Motor vehicles – Special driving device – Portable track
Patent
1989-01-12
1990-02-13
Marmor, Charles A.
Motor vehicles
Special driving device
Portable track
180 91, 144 3D, 414687, B62D 5508
Patent
active
048998419
ABSTRACT:
The present invention is directed to a leveling assembly for a work vehicle. The leveling assembly comprises upper and lower plates that are pivotally connected to one another about a horizontal axis. Two trunnion mounted hydraulic cylinders are mounted to the plates for changing the relative angular position of the plates to one another. The upper plate is mounted to the upper structure of the work vehicle, whereas the lower plate is mounted to the undercarriage of the work vehicle. A portion of each trunnion mounted cylinder extends downwardly into the undercarriage of the work vehicle.
REFERENCES:
patent: 4324304 (1982-04-01), Hashimoto et al.
patent: 4326571 (1982-04-01), Crawford
patent: 4650017 (1987-03-01), Pelletier et al.
patent: 4679803 (1987-07-01), Biller et al.
patent: 4763742 (1988-08-01), Langford
Eichhorst Ryland H.
Hawbaker Jerry B.
Kleinschrodt Dave
Deere & Company
Marmor Charles A.
McGiehan Donn
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