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| Number | Title | Issue Date |
| 8083004 | Ripper autodig system implementing machine acceleration control A control system for a machine having a power source, a traction device, and a ripping tool is disclosed. The control system may have a slip sensor configured to generate at least one signal indicative of machine slippage, and at least one actuator operable to posit... | 12/27/2011 |
| 7954556 | Using a can bus engine torque/speed message as load feedback for implement draft control A draft load control system for an agricultural tractor having electronic engine and draft load controllers interconnected by a digital communications bus over which parameters for engine load are made readily available to the draft load controller. The draft load c... | 06/07/2011 |
| 7798241 | Mechanical hitch control unit A mechanical hitch control system for a vehicle includes a draft force sensing member, a mechanical hitch control unit, a hitch valve actuator, and a cable transmitting a draft force signal to the hitch control unit. A draft cam is coupled to the draft force sensing... | 09/21/2010 |
| 7721813 | Implement/hitch draft control using hitch cylinder pressure as load feedback A draft load control system for a primary motive power source that uses hitch cylinder pressure to provide input to the control system of the draft load on the power source caused by a hitch-connected or a towed, ground-engaging implement. ... | 05/25/2010 |
| 7677323 | System and method for automatically adjusting control gains on an earthmoving machine System and method for automatically adjusting control gains on an earthmoving machine include a control system for controlling mechanisms that supply power to an earthmoving implement. The gains associated with the force to the implement are automatically adjusted d... | 03/16/2010 |
| 7658234 | Ripper operation using force vector and track type tractor using same A method of increasing efficiency and avoiding or reducing potential stall conditions is accomplished by configuring a ripper of a track type tractor responsive to a net force vector acting on the ripper. The net force vector is indicative of the various forces and ... | 02/09/2010 |
| 7588089 | Implement weight and center of gravity determination based on hitch cylinder pressure A theorem and method for determining the weight and center of gravity of a ground-engaging implement connected to a three-point hitch on an agricultural tractor or other prime mover using hitch cylinder pressure and hitch position as calibration inputs to a hitch co... | 09/15/2009 |
| 7370723 | Loading machine A loading machine is disclosed with at least one drive train, with at least one overload protection device for the drive train and with sensors for determining an overload state in the drive train. Critical operating conditions of the loading machine can be determin... | 05/13/2008 |
| 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 |
| 7337054 | Systems and methods for controlling slip A system is provided for controlling slip of a ground-engaging traction device of a work machine. The system includes an actual slip calculator operable to transmit an actual slip signal corresponding to an actual slip experienced by the work machine. The system als... | 02/26/2008 |
| 7222444 | Coordinated linkage system for a work vehicle A work vehicle with a tool pivotally attached to a linkage, an actuator for controllably moving the tool about its pivot, and a tilt angle sensor for sensing the absolute angle of the work tool relative to the earth. A controller is adapted to perform an auto-hold f... | 05/29/2007 |
| 7216024 | Industrial truck with a stabilizing device An industrial truck, in particular a counterbalanced fork lift truck, has a stabilizing device to increase its stability against tipping. The invention teaches that a plurality of wheel load sensors (R1, R2, R3, R4), each ... | 05/08/2007 |
| 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 |
| 7162348 | Articulated equipment position control system and method An articulated equipment position control system and method are provided for equipment consisting of motive and working components. The components are connected by an articulated connector, such as a pivotal hitch. GPS-derived positional data is utilized for power-a... | 01/09/2007 |
| 7121355 | Bulldozer autograding system A dozer blade control system controls the position of a bulldozer blade, maintaining the blade at a constant position as the dozer travels through a worksite. The control system monitors the angle of the dozer blade with respect to the earth and when it senses that ... | 10/17/2006 |
| 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 |
| 7100704 | Implement mounting trailer An implement support unit for cooperating with an implement-mounting device for an implement for mounting the implement on a trailer unit. Preferably, the support unit is a three point hitch type support unit. ... | 09/05/2006 |
| 7086214 | Mower suspension A suspension system for a tractor-drawn mower used for crops for agricultural purposes is made up of parallel links, connected at a first end to a frame and to a mowing unit at a second end. A torsion spring assembly, similar to that used for torsion axles, is used ... | 08/08/2006 |
| 7063167 | Self leveling towed implement An implement has a tongue used to tow the implement that can be raised or lowered with respect to the rest of the implement. The tongue is raised or lowered by a hydraulic cylinder. The raising and lowering ports of the cylinder are connected to two hydraulic accumu... | 06/20/2006 |
| 7051498 | Traction enhancement system for turf mowers A traction enhancement system and method of using the same for use with a turf mower having a vehicle frame, a first drive wheel operably mounted to the vehicle frame, and a cutting unit positionable in a first position, where the cutting unit is support by ground e... | 05/30/2006 |
| 7047735 | Increasing hydraulic flow to tractor attachments Hydraulic flow to tractor attachments such as a sweeper, snow thrower, breaker, auger or cold planer may be increased by diverting pressurized hydraulic fluid from the auxiliary pump. A diverter valve between the auxiliary pump and the auxiliary circuit of the loade... | 05/23/2006 |
| 6980959 | Configuring mechanical equipment A method and system of managing a configuration of mechanical equipment provides a structured procedure for managing information on parameters of the mechanical equipment to facilitate the maintenance of safety, legal compliance, performance, and reliability of the ... | 12/27/2005 |
| 6971452 | Device for controlling the position of a mountable implement relative to an implement carrier element A device for controlling the position of a mountable implement relative to an implement carrier vehicle has a mountable implement (2, 3, 4) which can be moved at a predetermined height by the implement carrier 1 following the ground. A support element ... | 12/06/2005 |
| 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 |
| 6749035 | Pitch alleviation system A hitch control system for a work vehicle combines a front suspension position signal, a hitch load signal and a hitch position signal to generate a valve command signal that controls hitch position so as to alleviate pitching and maximize front wheel ground contact... | 06/15/2004 |
| 6698524 | Implement hitch and control system A hitch for coupling an implement to a utility vehicle includes adjustable length coupling elements and a pivotal coupling unit coupled thereto. A control system automatically controls the length of the coupling elements to control the direction of the li... | 03/02/2004 |
| 6672399 | Hydraulic diverting system for utility vehicle A hydraulic fluid diverting arrangement for a utility vehicle provides additional pressurized hydraulic fluid supply to an installed backhoe attachment by diverting hydraulic fluid from the unused rockshaft or three-point hitch of the utility vehicle. A s... | 01/06/2004 |
| 6659192 | Hydraulic lift device for an attaching device A hydraulic lift device for an attaching device of a tractor which has a hydraulic pressure supply device and a hydraulic tank, comprising for each of two lower steering arms, a double acting hydraulic cylinder having a cylinder housing, a piston rod, a p... | 12/09/2003 |
| 6578641 | Hitch system with synchronized cylinders An implement/vehicle hitch system for coupling implements to a utility vehicle includes two hydraulic cylinders for adjusting the position of the implement. The hydraulic cylinders are connected to a pair of motor/pump units which cause the hydraulic cyli... | 06/17/2003 |
| 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 |
| 6547012 | Method and apparatus for controlling a tractor/implement combination A tractor/implement combination is controlled through the use of real-time data on the true draft force generated by engagement of an implement with the ground. A method of controlling a tractor/implement combination includes obtaining and storing calibra... | 04/15/2003 |
| 6442501 | Method and apparatus for controlling an implement A method and apparatus for determining a velocity of an implement and thereby moving an implement to a desired position. A control system has input signals representative of the implement arm limit position, the implement arm actual position and the imple... | 08/27/2002 |
| 6412569 | Concrete mixing hoe A hoe for facilitating manual intermixing of materials initially in heterogeneous phases, particularly dry concrete pre-mix and water, includes an elongated straight handle having a rear longitudinal portion adapted to be grasped within a person's hands, ... | 07/02/2002 |
| 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 |
| 6269885 | Blade height control system for a motorized grader The position of the blade of a motor grader is controlled to maintain a smoothly graded surface even when the grader's front wheels travel over undulating ungraded ground. This is accomplished by sensing the degree to which the grader frame pivots with re... | 08/07/2001 |
| 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 |
| 6250396 | Method and apparatus for controlling a hitch A processing device for determining a position of a first member capable of movement in at least two axes. A first processing device receives a first member actual position along a first axis. The first processing device determines and transmits a first m... | 06/26/2001 |
| 6230817 | Hitch assembly for a work vehicle A hitch assembly for a work vehicle includes a first draft link adapted to be pivotably coupled to the work vehicle, a second draft link adapted to be pivotably coupled to the work vehicle, a first linear actuator having a first end adapted to be pivotabl... | 05/15/2001 |
| 6216795 | Ultrasonic transducer based device positioning system and method An ultrasonic transducer position sensor for use as part of an automatic depth control system. The ultrasonic transducer position sensor works with a Console and remote Controller mounted in the tractor cab, power beyond Valving, and Depth Sensors, either... | 04/17/2001 |
