Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2007-12-11
2007-12-11
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000
Reexamination Certificate
active
11027095
ABSTRACT:
A modular fuel cell cassette for use in assembling a fuel cell stack comprising a metal separator plate and a metal cell-mounting plate joined at their edges to form a hollow cassette. A fuel cell subassembly is attached to the mounting plate and extends through an opening in the mounting plate. The plates include openings to form chimney manifolds for supply and exhaust of fuel gas to the anode and air to the cathode. A conductive interconnect element extends from the fuel cell subassembly to make contact with the next cassette in a stack. The anode openings in the mounting plate and separator plate are separated by spacer rings such that the cassette is incompressible. A fuel cell stack comprises a plurality of cassettes, the mounting plate of one cassette being attached to, and insulated from, the separator plate of the next-adjacent cassette by a dielectric seal surrounding the interconnect.
REFERENCES:
patent: 6670068 (2003-12-01), Diez
patent: 2002/0048700 (2002-04-01), Virkar et al.
patent: 2002/0106548 (2002-08-01), Chung et al.
patent: 2003/0235746 (2003-12-01), Haltiner, Jr. et al.
patent: 2004/0265666 (2004-12-01), Weil et al.
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European Search Report dated Feb. 26, 2007.
Chick Lawrence A.
Deibler John E.
George, II Paul E.
Haltiner, Jr. Karl J.
Meinhardt Kerry D.
Battelle (Memorial Institute)
Delphi Technologies Inc.
Marshall Paul L.
Parsons Thomas H.
Ryan Patrick Joseph
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