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.
Patent No.:
Date of Patent:
Aug. 17, 2010
Filed:
Nov. 10, 2005
Redd H. Smith, The Woodlands, TX (US);
John H. Stevens, Spring, TX (US);
James L. Duggan, Friendswood, TX (US);
Nicholas J. Lyons, Houston, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
Jared D. Gladney, Katy, TX (US);
James A. Oxford, Magnolia, TX (US);
Benjamin J. Chrest, Conroe, TX (US);
Redd H. Smith, The Woodlands, TX (US);
John H. Stevens, Spring, TX (US);
James L. Duggan, Friendswood, TX (US);
Nicholas J. Lyons, Houston, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
Jared D. Gladney, Katy, TX (US);
James A. Oxford, Magnolia, TX (US);
Benjamin J. Chrest, Conroe, TX (US);
Baker Huges Incorporated, Houston, TX (US);
Abstract
Methods of forming bit bodies for earth-boring bits include assembling green components, brown components, or fully sintered components, and sintering the assembled components. Other methods include isostatically pressing a powder to form a green body substantially composed of a particle-matrix composite material, and sintering the green body to provide a bit body having a desired final density. Methods of forming earth-boring bits include providing a bit body substantially formed of a particle-matrix composite material and attaching a shank to the body. The body is provided by pressing a powder to form a green body and sintering the green body. Earth-boring bits include a unitary structure substantially formed of a particle-matrix composite material. The unitary structure includes a first region configured to carry cutters and a second region that includes a threaded pin. Earth-boring bits include a shank attached directly to a body substantially formed of a particle-matrix composite material.