Appeal No. 1997-0907
Application 08/291,642
analogous to the claimed yoke, essentially uses the yoke to
provide some form of biasing means as identified in the
paragraph at the bottom of column 3, the use of the separate
magnetic screw holding member 8 in a similarly structured
device in Figures 1 through 3 of Shimada would have led to an
obvious incorporation into the structure of Castor.
Furthermore, the third embodiment in Shimada's Figures 4
and 5 describes in two manners physically separately located
biasing means from the yoke 3 in these figures. The physical
arrangement of the permanent magnet 23 with respect to the
magnetic adjusting screw 28 on the plate 20 not only indicates
that they are physically separate from the yoke 3, they
provide the claimed biasing function, and each separately may
be considered to be perpendicular to the movable magnet, which
in the Figures 4 and 5 embodiment of Shimada comprises the
movable coil or rotor 21. Finally, the adjustability feature
at the end of independent claim 4 on appeal is clearly taught
in all embodiments of Shimada.
On the one hand, while Shimada's adjustability features
provide an improvement over the fixed position of the angular
bias magnet 30 in Wang, the teaching value of Shimada to the
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