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:
Feb. 24, 2015
Filed:
Mar. 27, 2012
Applicants:
Wilhelm Kraeutler, Koblach, AT;
Christof Gassner, St. Gerold, AT;
Inventors:
Wilhelm Kraeutler, Koblach, AT;
Christof Gassner, St. Gerold, AT;
Assignee:
Liebherr-Werk Nenzing GmbH, Nenzing, AT;
Primary Examiner:
Int. Cl.
CPC ...
B66C 13/06 (2006.01); B66C 23/86 (2006.01);
U.S. Cl.
CPC ...
B66C 23/86 (2013.01);
Abstract
The present disclosure relates to a hydraulic braking apparatus for a crane drive for carrying out crane work, in particular a slewing gear, having at least one hydraulic stopping brake for braking the drive movement of the crane drive in an emergency situation, wherein at least one pressure regulation valve is provided for controlling at least one stopping brake to ensure a time-delayed braking torque build-up.