Appeal No. 1998-2537
Application 08/680,602
(brief, pp. 8 and 9). We agree with the appellant that Graham
and Huber, singly or in combination, do not teach or suggest
the step of
clamping a flat “green” wheel between depressed center metal
plates to form a depressed center “green” wheel as claimed in
appellant’s claims on appeal. In fact, Graham states in col.
4, lines 17-19, that “the hub or center portion 5 may be
offset from the plane of the grinding portion of the disc
during molding” (emphasis added). Col. 9, lines 46-48, states
that “[i]t is also within the spirit of the invention to mold
the grinding wheels using either post curing or cold pressing
techniques” (emphasis added). Then in col. 9, lines 57-61,
Graham states that “where the wheels are cold pressed, the
lay-ups . . . [are] pressed at room temperatures for 1 to 3
minutes . . . [and] then removed from the press and stacked on
a metal dowel rod . . . with metal plates (flat for cutoff
wheels or shaped for depressed center wheels)” (emphasis
added) and then subjected to pressure applied to the stack so
8
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