Appeal No. 2002-0312 Page 7
Application No. 08/953,922
Absent evidence to the contrary, which has not been presented, the Hydra-scoop
snow plow blade is operated from inside the vehicle cab by means of a hard-wired
control system. There is no explicit disclosure in either reference of controlling a snow
plow blade with a wireless remote control and receiver. It is significant that the problem
to which the appellants have directed their inventive efforts, that of simplifying
installation and removal of a plow blade from a vehicle, has not been recognized in
either of the references. There is no explicit disclosure in Hydra-scoop or in Cummins
of a snow blade that can be raised, lowered and pivoted, and the examiner has
adduced no evidence that the claimed blade movements would have been inherent to
the blades disclosed in either of the references or would have been considered by the
artisan to be well-known. Nor does either reference disclose that the blade is mounted
on a carriage that is removably connected to the front of the vehicle and upon which the
adjusting mechanism is mounted. Considering these factors, we arrive at two
conclusions. The first is that we fail to perceive any teaching, suggestion or incentive
which would have led one of ordinary skill in the art to modify the Hydra-scoop snow
plow by installing a wireless remote control to operate the snow plow blade. The
second is that even if the references were combined, the result would not be the
claimed structure, for some elements clearly are not disclosed or taught in the applied
references.
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