Highwall mining apparatus
US5692807A · kind A · utility
34Cited by
32References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1995 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Aug 9, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F13/083
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for mining aggregate material from a partially exposed seam adjacent a bench on a surface mine and which extends from the bench at an elevation and angle relative to the bench, The apparatus includes a self-propelled mining machine for dislodging aggregate material from the seam and conveying apparatus that is attached to the self-propelled mining machine for conveying the dislodged material to a location remote from the seam. The apparatus further includes a guidance assembly for selectively orienting the mining machine and the conveying apparatus at a predetermined attack angle that corresponds to the seam angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.