The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2002
Filed:
Aug. 08, 2000
Willy Kussel, Werne, DE;
Tiefenbach Bergbautechnik GmbH, Essen, DE;
Abstract
In a control system for the longwall support with a plurality of hydraulically actuated supports (mining shields), which are each automatically rearranged in the sense of robbing, advancing, and setting as a function of the position of the mining machine (coal cutter or plow), the position of the mining machine is automatically signaled to the mining shield control system. To this end, the mining machine is equipped with a position signaler. A microprocessor ( ), which receives the signals of the position signaler, converts the signals into position signals and/or signals of the direction of movement. A radio set ( ) transmits the position signals and/or signals of the direction of movement to radio receivers ( ), which are distributed over the mining section and connected to the mining shield control system ( ) for converting the position signals and/or signals of the direction of movement into signals for rearranging the mining shields (longwall support devices ).