B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
B66C 23/90 (2006.01) B66C 13/16 (2006.01) B66C 13/18 (2006.01)
Patent
CA 2672129
A method is disclosed for controlling a crane which comprises a boom that may be raised or lowered by angular adjustment of the boom about a base portion of the crane. The method prevents operation of the crane in an undesired condition by continuously monitoring operation of the crane, including monitoring at least the position of the boom with respect to the base of the crane. If the crane approaches a limit of its operating range or any operational parameter, its operation will be controlled so as to selectively prohibit or permit a boom raising operation of the crane, depending on the cause of the condition, rather than uniformly prohibit such an operation.
Manitowoc Crane Companies Inc.
Mccarthy Tetrault Llp
LandOfFree
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