Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2007-07-10
2007-07-10
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000
Reexamination Certificate
active
10802026
ABSTRACT:
A pair of reactant gas manifolds (11and12) on opposite sides of a fuel cell stack (7) are sealed to the fuel cells (14) and pressure plates (8) by means of pressure applied by load cables (17). The centers of the manifolds are prevented from having leakage between them and the end plates by means of a tensioning system comprising a plurality of pins (22) extending outwardly from the ends of the manifolds, and tensioning cables (23) extending around the pins in a closed loop and tensioned by a turnbuckle (24).
REFERENCES:
patent: 4345009 (1982-08-01), Fahle et al.
patent: 4692391 (1987-09-01), Hirota
patent: 6461756 (2002-10-01), Blanchet et al.
patent: 6696193 (2004-02-01), Bonk et al.
Petty Dale W.
Phillips Cynthia M.
Hodge Robert
Ryan Patrick Joseph
UTC Power Corporation
Williams M. P.
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