Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine
Reexamination Certificate
2003-12-11
2008-11-25
Singh, Sunil (Department: 3672)
Mining or in situ disintegration of hard material
Automatic control; signaling or indicating
Of hard material disintegrating machine
C405S302000
Reexamination Certificate
active
07455368
ABSTRACT:
A longwall support control for controlling the movements of the longwall support units and the advance heading in the longwall of a mine comprises a plurality of control units, of which a separate mining shield control device is locally and operationally associated to each longwall support unit. Each mining shield control device comprises a multi-channel radio transceiver, such that the mining shield control device is in a simultaneous transmit and receive mode with a decentralized operating device for receiving control signals and for transmitting inspection data. The mining shield control devices may be interconnected and each mining shield control device may include an amplifier.
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Kussel Willi
Rahms Peter
Alston & Bird LLP
Singh Sunil
Tiefenbach Control Systems GmbH
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