Appeal No. 96-1003
Application No. 08/115,791
The examiner relies upon the following references as
evidence of obviousness:
Anwer et al. (Anwer) 4,017,272 Apr. 12, 1977
Patel et al. (Patel) 4,057,402 Nov. 8, 1977
Nack et al. (Nack) 4,154,581 May 15, 1979
Patel et al. (Patel '758) 4,315,758 Feb. 16, 1982
Reh et al. (Reh) 4,347,064 Aug. 31, 1982
Appellant's claimed invention is directed to a method of
gasifying carbonaceous material in a single fluidized bed
reactor. The method entails, inter alia, returning separated
unreacted carbonaceous material to an oxidation zone that is
below the point of introduction of the carbonaceous feed
material, and recycling separated inert particles to the
oxidation zone of the reactor in order to carry sufficient
heat from the oxidation zone into the reduction zone where the
carbonaceous material is pyrolyzed into gaseous material.
Appealed claims 12-31 stand rejected under 35 U.S.C.
§ 112, first and second paragraphs. The appealed claims also
stand rejected under 35 U.S.C. § 103 as being unpatentable
over Patel in view of Anwer, Reh, Nack and Patel '758.
We consider first the rejection of the appealed claims
under 35 U.S.C. § 112, first and second paragraphs.
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