Planting – Liquid or gas soil treatment – Drilling machines
Patent
1988-03-21
1989-05-02
Johnson, Richard J.
Planting
Liquid or gas soil treatment
Drilling machines
172722, 172730, 172745, A01B 3526, A01C 2302
Patent
active
048257826
ABSTRACT:
A sweep-spike combination tillage tool (10) according to the preferred teachings of the present invention is disclosed including generally flat, horizontal sweep blades (18) located behind a spike (16) and above the point (28) of the spike (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 the spike (16). 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 generally tangentially to the side edges (34) of the spike (16) to provide cantilever mounting of the sweep blades (18) and to provide support for soil passing over the spike (16) and the sweep blades (18) at their interconnection. 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 behind point (28) of spike (16) and in front of sweep blades (18) for applying fertilizer. Thus, tool (10) according to the teachings of the present invention tills, fertilizes, and incorporates granular fertilizer and/or herbicides into the soil in a one-pass tillage operation.
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