US Patent 7250069 High-strength, high-toughness matrix bit bodies

Patent 7250069 was granted and assigned to Smith International on July, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Smith International

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

72500690

Patent Inventor Names

Kumar T. Kembaiyan0

Thomas W. Oldham0

Date of Patent

July 31, 2007

Patent Application Number

104648730

Date Filed

June 18, 2003

Patent Primary Examiner

Roy King

Patent abstract

A new composition for forming a matrix body which includes spherical sintered tungsten carbide and an infiltration binder including one or more metals or alloys is disclosed. In some embodiments, the composition may include a Group VIIIB metal selected from one of Ni, Co, Fe, and alloys thereof. Moreover, the composition may also include cast tungsten carbide. In addition, the composition may also include carburized tungsten carbide.