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:
Dec. 22, 2020
Filed:
Apr. 19, 2019
Applicant:
Joy Global Surface Mining Inc, Milwaukee, WI (US);
Inventors:
Joseph Colwell, Hubertus, WI (US);
Joshua Vizanko, Saukville, WI (US);
Donald Daniel, East Troy, WI (US);
Owen Warr, Muskego, WI (US);
Assignee:
Joy Global Surface Mining Inc, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/16 (2006.01); E02F 9/20 (2006.01);
U.S. Cl.
CPC ...
E02F 9/163 (2013.01); E02F 9/2058 (2013.01);
Abstract
A mobile mining machine includes a base with a deck and a counterweight box, a hoist drum supported on the deck, a motor drivably coupled to the hoist drum, a main transformer configured to supply power to the motor, an auxiliary transformer, and an electrical room coupled to the base. The main transformer and the auxiliary transformer are positioned inside the electrical room, and the electrical room contains at least one unguarded electrical connection.