Pick assembly

Details Pick assembly Pick assembly

2007-08-24

2009-12-29

Kreck, John (Department: 3672)

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Rolling or rotatable bit

C299S104000

Reexamination Certificate

active

07637574

ABSTRACT:
A high impact resistant pick in a holder having a super hard material bonded to a cemented metal carbide substrate at a non-planar interface. The cemented metal carbide substrate is bonded to a front end of a cemented metal carbide bolster. A bore is formed in a base end of the carbide bolster generally opposed to the front end. A steel shank being fitted into the bore of the bolster at a bolster end of the shank, and a portion of the shank is disposed within a bore of the holder at a holder end of the shank.

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