Fixed cutter bit and blade for a fixed cutter bit and...

Details Fixed cutter bit and blade for a fixed cutter bit and... Fixed cutter bit and blade for a fixed cutter bit and...

2011-04-19

2011-04-19

Thompson, Kenneth (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

C175S412000, C175S413000

Reexamination Certificate

active

07926597

ABSTRACT:
A blade, which is useful on a tool that impinges earth strata, that has a blade body with a leading surface. The blade body has a first portion defining at least a part of the leading surface and a second portion. The first portion is made of a first material composition and the second portion is made of a second material composition.

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Santhanam, A. T. et al, “Cemented Carbides” Metals Handbook, The Materials Information Society, pp. 950-978.

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