Tapered bore in a pick

Details Tapered bore in a pick Tapered bore in a pick

2011-08-16

2011-08-16

Kreck, John (Department: 3672)

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Insert or tip mounting feature

C299S105000

Reexamination Certificate

active

07997661

ABSTRACT:
In one aspect of the present invention, a high impact resistant excavation pick having a super hard material is 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 frustum. A tapered bore is formed in the base end of the carbide frustum opposite the front end and a steel shank with a tapered interface is fitted into the tapered bore.

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