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. 14, 2010
Filed:
Oct. 16, 2007
Klaus Schneider, Hergatz, DE;
Oliver Sawodny, Stuttgart, DE;
Joerg Neupert, Korntal-Muenchingen, DE;
Klaus Schneider, Hergatz, DE;
Oliver Sawodny, Stuttgart, DE;
Joerg Neupert, Korntal-Muenchingen, DE;
Liebherr-Werk Nenzing GmbH, Nenzing, AU;
Abstract
A control system for a boom crane, having a tower and a boom pivotally attached to the tower, a first actuator for creating a luffing movement of the boom, a second actuator for rotating the tower, first means for determining the position rand/or velocity {dot over (r)}of the boom head by measurement, second means for determining the rotational angle φand/or the rotational velocity {dot over (φ)}of the tower by measurement, the control system controlling the first actuator and the second actuator. In the control system of the present invention the acceleration of the load in the radial direction due to a rotation of the tower is compensated by a luffing movement of the boom in dependence on the rotational velocity {dot over (φ)}of the tower determined by the second means. The present invention further comprises a boom crane having such a system.