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:
May. 06, 2008
Filed:
Dec. 09, 2003
Applicants:
Xian Yao, Sandy, UT (US);
David Denboer, Pleasant Grove, UT (US);
Scott Horman, Lindon, UT (US);
Inventors:
Assignee:
Smith International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for forming an ultra hard material layer is provided. The method includes disposing a metallic liner inside the periphery of a refractory metal enclosure, introducing ultra hard material feed stock into the enclosure, and sintering using HPHT processing and cooling to form the ultra hard material layer, substantially free of peripheral cracking, chipping and fracturing.