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.

Date of Patent:
Aug. 19, 2014

Filed:

Sep. 26, 2013
Applicant:

Dover Bmcs Acquisition Corporation, Orem, UT (US);

Inventors:

Russell Roy Myers, Provo, UT (US);

E. Sean Cox, Spanish Fork, UT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/567 (2006.01); E21B 10/573 (2006.01);
U.S. Cl.
CPC ...
Abstract

A roof-bolt drill bit has a bit body that is rotatable about a central axis, a coupling pocket defined in the bit body, and at least one cutting element mounted to the bit body, the at least one cutting element having a non-cylindrical periphery. The at least one cutting element includes a cutting face, a cutting edge adjacent the cutting face, a back surface opposite the cutting face, and a side surface extending between the cutting edge and the back surface, at least a portion of the side surface of the at least one cutting element being bonded to a side surface of the coupling pocket. The roof-bolt drill bit includes a coupling projection extending from the at least one cutting element, the coupling projection being bonded to a coupling recess defined in the bit body.


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