Remote controlled high wall coal mining system
US4323280A · kind A · utility
41Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1979 |
| Grant date | Apr 6, 1982 |
| Priority date | — |
| Expiry date | Mar 27, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/302
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A high wall mining system including a continuous mining machine, a remote control station outwardly of the high wall from which extend electric cables wound on cable reels which extend to the continuous mining machine enabling the operator to control the machine based upon television pictures transmitted to the control station from television cameras on the machine and the signals from laser and sonar guidance systems provided at the control station in cooperation with elements on the continuous mining machine and an extensible and retractable vacuum air conveyor system for the coal recovered by the mining machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.