Appeal No. 2006-2116
Application No. 08/879,517
shaft is shifted from the axis of the saw shaft by a distance
which is greater than the radius of the circular saw blade.
Persons having ordinary skill in the art would have learned
from Ambrosio that when its motor casing is tilted in either
of opposite directions by an angle greater than or equal to
45 degrees with respect to the zero-tilt angle position, the
motor housing does not contact the workpiece base.
In light of the combined prior art teachings, we find that
persons having ordinary skill in the art would have had the
10 instruction and the motivation to make and use a desk-top cutting
machine having the design and/or construction claimed. The
problem would have been apparent to any person having ordinary
skill in the art from the acknowledge prior art devices depicted
in Figure 7 of appellant’s supporting specification or Ito’s
discussion of the state of the art and problems associated
therewith. Ito’s solution, and the recognized prior art designs
proffered by Japanese Laid-Open Utility Model Publication
No. 63-49901/Japanese Utility Model Application (OPI) No. 49901/88
commonly cited in Ito and appellant’s patent specification, rely
20 on the use of expensive beveled gears. A less expensive, yet
equally remedial solution to the recognized problem would have
20
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