Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 26, 2006
Patent Application Number
11020589
Date Filed
December 22, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A boom assembly includes a frame, a boom, a boom stabilization cylinder, and a feedback cylinder. The boom is rotatably mounted to the frame to rotate about a first axis. The boom stabilization cylinder is coupled to the boom to resist rotational deflection of the boom about the first axis. The feedback cylinder is coupled to a counterbalancing weight. The feedback cylinder is hydraulically coupled to the boom stabilization cylinder. Movement of the boom stabilization cylinder to resist deflection of the boom causes corresponding movement of the feedback cylinder to lift the counterbalancing weight.
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