Planting – Liquid or gas soil treatment – Hand manipulated
Patent
1984-12-19
1986-12-16
Johnson, Richard J.
Planting
Liquid or gas soil treatment
Hand manipulated
172558, 172572, 172166, A01C 2300
Patent
active
046288406
ABSTRACT:
A combination coulter and fertilizer knife apparatus for applying fertilizer to the soil including a frame having a coulter rotatably attached to the frame along a substantially horizontal axis for the purpose of cutting a slot in the soil. A fertilizer knife is attached to the frame rearwardly of the coulter, the front edge of the fertilizer knife being of substantially the same arcuate shape as an adjacent portion of the edge of a circular coulter and slightly spaced from such coulter. A conduit is attached along the rear edge of the fertilizer knife, terminating in an outlet opening adjacent the lower edge of the fertilizer knife and the top thereof leading to a supply of liquid or gaseous fertilizer. Consequently, the combination coulter and fertilizer knife is useful to cut a trench in the ground, and then to permit liquid or anhydrous ammonia fertilizer to be inserted into such trench without having trash or other objects interfere with such operation.
REFERENCES:
patent: 2489385 (1947-11-01), Paul
patent: 3237577 (1966-03-01), Wilkins
patent: 3319589 (1967-05-01), Moran
patent: 3799079 (1974-03-01), Dietrich
patent: 4466364 (1984-08-01), Hassenfritz
patent: 4538532 (1985-09-01), Coker
Disc-Chisel Coulters-Implement and Tractor, Jul. 15, 1981, p. 35, Yetter Mfg. Co. Colchester, Ill.
"Fight Back", Yetter Manufacturing Co. Colchester, Ill. publication 9/85.
DeMille Danton
Harlan Manufacturing Company
Johnson Richard J.
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