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
2005-04-22
2011-10-25
Ryan, Patrick (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for control of operation
C429S413000, C429S414000, C429S429000, C429S427000, C429S428000, C429S436000, C429S437000, C429S442000
Reexamination Certificate
active
08043755
ABSTRACT:
A power generation system has a fuel cell stack and at least one condensation point in the system at which water present after shutdown of the power generation system can condense or collect. Drying after shutdown is improved by maintaining a temperature gradient between the condensation point and at least one other component in the power generation system after shutdown. In one embodiment, the temperature gradient is maintained by housing the fuel cell stack in a thermally insulated container and arranging the condensation point outside of the insulating container. In another embodiment, drying after shutdown is accomplished with an adsorption unit having a water-adsorbing material arranged in a desired location within the power generation system.
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Form PCT/IPEA/416 (one (1) page) and Form PCT/IPEA/409 (twelve (12) pages) totaling (thirteen (13) pages), Apr. 23, 2004.
Crowell & Moring LLP
Lewis Ben
NuCellSys GmbH
Ryan Patrick
LandOfFree
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