Harvesters – Motorized harvester – With condition-responsive operation
Reexamination Certificate
2007-03-20
2007-03-20
Kovács, Árpád Fábián (Department: 3671)
Harvesters
Motorized harvester
With condition-responsive operation
Reexamination Certificate
active
11125421
ABSTRACT:
In an agricultural combine, a header terrain following system using a floating header having a frame, a support member supporting the frame from the ground, and a suspension variably supporting the frame from a feederhouse moveably attaching at the front of the combine. A lift cylinder supports and articulates the feederhouse from the combine, and a lift valve connects the lift cylinder to a main hydraulic circuit. A position sensor adapted to sense vertical position of the frame relative to the feederhouse attaches to the floating header. A controller communicates with the lift valve and the position sensor. The controller maintains vertical position of the frame relative to the feederhouse at a nominal value by continuously reading the position sensor and commanding the lift valve to add or subtract hydraulic fluid in the lift cylinder until position reads at the nominal value.
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Deere & Company
Kovács Árpád Fábián
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