Fertilizer applicator knife assembly

Details Fertilizer applicator knife assembly Fertilizer applicator knife assembly

1985-02-07

1986-12-16

Johnson, Richard J.

Planting

Liquid or gas soil treatment

Hand manipulated

172699, A01C 2302

Patent

active

046288392

ABSTRACT:
A fertilizer applicator knife assembly including an elongated blade shank having a concave leading edge and a concave trailing edge with a fertilizer tube attached to the trailing edge. An arcuate wear insert of hard metal is attached to the leading edge of the blade shank near the lower end thereof. The wear insert has a pair of convergent side surfaces which converge in a radiused leading edge, and also has a head at its lower end which carries a generally triangularly shaped spur which projects downwardly and rearwardly from said head to hook under the forward lower end of the blade shank.

REFERENCES:
patent: 2148925 (1939-02-01), Bochy
patent: 2684617 (1954-07-01), Johnston
patent: 3919951 (1975-11-01), Williams
patent: 4132181 (1979-01-01), Smith
patent: 4201142 (1980-05-01), Stump
patent: 4355589 (1982-10-01), Wetmore
Adams Tillage Tools-advertizing brochure of Adams Hard-Facing Co., Inc., Guymon, Okla., pp. 1, 16, 1/1979.

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