Appeal No. 2006-2116
Application No. 08/879,517
and Ushiwata et al., U.S. Patent 5,425,294, col. 1, l. 34-49,
citing the same Japanese Utility Model Application (OPI) No.
49901/88), that the solution to the problem at hand was expensive.
The inventor of the invention presently claimed acknowledged
that beveled gears are an “expensive means for motive power
transmission” (Ushiwata et al., U.S. Patent 5,425,294, col. 1,
l. 44-46). Ito disclosed that, when the motor shaft is positioned
parallel to the saw blade, “the gear train must involve a number
of parts and consequently becomes costly” (Ito, col. 1, l. 29-30).
10 Persons having ordinary skill in the art would have learned
from Johnson that a cutting machine with the driving motor shaft
positioned parallel to the saw blade shaft was capable of, and
could be used for, multiple angle cutting at angles at least
45 degrees to either side of zero-tilt (1) without the driving
motor housing abutting the workpiece base, and (2) without turning
the workpiece around. See Johnson’s composite driving motor 41,
drive train 43, and cutting member 19 (Johnson, col. 5, l. 52-55).
Johnson describes the “+45O capability of the cutting member
positioning mechanism 17” (Johnson, col. 5, l. 13-15; col. 7,
20 l. 9-12) associated with Johnson’s composite. Whether or not
persons having ordinary skill in the art would have understood
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