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| Number | Title | Issue Date |
| 7204319 | Jointed rockshaft with angularly adjustable segments A flexible rockshaft includes joint structure facilitating the adjustment of the rotational angle of rockshaft segments relative to each other. A link inserted between a rockshaft segment and the rockshaft flex member rotates on the same or a parallel pivot as adjac... | 04/17/2007 |
| 6997121 | Minimum tillage agricultural implement having furrow opening shank assemblies An agricultural implement for forming a furrow in a soil, is described and which includes a rotatable shank; a resilient, movement limiting member disposed in force transmitting relation relative to the rotatable shank; and a pair of wheels mounted for earth engagin... | 02/14/2006 |
| 5476147 | Guidance system for an agricultural implement A guidance system for an implement drawn by a tractor with the implement being interconnected to the tractor by a guidance hitch which moves the implement laterally with respect to the tractor to maintain the implement in proper alignment with the rows of... | 12/19/1995 |
| 4607716 | Agricultural apparatus with an automatic positioning mechanism and method Automatic steering mechanism for use on apparatus for forming raised beds or ridges and furrows and lowered beds with uniform spacing with the apparatus being of a type comprising a self-propelled vehicle having a steering apparatus for steering the vehic... | 08/26/1986 |
| 4526237 | Multi-furrow plow assembly with adjustable plowshare mounts An agricultural implement wherein a plurality of cultivators such as plowshares are attached to mounts (7) on a frame (1) which can be adjusted for different plow strip widths by a hydraulic cylinder (15) and a parallel strut (10), the frame (1) being piv... | 07/02/1985 |
| 4502544 | Plow assembly with turn limiter An assembly on an agricultural implement, especially a semi-plow, wherein the assembly comprises a plurality of pivotable and mutually interacting parallelograms and a plurality of partially interconnected link members (12, 26, 31, 34, 41) which regulate ... | 03/05/1985 |
| 4475601 | Variable width plow system with shim means adjustment A plow system that includes a plurality of equally spaced plows, each of which is mounted on the inclined beam of the system by a mechanically adjustable mounting structure. The system also has a tail wheel that is associated with the last plow and steeri... | 10/09/1984 |
| 4186806 | Plow system A variable width furrow-spacing plow system embodied in an implement having a laterally adjustable tractor hitch, an angularly adjustable plow-carrying main frame, and hydraulic means for correlating the lateral movement of the hitch and angular position ... | 02/05/1980 |
| 4161986 | Plow and plow mounting bracket therefor A plow mounting bracket for variable width plows including a mounting post having a free end that extends upwardly from a hub portion and is pivotally received by the plow main frame. The plow bracket can be used for plows that are secured at selected wid... | 07/24/1979 |
| 4098346 | Steering for plow with adjustable plow bottoms A plow having a main frame beam disposed in a diagonal direction with respect to the direction of travel and having a plurality of plow bottoms equally spaced along the diagonal beam, each bottom being vertically pivotally supported on the beam. A furrow ... | 07/04/1978 |
| 4077651 | Hydraulic steering for plow A tractor-trailed plow having a steerable rear wheel is provided with a hydraulically powered steering system including master and slave cylinders arranged to steer the rear wheel in response to changes in the angular position of the plow with respect to ... | 03/07/1978 |
| 4049063 | Multi-unit adjustable plow system A plow system includes a number of individual plow units mounted on a beam which is inclined relative to the direction of travel of a traction vehicle. The units are mounted for continuous rotation about vertical axes so that they may be opened or closed ... | 09/20/1977 |
| 4036305 | Gang plow A plurality of plow units are mounted to a main frame of a plow system for rotation about their vertical axes. The plow units are spaced at equal lateral increments and at uniformly increased distances from a pivot connection between the main frame and a ... | 07/19/1977 |
