US3098772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for fuel cell
Assignee: Individual
•
Filing: 1962-06-01
•
Granted: 1963-07-23
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Walter G Taschek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:15
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
THE METHOD OF PREPARING A CARBON ELECTRODE FOR USE IN A FUEL CELL USING AN ACID ELECTROLYTE INCLUDING THE STEPS OF (1) WEIGHTING THE CARBON ELECTRODE, (2) FIRING THE CARBON ELECTRODE IN AN OXIDIZING ATMOSPHERE FOR CONTROLLED OXIDATION OF THE CARBON, (3) COOLING THE CARBON ELECTRODE, (4) REWEIGHING THE CARBON ELECTRODE AND DETERMINING THAT A TOTAL WEIGHT LOSS OF 7 TO 10 PERCENT HAS OCCURRED, (5) DUSTING OFF THE ACTIVATED ELECTRODES, (6) INSERTING THE ACTIVATED ELECTRODES IN A WET PROOFING SOLUTION (7) DRYING THE ELECTRODES WITH A VACUM PUMP TO INSURE A DEY PORE STRUCTURE, (8) HEATING THE WET PROFFED ELECTRODES IN AN OVEN AT 200* C FOR TWO HOURS, (9) APPLYING A CHLOROPLATINIC ACID SOLUTION CONTAINING ABOUT 90 MG. OF PLATINUM PER ML. OF SOLUTION ON THE HOT ELECTRODE SO THAT ONE SQUARE CENTIMETER OF ELECTORDE AREA CONTAINS 2 MG. OF PLAYINUM, AND (10) PLACING THE ELECTRODE IN A VACUUM OVEN AT 200* C. FOR SIX HOURS.
Claim 2
Independent Claim
158 words
THE METHOD OF PREPARING A CARBON ELECTRODE FOR USE IN A FUEL CELL USING AN ACID ELECTROLYTE INCLUDING THE STEPS OF (1) WEIGHTING THE CARBON ELECTRODE, (2) FIRING THE CARBON ELECTRODE IN AN OXIDIZING ATMOSPHERE FOR CONTROLLED OXIDATION OF THE CARBON, (3) COOLING THE CARBON ELECTRODE, (4) REWEIGHING THE CARBON ELECTRODE AND DETERMINING THAT A TOTAL WEIGHT LOSS OF 7 TO 10 PERCENT HAS OCCURRED, (5) DUSTING OFF THE ACTIVATED ELECTRODES, (6) INSERTING THE ACTIVATED ELECTRODES IN A WET PROOFING SOLUTION (7) DRYING THE ELECTRODES WITH A VACUM PUMP TO INSURE A DEY PORE STRUCTURE, (8) HEATING THE WET PROFFED ELECTRODES IN AN OVEN AT 200* C FOR TWO HOURS, (9) APPLYING A CHLOROPLATINIC ACID SOLUTION CONTAINING ABOUT 90 MG. OF PLATINUM PER ML. OF SOLUTION ON THE HOT ELECTRODE SO THAT ONE SQUARE CENTIMETER OF ELECTORDE AREA CONTAINS 2 MG. OF PLAYINUM, AND (10) PLACING THE ELECTRODE IN A VACUUM OVEN AT 200* C. FOR SIX HOURS.
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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |