Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2008-01-15
2008-01-15
Crepeau, Jonathan (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000, C429S006000, C429S006000
Reexamination Certificate
active
10917066
ABSTRACT:
The present invention discloses a stamped bridge member that defines a flow path between a header and a flow field on a fuel cell plate. The bridge member provides a support surface on which a seal can be positioned to seal the plate against adjacent plates or MEAs. The fuel cell plates can be stamped plates with two surfaces each having flow fields thereon. The flow fields maintain a fluid flowing between a supply header and a return header on a single surface of the plate. The ends of the flow fields can taper relative to the supply and return apertures to provide for a desired flow distribution through the flow field.
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patent: 6017648 (2000-01-01), Jones
patent: 6840969 (2005-01-01), Kobayashi et al.
patent: 2002/0117780 (2002-08-01), Inoue et al.
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patent: 2003/0087140 (2003-05-01), Kikuchi et al.
patent: 2003/0134173 (2003-07-01), Hatoh et al.
Ofslager Scott C
Rock Jeffrey A
Chuo Tony
Crepeau Jonathan
General Motors Corporation
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