Appeal No. 2004-2053
Application 09/773,704
APPEALED SUBJECT MATTER
The subject matter on appeal is directed to a method of
operating a fuel cell stack which comprises routing at least some
of the power produced by the fuel cell stack not consumed by a
first load, e.g., appliances and/or electrical devices associated
with houses, to a second load, i.e., a battery. See, e.g.,
claims 1 and 3, together with the specification, page 4.
Further details of the appealed subject matter are recited in
illustrative claims 1 and 3 reproduced below:
1. A method of operating a fuel cell stack, comprising:
providing a fuel flow to the fuel cell stack to produce
power, at least some of the power produced by the fuel cell stack
being consumed by a first load;
in response to a decrease in at least one of the power
produced by the fuel cell stack and the power consumed by the
first load, determining whether to route at least some of the
power produced by the fuel cell stack and not consumed by the
first load to a second load; and
based on the determination, selectively routing said at
least some of the power produced by the fuel cell stack and not
consumed by the first load to the second load.
3. The method of claim 1, wherein
the second load comprises a battery; and
2
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