Air injection system for a cultivator

Details Air injection system for a cultivator Air injection system for a cultivator

1986-04-24

1988-10-04

Feyrer, James R.

Planting

Liquid or gas soil treatment

Hand manipulated

A01C 2302

Patent

active

047748982

ABSTRACT:
A cultivator has a blade secured to a frame. The blade is downwardly projected from the frame and has an edge at the forward side thereof. An air injector is provided at a lower portion of the blade. A swing arm is provided to move in accordance with the depth of the injector in the soil. A switch produces a signal when the swing arm moves to a predetermined position at which the injector is positioned at a sufficient depth for aerating the soil. In response to the signal, a valve is opened to supply the compressed air to the injector.

REFERENCES:
patent: 2168099 (1939-08-01), Hawkins et al.
patent: 3330070 (1967-07-01), Ferm et al.
patent: 3331340 (1967-07-01), Tschudy
patent: 3492954 (1970-02-01), Rothfelder
patent: 3621800 (1971-11-01), Rellinger
patent: 3648631 (1972-03-01), Fiedler et al.
patent: 3736890 (1973-06-01), Barnes
patent: 4273056 (1981-06-01), Lofgren et al.
patent: 4355688 (1982-10-01), Hamm et al.
patent: 4566543 (1986-01-01), Kotani
patent: 4660480 (1987-04-01), Zinck

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