Patent · US Active

Pick assembly

US7600823B2 · kind B2 · utility

50Cited by

100References

25Claims

0Family size

Inventors

David R. Hall · Provo, US
Ronald B. Crockett · Payson, US
Scott Dahlgren · Alpine, US
Jeff Jepson · Spanish Fork, US

Key dates

Filing date	Aug 24, 2007
Grant date	Oct 13, 2009
Priority date	—
Expiry date	Jan 17, 2028

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/188
WIPO fieldCivil engineering
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.