Agricultural implement with orbiting knives

Details Agricultural implement with orbiting knives Agricultural implement with orbiting knives

1986-08-28

1988-04-12

Johnson, Richard J.

Earth working

With drive means for tool or cleaner

Subsurface shears or nippers

172 42, 172 495, A01B 3306

Patent

active

047368020

ABSTRACT:
An agricultural implement with one or more pairs of knives which are eccentrically mounted on rotary knife holders and extend from the underside of a housing which can be pulled or pushed by hand or by an engine. The knives of each pair orbit in the same direction and cooperate as the blades of shears to loosen and comminute the ground. The holders are driven by a motor and the cutting edges of the knives constitute helices extending counter to the direction of orbital movement of the respective knives.

REFERENCES:
patent: 2088141 (1937-07-01), Royston
patent: 2619891 (1952-12-01), Sloper
patent: 2625867 (1953-01-01), Hands
patent: 2888084 (1959-05-01), Trecker
patent: 3106251 (1963-10-01), Lucas
patent: 3931859 (1976-01-01), van der Lely
patent: 4003436 (1977-01-01), Foster

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