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:
Jun. 14, 2022
Applicant:
Sandvik Mining and Construction Tools Ab, Sandviken, SE;
Inventors:
Ioannis Arvanitidis, Vastberga, SE;
Mirjam Lilja, Vastberga, SE;
Assignee:
Sandvik Mining and Construction Tools AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 1/06 (2006.01); C22C 29/08 (2006.01); E21C 35/183 (2006.01);
U.S. Cl.
CPC ...
C21D 1/06 (2013.01); C22C 29/08 (2013.01); E21C 35/1835 (2020.05);
Abstract
A method of treating a cemented carbide insert for rock drilling and mineral cutting is provided. The insert includes a core of cemented carbide and a surface zone of cemented carbide, wherein the core further contains eta-phase and the surface zone is free of eta-phase. The mining insert is subjected to a surface hardening process, wherein the surface hardening process is executed at an elevated temperature of or above 50° C.