Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate
2007-09-18
2007-09-18
Dang, Hoang (Department: 3672)
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
Reexamination Certificate
active
11162681
ABSTRACT:
The present invention includes an improved cutting element substrate for cutting elements. The cutting element substrate includes non-planar, non-linear interfaces with an abrasive layer of superhard material affixed thereto often using a high pressure high temperature press apparatus. The cutting element substrate includes a cant intersecting a first and second interfacial surface. A plurality of truncated nodules intersects the first surface and extends towards the second surface. Arcuate segments protrude out of the second surface and are radially positioned along the surface. The truncated nodules are ill-aligned with the arcuate segments proximate the truncated nodules.
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Fernandez John V.
Hall David R.
Dang Hoang
Sneddon Cameron
Wilde Tyson J
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