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| Number | Title | Issue Date |
| 7278502 | Implement and power take off attachment system A quick attaching coupler is mounted to a tractor three point hitch, with a first actuator linked to latches on both sides of the hitch. The first actuator may be moved by a seated operator between a first position wherein both latches are unlatched and a second pos... | 10/09/2007 |
| 6898502 | System for changing function of work machine and base station A function changing system of construction machinery includes a hydraulic excavator and a base station. The hydraulic excavator is deployed at a construction site and is provided with a rewritable memory storing control programs and/or data required for control of t... | 05/24/2005 |
| 5557510 | Control system for a large round baler A control system for an agricultural implement such as a large round baler includes a microprocessor-based implement module mounted to the baler and a microprocessor-based input device mounted within the cab of the tractor behind which the baler is towed.... | 09/17/1996 |
| 5346018 | Vehicle hydraulic three-point hitch and power take-off shaft An inventive three-point hitch assembly that attaches to the front end of a truck or pickup and supports at three points a plurality of implements or tools. It has a belt-driven power take-off for rotary tools that is controlled by an electric clutch and ... | 09/13/1994 |
| 4838357 | Soil tilling machine A selector or shift lever manipulates gears in a ground wheel transmission to select a running mode when moved in the transverse direction, and manipulates gears in a plow transmission to select the rotating direction of a rotary plow when moved in the ve... | 06/13/1989 |
| 4831891 | Power transmission device for a tractor A power transmission device for a tractor in which a main shifting device and a secondary shifting device are disposed in front and back of one another within a transmission case which is mounted on a rear part of the tractor body is disclosed. Drive powe... | 05/23/1989 |
| 4753298 | Turf aerating apparatus A turf aerator includes a wheel-supported frame and drive means for propelling the frame across the ground at a predetermined rate. A pair of substantially vertical tine arms each having a plurality of downwardly directed turf coring tines attached to the... | 06/28/1988 |
| 4716665 | Folding trencher boom A foldable trencher boom assembly including a first boom portion pivotally connected to a second boom portion by a hinge. One leg of the hinge is connected to the first boom portion while the other leg of the hinge is connected to the second boom portion.... | 01/05/1988 |
| 4660649 | Rotary tiller tool apparatus with vertical lift force variable in direct proportion to pressure to rotate tiller tool A retractable in-row tiller device is adapted for mounting on a movable vehicle and for tilling the ground around and between objects in a row. An outrigger arm with a rotary tiller mounted on its distal end is retracted inwardly and extended outwardly by... | 04/28/1987 |
| 4538400 | Rotary mower having ground supported frames A mower embodies a translatable main frame connectable to a towing vehicle having a power take-off unit connectable to a transmission carried by the main frame. At least one translatable wing frame is hingedly connected to an adjacent side of the main fra... | 09/03/1985 |
| 4137853 | Folding grain drill drive including seed dispensing clutch actuated by tensioning pully on ground drive A pull type folding grain drill driven by the gauge wheels including pivoting legs carrying the gauge wheels which drive a clutch shaft through a first chain and sprocket drive, the clutch shaft axis being offset from the pivoting leg axis. A second chain... | 02/06/1979 |
| 3941193 | Ground tilling apparatus Disclosed is a tilling apparatus characterized by a regulating drive connection between the towing tractor drive axle and the tiller shaft, the tiller tines having a modified arcuate configuration which provide a pocketed, rather than a furrowed or channe... | 03/02/1976 |
