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:
Apr. 28, 1998
Filed:
Mar. 06, 1996
Applicant:
Inventors:
Gary Martin Flood, Canal Winchester, OH (US);
David Mark Johnson, Westerville, OH (US);
Bradley Earl Williams, Worthington, OH (US);
Assignee:
General Electric Company, Pittsfield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
1754202 ; 175432 ; 407118 ;
Abstract
An abrasive cutting element comprised of an abrasive cutting layer and a metal substrate wherein the interface therebetween has a tangential chamfer, the plane of which forms an angle of about 5.degree. to about 85.degree. with the plane of the surface of the cylindrical part of the metal substrate. The abrasive cutting layer is preferably diamond or cubic boron nitride and the metal substrate is preferably tungsten carbide.