Self leveling towed implement

Details Self leveling towed implement Self leveling towed implement

2006-06-20

2006-06-20

Pezzuto, Robert E. (Department: 3671)

Earth working

With actuator on trailing ground supported frame for moving...

Vertically

C172S004500, C172S311000, C172S322000

Reexamination Certificate

active

07063167

ABSTRACT:
An implement has a tongue used to tow the implement that can be raised or lowered with respect to the rest of the implement. The tongue is raised or lowered by a hydraulic cylinder. The raising and lowering ports of the cylinder are connected to two hydraulic accumulators to permit the tongue to flex up or down while the implement is towed through the field. These accumulators are disconnected from the cylinder when the wings of the implement are lifted and the implement is towed over the road to prevent the implement from oscillating backwards and forward about an axis defined by its wheels.

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