Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Grouping of fuel cells into stack or module
Reexamination Certificate
2011-07-05
2011-07-05
Apicella, Karie O'Neill (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Grouping of fuel cells into stack or module
C429S452000, C429S457000, C429S463000, C429S471000
Reexamination Certificate
active
07972741
ABSTRACT:
A fuel cell stack that includes straight cathode flow channels and straight anode flow channels through a seal area between bipolar plates in the stack. The fuel cell stack includes a seal that extends around the active area of the stack and between the stack headers and the active area. At the locations where the cathode flow channels extend through a seal area to the cathode input header and the cathode outlet header, and the anode flow channels extend through a seal area to the anode input header and the anode output header, the diffusion media layer on one side of the membrane is extended to provide the seal load. Alternately, shims can be used to carry the seal load.
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patent: 2010/0003564 (2010-01-01), Tanaka
Beutel Matthew J.
Goebel Steven G.
Rock Jeffrey A.
Apicella Karie O'Neill
GM Global Technology Operations LLC
Miller John A.
Miller IP Group, PLC
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