Earth working – With actuator adapted to lift tool for transport on wheeled... – Servo-motor forces tool down
Patent
1987-07-01
1989-04-04
Johnson, Richard J.
Earth working
With actuator adapted to lift tool for transport on wheeled...
Servo-motor forces tool down
172483, A01B 1308
Patent
active
048177318
ABSTRACT:
An improved parallelogram type ripper mechanism is provided. The mechanism has identical hydraulic pitch and lift cylinders lying in the same vertical plane. Also copolanar with the hydraulic cylinders are fixed length links. Identical left and right hand mounting brackets are attached to the rear of the prime mover.
REFERENCES:
patent: 3433310 (1969-03-01), Harper
patent: 3503456 (1970-03-01), Larson
patent: 3527308 (1970-09-01), Bernota et al.
patent: 3539018 (1970-11-01), Sprenkel
patent: 3657831 (1972-04-01), Kant
patent: 3871462 (1975-03-01), Krolak
patent: 3887015 (1975-06-01), Kelley
patent: 4003603 (1977-01-01), Stemler et al.
patent: 4013129 (1977-03-01), Wilkinson
patent: 4031964 (1977-06-01), Takahashi et al.
patent: 4174757 (1979-11-01), Stedman
patent: 4204578 (1980-05-01), Stedman
patent: 4321970 (1982-03-01), Thigpen
patent: 4351397 (1982-09-01), Winker
patent: 4453600 (1984-06-01), Thigpen
Johnson Richard J.
Komatsu Dresser Company
LandOfFree
Ripper mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ripper mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ripper mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-173225