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:
Jul. 09, 2019
Filed:
Feb. 03, 2016
Applicant:
Sandvik Intellectual Property Ab, Sandviken, SE;
Inventors:
Rasmus Hemph, Gavle, SE;
Conny Kraft, Sandviken, SE;
Assignee:
SANDVIK INTELLECTUAL PROPERTY AB, Sandviken, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/38 (2006.01); E21B 10/567 (2006.01);
U.S. Cl.
CPC ...
E21B 10/38 (2013.01); E21B 10/567 (2013.01);
Abstract
A rock drill bit includes a head provided at one end of an elongate shank. A plurality of fluid flushing passageways extend axially from an internal bore extending through the shank with at least one fluid flushing passageway having an exit end at the front face formed as an elongate slot having a length greater than a width to facilitate the rearward transport of cut rock fragment.