Appeal No. 95-3362
Application 08/009,200
by the heat load from the fuel cell and the heat generating means
is equal to the predetermined value as recited in Appellant’s
claim 5.
In particular, Appellant argues on page 25 of the brief and
page 4 of the reply brief that claims 1 and 5 recite a feed
forward control system from the standpoint of the heat load.
Appellant argues that the claimed invention does not control the
heat generation based upon detection of a change in the heat load
as taught by Aasen, but rather the claimed invention detects the
decreased electric power load and controls the electric heater so
as to adjust the sum of output heat from the electric heater and
the heat engine.
After a careful review of Aasen, we fail to find that Aasen
teaches any of the above means as claimed by Appellant. Aasen
teaches in column 4, lines 4-22, a cogenerated system 10 having a
auxiliary heating unit 20 as shown in Figure 1. We note that
Figure 1 does not show that the auxiliary heating unit 20 is
powered by the electrical generator 20. Furthermore, we find
that Aasen in column 11, lines 5-6, and column 16, line 40
through column 17, line 22, discloses that the demand for heat is
determined when sensor S34 is closed sensing that there is a
demand for heat at the heating load. Therefore, Assen fails to
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