Jefferson David Mckenzie
Engineers at Nancy Dr, Salt Lake City, UT
License number
Colorado 25540
Issued Date
Feb 19, 1988
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
4573 Nancy Dr, Salt Lake City, UT 84120
Professional information
Apparatus, System, And Method For Supporting A Gate Entry For Underground Full Extraction Mining
US Patent:
2006015, Jul 20, 2006
Filed:
Nov 3, 2005
Appl. No.:
11/266550
Inventors:
Jefferson McKenzie - West Valley City UT, US
International Classification:
E21C 35/08
US Classification:
299001700
Abstract:
An apparatus, system, and method are disclosed for supporting a gate entry or a connecting entry. The apparatus includes a support member, a controller, and a vehicle. The support member is configured to selectively engage a mine roof and a mine floor within a gate entry. The controller communicates with the support member to extend the support member to engage the mine roof and mine floor and retract the support member to disengage the mine roof and mine floor. The vehicle is connected to the support member and controller and moves the support member in response to a motive force. The support member, controller, and vehicle can operate and move independent of a mining face conveyor. The present invention is reusable, provides for mine roof and mine floor support as well as support of gate entry walls. The present invention has a minimal width profile to provide support while minimizing interference with the airflow within the gate entry. In addition, the present invention forms an access passage for personnel, equipment, and airflow that remains safely open during full extraction mining operations even as load abutments shift due to full extraction mining.