Patent US3405008A successfully refreshed from Google Patents.
US3405008A
Expired / Lapsed
US
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Fuel cell and fuel cell electrode containing nickel-rare earth intermetallic catalyst
Assignee: Allis Chalmers Corp
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Filing: 1965-03-31
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Granted: 1968-10-08
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Expires: 1985-03-31
Abstract
No abstract record available.
Inventors
- 👤 Louis R Dilworth
- 👤 Wayne J Wunderlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:59
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
AN IMPROVED FUEL CELL HAVING A HOUSING; ANODE AND CATHODE ELECTRODES MOUNTED WITHIN SAID HOUSING IN SPACED RELATION TO EACH OTHER; AN ELECTROLYTE DISPOSED BETWEEN SAID ELECTRODES; MEANS FOR SUPPLYING A FUEL TO THE ANODE AND MEANS FOR SUPPLYING AN OXIDANT TO THE CATHODE; SAID IMPROVEMENT CONSISTING OF SAID ANODE COMPRISING A NICKEL INTERMETALLIC CATALYTIC MATERIAL HAVING THE FORMULA NI5M WHERE M IS A METAL SELECTED FROM THE GROUP CONSISTING OF YTTRIUM, LANTHANUM, CERIUM, PRASEODYMIUM, NEODYMIUM, SAMARIUM, EUROPIUM, GADOLINIUM, TERBIUM, DVSPROSIUM, HOLMIUM, ERBIUM, THULIUM, YTTERBIUM, ANDLUTETIUM AND A SUPPORT MEMBER CARRYING SAID CATALYTIC MATERIAL.
Claim 2
Dependent Claim
94 words
AN IMPROVED FUEL CELL HAVING A HOUSING; ANODE AND CATHODE ELECTRODES MOUNTED WITHIN SAID HOUSING IN SPACED RELATION TO EACH OTHER; AN ELECTROLYTE DISPOSED BETWEEN SAID ELECTRODES; MEANS FOR SUPPLYING A FUEL TO THE ANODE AND MEANS FOR SUPPLYING AN OXIDANT TO THE CATHODE; SAID IMPROVEMENT CONSISTING OF SAID ANODE COMPRISING A NICKEL INTERMETALLIC CATALYTIC MATERIAL HAVING THE FORMULA NI5M WHERE M IS A METAL SELECTED FROM THE GROUP CONSISTING OF YTTRIUM, LANTHANUM, CERIUM, PRASEODYMIUM, NEODYMIUM, SAMARIUM, EUROPIUM, GADOLINIUM, TERBIUM, DVSPROSIUM, HOLMIUM, ERBIUM, THULIUM, YTTERBIUM, ANDLUTETIUM AND A SUPPORT MEMBER CARRYING SAID CATALYTIC MATERIAL.
Claim 3
Dependent Claim
70 words
A FUEL CELL ELECTRODE COMPRISING A FIBROUS THERMOPLASTIC SHEET; SAID SHEET HAVING ITS INTERTWINED FIBERS FORMING A MYRIAD OF INTERSTICES; AND PARTICLES OF A CATALYTIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF A NICKEL INTERMETALLIC HAVING THE FORMULA NI5M WHERE M IS A METAL SELECTED FROM THE GROUP CONSISTING OF YTTRIUM, LANTHANUM, CERIUM, PRASEODYMIUM, NEODYMIUM, SAMARIUM, EUROPIUM, GADOLINIUM, TERBIUM, DYSPROSIUM, HOLMIUM, ERBIUM, THULIUM, YTTERBIUM, AND LUTETIUM DISPERSED WITHIN SAID INTERSTICES.
Claim 4
Dependent Claim
70 words
A FUEL CELL ELECTRODE COMPRISING A FIBROUS THERMOPLASTIC SHEET; SAID SHEET HAVING ITS INTERTWINED FIBERS FORMING A MYRIAD OF INTERSTICES; AND PARTICLES OF A CATALYTIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF A NICKEL INTERMETALLIC HAVING THE FORMULA NI5M WHERE M IS A METAL SELECTED FROM THE GROUP CONSISTING OF YTTRIUM, LANTHANUM, CERIUM, PRASEODYMIUM, NEODYMIUM, SAMARIUM, EUROPIUM, GADOLINIUM, TERBIUM, DYSPROSIUM, HOLMIUM, ERBIUM, THULIUM, YTTERBIUM, AND LUTETIUM DISPERSED WITHIN SAID INTERSTICES.
References Cited (Backward Citations)
US3276909A
Cited
US3297489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |