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:
Aug. 01, 1989
Filed:
Mar. 17, 1987
Stephen G Southland, Houston, TX (US);
Diamant Boart-Stratabit (USA) Inc., Houston, TX (US);
Abstract
A rotary drill bit contains a plurality of cutting elements. Each cutting element includes a stud and a cutting disk mounted on the stud. The cutting disk comprises a substrate and a diamond layer bonded to the substrate. The cutting disk comprises a relief formed in an outer peripheral edge of the substrate and diamond layer at a formation-contacting point of the diamond layer, to form a pair of cutting points separated by the relief. The stud includes a channel aligned with the relief for conducting fluid to the relief to cool and clean the cutting points. The stud may include a fluid passage for conducting drilling fluid directly to the channel.