Non-parallel four-bar linkage for suspending an agricultural...

Harvesters – Motorized harvester – Including motorized vehicle causing transit of harvester

Reexamination Certificate

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Details

C172S319000

Reexamination Certificate

active

07958707

ABSTRACT:
A suspension system for agricultural implements having at least one floating head using a four-bar linkage and permitting the floating head to accommodate variations in ground surface elevation in a lateral or transverse direction. By permitting the floating head to float, a more consistent cutting height is realized when ground surface elevation varies in a transverse direction. A main frame is provided to which the ground engaging wheels are attached. A sub-frame is connected to the main frame via the four-bar linkage and the linkage arms of the four-bar linkage are not parallel to one another as viewed from above. The linkage arms of the four-bar linkage are pivotally attached to the main frame and sub-frame by spherical bearings.

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1 sheet showing a New Holland—Section 8 Hydraulic Cylinder.
7 sheets, entitled “Late Model Mustang Suspension Basics” showing automotive suspensions; document downloaded at http://www.miracerros.com/mustang/t suspension.htm., Date Feb. 20, 2008

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