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US3573102A Expired / Lapsed US ⏱️ 0.0 years remaining

Fuel cell gas manifold system

Assignee: RTX Corp
•
Filing: 1966-11-07
•
Granted: 1971-03-30
•
Expires: 1986-11-07
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Abstract

Abstract A MANIFOLD SYSTEM FOR DISTRIBUTING THE FLOW OF REACTANT GASES THROUGH A FUEL CELL TO PREVENT A DRYING OUT OF THE CELL. THE FUEL CELL INCLUDES A FUEL ELECTRODE, AN OXIDANT ELECTRODE, AND AN AQUEOUS ELECTROLYTE RETENTIVE MATRIX LOCATED BETWEEN THE ELECTRODES. THE MANIFOLD SYSTEM INCLUDES A GAS CHAMBER FOR DISTRIBUTING THE FLOW OF AT LEAST ONE OF THE REACTANT GASES OVER THE SURFACE OF ITS ELECTRODE IN A CIRCUITOUS PATH BETWEEN THE INLET AND OUTLET OF THE CHAMBER. THE INLET AND OUTLET ENDS OF THE CHAMBER ARE LOCATED CLOSELY ADJACENT TO EACH OTHER WITH RESPECT TO THE PATH FOLLOWED BY THE GAS FLOWING THROUGH THE CHAMBER SO THAT THE DRIEST AND WETTEST REGIONS OF THE CELL NEAR THE INLET AND OUTLET ENDS, RESPECTIVELY, OF THE CHAMBER ARE CLOSE TOGETHER TO PREVENT A DRYING-OUT OF THE CELL.

Inventors

  • 👤 John W Lane
  • 👤 John H Hirschenhofer
  • 👤 Raymond L Gelting

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 07:09
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/08; 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) 1974-03-29 1974-09-28 1975-03-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-29 1978-09-28 1979-03-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-29 1982-09-28 1983-03-30 $7700.00 Window Closed / Lapsed

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