Planting – Liquid or gas soil treatment – Drilling machines
Patent
1989-03-06
1991-03-26
DeMille, Danton D.
Planting
Liquid or gas soil treatment
Drilling machines
172722, 172730, 172745, 111152, 111123, A01B 3526, A01C 2302
Patent
active
050019953
ABSTRACT:
Sweep tillage tools (10, 10') according to the preferred teachings of the present invention are disclosed including generally flat, horizontal sweep blades (18) generally located behind the implement shank (12) and above the point (28) of the spike (16, 16'). Specifically, the front corners of the sweep blades (18) between their front cutting edges (36) and inside edges (40) are integrally connected to the side edges (34) of a central portion (32, 32'). Gussets (20) are provided having a first side (48) integrally connected generally perpendicular to the inside edges (40) of the sweep blades (18) and having a second side (50) integrally connected to the side edges (34) of the central portion (32, 32') to provide catilever mounting of the sweep blades (18) and to provide support for soil passing over the spike (16, 16') and the sweep blades (18) at their intersection. Furrow fillers (22) are provided having top edges (52) integrally connected to the bottom faces (46) of the sweep blades (18) for moving the soil behind the implement shank (12) and the gussets (20). Applicators (64) may be provided generally behind point (28) of spike (16, 16') and generally in front of sweep blades (18) for applying fertilizer. Thus, tools (10, 10') according to the teachings of the present invention till, fertilize, and incorporate granular fertilizer and/or herbicides into the soil in a one-pass tillage operation.
REFERENCES:
patent: 373829 (1887-11-01), Hatcher
patent: 838411 (1906-12-01), Horne
patent: 1548418 (1925-08-01), Griffice
patent: 1558625 (1925-10-01), Ptty
patent: 1613092 (1927-01-01), Gallup
patent: 2024402 (1935-12-01), Thompson
patent: 2577363 (1951-12-01), Poynor
patent: 3125170 (1964-03-01), Rosenvald
patent: 3923104 (1975-12-01), Tibbs
patent: 4175341 (1979-11-01), Mortimore
patent: 4817727 (1989-04-01), Mielke et al.
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