Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2007-03-06
2007-03-06
Maples, John S. (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000, C429S006000, C429S006000
Reexamination Certificate
active
10703237
ABSTRACT:
A PEM fuel cell includes a cathode plate for directing a first fluid along a surface thereof. An anode plate directs a second fluid along a surface thereof. An MEA is oriented in a first direction. The MEA includes an anode face opposing the anode plate and a cathode face opposing the cathode plate. A plate margin includes first and second header apertures oriented in a second direction perpendicular to the first direction. A first seal is disposed between the anode plate and the MEA. The first seal defines a first fluid communication path between the first header aperture and the anode plate. A second seal is disposed between the cathode plate and the MEA. The second seal defines a second fluid communication path between the second header aperture and the cathode plate. The first and second seals allow the first and second fluid to flow through respective passages thereon in a direction parallel the first direction.
REFERENCES:
patent: 6051331 (2000-04-01), Spear et al.
patent: 6503653 (2003-01-01), Rock
patent: 6599653 (2003-07-01), Cummins et al.
patent: 6833210 (2004-12-01), Kikuchi et al.
patent: 2002/0127461 (2002-09-01), Sugita et al.
General Motors Corporation
Harness & Dickey & Pierce P.L.C.
Maples John S.
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