US3097974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell electrode
Assignee: Air Products and Chemicals Inc
•
Filing: 1960-11-07
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Granted: 1963-07-16
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Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 James E Mcevoy
- 👤 Shalit Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:44
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/88; H01M4/8803; H01M4/8807; H01M4/8825; H01M4/8846; H01M4/8878; H01M4/8882; H01M4/8892; H01M4/885; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
THE METHOD FOR MAKING CATALYTIC FUEL CELL WHICH COMPRISES THE STEPS OF: FORMING A WATER SOLUTION OF A NOBLE METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF PALLADIUM CHLORIDE AND CHLOROPLATINIC ACID, THE METALLIC COMPOUNENT THEREOF BEING PRESENT IN THE AMOUNT REQUIRED IN THE FINISHED ELECTRODE; COMBINING WITH SAID SOLUTION A QUANTITY OF HIGH SURFACE AREA, ACTIVATED CARBON POWDER FINER THAN 200 MESH SO AS TO FORM A SLURRY; ADMIXING THE SLURRY-FORMING COMPONENTS FOR A TIME SUFFCIENT TO EFFECT MAXIMUM ADSORPTION OF SAID NOBLE METAL COMPOUND ON SAID ACTIVATED CARBON; REMOVING EXCESS LIQUID FROM SAID SLURRY AND FURTHER DRYING THE ACTIVATED CARBON CONTAINING ABSORBED NOBLE METAL COMPOUND; FORMING A SUSPENSION OF SAID ACTIVATED CARBON CONTAINING ADSORBED NOBLE METAL; INTRODUCING SAID SUSPENSION BY DEPOSITION INTO THE PORES OF A THIN POROUS ELECTRODE MATRIX HAVING AN AVERAGE PORE DIAMETER SUBSTANTIALLY GREATER THAN THE PARTICLE SIZE RANGE OF SAID ACTIVATED CARBON POWDER; AND DRYING SAID MATRIX.
Claim 2
Independent Claim
153 words
THE METHOD FOR MAKING CATALYTIC FUEL CELL WHICH COMPRISES THE STEPS OF: FORMING A WATER SOLUTION OF A NOBLE METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF PALLADIUM CHLORIDE AND CHLOROPLATINIC ACID, THE METALLIC COMPOUNENT THEREOF BEING PRESENT IN THE AMOUNT REQUIRED IN THE FINISHED ELECTRODE; COMBINING WITH SAID SOLUTION A QUANTITY OF HIGH SURFACE AREA, ACTIVATED CARBON POWDER FINER THAN 200 MESH SO AS TO FORM A SLURRY; ADMIXING THE SLURRY-FORMING COMPONENTS FOR A TIME SUFFCIENT TO EFFECT MAXIMUM ADSORPTION OF SAID NOBLE METAL COMPOUND ON SAID ACTIVATED CARBON; REMOVING EXCESS LIQUID FROM SAID SLURRY AND FURTHER DRYING THE ACTIVATED CARBON CONTAINING ABSORBED NOBLE METAL COMPOUND; FORMING A SUSPENSION OF SAID ACTIVATED CARBON CONTAINING ADSORBED NOBLE METAL; INTRODUCING SAID SUSPENSION BY DEPOSITION INTO THE PORES OF A THIN POROUS ELECTRODE MATRIX HAVING AN AVERAGE PORE DIAMETER SUBSTANTIALLY GREATER THAN THE PARTICLE SIZE RANGE OF SAID ACTIVATED CARBON POWDER; AND DRYING SAID MATRIX.
References Cited (Backward Citations)
US2384463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |