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US 5,326,214 AGranted
Method and apparatus for handling a cutter or the like
AssigneeCMI Corporation
InventorGeorge W. Swisher, Jr.
Life of this patent
Estimating the term…
Abstract
A handling and transporting apparatus having a lifting and lowering frame supported by hydraulically actuated parallelograms at each end from transporting frames.
Claims7
An apparatus for handling an object, comprising:
- a lifting and lowering frame having first and second ends adapted to support the object;
- first and second transport frames;
- a first hydraulically actuated parallelogram connecting the first transport frame to the first end of the lifting and lowering frame;
- said first hydraulically actuated parallelogram comprising a hydraulic cylinder and at least one pair of upper and lower parallel linkages, each of said linkages and said cylinder being pivotally connected to the first transport frame and the first end of the lifting and lowering frame;
- a second hydraulically actuated parallelogram connecting the second transport frame to the second end of the lifting and lowering frame;
- said second hydraulically actuated parallelogram comprising a hydraulic cylinder and at least one pair of upper and lower parallel linkages, each of said linkages and said cylinder being pivotally connected to the second transport frame and the second end of the lifting and lowering frame;
- and
- means for operating the hydraulically actuated parallelograms in unison, whereby the lifting and lowering frame may be raised and lowered in a horizontal plane with an angular orientation of the first and second transport frames with respect to the ground surface remaining unchanged.
5 more elements
Dependencies are inferred from the claim text.