Cultivator and liquid fertilizer blade

Details Cultivator and liquid fertilizer blade Cultivator and liquid fertilizer blade

1976-12-09

1979-02-27

Burr, Edgar S.

Planting

Liquid or gas soil treatment

Hand manipulated

172699, 172724, 172730, A01C 2302

Patent

active

041413016

ABSTRACT:
An improved fertilizer knife includes a main knife-shaped blade which is inclined in a forward direction and which has a fertilizer discharge tube along its trailing edge for discharge of liquid fertilizer into the soil. A pair of wings attached to the main blade extend transversely. The wings lie in a plane generally parallel to the soil surface. The wings are swept back and include optional tip members.

REFERENCES:
patent: 709147 (1902-09-01), Fay
patent: 1381028 (1921-06-01), Stevenson
patent: 2439743 (1948-04-01), McEwen
patent: 2768591 (1956-10-01), James
patent: 2842077 (1958-07-01), Morrison
patent: 2904119 (1959-09-01), Hunter
patent: 2924187 (1960-02-01), Zimmerman
patent: 3605657 (1971-09-01), Brannan
patent: 3618538 (1971-11-01), Brannan
patent: 3745944 (1973-07-01), Yetter et al.
patent: 3919951 (1975-11-01), Williams et al.
Anon., (1972) AMCO Deep Tillage Plow, (Advertizing Leaflet) by AMCO, No. 1, AMCO Drive/Yazoo City, Miss. 39194.

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