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:
Jun. 01, 1976
Filed:
Jan. 23, 1975
Gunter Blumenthal, Westerholt, DT;
Bochumer Eisenhutte Heintzmann & Company, Bochum, DT;
Abstract
A base has one side facing towards and another side facing away from the face of the excavation. A shield has a first end portion and a second end portion, the latter being adjacent the other side and the shield extending upwardly and towards the one side. A roof-support cap is mounted on the first end portion. A mounting arrangement includes a shaft and mounts the second end portion of the shield on the base for pivoting about a pivot axis. A displacing arrangement serves to selectively displace the pivot axis in direction towards and away from the one side of the base, so as to maintain the cap in engagement with the roof despite different heights of the latter.