Grain drill planting depth control

Details Grain drill planting depth control Grain drill planting depth control

1988-09-12

1990-01-16

DeMille, Danton D.

Planting

Drilling

Furrow closer

111164, 111136, A01C 506

Patent

active

048935727

ABSTRACT:
In an agriculture grain drill which includes a pair of furrow forming disks rotatably mounted on a support connected with the grain drill in trailing fashion and on which downward pressure is exerted by the grain drill, a furrow closing disk depth control wheel trails the furrow disks and is vertically adjustable relative to the furrow disks by a pressure wheel support arm tongue secured to a furrow disk support bracket.

REFERENCES:
patent: 203207 (1878-04-01), Springer
patent: 211601 (1879-01-01), Springer
patent: 310584 (1885-01-01), Hamilton
patent: 319659 (1885-06-01), Altland
patent: 322841 (1885-07-01), Miskimen
patent: 393390 (1888-11-01), Patric
patent: 2577775 (1951-12-01), Lemmon
patent: 4275671 (1981-06-01), Baker
patent: 4331205 (1982-05-01), Sorenson
patent: 4750441 (1988-06-01), Pfenninger

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