US Patent 8028774 Thick pointed superhard material

Patent 8028774 was granted and assigned to Schlumberger on October, 2011 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Schlumberger

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

8028774

Date of Patent

October 4, 2011

Patent Application Number

12625728

Date Filed

November 25, 2009

Patent Citations Received

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US Patent D1020823 Milling bit

Patent Primary Examiner

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William P. Neuder

Patent 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.