Appeal No. 1999-2010
Application No. 08/684,635
appellant that Southland has nothing to do with the use of a
mold in any part of the manufacturing of a bit of any kind.
The Southland patent is related to diamond cutting elements
and the manner in which a cutting disc carrying the elements
comprises a relief formed in an outer peripheral edge of the
substrate of the disc to form a pair of cutting points
separated by the relief, and the stud of the disc includes a
channel aligned with the relief for conducting fluid to the
relief to cool and clean the cutting points. Therefore,
Southland is directed to the cooling of a bit by having a
special channel on the substrate mating with a relief within a
bit, rather than the use of a mold in the manufacturing of a
bit. Therefore, we do not agree with the examiner that the
combination of Smith and Southland teaches the obviousness of
claim 1.
The other independent claims, namely, 21, 27 and 35,
contain limitations corresponding to the limitations discussed
above in
regard to claim 1. Therefore, for the same rationale, we also
8
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007