Appeal No. 1998-1248
Application No. 08/460,086
specification are not to be read into the claims. In re
Etter, 756 F.2d 852, 858, 225 USPQ 1, 5 (Fed. Cir. 1985).
We find that the scope of independent claim 10 includes
that the fuel flow to the gas turbine is controlled in
response to the load and that the speed of the turbine is
increased with increasing ambient temperature and load. This
is shown in the following limitations of claim 10:
“controlling the fuel supplied to the combustor in response to
a load demand signal” and “wherein the rotational speed of the
drive shaft increases to adjust an output of the gas turbine
in response to an increase in the load demand signal and an
increase in the ambient temperature.” The scope of claims 11
through 12 and 18 through 23 all include these limitations as
the claims are all ultimately dependent upon claim 10.
Having determined the scope of claims 10 through 12 and
18 through 23, we next consider the teachings of the
references applied by the Examiner in the rejection under 35
U.S.C. § 103. We find that Carroll teaches a speed control
system for a gas turbine engine, which is responsive to the
speed demanded of the turbine. See Column 1, lines 57 to 60
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