Title:
AUGER FLIGHT SUPPORT FOR PLURAL AUGER COAL MINING SYSTEMS
Document Type and Number:
WIPO Patent Application WO2003069108
Kind Code:
A3
Abstract:
An auger flight support (20) for use with an augering systems (23) for mining which bores a pair of side-by-side holes through the coal seam (38) using respective augers (29). Each auger (29) includes a drilling section (32), which is followed by a series of auger flights (53) for conveying the bored coal back out of the respective hole. The auger flight support (20) includes a pair of thrust bearings (164) and housing assemblies (80) which are tied together and each supported by a respective leg (125), which lowers the friction between the auger flight and the bottom of the bore.
Inventors:
KELM WARREN (US)
Application Number:
PCT/US2003/003212
Publication Date:
August 05, 2004
Filing Date:
February 03, 2003
Export Citation:
Assignee:
KELM WARREN (US)
International Classes:
E21C25/58; (IPC1-7): E21C27/22; E21B10/44
Foreign References:
| US4036529A | 1977-07-19 | |||
| US4074778A | 1978-02-21 | |||
| US3912025A | 1975-10-14 | |||
| US3856357A | 1974-12-24 |
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