYDROGEN DIFFUSION FUEL CELL COMPRISING REFOMING HYDROCARBONS INTO GASEOUS COMPONENTS, FLOWING SAID GASEOUS COMPONENTS THROUGH A NON-POROUS HYDROGEN DIFFUSION TUBE UNDER PRESURE WHEREBY THE HYDROGEN GAS DIFFUSES THROUGH SAID TUBE INTO A POROUS TUBE, SAID POROUS TUBE IN COMBINATION WITH SAID NON-POROUS TUBE FORMING THE FUEL GAS COMPARTMENT, AND SAID POROUS TUBE BEING THE FUEL ELECTRODE, THE PRESSURE OF THE GAS BETWEEN SAID POROUS TUBE AND NON-POROUS TUBE BEING MAINTAINED AT A LOWER PRESSURE THAN IN HE NON-POROUS TUBE, SAID NON-POROUS TUBE BEING A MEMBER OF THE GROUP CONSISTING OF PALLADIUM AND PALLADIUM-SILVER ALLOYS CONTAINING FROM 5 TO 40 PERCENT BY WEIGHT SILVER.
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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |