Telecommunications – Transmitter and receiver at separate stations – With control signal
Patent
1987-08-17
1989-09-26
Tarcza, Thomas H.
Telecommunications
Transmitter and receiver at separate stations
With control signal
455 40, 299 1, 299 30, E21C 3524, H01B 1302
Patent
active
048706973
ABSTRACT:
A two-way communication system for transmitting command signals to and receiving operating data from a winning machine utilized in underground mining operations. The system includes a send-receive facility positioned remote from the winning machine for transmitting command information to the winning machine. A receiving means is positioned at the winning machine for receiving signals sent by the send-receive facility, and a transmitting means is positioned at the winning machine for transmitting signals corresponding to operating data of the winning machine. The send-receive facility receives the information transmitted by the transmitting means, and a separable memory is separably attached to the send-receive facility for storing such operating data and the command information. Because the memory is separable, the memory may be removed to allow the data contained therein to be analyzed at a remote location.
REFERENCES:
patent: 3362750 (1968-01-01), Carnegie
patent: 3900878 (1975-08-01), Tsao
patent: 3906504 (1975-09-01), Guster et al.
patent: 3922015 (1975-11-01), Poundstone
patent: 4053182 (1977-10-01), Nelson
patent: 4167290 (1979-09-01), Yamazaki et al.
patent: 4367900 (1983-01-01), Trumper
Warner, E. M., "Cable & Wireless Remote Control of Continuous Miners", Mining Congress Journal, Oct. 1974, pp. 34-39.
Gebr. Eickhoff Maschienenfabrik u. EisengieBerei mbH
Poff Clifford A.
Sotomayor John B.
Tarcza Thomas H.
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