Method for controlling the orientation of a crane load

Details Method for controlling the orientation of a crane load Method for controlling the orientation of a crane load

2007-07-13

2010-12-14

Brahan, Thomas J. (Department: 3654)

Traversing hoists

Having means to prevent or dampen load oscillations

Antisway

C212S270000

Reexamination Certificate

active

07850025

ABSTRACT:
A method for controlling the orientation of a crane load is described, wherein a manipulator416for manipulating the load is connected by a rotator unit to a hook suspended on ropes410and the rotational angle φLof the load is controlled by a control unit using the moment of inertia JLof the load as most important parameter. The control unit is an adaptive control unit wherein the moment of inertia JLof the load is identified during operation of the crane based on data obtained by measuring the state of the system.

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European Patent Office, International Search Report of EP04003288, Oct. 17, 2008, 2 pages.
ISA European Patent Office Search Report of EP 07007445, Mar. 30, 2009, Germany.

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