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| Number | Title | Issue Date |
| 7810579 | Crop residue and soil conditioning agricultural implement A ground opener that is allowed to caster in one direction is associated with a pair of arms connected by a pivot connection that allows one arm to move relative to the other arm. The movable arm is forced against the stationary arm when the ground opener impacts th... | 10/12/2010 |
| 7240627 | Crop debris clearing device A residue coulter apparatus that cleanly severs and clears crop debris from a planting row, causing minimal disturbance to the soil. The residue coulter apparatus comprises a pair of flat discs each having a plurality of back swept shark type teeth extending about t... | 07/10/2007 |
| 5915481 | Tillage implement with on the go angle and depth controlled discs A tillage implement adapted to be towed by a tractor. The tillage implement having on-the-go angle adjustable disc blades which enables the farmer to vary the amount of crop residue left on the surface of the soil. The implement is comprised of a main fra... | 06/29/1999 |
| 5878821 | Tillage implement with on-the-go angle and depth controlled discs A tillage implement with on-the-go angle and depth controlled discs. The toolbar upon which the discs are mounted is pivotally secured to the wheeled implement frame assembly and may be hydraulically pivoted to raise or lower the discs relative to the fra... | 03/09/1999 |
| 5477931 | V ditching machine This is a machine for forming V-ditches for the irrigation of soil. The machine consists of a central frame with a two wheel carriage and plows of subassemblies. Each plow consists of a right subassembly and a left subassembly universally connected to the... | 12/26/1995 |
| 5462123 | Tillage implement with on-the-go depth control of angle adjustable disc gangs The working depth of obliquely angled disc gangs on the implement can be readily adjusted from the tractor seat with a single hydraulic cylinder through the use of mechanical linkage that couples the hydraulic cylinder with all of the disc gangs for simul... | 10/31/1995 |
| 5082064 | Tillage implement having depth adjustable discs A tillage implement which has both deep tillage subsoil shanks at the rear of the machine and relatively shallow running, residue cutting and topsoil mixing discs at the front of the machine provides for expeditious depth adjustment of the discs through s... | 01/21/1992 |
| 5078216 | Combination tillage apparatus A combination tillage apparatus for towing behind a tractor comprises an extended frame having a trunk member oriented along the direction of travel of the apparatus and at least one pair of parallel and spaced apart branch members oriented perpendicularl... | 01/07/1992 |
| 4300853 | Plasticizer mixer and method Apparatus for use in combination with a road working machine for mixing a liquid plasticizing agent within a layer of scarified road surface materal is disclosed. The apparatus includes an array of discs for lifting and turning the scarified road surface ... | 11/17/1981 |
| 4044842 | Flexible multi-section implement An implement frame construction includes rigid implement frame sections positioned in side-by-side relation and joined by a linkage system which permits the sections to universally flex within desired limits with respect to each other without substantial ... | 08/30/1977 |
