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. 18, 2009
Filed:
Dec. 09, 2004
Roy Derrick Achilles, Bedfordview, Gauteng, ZA;
Bronwyn Annette Roberts, Parkhurst, Gauteng, ZA;
Imraan Parker, Rylands Estate, Cape Town, ZA;
Brett Lancaster, Boksburg, Gauteng, ZA;
Klaus Tank, Johannesburg, Gauteng, ZA;
Roy Derrick Achilles, Bedfordview, Gauteng, ZA;
Bronwyn Annette Roberts, Parkhurst, Gauteng, ZA;
Imraan Parker, Rylands Estate, Cape Town, ZA;
Brett Lancaster, Boksburg, Gauteng, ZA;
Klaus Tank, Johannesburg, Gauteng, ZA;
Other;
Abstract
A polycrystalline diamond abrasive element, particularly a cutting element, comprises a layer of polycrystalline diamond having a working surface and bonded to a substrate, particularly a cemented carbide substrate, along an interface. The polycrystalline diamond abrasive element is characterized by using a binder phase that is homogeneously distributed through the polycrystalline diamond layer and that is of a fine scale. The polycrystalline diamond also has a region adjacent the working surface lean in catalyzing material and a region rich in catalyzing material.