Appeal No. 2004-1231
Application 09/481,224
a side view of Appellants’ apparatus. The apparatus comprises an
upper platform 44, a lower platform 46, a DC motor 48 for
rotating the upper platform 44, a DC motor 50 for rotating the
lower platform 46, and means 52 for moving the upper platform 44
in a vertically up-and-down position to apply a pressure between
the upper platform 44 and the lower platform 46. Appellants’
specification, page 18, last paragraph. Once a suitable pressure
is applied, a locking device 54 locks the position of the upper
platform 44. The upper platform 44 is rotated in a first
direction, while the lower platform 46 is rotated in a second
direction that is opposite to the first direction. As shown in
Figs. 3B and 3C, a diamond disc 30 for pre-conditioning is
mounted to a flat disc 56 of the upper platform 44 by two screws
62 inserted into mounting holes 64 provided in the flat disc 56.
A shaft 58 connected to DC motor 48 by pulley and belt rotates
the flat disc 56 and the conditioning disc 30. See Appellants’
specification, page 20. As shown in Fig. 3A, the polishing pad
60 is mounted on the lower platform 46 in order to engage with
the conditioning disc 30. See Appellants’ specification, page
19, last paragraph.
Appellants’ method comprises the steps of mounting the
conditioning disc 30 to the upper platform 44, mounting the
2
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