Title: Hydraulic steering for plow

Abstract: A tractor-trailed plow having a steerable rear wheel is provided with a hydraulically powered steering system including master and slave cylinders arranged to steer the rear wheel in response to changes in the angular position of the plow with respect to the tractor. A rephasing valve system is provided that is responsive to turning of the tractor for proper phasing of the master and slave cylinders.

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Inventors: Steinbach, James Gerald (Davenport, IA, US)
Rehn, Gary Allen (Andover, IL, US)
Jackson, William Wayne (Bettendorf, IA, US)

Application Number: 729611
Filing Date: 1976-10-01
Publication_date: 1978-03-07
Assignee: Deere & Company (Moline, IL)
Primary Class(es): 280/426 60/546, 172/282, 172/283, 172/285, 172/647
Other Classes:
US Patent Ref:

3910353	Oct, 1975	Ralston	280/426.
4006664	Feb, 1977	Brown	60/546.

Other Refs:
Primary Examiner: Peters, Jr., Joseph F.
Assistant Examiner: Pekar, John A.
Attorney: