Earth leveling apparatus

Details Earth leveling apparatus Earth leveling apparatus

1996-04-15

1998-04-14

Melius, Terry Lee

Excavating

Road grader-type

Plow with transverse endless conveyor

37350, 37189, 172452, 172327, E02F 500

Patent

active

057378592

ABSTRACT:
An earth leveling apparatus includes a vehicle having runners for movement in an operative direction, an elongated screw mounted to the vehicle and rotatable on its axis, and extending transversely of the operative direction of movement of the vehicle, and an apparatus for rotating the screw, the screw having a spiral blade with an edge adapted to engage earth to move it along the length of the screw as the vehicle advances in the operative direction so as to level the earth.

REFERENCES:
patent: 2650460 (1953-09-01), Newhouse
patent: 2665655 (1954-01-01), Brown et al.
patent: 3091873 (1963-06-01), West
patent: 3318638 (1967-05-01), Kilbourne
patent: 3962803 (1976-06-01), O'Brien
patent: 4819348 (1989-04-01), DeBolt
patent: 4912862 (1990-04-01), Bishop et al.
patent: 5113610 (1992-05-01), Liebrecht, Jr.
patent: 5214867 (1993-06-01), Weatherly et al.

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