US3226263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell electrodes
Assignee: Leesona Corp
•
Filing: 1960-07-20
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Granted: 1965-12-28
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Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Oswin Harry Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/88; H01M4/8875; H01M4/8878; H01M4/8882; H01M4/8885; H01M4/90; H01M4/9016; H01M4/9041; H01M2004/8678; H01M2004/8684; H01M2004/8689; H01M2300/00; H01M2300/0002; H01M2300/0017; H01M2300/0048; H01M2300/0065; H01M4/92; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
THE METHOD OF MAKING AN ELECTODE FOR A FUEL CELL COMPRISING THE STEPS OF (1) COATING METAL PARTICLES HAVING A RANDOM PARTICLE SIZE OF FROM 0.5 MICRON TO 1/8 INCH IN DIAMETER WITH A THERMO-SETTING RESIN, (2) SUSPENDING SAID COATED METAL POWDER IN A FLUID BODY TO OBTAIN A SEPARATON OF THE METAL PARTICLES OF SAID METAL POWDER, SAID FLUID BODY BEING OF SUFFICIENT HEIGHT TO PERMIT SEDIMENTATION OF SMALLER PARTICLES UPON LARGER PARTICLES, AND SAID FLUID BODY HAVING A DENSITY LESS THAN THE DENSITY OF SAID METAL POWDER, (3) SEDIMENTING SAID COATED METAL PARTICLES THROUGH SAID FLUID, (4) COLLECTING THE PARTICLES ON A RECEIVING PLATE, (5) REMOVING THE FLUID FROM THE PARTICLES, (6) HEATING SAID COATED PARTICLES SUFFICIENT TO MELT SAID THERMO-SETTING RESIN, (7) COOLING SAID PARTICLES TO OBTAIN BONDING OF SAID PARTICLES, (8) SHAPING SAID PARTICLES, AND (9) HEATING AT A TEMPERATURE SUFFICIENT TO CARBONIZE SAID THERMO-SETTING RESIN AND SINER SAID METAL PARTICLES.
Claim 2
Independent Claim
155 words
THE METHOD OF MAKING AN ELECTODE FOR A FUEL CELL COMPRISING THE STEPS OF (1) COATING METAL PARTICLES HAVING A RANDOM PARTICLE SIZE OF FROM 0.5 MICRON TO 1/8 INCH IN DIAMETER WITH A THERMO-SETTING RESIN, (2) SUSPENDING SAID COATED METAL POWDER IN A FLUID BODY TO OBTAIN A SEPARATON OF THE METAL PARTICLES OF SAID METAL POWDER, SAID FLUID BODY BEING OF SUFFICIENT HEIGHT TO PERMIT SEDIMENTATION OF SMALLER PARTICLES UPON LARGER PARTICLES, AND SAID FLUID BODY HAVING A DENSITY LESS THAN THE DENSITY OF SAID METAL POWDER, (3) SEDIMENTING SAID COATED METAL PARTICLES THROUGH SAID FLUID, (4) COLLECTING THE PARTICLES ON A RECEIVING PLATE, (5) REMOVING THE FLUID FROM THE PARTICLES, (6) HEATING SAID COATED PARTICLES SUFFICIENT TO MELT SAID THERMO-SETTING RESIN, (7) COOLING SAID PARTICLES TO OBTAIN BONDING OF SAID PARTICLES, (8) SHAPING SAID PARTICLES, AND (9) HEATING AT A TEMPERATURE SUFFICIENT TO CARBONIZE SAID THERMO-SETTING RESIN AND SINER SAID METAL PARTICLES.
References Cited (Backward Citations)
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US1377645A
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GB544969A
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US2300048A
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GB781433A
Cited
US2887227A
Cited
US2947797A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |