Advance method and apparatus for mining
US4173373A · kind A · utility
8Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1977 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | Aug 25, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C41/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mine roof-bolter machine having an extensible conveyor running therethrough operates behind a continuous miner machine. As the continuous miner advances, the roof-bolter advances from position-to-position while installing roof bolts and plates, and the extensible conveyor gives and takes the slack between the continuous miner and the roof bolter and feeds mined material to a surge car behind the roof bolter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.