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:
Sep. 10, 1996
Filed:
Mar. 31, 1995
Applicant:
Inventors:
Gerhard Merten, L unen, DE;
Thomas Hoelken, Bergkamen, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C / ; E21C / ;
U.S. Cl.
CPC ...
299-11 ; 299-16 ; 299 3408 ;
Abstract
According to the invention, automatic adjustment of the cutting horizon of a cutter installation or other mining installation is effected with the aid of recognition sensors which detect the footwall rock interface and which are disposed distributed over the length of the cutter or machine guide, wherein the measuring signals from the recognition sensors are acquired by an electronic evaluation and control unit and are utilized in the sense of automatically controlling the adjusting cylinders.