Appeal No. 1999-2735 Page 5
Application No. 08/672,440
Adia teaches a tool component having an abrasive compact
layer (10) bonded to a cemented carbide substrate (12) having
a recess, filled with abrasive compact, which is V-shaped (20)
in plan (Fig. 1) or cross-shaped (40) in plan (Fig. 3).
Adia's recess (20) extends to the periphery where the
intersection of the V-shape, portion (21), "is coincident with
the periphery of the carbide substrate (12)" (column 3, lines
41-43).
Based on our analysis and review of Olmstead and claim 1,
it is our view that the only difference is that Olmstead's
recess does not have, as recited in claim 1, a central portion
and an outer shallower portion which defines, in plan, at
least one substantially wedge-shaped configuration... having a
narrow end coincident with a side surface of the component and
sides extending into the component and diverging from the
narrow end. With regard to this difference, the examiner
determined that it would have been obvious to one having
ordinary skill in the art at the time the invention was made
to utilize an outer portion comprising a wedge-shaped
configuration with the abrasive composite tool of Olmstead, as
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