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| Number | Title | Issue Date |
| 7356397 | Crowd control system for a loader A work vehicle comprising a motor, a drive unit for driving a ground engaging portion, a torque converter for variably transferring power from the motor to the ground engaging portion, a lubrication circuit for providing lubrication fluid to the torque converter, an... | 04/08/2008 |
| 7283903 | Enabling system for an implement controller A system for reliably enabling an implement controller for a work vehicle having a swivel seat with at least two angular positions. The system includes an implement controller for controlling a work implement, seat position detector for determining the positions of ... | 10/16/2007 |
| 7260476 | Shock resistant device A shock resistant device. A printed circuit board comprising electronics and a frequency reference is rigidly mounted to a central support member. The electronics can be mounted to both surfaces of the printed circuit board. The central support member is mounted to ... | 08/21/2007 |
| 7174966 | Process of setting the length of an upper steering arm A process of setting the length of an upper steering arm of an attaching device of a tractor. The attaching device includes the upper steering arm with a power drive provided for length setting purposes; a length sensor to determine the actual length of the upper st... | 02/13/2007 |
| 7104340 | Towed implement draft force sensor A draft force sensor is provided for a coupling member coupled between a towing vehicle and a towed earth engaging implement, such as a scraper. The draft force sensor includes first and second bores extending through the coupling member. Each bore has a horizontal ... | 09/12/2006 |
| 6996464 | Automated speed limiting based on machine located The present invention provides a method and apparatus for automatically limiting the ground speed of a work machine. The work machine is adapted to move about the ground of a work site. An electronic site map having at least one speed restriction is maintained at a ... | 02/07/2006 |
| 6971453 | Control system for a three point implement hitch assembly A control system controls a three point implement hitch assembly of a tractor. The three point implement hitch assembly includes an upper link and two lower links. The upper link includes an adjustable length double acting hydraulic unit. The position of each lower ... | 12/06/2005 |
| 6935434 | Hitch control system with spring centered control lever A hitch control system controls a vehicle hitch to which implements can be attached. The hitch control system includes a spring-centered primary command lever which is manually moveable from a centered position to deflected positions, and which automatically returns... | 08/30/2005 |
| 6584390 | System for measuring the amount of crop to be harvested A system for measuring the amount of crop material located on a field to be harvested uses a scanning laser device. The scanning laser device has a transmitter for emitting electromagnetic radiation, a receiver for receiving reflected radiation from the c... | 06/24/2003 |
| 6553302 | Work vehicle with operator selected load control and fuel economy control A work vehicle such as an agricultural tractor includes means for the operator to select between manual or automatic engine speed control and to select among multiple automatic modes each having a different amount by which the engine speed is reduced when... | 04/22/2003 |
| 6332103 | Apparatus and method for a pitch state estimator for a personal vehicle An apparatus and method for a pitch state estimator is provided. The pitch state estimator generates a pitch state signal for establishing the orientation used in the control of a ground-traversing vehicle. The vehicle has a support for supporting a load ... | 12/18/2001 |
| 6282463 | Method of selecting pneumatic devices A method of selecting pneumatic devices that satisfy specified load, speed and strength conditions to construct a pneumatic system. Data concerning pneumatic actuators, solenoid-controlled selector valves, drive controllers, pipes, pipe joints and exhaust... | 08/28/2001 |
| 6256566 | Lift mechanism controller and control method for industrial vehicles A lift vehicle and a method for initializing a controller for controlling a lifting mechanism of lift vehicle. The controller controls the maximum forward tilt angle of a mast by controlling a solenoid of a hydraulic circuit. The controller employs a stor... | 07/03/2001 |
| 6253136 | Method and apparatus for a limp home mode The present invention provides a method and apparatus for controlling a work implement in order to enable an earth moving machine to move to a service area after a failure within an implement control system occurs. The method includes the steps of detecti... | 06/26/2001 |
| 6205384 | System for setting operating parameters of a harvesting machine A system is described for setting a self-propelled harvesting machine having several machine components with respectively adjustable parameters wherein setting of these parameters takes into account external harvesting conditions. Means are provided for m... | 03/20/2001 |
| 6181999 | Dozing device for bulldozer A dozing system for a bulldozer capable of providing high operational efficiency in dozing operation and a smooth excavation face. If it is determined when operation is performed in an automatic digging mode that the load exerted on the blade is stable, a... | 01/30/2001 |
| 6148254 | Method and apparatus for controlling a bucket and thumb of a work machine An apparatus and method for controlling the clamping forces on an object being held between a bucket and a thumb of a work machine is disclosed. The apparatus and method controls the head and rod end pressures of the bucket and thumb hydraulic cylinders t... | 11/14/2000 |
| 6131062 | Apparatus and method for preventing an automatic operation sequence in a work vehicle An apparatus and method is disclosed for preventing the performance of an automatic sequence of operations of a work vehicle. The apparatus is a system that includes a databus, a plurality of input devices, a primary control unit coupled to the plurality ... | 10/10/2000 |
| 6128563 | Electronic control device for management of the steering in earth-moving machines An electronic control device for management of the steering in earth-moving machines, essentially comprises a programmable logic electronic control unit (1) which is arranged as an interface between a pushbutton console (2) for setting a steering mode and... | 10/03/2000 |
| 6112139 | Apparatus and method for wireless remote control of an operation of a work vehicle An apparatus and method is disclosed for wireless remote control of an output element coupled to a work vehicle. The output element performs work external to the vehicle and is actuated by an actuator controlled by an output controller in response to at l... | 08/29/2000 |
| 6112145 | Method and apparatus for controlling the spatial orientation of the blade on an earthmoving machine A blade control system is configured to control the spatial orientation of an earthmoving blade mounted on a frame of an earthmoving machine for working a surface of earth to a desired shape. The blade slope angle required to maintain a selected cross-slo... | 08/29/2000 |
| 6088621 | Portable apparatus for rapid re-programming of irrigation controllers An irrigation control system including an irrigation controller, a portable data shuttle, and a personal computer. The user creates a watering program comprising watering schedules by using a graphical user-friendly interface of the personal computer. The... | 07/11/2000 |
| 5961573 | Height control of an agricultural tool in a site-specific farming system A farming system which identifies the boundaries of agricultural fields and performs functions based upon whether a vehicle is located within a particular field is disclosed. The system includes a location signal generation circuit which receives position... | 10/05/1999 |
| 5897600 | Universal modular control system for mobile material distribution apparatus A universal modular control system for controlling a mobile material distribution apparatus is disclosed. The universal modular control system is adaptable for use with any of a plurality of distribution apparatus. It includes a control module for control... | 04/27/1999 |
| 5884204 | Active roadability control for work vehicles A system for reducing oscillations of an implement carried by a vehicle in a lifted position during travel. The implement is coupled to an implement positioning system including an actuator for raising and lowering the implement in response to a control s... | 03/16/1999 |
| 5733059 | Apparatus for coupling a cutting tool to a vehicle An apparatus (10) for coupling a cutting tool (12) to a vehicle (14) such as a tractor that permits the cutting tool (12) to pivot to a released position when it contacts an obstruction (38) and that returns the cutting tool (12) to its cutting position a... | 03/31/1998 |
| 5515927 | Control unit for controlling load on a bulldozer in the case of manual intervention A control unit for controlling load on a bulldozer in the case of manual intervention, comprising: an actual tractive force detector for detecting the actual tractive force of a vehicle body; a target tractive force setting device for setting a target tra... | 05/14/1996 |
| 5454432 | Implement control system An implement control system includes desired draft force setting apparatus and draft force sensing apparatus providing a draft force signal. It also includes engine speed sensing apparatus arranged to provide an engine speed signal of the same form as the... | 10/03/1995 |
| 4817726 | Actuating arrangement for a power lift A control system for the hitch of a tractor includes a motor for moving the mechanical control linkages connected to a hitch control valve, the motor being in the form of an electric motor. The motor is controlled by way of an electrical circuit which inc... | 04/04/1989 |
| 4809785 | Agricultural working vehicle with electro-hydraulic for regulating lifting mechanism arrangements An electro-hydraulic arrangement regulating the lifting mechanism actuatable by a hydraulic motor, on an agricultural working vehicle having a driven wheel, comprises a plurality of sensors including a position sensor forming an actual value position sign... | 03/07/1989 |
| 4713981 | Remote actuating mechanism A remote actuating mechanism, in particular for actuating a control lever of a three-point implement hitch, has a transmission unit with a slide which is movable longitudinally by means of a swingable driver. The driver can be held in an inoperative posit... | 12/22/1987 |
| 4677542 | Self-tuning regulator implement control A hitch control system generates a rockshaft valve control signal as a function of sensed draft force, rockshaft position and operator input. Periodically, an auxiliary or disturbance signal of certain amplitude, frequency and duration is superimposed on ... | 06/30/1987 |
| 4622803 | Header flotation The hydraulic circuit of the present invention allows flotation of the header without extensive use of accumulators and is readily adaptable to present open center hydraulic systems. The present invention is also adaptable to closed center hydraulic syste... | 11/18/1986 |
| 4601346 | Unit connected to a tractor for raising and lowering an agricultural implement A unit for raising and lowering an agricultural implement, which unit is connected to a tractor. The unit includes an attachment device (6) for attaching the implement to the tractor, a raising and lowering device (2, 5) for raising and lowering the imple... | 07/22/1986 |
| 4549610 | Vehicle with front and rear steerable wheels individually driven by hydraulic motors An agricultural tractor having six wheels which are each hydraulically drivable by individual hydraulic motors through hydraulic fluid supplied by respective hydraulic pumps. With each pump driving only one wheel, skidding of a wheel does not affect drive... | 10/29/1985 |
| 4537260 | Apparatus with rear and front power lift, common regulating and control elements, and changeover valve An apparatus for a tractor having a rear and front implement attachment mechanism. Each such mechanism has a hydraulic power lift which acts on it. The power lifts have in common a regulator and control device with a changeover valve. By activating this c... | 08/27/1985 |
| 4518044 | Vehicle with control system for raising and lowering implement A tractor includes a hitch for pulling a ground-engaging implement. A hydraulic cylinder is extendable and retractable to lower and raise the implement. A control system senses operating parameters, including wheel slip, engine speed, draft force and impl... | 05/21/1985 |
| 4503916 | Hybrid hitch control system A conventional non-electrical draft/position responsive hitch control system is modified to respond to an electrical control signal derived from sensed engine droop and wheel slip.... | 03/12/1985 |
| 4438818 | Draft control system for agricultural tractor A draft control system of the type in which a mechanical spring is employed to balance the draft forces of an implement trailed behind the tractor so as to correct the working depth of the implement in accordance with changes in draft forces, in which the... | 03/27/1984 |
| 4343365 | Electrically operated hydraulic power lift system A control system for a tractor hydraulical power lift system having an electrohydraulic actuator (22) coupled to a main hydraulic valve (21), comprising a feedback electronic control circuit including a circuit for mathematically combining a plurality of ... | 08/10/1982 |
