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:
Jul. 28, 2020
Filed:
Oct. 27, 2017
Applicants:
Saint-gobain Abrasives, Inc., Worcester, MA (US);
Saint-gobain Abrasifs, Conflans-Sainte-Honorine, FR;
Inventor:
Ji Wang, Shanghai, CN;
Assignee:
SAINT-GOBAIN ABRASIVES, INC./SAINT-GOBAIN ABRASIFS, Worcester, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/48 (2006.01); B28D 1/14 (2006.01); B23B 51/04 (2006.01); B28D 1/04 (2006.01); E21B 10/02 (2006.01);
U.S. Cl.
CPC ...
B28D 1/146 (2013.01); B23B 51/0406 (2013.01); B28D 1/041 (2013.01); B23B 2222/21 (2013.01); B23B 2222/44 (2013.01); B23B 2228/12 (2013.01); B23B 2251/122 (2013.01); E21B 10/02 (2013.01); E21B 10/48 (2013.01);
Abstract
A core drill bit can include a first region and a second region. The first region can include abrasive particles in a first bond matrix, and the second region can include abrasive particles in a second bond matrix. The first region is connected to the second region. A composition of the first bond matrix can be different from a composition of the second matrix. In a particular embodiment, the first bond matric can include a Co-containing material.