Appeal No. 2002-1840
Application 09/134,993
THE REJECTIONS
Claim 1 stands rejected under 35 U.S.C. § 103(a) as being
unpatentable over Liebl in view of Burrus and Zaehring.
Claims 2 through 19 stand rejected under 35 U.S.C. § 103(a)
as being unpatentable over Liebl in view of Burrus, Zaehring and
Narayana.
Attention is directed to the appellant’s main and reply
briefs (Paper Nos. 15 and 17) and to the examiner’s final
rejection and answer (Paper Nos. 7 and 16) for the respective
positions of the appellant and the examiner regarding the merits
of these rejections.
DISCUSSION
Liebl, the examiner’s primary reference, discloses a gas
turbine engine comprising, in downstream serial flow
relationship, a high pressure compressor, a combustor and a high
pressure turbine. According to Liebl,
[t]he invention is directed to the venting of the
[compressor] rotor by utilizing a portion of the
[primary] stream 8 of compressed air which has passed
through the last stage of the compressor and the
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