Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 14, 2023
0Patent Application Number
169092850
Date Filed
June 23, 2020
0Patent Citations
Patent Primary Examiner
CPC Code
The present invention relates to a crane comprising a main boom and a rearwardly directed derrick boom for bracing the main boom, wherein a suspended ballast is directly or indirectly attached to the derrick head via connecting means, wherein at least one luffable, rearwardly aligned ballast adjusting boom is provided, which acts on the connecting means and influences the suspended ballast radius by its luffing angle.
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