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:
Sep. 13, 2022
Filed:
Aug. 07, 2015
Applicant:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Inventors:
Arnold Law, Minneapolis, MN (US);
Owen J. Warr, Muskego, WI (US);
Assignee:
Joy Global Surface Mining Inc, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/16 (2006.01); F04C 18/16 (2006.01); E21B 7/02 (2006.01); F04C 29/00 (2006.01);
U.S. Cl.
CPC ...
E21B 21/16 (2013.01); E21B 7/02 (2013.01); E21B 7/022 (2013.01); F04C 18/16 (2013.01); F04C 29/005 (2013.01); F04C 2210/1005 (2013.01); F04C 2270/0525 (2013.01);
Abstract
A drill rig includes a base, a drill tower coupled to and extending from the base, a drill pipe coupled to and supported by the drill tower, an air compressor coupled to the base, a prime mover coupled to the air compressor, and a fluid coupling disposed between and coupled to both the prime mover and the air compressor.