Planting – Drilling – Lister units
Patent
1981-10-19
1983-06-21
Feyrer, James R.
Planting
Drilling
Lister units
111 73, A01C 500
Patent
active
043888780
ABSTRACT:
A seeder foot is shaped to open a furrow and to facilitate immediate initial filling thereof as soon as the foot has passed. A plurality of feed tubes are situated immediately behind the foot, one above the other, with the lowermost one extending rearwardly more than the next succeeding one and the next succeeding tube extending rearwardly further than the tube thereabove. These tubes are vertically spaced apart thus enabling a layer of soil to cover the material discharging from the tubes so that the layers of soil separate the materials one from the other. The lowermost tube may discharge granular or liquid fertilizer, the next tube may discharge seed grain and the uppermost tube may discharge a granular herbicide.
REFERENCES:
patent: 3158958 (1962-06-01), Gould
patent: 3851489 (1974-12-01), Richardson
patent: 4116139 (1978-09-01), Sauer
patent: 4248548 (1981-02-01), Danford
patent: 4257340 (1981-03-01), Mickelsson et al.
patent: 4276836 (1981-07-01), Pust
patent: 4341168 (1982-07-01), Siebert
Ade Stanley G.
DeMille Danton
Feyrer James R.
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