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. 08, 1982
Filed:
Feb. 11, 1980
Applicant:
Inventors:
William H Daniels, Delaware, OH (US);
John B Cheatham, Jr, Houston, TX (US);
Assignee:
General Electric Company, Worthington, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175329 ; 175410 ;
Abstract
A fixed cutting tool shape for improved rock drilling performance of drag-type rotary bits includes a cemented tungsten carbide cutter body and a plow-shaped cutter element. In a preferred embodiment, the cutter element is a composite compact of polycrystalline diamond on a cemented tungsten carbide substrate, and defines a generally V-shaped cutter to create a plowing action and direct rock ship flow away from the working surface.