Patent · US Active

Press-fit pick

US7396086B1 · kind B1 · utility

79Cited by

97References

19Claims

0Family size

Inventors

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

Key dates

Filing date	Apr 3, 2007
Grant date	Jul 8, 2008
Priority date	—
Expiry date	Apr 3, 2027

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/1831
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In one aspect of the invention, a pick comprises a shank attached to a base of a steel body, a cemented metal carbide core press fit into the steel body opposite the shank, and an impact tip bonded to a first end of the core opposite the shank. The impact tip comprises a superhard material opposite the core, and the core comprises a second end and a largest diameter. A distance through the body from the shank to the second end of the core is less than the largest diameter of the core.

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