Patent · US Active

Tool with a large volume of a superhard material

US7469756B2 · kind B2 · utility

58Cited by

11References

18Claims

0Family size

Inventors

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

Key dates

Filing date	Nov 30, 2007
Grant date	Dec 30, 2008
Priority date	—
Expiry date	Nov 30, 2027

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/5735
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In one aspect of the invention, a tool has a wear-resistant base suitable for attachment to a driving mechanism and also a hard tip attached to an interfacial surface of the base. The tip has a first cemented metal carbide segment bonded to a superhard material at a non-planar interface. A volume of the superhard material is about 75% to 150% of a volume of the first cemented metal carbide segment.

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