Appeal No. 97-2642 Page 13
Application No. 08/094,461
(1) replace Raymond's oil heating system (i.e., the pressure
drop across the restrictor 82) with a heating system utilizing
exhaust gases, or (2) supplement Raymond's oil heating system
(i.e., the pressure drop across the restrictor 82) with a
preliminary heating system utilizing exhaust gases, as
suggested and taught by the heat recovery muffler system of
McEachern for the advantage of recovering and utilizing the
exhaust heat energy that would otherwise be lost to the
atmosphere especially in view of Jeppson's teaching of
utilizing hot exhaust gas to heat a screed.
We have, of course, considered all of the appellant's
arguments. However, we are not persuaded that the examiner
erred in rejecting the appealed claims.
On pages 25-29 of the brief and pages 5-6 of the reply
brief, the appellant specifically calls to our attention the
issuance of U.S. Patent No. 5,308,190, for the purpose of
showing the nonobviousness of the claimed invention. We
recognize the issuance of U.S. Patent No. 5,308,190 with
claims identical to appealed claims 20 through 25 and 30
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