Patent · US Expired

Control mechanism for the extension units in the longwall face of a mine

US7455368B2 · kind B2 · utility

0Cited by

5References

5Claims

0Family size

Assignee

TIEFENBACH CONTROL SYSTEMS GMBH · DE

Inventors

Willi Kussel · Werne, DE
Peter Rahms · Billerbeck, DE

Key dates

Filing date	Dec 11, 2003
Grant date	Nov 25, 2008
Priority date	—
Expiry date	Dec 11, 2023

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21D23/148
WIPO fieldCivil engineering
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.