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:
Sep. 17, 2013
Filed:
Oct. 19, 2009
J. Daniel Belnap, Pleasant Grove, UT (US);
Anthony Griffo, The Woodlands, TX (US);
Peter Thomas Cariveau, Spring, TX (US);
Loel Corbett, Saratoga Springs, UT (US);
Yahua Bao, Orem, UT (US);
Gerald Demenna, Bronx, NY (US);
J. Daniel Belnap, Pleasant Grove, UT (US);
Anthony Griffo, The Woodlands, TX (US);
Peter Thomas Cariveau, Spring, TX (US);
Loel Corbett, Saratoga Springs, UT (US);
Yahua Bao, Orem, UT (US);
Gerald Demenna, Bronx, NY (US);
Smith International, Inc., Houston, TX (US);
Abstract
A method for making a thermally stable cutting element may include forming an acid mixture containing two different acid species by combining an acid solution and at least one acid-forming compound, wherein the at least one acid-forming compound is provided in solid form, and wherein the at least one acid-forming compound produces an acid that is different than the acid solution; treating at least a portion of a sintered diamond body by placing the sintered diamond body in the acid mixture, wherein the sintered diamond body comprises: a matrix phase of bonded-together diamond grains; a plurality of interstitial regions dispersed within the matrix phase; and a metal material disposed within a plurality of the interstitial regions; wherein the treating removes the metal material from at least a portion of the plurality of interstitial regions; and removing the sintered diamond body from the acid mixture after a predetermined length of time, wherein at least a portion of the diamond body removed from the acid mixture is substantially free of the metal material and is a thermally stable diamond body.