Planting – Drilling – Including trash control accessory
Patent
1992-10-13
1994-12-06
Crowder, Clifford D.
Planting
Drilling
Including trash control accessory
111125, 111153, 1727725, A01B 4904, A01B 1500
Patent
active
053700708
ABSTRACT:
The placement device utilizes a flat, upright shank having a pair of rotatable residue cutting discs secured to opposite faces of the shank just outside of a slender, generally crescent shaped, replaceable insert component at the bottom of the shank which is only slightly wider than the shank itself. Instead of transverse fasteners which would widen the overall width of the assembly, a single draw bolt extends generally longitudinally of the shank and attaches the lower component to the lower end of the shank which is configured in the nature of a notch so as to complementally receive in edge-to-edge abutting relationship a matingly configured corner of the component.
REFERENCES:
patent: 1680031 (1928-08-01), White
patent: 1951003 (1934-03-01), White
patent: 2842078 (1958-07-01), Immesoete
patent: 2904119 (1959-09-01), Hunter
patent: 3295481 (1967-01-01), Dethmers
patent: 4598654 (1986-07-01), Robertson et al.
patent: 4719862 (1988-01-01), Edmisson
patent: 4765263 (1988-08-01), Wilkins
patent: 5159985 (1992-11-01), Rowlett
patent: 5165487 (1992-11-01), Williams et al.
Acra-Plant sales brochure"New for '92 Residue/Fertility Management Systems" (IC3/91).
Embree Gary L.
Williams Robert A.
Acra-Plant, Inc.
Crowder Clifford D.
Neas Michael A.
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