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| Number | Title | Issue Date |
| 7341115 | Soil aerator assembly In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in th... | 03/11/2008 |
| 7070005 | Soil aerator assembly In certain embodiments a soil aerator may include a hinged frame assembly that cooperates with one or more weight transferring systems adapted to permit an aeration subassembly to lift off the ground when an aeration tine impacts a hard obstacle such as a rock in th... | 07/04/2006 |
| 5810092 | Implement for improving the hygroscopic properties of soil The invention relates to an implement for treating soil and, in particular, to an implement used to improve the hygroscopic properties of the soil by making holes in it using one or more tools mounted on an irregular, variable, quadrilateral jointed struc... | 09/22/1998 |
| 5669451 | Adjustable guide rig structure for an agricultural implement A floating row crop cultivator rig is supported behind a rigid guide tire. A guide wheel standard straddles a bracket which mounts the forward end of a rig parallel bar linkage to a toolbar. A tool support depends from the aft end of the parallel bar link... | 09/23/1997 |
| 5417293 | Single pass continuous feed sprigger In a sprigger a tiller aligned with a plow and weighted to disks. The tiller breaks the ground forming narrow grooves into which fertilizer may be distributed and a plow following behind, preferably at a depth less than that of the tiller, forms a substan... | 05/23/1995 |
| 4351397 | Vibrating ripper A vibrating ripper having quadrilateral linkage. The linkage, equipped with a remote hydraulic control therefor for making running adjustments as afforded by a depth actuator cylinder during ripping and possibly, but not necessarily, as afforded by a pitc... | 09/28/1982 |
| 4223742 | Resilient arrangement in a ring roller allowing rings to adapt to ground irregularities In cultivating or rolling soil by rollers with several hinged interconnected frame sections, each having a set of rolls on a common shaft, rotatably journalled at the ends of downwardly dependent arms the rolls closest to a hinge will not roll the soil at... | 09/23/1980 |
