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:
Mar. 10, 2015
Filed:
Aug. 12, 2011
Applicant:
Robert Frushour, Ann Arbor, MI (US);
Inventor:
Robert Frushour, Ann Arbor, MI (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
B24D 3/02 (2006.01); B24D 3/18 (2006.01); E21B 10/567 (2006.01); E21B 10/573 (2006.01); B22F 7/06 (2006.01); C22C 26/00 (2006.01); B22F 5/00 (2006.01);
U.S. Cl.
CPC ...
E21B 10/567 (2013.01); E21B 10/5735 (2013.01); B22F 7/064 (2013.01); C22C 26/00 (2013.01); B22F 2005/001 (2013.01); B22F 2999/00 (2013.01);
Abstract
PDC is made using a solvent catalyst that has a melting point below that of the cobalt which is used to cement the tungsten carbide supporting substrate. The lower melting temperature allows control of the amount of catalyst that remains in the interstices after HPHT sintering since the process can be done without melting the cobalt in the substrate which would flow into and completely fill the pore volume of the diamond mass.