Earth working – Diverse tools – Second implement follows path of first
Patent
1978-10-05
1980-08-19
Johnson, Richard J.
Earth working
Diverse tools
Second implement follows path of first
172413, 172460, 172421, 172326, 172611, E02F 364
Patent
active
042179629
ABSTRACT:
A soil ripping tooth assembly is pivotally mounted for vertical movement within a horizontally disposed downwardly and forwardly open box frame having a drawbar and drawn by a prime mover having a hydraulic fluid supply system. A scraping blade is connected in depending relation with the rearward wall of the box frame for collecting soil within the confines of the box frame. A pair of wheels, journalled by stub axles, connected with a weight support frame in turn pivotally connected to the rearward side of the box frame, supports the box frame and ripper tooth assembly in combination with the drawbar. A plurality of hydraulic cylinders, mounted on the box frame and respectively connected with the drawbar, ripper tooth assembly and weight supporting frame, selectively tilt the ripper tooth assembly and respective sides and ends of the box frame toward and away from the surface of the earth in a soil collecting and distributing action.
REFERENCES:
patent: 1954282 (1934-04-01), Cahall
patent: 2051283 (1936-08-01), Austin
patent: 2078500 (1937-04-01), Maloon
patent: 2103588 (1937-12-01), Le Bleu
patent: 3058243 (1962-10-01), McGee
patent: 3430366 (1969-03-01), King
patent: 3724557 (1973-04-01), Boschung
patent: 4055222 (1977-10-01), Runte
Johnson Richard J.
Rhea Robert K.
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