Appeal No. 96-3202
Application No. 08/183,464
portion and the lobe portion of the cam. Thus, the
differences between Shiraya and claim 14 are the same as
recited above with respect to claim 1 with the additional
difference being the cam has a base portion and a lobe portion
in which the solid film lubricant is impregnated and anchored
in the porosity of the surfaces of the base portion and the
lobe portion of the cam.
In applying the above noted test for obviousness, we
reach the conclusion that it would have been obvious to one of
ordinary skill in the art at the time of the appellants'
invention to
mount Shiraya's cam on a cam shaft, to provide Shiraya's cam
with a base portion and a lobe portion and to provide the
outer surface of the cam (i.e., the base portion and the lobe
portion) with a solid film lubricant as suggested by Oda to
provide excellent wear-resisting and friction-resisting
performance even at high temperature with dry conditions in
which engines are used. Additionally, it would have been
obvious to one of ordinary skill in the art at the time of the
appellants' invention to utilize the solid film lubricant of
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