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. 07, 2015
Filed:
Jun. 17, 2013
Applicants:
David R. Hall, Provo, UT (US);
Ronald B. Crockett, Payson, UT (US);
John Bailey, Spanish Fork, UT (US);
Jeff Jepson, Spanish Fork, UT (US);
Inventors:
David R. Hall, Provo, UT (US);
Ronald B. Crockett, Payson, UT (US);
John Bailey, Spanish Fork, UT (US);
Jeff Jepson, Spanish Fork, UT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/18 (2006.01); E21C 35/183 (2006.01); E02F 9/28 (2006.01);
U.S. Cl.
CPC ...
E21C 35/183 (2013.01); E02F 9/2866 (2013.01); E02F 9/2808 (2013.01);
Abstract
In one aspect of the present invention, a tool has a wear-resistant steel base comprising a shank suitable for attachment to a driving mechanism. A planar end of a cemented metal carbide segment brazed to an interfacial surface of the base axially opposed to the shank. At least one interruption is formed in the interfacial surface.