Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Plural heads moving relative to each other
Reexamination Certificate
2006-01-26
2009-12-15
Kreck, John (Department: 3672)
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Plural heads moving relative to each other
Reexamination Certificate
active
07631942
ABSTRACT:
The invention relates to a device for milling rock or other materials. Said device comprises a spindle drum (13) which is rotatably mounted on a drum support (11) and in which a plurality of tool spindles (22) are received to be rotatable about spindle axes in a manner off-center of the drum axis (43). The tool spindles, at their ends projecting from the spindle drum, carry machining tools (41). The invention is characterized in that at least two of the tool spindles can be driven by a common gear drive which comprises output gears (24), permanently disposed on the tool spindles, and a common drive element (25) interacting with the output gears. The drive element and the spindle drum (13) can be rotated in relation to each other.
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Bechem Ulrich
Raschka Joachim
Steinberg Jens
DBT GmbH
Fay Sharpe LLP
Kreck John
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