Appeal No. 98-1310
Application 08/368,685
hydrocarbons in the downstream catalyst in figure 4 or 11"
(answer, page 4).
Nevertheless, the examiner contends that it would have
been obvious to provide such an arrangement in view of the
teachings of Adamczyk. Adamczyk, however, teaches that when a
three-way catalyst is used a computer controlled air pump will
supply sufficient air to hydrocarbon
adsorber 12 such that the oxidant contained
in the exhaust stream flowing into the
catalyst is approximately at a
stoichiometric air/fuel ratio. [Column 3,
lines 49-52; emphasis added.]
Thus, although Adamczyk teaches that supplemental air should
be added in order to maintain a substantially stoichiometric
air/fuel balance in the exhaust gases when a three-way
catalyst is used, the express teaching therein is that the
supplemental air should be added to the hydrocarbon adsorber
or trap, rather than at a point downstream of the trap as the
examiner proposes. The examiner may not pick and choose from
any one reference only so much of it as will support a given
position, to the exclusion of other parts necessary to the
full appreciation of what such reference fairly suggests to
one of ordinary skill in the art (Bausch & Lomb, Inc., v.
6
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