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.:

US 8342264 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 01, 2013

Filed:

Mar. 08, 2010
Applicants:

Gregory E. Hinshaw, Proctorville, OH (US);

Henry E. Wilson, Ironton, OH (US);

Sean Joseph Mcquerrey, South Charleston, WV (US);

Inventors:

Gregory E. Hinshaw, Proctorville, OH (US);

Henry E. Wilson, Ironton, OH (US);

Sean Joseph McQuerrey, South Charleston, WV (US);

Assignee:

J.H. Fletcher & Co., Huntington, WV (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 15/00 (2006.01); E21B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus abates noise from the operation of a drill head including a drilling element for engaging a face of a mine passage during a drilling cycle in which the drill head moves from a first position farther from the face to a second position closer to the face. The apparatus includes a collapsible barrier capable of moving between an extended condition to cover a portion of the drilling element during the formation of the borehole and a retracted condition in which the portion of the drilling element covered in the extended condition is exposed. A holder is adapted for releasably coupling with the barrier in the extended condition. Related methods are also disclosed.


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