Excavating – Ditcher – Wheel excavator
Patent
1979-03-26
1980-12-23
Crowder, Clifford D.
Excavating
Ditcher
Wheel excavator
172398, E02F 502
Patent
active
042402166
ABSTRACT:
Apparatus is disclosed wherein a plow is mounted on a frame so as to form a ditch in the ground as the frame is towed behind a tractor. The frame is of such construction and so attached to a three point hitch that its rear end cannot be lifted without first fixing the angular relation of its pivotally connected parts. A means is provided for fixing this relation independently of manipulation of the three point hitch.
REFERENCES:
patent: 3035360 (1962-05-01), Johnson
patent: 3545033 (1970-12-01), Couser
patent: 4002208 (1977-01-01), Rougeau
Crowder Clifford D.
Eickenroht Marvin B.
Lehman-H Feeder & Plow, Inc.
Thompson Jennings B.
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