US3253953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell floating elements
Assignee: RTX Corp
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Filing: 1962-02-28
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Granted: 1966-05-31
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Expires: 1982-02-28
Abstract
No abstract record available.
Inventors
- 👤 Albert H Turner
- 👤 Mario J Diotalevi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:44
CPC Classifications
H; H01; H01M; H01M8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE COMBINATION WITH A FUEL CELL INCLUDING SPACED ELECTRODES DEFINING A SPACE THEREBETWEEN, AN ELECTROLYTE FILLING SAID SPACE AND SUBJECT TO EXPANSION DURING FUEL CELL OPERATION, A CLOSED HOUSING SURROUNDING SAID CELL AND BEING PRESSURIZED TO APPLY A SELECTED PRESSURE TO THE OUTER SURFACES OF THE ELECTRODES, A FRAME ELEMENT SURROUNDING EACH ELECTRODE IN SPACED RELATION THERETO AND SUBSTANTIALLY IN THE PLANE OF THE ASSOCIATED ELECTRODE, FLUID TIGHT CLOSURE MEANS ATTACHED TO AND EXTENDING BETWEEN THE PERIPHERY OF EACH ELECTRODE AND THE ASSOCIATEDA FRAME ELEMENT, A FLUID TIGHT SEAL MEANS BETWEEN SAID FRAME ELEMENTS TO RETAIN THE FLUID ELECTRLYTE WITHIN SAID SPACE, AT LEAST ONE OF SAID CLOSURE MEANS BEING A FLEXIBLE DIA-S PHRAGM TO PERMIT THE ASSOCIATED ELECTRODE TO MOVE AWAY FROM THE OTHER ELECTRODE FOR EXPANSION OF THE ELECTROLYTGE, AND CLAMPING MEANS TO HOLD SAID FRAME ELEMENTS TIGHTLY AGAINST THE SEAL MEANS THEREBETWEEN.
Claim 2
Dependent Claim
145 words
THE COMBINATION WITH A FUEL CELL INCLUDING SPACED ELECTRODES DEFINING A SPACE THEREBETWEEN, AN ELECTROLYTE FILLING SAID SPACE AND SUBJECT TO EXPANSION DURING FUEL CELL OPERATION, A CLOSED HOUSING SURROUNDING SAID CELL AND BEING PRESSURIZED TO APPLY A SELECTED PRESSURE TO THE OUTER SURFACES OF THE ELECTRODES, A FRAME ELEMENT SURROUNDING EACH ELECTRODE IN SPACED RELATION THERETO AND SUBSTANTIALLY IN THE PLANE OF THE ASSOCIATED ELECTRODE, FLUID TIGHT CLOSURE MEANS ATTACHED TO AND EXTENDING BETWEEN THE PERIPHERY OF EACH ELECTRODE AND THE ASSOCIATEDA FRAME ELEMENT, A FLUID TIGHT SEAL MEANS BETWEEN SAID FRAME ELEMENTS TO RETAIN THE FLUID ELECTRLYTE WITHIN SAID SPACE, AT LEAST ONE OF SAID CLOSURE MEANS BEING A FLEXIBLE DIA-S PHRAGM TO PERMIT THE ASSOCIATED ELECTRODE TO MOVE AWAY FROM THE OTHER ELECTRODE FOR EXPANSION OF THE ELECTROLYTGE, AND CLAMPING MEANS TO HOLD SAID FRAME ELEMENTS TIGHTLY AGAINST THE SEAL MEANS THEREBETWEEN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |