Patent · US Active

Thick pointed superhard material

US8028774B2 · kind B2 · utility

24Cited by

120References

17Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

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

Key dates

Filing date	Nov 25, 2009
Grant date	Oct 4, 2011
Priority date	—
Expiry date	Nov 25, 2029

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/5676
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having a radius of curvature of 0.050 to 0.125 inches. The superhard material also has a thickness of 0.100 to 0.500 inches from the apex to a central region of the cemented metal carbide substrate. The diamond material comprises a 1 to 5 percent concentration of binding agents by weight.

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