Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
Reexamination Certificate
2007-04-02
2011-10-11
Alejandro, Raymond (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for control of operation
C429S414000, C429S457000, C429S483000, C429S480000
Reexamination Certificate
active
08034502
ABSTRACT:
A device and method to extract water from a moisture-rich fuel cell flowpath. A water transport unit is integrated into the fuel cell so that liquid water stagnation within flow channels and manifolds is reduced. In one embodiment, the device includes numerous flowpaths that include an active region and an inactive region. The water transport unit includes a hydrophilic member such that upon passage of a fluid with the excess water through the inactive region of the device flowpath and into the presence of the hydrophilic member, it absorbs excess water from the fluid.
REFERENCES:
patent: 4175165 (1979-11-01), Adlhart
patent: 2005/0158593 (2005-07-01), Minehisa et al.
patent: 2007/0072016 (2007-03-01), St-Pierre et al.
Owejan Jon P.
Rock Jeffrey A.
Tighe Thomas W.
Trabold Thomas A.
Alejandro Raymond
Dinsmore & Shohl LLP
GM Global Technology Operations LLC
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