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. 18, 2015

Filed:

Nov. 15, 2012
Applicant:

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

Inventor:

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

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/60 (2006.01); E21B 10/567 (2006.01); E21B 10/54 (2006.01);
U.S. Cl.
CPC ...
E21B 10/5673 (2013.01); E21B 10/54 (2013.01);
Abstract

A roof-bolt drill bit. The roof-bolt drill bit may include a bit body rotatable about a central axis and a cutting element coupled to the bit body. The bit body may comprise a forward end, a rearward end axially spaced away from the forward end, and an internal passage defined within the bit body, with the internal passage extending from a rearward opening defined in the rearward end of the bit body through at least a portion of the bit body. A fluid port is configured to direct fluid from the internal passage through a port opening in a direction that forms an angle with respect to a forward direction of the central axis.


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