Appeal No. 97-1078
Application 08/448,056
application. We reverse.2
The invention relates to “a honeycomb regenerator for
recovering a waste heat in an exhaust gas by passing the
exhaust gas and gas to be heated alternately therethrough”
(specification, page 1). Claim 12 is illustrative and reads
as follows:
12. A honeycomb regenerator for recovering waste heat
from exhaust gas, comprising:
a stacked assembly including at least one first honeycomb
body and at least one second honeycomb body stacked on said at
least one first honeycomb body, each honeycomb body including
a plurality of passages extending along an axial direction of
the stacked assembly, said at least one first honeycomb body
comprising a ceramic material having anti-corrosive
properties, and said at least one second honeycomb body
comprising a ceramic material having a main crystal phase of
cordierite, said stacked assembly including first and second
opposite axial ends respectively forming an inlet for hot
exhaust gas and an inlet for cold gas, wherein said at least
one second honeycomb body is provided downstream of said at
least one first honeycomb body along a flow direction of the
hot exhaust gas.
The items relied upon by the examiner as evidence of
obviousness are:
Davies et al. (Davies) 3,326,541 Jun. 20,
1967 Ogawa et al. (Ogawa) 4,489,774 Dec.
25, 1984
2Claims 14 and 15 have been amended subsequent to final
rejection.
2
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