Harvesters – Motorized harvester – Including motorized vehicle causing transit of harvester
Reexamination Certificate
2006-08-08
2006-08-08
Kovács, Árpád Fábián (Department: 3671)
Harvesters
Motorized harvester
Including motorized vehicle causing transit of harvester
Reexamination Certificate
active
07086214
ABSTRACT:
A suspension system for a tractor-drawn mower used for crops for agricultural purposes is made up of parallel links, connected at a first end to a frame and to a mowing unit at a second end. A torsion spring assembly, similar to that used for torsion axles, is used to bear a portion of the weight of the mowing unit when the mowing unit is in a lower, mowing position. All torsional stress is removed from the torsion spring when the mowing unit is in a transport position. During mowing, the weight of the mowing unit is divided up between the torsion spring and the surface of the ground. The ratio of the weight supported by the ground to that supported by the torsion spring is adjustable by an operator.
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Bentzinger Rustin V.
Thompson Kent L.
Kovács Árpád Fábián
Sturm & Fix LLP
Vermeer Manufacturing Co.
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