Appeal No. 96-2623
Application No. 08/240,095
vertical adjusting screw for raising and lowering an object is
old and well known in the mechanical arts, for example, a
vertical adjusting screw is often used for raising and lowering
the height of the seat cushion of a desk chair.
For the reasons set forth supra with respect to parent claim
1, it is our opinion that based on the teachings of Johnston, an
artisan would have found it prima facie obvious that Stiff's
teaching that the concave surface 46 corresponds to the convex
surface 48 means that the radius of curvature of the concave
surface would have been slightly greater then the radius of
curvature of the convex surface. Additionally, it is our opinion
that it would have been obvious to one skilled in the art at the
time of the appellants' invention to modify Skiff's device to
include a vertical adjusting screw for raising and lowering the
height of his pressing head (e.g., lower platen) since a vertical
adjusting screw for raising and lowering an object is an old and
well known means of adjusting the height of an object and Stiff
provides alternative means for adjusting the height of his
pressing head discussed supra. The suggestion and motivation for
this modification comes not from the appellants' disclosure but
comes from the teachings of Skiff to provide means to vertically
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