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:
Oct. 19, 2010
Filed:
Dec. 17, 2007
Suresh G. Patel, The Woodlands, TX (US);
Mathews George, Houston, TX (US);
Richard J. Mcclellan, The Woodlands, TX (US);
Paul E. Pastusek, Houston, TX (US);
Innocent R. Rugashoborola, Houston, TX (US);
Nicholas J. Lyons, Houston, TX (US);
Suresh G. Patel, The Woodlands, TX (US);
Mathews George, Houston, TX (US);
Richard J. McClellan, The Woodlands, TX (US);
Paul E. Pastusek, Houston, TX (US);
Innocent R. Rugashoborola, Houston, TX (US);
Nicholas J. Lyons, Houston, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A cutting element for use in drilling subterranean formations. The cutting element includes a superabrasive table mounted to a supporting substrate. The superabrasive table includes a two-dimensional cutting face having a cutting edge along at least a portion of its periphery, and a surface comprising a chamfer extending forwardly and inwardly from proximate a peripheral cutting edge at a first acute angle of orientation of greater than about 45° with respect to the longitudinal axis of the cutting element, and to no greater than a selected depth. The chamfer may be arcuate or planar, and of a dimension sufficient to ensure that a wear flat generated during use of the cutting element remains outside the inner boundary of the chamfer within the chamfer envelope, and small enough to maintain aggressive cutting characteristics for the cutter. Drill bits and drilling tools bearing the cutting elements are also disclosed.