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 8857916 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 14, 2014

Filed:

Mar. 15, 2013
Applicant:

Highwall Mining Solutions and Repair, Llc, Summersville, WV (US);

Inventors:

Ralph Whitley, Huntersville, NC (US);

Dave Bundy, Summersville, WV (US);

Assignee:

Highwall Mining Innovations, LLC, Summerville, WV (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 29/04 (2006.01); E21F 17/00 (2006.01);
U.S. Cl.
CPC ...
E21F 17/00 (2013.01);
Abstract

A highwall mining equipment extraction and retrieval apparatus and method is disclosed. It includes remotely operable hydraulic cylinders fixed to the mining head and stabilizing arms which brace the mining platform against the face of a mine. Wire ropes extend from hydraulic cylinders, through channels in the pushbeams, through lockable blocks fixed to the mining platform, and onto storage spools. The hydraulic cylinders operate from an extended to a retracted position. When a mine collapse occurs, an operator can remotely actuate the lockable blocks and the hydraulic cylinders, thereby locking the wire rope to the platform and pulling the mining head and pushbeams towards the platform. If the obstruction remains, the locking blocks can be unlocked, the hydraulic cylinders extended from the retracted position, the excess wire rope pulled from the mine, and the process can then be repeated until the equipment is free from the obstruction.


Find Patent Forward Citations

Whitley, Ralph. (2014). Highwall mining equipment retrieval and extraction apparatus and method (U.S. Patent No. 8857916). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8857916

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…