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:
Dec. 03, 2002
Filed:
Feb. 05, 2001
Alfazazi Dourfaye, Paris, FR;
Varel International, Inc., Carrollton, TX (US);
Abstract
A cutting element for an earth boring bit comprises a cutting compact of a superabrasive material layer bonded to a supporting substrate. The superabrasive material layer has a pattern of radially extending ribs, the ribs extending from the peripheral surface of the layer, and a second pattern of circular ribs radially spaced from the peripheral surface and intersecting the first pattern of radially extending ribs. The supporting substrate comprises a first pattern of radially extending grooves for mating with the first pattern of radially extending ribs. In addition, the supporting substrate comprises a second pattern of circular grooves for mating with the first pattern of circular ribs. The interface between the substrate and the superabrasive material has a dome-shaped configuration.