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| Number | Title | Issue Date |
| 7059257 | Minimum till seeding knife The present invention relates to a knife for and a method of zero till or minimum till seeding and fertilizing. The knife is particularly adapted for dry land conditions producing minimum solid disturbance and very shallow operation. The knife has a high penetration... | 06/13/2006 |
| 5881821 | Fin sweep assembly and method of manufacture A tillage sweep assembly includes a base sweep with a central fore-and-aft slot. A support strap or stem includes a corresponding fore-and-aft extending protrusion which mates with the slot. A filet weld connects the top of the base sweep to the support s... | 03/16/1999 |
| 5495814 | Sub-zone tiller with offset fertilizer placement A seed furrow cutting knife adapted for cutting a seed furrow, fluffing the furrow sidewalls to avoid soil compaction, and for offset placement of fertilizer in the furrow is provided. The furrow cutting knife has associated side wings for fluffing sidewa... | 03/05/1996 |
| 5259461 | Cultivator sweep A cultivator sweep having a substantially constant cross-sectional thickness and configured with a generally triangular head portion including a pair of side edges diverging symmetrically rearward from a nose region. Each of the side edges is provided wit... | 11/09/1993 |
| 5172770 | Agricultural shares with dimples An agricultural share having a working portion with a front face, a rear face and two sides converging to a forward point. A plurality of depressions are formed on the rear face of the working portion in the vicinity of the two sides for the purpose of ac... | 12/22/1992 |
| 4850435 | Cultivator sweep with pair of rearwardly extending downturned rigid flaps The convex upper surface of the generally triangular sweep has oppositely inclined, lateral faces that diverge from the forwardmost point of the sweep and serve to loosen and lift the soil while the outer cutting edges sever subsurface roots of weeds and ... | 07/25/1989 |
| 4363364 | Plow chisel with pointed shank having pointed chisel cap secured thereto by weld A plow chisel having an integrated chisel point and including an elongated, arcuate shank portion formed as a curved, flat metal plate having a top surface, bottom surface and two opposed side edges. At one end, the shank portion is pointed due to converg... | 12/14/1982 |
| 4185699 | Soil contact tool This invention relates to an improved soil contact tool comprised of a narrow uniform width ground engaging section and a triangular moldboard section extending therefrom. The moldboard section has a center to direct soil away from the mold board with sid... | 01/29/1980 |
