US3589941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell with internal manifolds
Assignee: Onan Corp
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Filing: 1969-02-24
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Granted: 1971-06-29
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Expires: 1989-02-24
Abstract
Abstract A FUEL BATTERY CONSISTING OF A PLURALITY OF ASSOCIATED DUPLEX CELLS. EACH DUPLEX CELL IS MOUNTED ON A SINGLE FRAME WHICH DEFINES AN INTEGRALLY FORMED FUEL INPUT MANIFOLD, EXHAUST MANIFOLD, ANODE TERMINAL MANIFOLD, AND CATHODE TERMINAL MANIFOLD. VALVE MEANS IS PROVIDED TO INDIVIDUALLY REGULATE THE FUEL INPUT TO EACH DUPLEX CELL. A PLURALITY OF DUPLEX CELLS MAY BE ASSOCIATED IN A HIGHLY CONVENIENT AND EFFICIENT MANNER DUE TO THE MATING DESIGN OF THE MANIFOLDS. ADJACENT DUPLEX CELLS MAY BE ELECTRICALLY CONNECTED IN SERIES OR IN PARALLEL WITH A MINIMUM OF ADAPTATION OR CONVERSION OF INDIVIDUAL DUPLEX CELLS.
Inventors
- 👤 James J Eaton
- 👤 Donald W Tschida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:17
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/241; H01M8/242; H01M8/02; H01M8/0202; H01M8/0258; H01M8/0263; H01M8/2465; H01M8/2483; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |