Earth working – With actuator adapted to lift tool for transport on wheeled... – Central group liftable vertically – side groups movable inwardly
Patent
1994-05-04
1995-09-12
Reese, Randolph A.
Earth working
With actuator adapted to lift tool for transport on wheeled...
Central group liftable vertically, side groups movable inwardly
172459, 172468, 172471, 172485, 172311, 280 4323, 60484, 91525, 91528, A01B 6322
Patent
active
054490421
ABSTRACT:
The invention is directed to a foldable agricultural implement frame having a first pair of controlling/controlled lifting hydraulic cylinders for lifting and lowering the right wing section and the center section together in a level condition, and a second pair of controlling/controlled lifting hydraulic cylinders for lifting and lowering the left wing section and the center section together in a level condition. In the first pair of controlling/controlled hydraulic cylinders one of the hydraulic cylinders lifts the right wing section and the other lifts the center section. In the second pair of controlling/controlled hydraulic cylinders one of the hydraulic cylinders lifts the left wing section and the other lifts the center section. A rephasing valve assembly is used to rephase the controlling/controlled hydraulic cylinder pairs when the implement frame is folded and only the center section needs to be lifted and lowered. In rephasing the controlling and controlled hydraulic cylinders, the rephasing valve assembly couples the controlling hydraulic cylinder of the center section to the controlled hydraulic cylinder of the center section.
REFERENCES:
patent: 2928482 (1960-03-01), Gillette
patent: 4320805 (1982-03-01), Winter
patent: 4324411 (1982-04-01), MacKenzie
patent: 4335894 (1982-06-01), Swanson
patent: 4337959 (1982-07-01), Bettin et al.
patent: 4339139 (1982-07-01), Swanson
patent: 4346763 (1982-08-01), Swanson et al.
patent: 4354688 (1982-10-01), Swanson
patent: 4407109 (1983-10-01), Swanson et al.
patent: 4411070 (1983-10-01), Boyum et al.
patent: 4607708 (1986-08-01), Landphair et al.
patent: 5358055 (1994-10-01), Long et al.
Hydraulic diagram from John Deere manual p.30-10-4, printed in U.S.A.
Hydraulic diagram from John Deere manual p. 30-10-5, printed in U.S.A.
Landphair Donald K.
Riewerts Paul R.
Deere & Company
Novosad Christopher J.
Reese Randolph A.
LandOfFree
Rephasing controlling/controlled hydraulic cylinders in folding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rephasing controlling/controlled hydraulic cylinders in folding , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rephasing controlling/controlled hydraulic cylinders in folding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-401370