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| Number | Title | Issue Date |
| 7520338 | Furrow closer A furrow closer apparatus for attachment to a shank of a ground working implement, the shank extending rearward and downward from an implement frame member, comprises a bracket adapted for attachment to the shank. The bracket extends down from an upper forward porti... | 04/21/2009 |
| 6880644 | Deep tillage ripper with independent, spring-mounted closing wheels A tillage tool includes a relatively narrow shank that slices through the soil while a ripper point at its lower end fractures and lifts the subsoil. Minimum surface disturbance adjacent the opposite sides of the shank is assured through the provision of a pair of i... | 04/19/2005 |
| 5595249 | Ground leveler attachment for a ground working device A ground leveler attachment for a ground working device comprises a bracket fastened to a shank supporting a ground breaking tool, a carrier arm connected to the bracket, a pair of leg supports in pivotal contact with the carrier arm, a pair of springs bi... | 01/21/1997 |
| 4577699 | Cushion mounted disc with interconnecting spool assembly In a disc harrow implement, each of a plurality of disc blades is provided with a conical hub having a center aperture through which an arbor bolt is inserted along the length of the implement. First and second sections of a spool, or hub, positioned on t... | 03/25/1986 |
| 4404918 | Closing wheel mounting for a planter The invention relates to a seed planter having furrow forming means in association with a pair of furrow closing wheels each of which is independently mounted relative to the suspension of the other so that each spring biased suspension arm is pivotable t... | 09/20/1983 |
| 4294181 | Subsoil agricultural implement with rotatable disc A subsoil implement is disclosed that utilizes a horizontally rotatable disc that is moved beneath the surface of the ground for the purpose of cultivating or for producing a sub-surface bed for placing flowable material such as seed or soil treating gas ... | 10/13/1981 |
| 4275791 | Yieldable disc blade assembly A yieldable disc blade assembly for individual disc blades which prevents structural damage of the disc blades when such blades contact a rock or other obstruction in the field. Once the disc blade is tripped by the force of the blade encountering an obst... | 06/30/1981 |
| 4236583 | Toggle link trip and reset mechanism for earthworking tool A moldboard plow bottom unit having a frame mount on a beam. A standard attached to a moldboard plow bottom is pivotally connected to the frame to provide movement of the moldboard plow bottom from a normal earthworking position to an elevated trip positi... | 12/02/1980 |
| 4046200 | Lawn edger attachment A lawn edger attachment for moving vehicles consisting of a rolling coulter blade carried for rotation on a horizontal axis at the rearward end of a trailing arm pivoted at its forward end to the vehicle on a generally vertical axis. Mechanism is provided... | 09/06/1977 |
