Appeal No. 1999-2735 Page 4
Application No. 08/672,440
bonded to a substrate which is generally a cemented carbide
substrate (column 1, lines 4-8). As stated in the SUMMARY OF
THE INVENTION "a tool component comprises ... a recess
extending into the substrate from the interface, the recess
having a side wall and a base located entirely within the
carbide substrate" (column 1, lines 41-51). In the subsequent
DESCRIPTION OF EMBODIMENTS it is further disclosed that "[t]he
material-filled recess has a side wall and a base which are
both located entirely within the carbide substrate. This
means that the entire side wall and the base will be provided
and defined by the carbide substrate" (column 2, lines 7-10).
Olmstead's Figs. 1 and 2 show the tool component comprising a
cemented carbide substrate (12) having a recess (20) with side
walls (22) and a base (24) entirely located within the carbide
substrate and filled with an abrasive compact layer (10) (col.
3, lines 13-19, Figs. 1 and 2). In Figs. 5 and 6, the
embodiment relied on by the examiner, a recess (40) extends
into a substrate (32) from an interface (34). The recess (40)
is disc-shaped having side walls (42) and one step (44a).
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Last modified: November 3, 2007