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:
Dec. 11, 1984
Filed:
Oct. 08, 1982
Applicant:
Inventors:
Ernst-G/u/ nter Nerlich, Essen, DE;
Hans-Ferdinand Bemmerl, Herne, DE;
Peter Kr/o/ ninger, Gelsenkirchen, DE;
Assignee:
Bochumer Eisenh/u/ tte Heintzmann GmbH & Co. KG, Bochum, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D / ;
U.S. Cl.
CPC ...
405291 ; 299 43 ; 405290 ;
Abstract
A trough-shaped travelling bracket of a retracting and guiding arrangement of a mine roof support has fixing elements at its mine-face end for releasably coupling with an abutment, wherein the fixing elements are exchangeable, but fixedly connectable with a web of the travelling bracket.