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:
Feb. 24, 2026
Filed:
Dec. 18, 2022
Applicant:
Diarotech S.a., Fleurus, BE;
Inventors:
Robert Delwiche, Uccle, BE;
Etienne Lamine, Court-Saint-Etienne, BE;
Assignee:
DIAROTECH S.A., Fleurus, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/573 (2006.01);
U.S. Cl.
CPC ...
E21B 10/5735 (2013.01);
Abstract
The invention relates to a rock-cutting tool and a method for manufacturing this tool, which comprises knives comprising a layer of polycrystalline synthetic diamond (PSD), a diamond impregnation layer with diamond particles and bonding cobalt, characterized in that the PSD layer is supported directly, along a planar interface, on the diamond impregnation layer whose interface surface is planar by machining and with which the diamond particles are flush.