Invention Grant
- Patent Title: Shovel stabilizer appendage
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Application No.: US16282454Application Date: 2019-02-22
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Publication No.: US11885221B2Publication Date: 2024-01-30
- Inventor: William J. Hren
- Applicant: Joy Global Surface Mining Inc
- Applicant Address: US WI Milwaukee
- Assignee: Joy Global Surface Mining Inc
- Current Assignee: Joy Global Surface Mining Inc
- Current Assignee Address: US WI Milwaukee
- Agency: Husch Blackwell LLP
- Main IPC: E21B7/02
- IPC: E21B7/02 ; E02F9/08 ; E02F9/02

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.
Public/Granted literature
- US20190264506A1 SHOVEL STABILIZER APPENDAGE Public/Granted day:2019-08-29
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