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:
Jan. 30, 2024

Filed:

Feb. 22, 2019
Applicant:

Joy Global Surface Mining Inc, Milwaukee, WI (US);

Inventor:

William J. Hren, Wauwatosa, WI (US);

Assignee:

Joy Global Surface Mining Inc, Milwaukee, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/02 (2006.01); E02F 9/08 (2006.01); E02F 9/02 (2006.01);
U.S. Cl.
CPC ...
E21B 7/024 (2013.01); E02F 9/085 (2013.01); E02F 9/02 (2013.01);
Abstract

A mining machine includes a base having two drive tracks configured to rest on a ground surface and to move the mining machine along a first direction. The drive tracks each have a length along the first direction between a front end of the drive track and a rear end of the drive track. The mining machine further includes a carbody that extends between the two drive tracks, a turntable coupled to the carbody that defines an axis of rotation, and a stabilizer appendage coupled to the carbody. The stabilizer appendage extends forward from the carbody along the first direction and includes a roller or plate to contact the ground surface and provide stabilizing support during a digging operation. The axis of rotation is positioned closer to the front end of the drive tracks than the rear end of the drive tracks.


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