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. 14, 2012
Filed:
Aug. 04, 2011
Brett Lancaster, Boksburg, ZA;
Bronwyn Annette Roberts, Parkhurst, ZA;
Imraan Parker, Cape Town, ZA;
Roy Derrick Achilles, Bedfordview, ZA;
Brett Lancaster, Boksburg, ZA;
Bronwyn Annette Roberts, Parkhurst, ZA;
Imraan Parker, Cape Town, ZA;
Roy Derrick Achilles, Bedfordview, ZA;
Onesteel Trading Pty Ltd., Sydney, AU;
Abstract
A polycrystalline diamond abrasive element, particularly a cutting element, comprises a table of polycrystalline diamond bonded to a substrate, particularly a cemented carbide substrate, along a non-planar interface. The polycrystalline diamond abrasive element is characterized by the nonplanar interface having a cruciform configuration, the polycrystalline diamond having a high wear-resistance, and the polycrystalline diamond having a region adjacent the working surface lean in catalysing material and a region rich in catalysing material. The polycrystalline diamond cutters have improved wear resistance, impact strength and cutter life than prior art cutters.