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. 10, 2019
Filed:
Jun. 15, 2015
Applicant:
Sandvik Intellectual Property Ab, Sandviken, SE;
Inventor:
Andreas Rindeskar, Hofors, SE;
Assignee:
SANDVIK INTELLECTUAL PROPERTY AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/38 (2006.01); E21B 10/36 (2006.01);
U.S. Cl.
CPC ...
E21B 10/38 (2013.01); E21B 10/36 (2013.01);
Abstract
A percussive rock drill bit includes a head having an annular gauge collar and a central island. An annular cutting channel is defined between the collar and the island such that specifically positioned cutting buttons are effective to create an annular ridge in the cut rock face having a reduced rock breaking resistance.