Mining device
US7438365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2006 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Aug 28, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D9/1093
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mining device for subsurface extraction of raw materials off rocks includes bracing means for the reversible bracing of the mining device in a hollow space, a frame, and tunneling means stationarily connected with the bracing means, whereby the frame is movable by the tunneling means in a predefined direction. A rotatable roller is arranged on the frame, at the circumference of which cutting tools and clearing devices are arranged such that a rectangular mining cross-section can be created and such that the mining device and also the frame of the mining device is movable into a mining tunnel created by these cutting tools.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.