Control mechanism for the extension units in the longwall face of a mine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 25, 2008
Grant Date -
Jul 20, 2006
app pub date -
Dec 11, 2003
filing date -
Dec 21, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully