The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 11, 1998

Filed:

Aug. 02, 1996
Applicant:
Inventors:

James L Overstreet, Webster, TX (US);

Ronald L Jones, Cleveland, TX (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
175375 ; 761084 ;
Abstract

An earth-boring bit has a bit body and at least one cutter rotatably secured to the bit body. The cutter includes a plurality of teeth formed integrally with the cutter and arranged in circumferential rows. Each tooth has inner and outer ends, leading and trailing flanks, and a crest transversely connecting the ends and flanks. A thickness of wear-resistant material is applied over the crest and at least a portion of the ends and flanks of the tooth. An extending layer of wear-resistant material is applied at the intersection of the leading flank and the outer end to provide twice the hard-facing thickness and increased wear-resistance in that area of the tooth that is subjected to the greatest wear.


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