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:
Apr. 28, 2020
Filed:
Aug. 26, 2016
Applicant:
Liebherr-components Biberach Gmbh, Biberach an der Riß, DE;
Inventors:
Assignee:
Liebherr-Components Biberach GmbH, Biberach an der Riss, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C 23/94 (2006.01); B66C 23/84 (2006.01); B66C 23/88 (2006.01); B66C 23/16 (2006.01);
U.S. Cl.
CPC ...
B66C 23/94 (2013.01); B66C 23/16 (2013.01); B66C 23/84 (2013.01); B66C 23/88 (2013.01);
Abstract
The present invention relates to a crane, in particular to a revolving tower crane, having a boom rotatable about an upright slewing gear axis by a slewing gear drive and having an out-of-operation brake which allows and brakes rotary movements of the boom in the out-of-operation state. In accordance with the invention, the out-of-operation brake is configured as working electrodynamically and comprises an electric motor of the slewing gear drive which can be operated as an electric-motor brake.