Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means
Reexamination Certificate
2005-02-01
2005-02-01
Kreck, John (Department: 3673)
Mining or in situ disintegration of hard material
Hard material disintegrating machines
With mine roof-supporting means
C299S043000, C299S095000, C299S019000
Reexamination Certificate
active
06848748
ABSTRACT:
The extraction machine for underground ore extraction operations, with extraction of the extraction product by blasting has an advancing support equipment (11) and a face conveyor (18) coupled to it as well as at least one boring device (26) for the production of shot holes (23) and a loading device (27) to supply the face conveyor (18) with the blast rock loosened by blasting, whereby the boring device (26) and the loading device (27) are assigned to a common boring and loading machine (24), which can be driven along the face conveyor (18) at right angles to the direction of mining in the direction towards the rock face (20) running parallel to the direction of mining, or away from this.
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Knitzschke and Kahmann: Mining of copper shale in the Sangerhausen district; Gluckauf 126 (1990) Nr. 11/12 pp. 538-547.
Martin Harry
Paschedag Ulrich
Cook Alex McFarron Manzo Cummings & Mehler, Ltd.
DBT GmbH
Kreck John
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