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:
Jun. 14, 2016
Filed:
Oct. 12, 2011
Applicant:
Harold A. Sreshta, Conroe, TX (US);
Inventor:
Harold A. Sreshta, Conroe, TX (US);
Assignee:
NATIONAL OILWELL DHT, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 3/10 (2006.01); B24D 3/06 (2006.01); C22C 1/00 (2006.01); E21B 10/43 (2006.01); B24D 18/00 (2006.01); B24D 99/00 (2010.01); B22F 3/26 (2006.01); C22C 29/08 (2006.01); C22C 1/05 (2006.01); C22C 1/10 (2006.01); B22F 5/00 (2006.01);
U.S. Cl.
CPC ...
B24D 3/06 (2013.01); B22F 3/26 (2013.01); B24D 18/0009 (2013.01); B24D 99/005 (2013.01); C22C 1/00 (2013.01); C22C 1/051 (2013.01); C22C 1/1036 (2013.01); C22C 29/08 (2013.01); E21B 10/43 (2013.01); B22F 2005/001 (2013.01);
Abstract
Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second pre-infiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a carbide which comprises at least 0.5 weight % of a binder and at least about 1% porosity. The composite material further comprises an infiltrant.