Appeal No. 97-2642 Page 23
Application No. 08/094,461
1071, 1074, 5 USPQ2d 1596, 1598 (Fed. Cir. 1988). Since the
subject matter of claims 12, 33 and 34 would not have been
obvious under 35 U.S.C. § 103 based on the applied prior art,
we reverse the examiner's rejection of claims 12, 33 and 34.
Claims 3, 8, 16-19, 21, 25 and 35-37
Claims 3, 8, 16 through 19, 21, 25 and 35 through 37 were
rejected under 35 U.S.C. § 103 as being unpatentable over
Raymond in view of Jeppson and McEachern as applied to claims
1, 2, 4 through 7, 10 through 16, 18, 19, 20, 22, 23, 24 and
30 through 34 above, and further in view of McConnell.
McConnell discloses a heat exchanger system for utilizing
the exhaust gases of an internal combustion engine to heat
liquid. McConnell teaches that his system is not limited in
its application to hot water type cleaning systems since the
energy obtained by way of heated liquid may be utilized in
many other applications (column 1, lines 12-15 and column 4,
lines 35-39). As shown in Figure 1, an internal combustion
engine exhaust manifold 10 has exhaust pipes 11 and 12
extending therefrom and connecting to a main heat exchanger
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