Steering and elevating wheel system for agricultural implement

Details Steering and elevating wheel system for agricultural implement Steering and elevating wheel system for agricultural implement

2008-05-01

2010-12-14

Pezzuto, Robert E (Department: 3671)

Earth working

With wheel steering or actuator for horizontally angling...

C172S318000, C172S321000, C172S383000

Reexamination Certificate

active

07849932

ABSTRACT:
An apparatus for facilitating steering, height adjustment and transport of a farm implement towed by a vehicle. The implement includes a main frame and a hitch that extends from the frame for linking to the vehicle. The apparatus comprises a wheel support member supported below the frame, at least a first ground engaging wheel supported by the wheel support member for rotation about a first wheel axis and to engage a ground surface below the frame thereby supporting the frame above the ground, a first hydraulic lift cylinder linked between the frame and the wheel support member and controllable to adjust the height of the frame above the ground, and a hydraulic steering cylinder mounted to the wheel support member and controllable to steer the first wheel independent of the state of the first lift cylinder.

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Orthman Agricultural, Tracker IV Implement Guidance System Web Page, http://www.orthman.com/html603/tracker-IV.html, accessed Nov. 26, 2008.
Bill Strautman, “Rear Steer Keeps Seed Hawk On Steep Hills”, Western Producer Newspaper, Apr. 1, 2004, p. 103, Saskatoon, CA.
Options-Rear Wheel Steering, Seed Hawk Product Literature.

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