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:
Apr. 01, 2008
Filed:
Aug. 28, 2006
Christopher C. Beuershausen, Spring, TX (US);
Raul E. Lema, The Woodlands, TX (US);
Ronald Hales, Cleveland, TX (US);
Don Q. Nguyen, Houston, TX (US);
Gregory L. Ricks, Spring, TX (US);
Chih C. Lin, Spring, TX (US);
Terry J. Koltermann, The Woodlands, TX (US);
Mark E. Morris, Conroe, TX (US);
Chris M. Mccarty, Houston, TX (US);
Ronald L. Jones, New Waverly, TX (US);
James L. Overstreet, Tomball, TX (US);
Rudolf Carl Otto Pessier, The Woodlands, TX (US);
Christopher C. Beuershausen, Spring, TX (US);
Raul E. Lema, The Woodlands, TX (US);
Ronald Hales, Cleveland, TX (US);
Don Q. Nguyen, Houston, TX (US);
Gregory L. Ricks, Spring, TX (US);
Chih C. Lin, Spring, TX (US);
Terry J. Koltermann, The Woodlands, TX (US);
Mark E. Morris, Conroe, TX (US);
Chris M. McCarty, Houston, TX (US);
Ronald L. Jones, New Waverly, TX (US);
James L. Overstreet, Tomball, TX (US);
Rudolf Carl Otto Pessier, The Woodlands, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An earth-boring bit has a bit body that includes head sections, each having depending bit legs with a circumferentially extending outer surface, a leading side, and a trailing side. A bearing shaft depends inwardly from each of the bit legs for mounting a cutter. The bit includes a beveled surface formed at a junction of the leading side and the outer surface of each bit leg. The beveled surface is angled relative to a radial plane emenating from the axis of the bit. The angle of the beveled surface is at least 20 degrees, and extends to an inner surface of the bit leg. The bit can also have a layer of hardfacing on the leading, trailing and shirttail surfaces of the bit leg. A diversion finger of hardfacing extends circumferentially to direct cuttings.