Agricultural planter

Details Agricultural planter Agricultural planter

2011-03-08

2011-03-08

Novosad, Christopher J. (Department: 3641)

Earth working

With ground support vertically adjustable relative to frame

C172S407000, C172S423000, C172S453000

Reexamination Certificate

active

07900711

ABSTRACT:
An agricultural implement pulled by a traction vehicle is convertible between use and transport configurations. The implement includes a carrier frame coupled to the vehicle via the combination of a hitch and a draft tongue having an aft portion pivotally coupled to the carrier frame and including a generally vertical cornered post rotatable about a vertical pivot axis. A lift frame having plural spaced row units includes an integral center frame section with a sleeve closely engaging and vertically slideable along the cornered post. A first displacement arrangement moves the aft portion of the draft tongue between the use position and a first elevated position for avoiding obstructions and to facilitate turning in a field, while second and third displacement arrangements respectively raise the lift frame higher on the vertical post and rotate the post and lift frame about the vertical axis to a longitudinal position for transport.

REFERENCES:
patent: 4721168 (1988-01-01), Kinzenbaw
patent: 5579849 (1996-12-01), Houck
patent: 5921325 (1999-07-01), Meek et al.
patent: 6238170 (2001-05-01), Pingry et al.
patent: 6588351 (2003-07-01), Hall et al.

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