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:
Aug. 01, 2017
Filed:
Dec. 07, 2012
Applicant:
Sandvik Intellectual Property Ab, Sandviken, SE;
Inventors:
Conny Seppala, Gavle, SE;
Tomas Sh Jansson, Gavle, SE;
Assignee:
SANDVIK INTELLECTUAL PROPERTY AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/36 (2006.01); E21B 17/07 (2006.01);
U.S. Cl.
CPC ...
E21B 10/36 (2013.01); E21B 17/076 (2013.01);
Abstract
A bit for a percussive hammer includes an elongated shank, a head at a first end of the shank, and an array of lengthwise extending spline portions defining outwardly extending retention lugs at or toward a further end of the shank. At least a side face of at least one lug is blended into the shank of the bit.