US Patent 7559381 Surface textures for earth boring bits

Patent 7559381 was granted and assigned to Baker Hughes on July, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Baker Hughes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7559381

Date of Patent

July 14, 2009

Patent Application Number

11760892

Date Filed

June 11, 2007

Patent Primary Examiner

‌

William P. Neuder

Patent abstract

A texture pattern is applied to bearing surfaces of earth-boring bits, especially the bearings of earth boring bits of the roller cutter variety. The textured surface that may be applied to either or both sides of the thrust washer faces, bearing faces, inlays, or thrust shoulders, or a combination thereof.