Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable horizontally
Reexamination Certificate
2006-08-28
2008-10-21
Kreck, John (Department: 3672)
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Cutter shiftable horizontally
C299S077000, C299S085100
Reexamination Certificate
active
07438365
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.
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Search Report issued for EPO application No. 05019056.
Patent Abstract of Japan, Japanese Publication No. 03262898.
Kaiser Manfred
Reich Thorsten
Schmah Peter
Studer Thomas
Herrenknecht Aktiengesellschaft
Kreck John
Welsh & Katz Ltd.
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