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. 23, 2014
Filed:
May. 06, 2008
Applicants:
Geoffrey John Davies, Springs, ZA;
Gerrard Peters, Springs, ZA;
Inventors:
Geoffrey John Davies, Springs, ZA;
Gerrard Peters, Springs, ZA;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 3/06 (2006.01); C22C 26/00 (2006.01);
U.S. Cl.
CPC ...
B01J 3/062 (2013.01); C22C 26/00 (2013.01); B01J 2203/062 (2013.01); B01J 2203/0685 (2013.01); B01J 2203/0655 (2013.01);
Abstract
A method of producing a PCD body includes the step of providing a region of coarser diamond particles between a source of binder phase and a region of fine grained diamond particles having a particle size less than 2 μm. The binder phase is caused to infiltrate the diamond mass through the region of coarser diamond particles under elevated temperature and pressure conditions suitable to produce PCD. The invention further provides for a PCD diamond composite manufactured by the method of the invention wherein the PCD body is substantially free of abnormal diamond growth.