Seed drill

Details Seed drill Seed drill

1985-08-15

1987-09-22

Johnson, Richard J.

Planting

Drilling

Lister units

172709, 1726245, 172711, A01C 720, A01B 4906

Patent

active

046947590

ABSTRACT:
A seed drill for applying seed and/or fertilizer has a frame, reservoir, and sowing shares. The sowing shares are attached to the frame in such a way that they can move in an upright plane by means of superimposed and at least approximately parallel struts on parallelogram mounts. To essentially improve the share mounts, allowing them to be employed on direct-sowing seed drills and especially on soils thickly set with entrenched stones or other obstacles and preventing damage to the shares or share mounts when the shares are laterally overstressed, at least one strut on a parallelogram mount is elastic.

REFERENCES:
patent: 469109 (1892-02-01), Williams
patent: 1290446 (1919-01-01), White
patent: 2713836 (1955-07-01), Ajero
patent: 3737156 (1973-06-01), Ward
patent: 4208974 (1980-06-01), Dryer
patent: 4452317 (1984-06-01), Moos
patent: 4452319 (1984-06-01), Miguet
patent: 4580507 (1986-04-01), Dreyer

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