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:
Apr. 23, 2019
Filed:
Oct. 09, 2014
Applicant:
Sandvik Intellectual Property Ab, Sandviken, SE;
Inventors:
Per Mattson, Sandviken, SE;
Magnus Persson, Sandviken, SE;
Assignee:
SANDVIK INTELLECTUAL PROPERTY, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/56 (2006.01); E21B 10/36 (2006.01); E21B 10/38 (2006.01);
U.S. Cl.
CPC ...
E21B 10/56 (2013.01); E21B 10/36 (2013.01); E21B 10/38 (2013.01);
Abstract
A percussive rock drill bit includes a plurality of peripheral gauge buttons distributed circumferentially around an axially forwardmost collar at the drill head. The gauge buttons are grouped into pairs such that the central axes of neighboring gauge buttons are aligned substantially parallel to one another and are not centered on a longitudinal axis of the bit. Enlarged flushing grooves are located at the annular collar to provide a segmented collar configuration optimized for flushing cut material rearwardly from the drill bit.