Furrow opening assembly

Details Furrow opening assembly Furrow opening assembly

1985-08-22

1988-06-14

Johnson, Richard J.

Planting

Drilling

Lister units

111 88, A01C 500

Patent

active

047504412

ABSTRACT:
A towable, furrow opening assembly has an intermediate opener and delivery tubes for deposit of materials such as seed into the opened furrow, together with a trailing press wheel and an aligned, leading wheel such that furrow depth is controlled by the wheels whose corresponding, articulated frames are looped over the opener. Buckling of the frames at the will of the operator varies the depth of the furrow.

REFERENCES:
patent: 1348862 (1920-08-01), Genung
patent: 2691353 (1954-10-01), Secondo
patent: 2771044 (1956-11-01), Patifer
patent: 2981213 (1961-04-01), O'Neil
patent: 3076511 (1963-02-01), Johnson
patent: 3077290 (1963-02-01), Rehder
patent: 3880100 (1975-04-01), Gillies
patent: 4135457 (1979-01-01), Willis
patent: 4148266 (1979-04-01), Weitz
patent: 4333534 (1982-06-01), Swanson

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