Patent US3395046A successfully refreshed from Google Patents.
US3395046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell and method of operation
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-12-19
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Granted: 1968-07-30
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Duane G Levine
- 👤 James A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:53
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/2459; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2668; Y10T137/8593; Y10T137/86493; Y10T137/86509; Y10T137/86517; Y10T137/86533; Y10T137/86541
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
137 words
A FUEL CELL BATTERY DESIGNED FOR SUSTAINING EFFICIENT OPERATION WHICH COMPRISES A CONTAINER HAVING A PLURALITY OF FUEL CELLS THEREIN AND A MEANS FOR INTERMITTENTLY INTERRUPTING THE FLOW OF OXIDANT TO EACH CELL SEQUENTIALLY, SAID CONTAINER DIVIDED INTO A FUEL CELL COMPARTMENT AND A COMPARTMENT HOUSING THE SAID INTERRUPTING MEANS, EACH OF THE CELLS IN THE FUEL CELL COMPARTMENT FITTED WITH APERTURES SO THAT THE CATHODE COMPARTMENT OF EACH CELL COMMUNICATES WITH THE INTERRUPTING MEANS COMPARTMENT, SAID CONTAINER FITTED WITH INLET AND OUTLET MEANS FOR THE INTRODUCTION AND EMISSION OF OXIDANT TO THE INTERRUPTING MEANS COMPARTMENT THEREBY ALLOWING THE OXIDANT TO ENTER EACH CELL THROUGH SAID APERTURE, SAID INTERRUPTING MEANS COMPRISING A ROTATABLE ELONGATED CYLINDER HAVING POSTS SPIRALLY ARRANGED THEREON SO THAT AS THE CYLINDER TURNS THE APERTURES TO EACH CELL ARE SEQUENTIALLY CLOSED BY SAID POSTS.
Claim 2
Dependent Claim
137 words
A FUEL CELL BATTERY DESIGNED FOR SUSTAINING EFFICIENT OPERATION WHICH COMPRISES A CONTAINER HAVING A PLURALITY OF FUEL CELLS THEREIN AND A MEANS FOR INTERMITTENTLY INTERRUPTING THE FLOW OF OXIDANT TO EACH CELL SEQUENTIALLY, SAID CONTAINER DIVIDED INTO A FUEL CELL COMPARTMENT AND A COMPARTMENT HOUSING THE SAID INTERRUPTING MEANS, EACH OF THE CELLS IN THE FUEL CELL COMPARTMENT FITTED WITH APERTURES SO THAT THE CATHODE COMPARTMENT OF EACH CELL COMMUNICATES WITH THE INTERRUPTING MEANS COMPARTMENT, SAID CONTAINER FITTED WITH INLET AND OUTLET MEANS FOR THE INTRODUCTION AND EMISSION OF OXIDANT TO THE INTERRUPTING MEANS COMPARTMENT THEREBY ALLOWING THE OXIDANT TO ENTER EACH CELL THROUGH SAID APERTURE, SAID INTERRUPTING MEANS COMPRISING A ROTATABLE ELONGATED CYLINDER HAVING POSTS SPIRALLY ARRANGED THEREON SO THAT AS THE CYLINDER TURNS THE APERTURES TO EACH CELL ARE SEQUENTIALLY CLOSED BY SAID POSTS.
Claim 3
Dependent Claim
42 words
IN AN OPERATION OF A FUEL CELL WITH AN ANODE AND A CATHODE, COMPRISING THE STEPS OF FEEDING AN OXIDANT CONSISTING ESSENTIALLY OF PURE OXYGEN AND AIR TO THE CATHODE AND A LIQUID FUEL TO THE ANODE IN AN ACID ELECTROLYTE, THE
Claim 4
Dependent Claim
42 words
IN AN OPERATION OF A FUEL CELL WITH AN ANODE AND A CATHODE, COMPRISING THE STEPS OF FEEDING AN OXIDANT CONSISTING ESSENTIALLY OF PURE OXYGEN AND AIR TO THE CATHODE AND A LIQUID FUEL TO THE ANODE IN AN ACID ELECTROLYTE, THE
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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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |