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8142132 |
Automatic over-center system
The present invention is directed to a control circuit for automatically bringing a hydraulically operated work arm into a particular position without having to manually reverse the direction of...
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8137047 |
Double-arm working machine
A double-arm working machine has an upper swing structure, an operator cabin, left swing post and right swing post provided in front of the upper swing structure, and a left work front A and right...
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8091467 |
Hydraulic valve circuit with damage-control override
Hydraulic valve circuits capable of variably limiting respective maximum hydraulic pressures at which an assembly of bidirectional hydraulic power devices can move respective clamping members, such...
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8070413 |
Control system for a load handling apparatus
A control system for a machine which includes a load handling apparatus for moving a load relative to a body of the machine. The machine includes a pivot about which a tipping moment is produced by...
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7934329 |
Semi-autonomous excavation control system
An excavation control system for a machine is disclosed. The excavation control system may have a tool, at least one operator input device configured to provide manual control over movement of the...
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7890235 |
Determination of remote control operator position
A system for controlling a work machine and work tool from a remote controller. The remote controller sends a control signal to a receiver assembly and machine controller. The machine controller...
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7853382 |
Loader boom control system
A work vehicle that includes a boom; a boom actuator connected to the boom, the boom actuator being adapted to controllably move the boom about a boom pivot in response to receiving a boom control...
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7845896 |
Loader
A loader includes a hydraulically operated extension arm, a load sensor for monitoring the load condition on the loader and a hydraulic arrangement for actuation of the extension arm and/or an...
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7810260 |
Control system for tool coupling
A control system for a tool coupling of the type that attaches a tool to an excavator dipper stick and provides for rotation of the tool with respect to the dipper stick about an axis, and further...
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7797860 |
Automated control of boom or attachment for work vehicle to a preset position
A method and system for automated operation of a work vehicle comprises a boom having a first end and a second end opposite the first end. A first hydraulic cylinder is associated with the boom. A...
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7752778 |
Automated control of boom or attachment for work vehicle to a preset position
A first hydraulic cylinder is associated with the boom having a first end and a second end opposite the first end. A first sensor detects a boom angle of a boom with respect to a support (or a...
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7752779 |
Automated control of boom or attachment for work vehicle to a preset position
A first hydraulic cylinder is associated with a boom. A first sensor detects a boom angle of a boom with respect to a support (or a vehicle). An attachment is coupled to one end of the boom. A...
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7756622 |
Method and device for damping the displacement of construction machines
The invention relates to a method and a device for damping the displacement of construction machines, in particular wheel loaders, comprising working equipment that is driven by means of a...
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7748147 |
Automated control of boom or attachment for work vehicle to a present position
A method and system for automated operation of a work vehicle comprises a boom having a first end and a second end opposite the first end. A first hydraulic cylinder is associated with the boom. A...
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7717664 |
Loader
A loader includes a hydraulically operated extension arm, a load sensor for monitoring the load condition on the loader and a hydraulic arrangement for actuation of the extension arm and/or an...
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7712589 |
Device and method for braking the supporting booms of an earthmoving machine
This invention relates to a device for reducing the reaction force of the supporting booms positioning cylinder of an earthmoving machine, comprising a braking system applied between the supporting...
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7657355 |
Device for actuating a bending mast in a large manipulator and a large manipulator comprising said device
The invention relates to a device for monitoring the safety of a bending pole (22) in a large manipulator, whereby the arms (23-27) of the mast can be pivoted in relation to each other by means of...
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7640683 |
Method and apparatus for satellite positioning of earth-moving equipment
A method and apparatus for using satellite positioning systems to more precisely locate the position of a portion of an attachment on an earthmoving machine is disclosed. More specifically,...
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7621711 |
Hydraulic control system for mobile equipment
What is disclosed is a hydraulic control system for a mobile equipment, in particular for a wheel or backhoe loader, wherein a shovel is linked to a boom. The angular position of the shovel may be...
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7617620 |
Work vehicle with staggered control level
A work vehicle with a working implement, comprising: a control lever 49 for controlling the working implement 3, the control lever being rockably disposed laterally of a driver's seat 16 mounted on...
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7519462 |
Crowd force control in electrically propelled machine
A method of operating an electrically propelled machine includes the steps of, operating an electrical power source for the machine, and limiting an output torque of an electrical propulsion motor...
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7487609 |
Hydraulic circuit device of hydraulic working machine
To permit smooth performance of both of an operation requiring a high pressure and an operation desired to produce a pressure at a suppressed level, a shuttle block positioned between pilot...
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7478489 |
Control system for an electronic float feature for a loader
The present invention is related to a loader of a construction apparatus such as front-end wheel loader or an agricultural tractor. Specifically, the present invention is related to a control...
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7344351 |
Electronic boom height sensor
A boom position detecting device that detects a boom angle on a work vehicle for a boom that rotates about a pivot. The device includes a boom angle follower and positional sensor. The boom angle...
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7337563 |
Work vehicle having improved mounting structure of control valve unit
A work vehicle includes a traveling vehicle, a backhoe having a base frame detachably connected to a rear portion of the traveling vehicle and an excavator detachably attached to a rear portion of...
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7185515 |
Invert arm assembly for glassware forming machine
An invert assembly for an individual section glassware forming machine includes an invert base that is oscillated about an axis between angularly spaced apart first and second positions, a double...
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7140830 |
Electronic control system for skid steer loader controls
An electronic control system for a machine having a boom assembly and an implement assembly. A microprocessor is provided having an input and generating first and second output signals. A first...
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7093383 |
Automatic hydraulic load leveling system for a work vehicle
A machine has a boom, that is pivotally raised and lowered by a first cylinder, and has a load carrier that is pivoted at the end of the boom by a second cylinder. As a machine operator commands...
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7079931 |
Positioning system for an excavating work machine
A system and method for determining a position of a work tool of a work machine is provided. A desired surface configuration for a geographic location is identified. A mode of operation for the...
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7055269 |
Wheeled vehicle provided with an axle oscillating about a longitudinal axis
A wheeled vehicle includes a bottom chassis; a top chassis, which is coupled to the bottom chassis so that it is able to turn about a vertical axis; an operating arm coupled to the top chassis; an...
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6968241 |
Device and method for controlling the position for working devices of mobile machines
The invention relates to a device for controlling the position for work devices (41) of mobile machines (40). The inventive device comprises a measuring device (1,2) for measuring an angle (α) ...
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6968264 |
Method and system for controlling a mechanical arm
A system and method for controlling a mechanical arm comprises planning a desired path of a mechanical arm. An actual path segment of the mechanical arm is measured. An error is determined between...
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6923285 |
Attachment control device
The present invention provides an attachment for use with a power machine. An attachment control device includes a controller, such as a microprocessor, a microcontroller or other digital computer...
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6897967 |
Method of grading railroad beds and a laser measuring device
Railroad beds require regrading in order to permit for an increased axial load. There are often cables or tubes embedded in the roadbed at the roadbed sides, making regrading difficult. In...
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6829835 |
Lifting vehicle
In a lifting vehicle having a holding and lifting device(5, 6) for holding and raising or lowering goods (9) and having a central operating device for controlling the travelling and handling of the...
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6819993 |
System for estimating a linkage position
A system and method for estimating the position of a mechanical linkage is disclosed. An estimated position of a mechanical linkage is set to an initial position. The movement of the mechanical...
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6802687 |
Method for controlling a raise/extend function of a work machine
A method for controlling the raise/extend function of a work machine is provided. The method comprises sensing the lateral orientation of the work machine, comparing the sensed orientation to a...
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6779961 |
Material handler with electronic load chart
The present invention is directed to a material handler that includes a frame, a telescoping boom, a boom extension sensor, a boom angle sensor, and a control system. The telescoping boom is...
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6763619 |
Automatic loader bucket orientation control
The invention comprises a work vehicle, a boom attached to the vehicle, a tool pivotally attached to the boom, an actuator for controllably moving the tool about its pivot, and an angular velocity...
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6757994 |
Automatic tool orientation control for backhoe with extendable dipperstick
The invention comprises a backhoe with a tool pivotally attached to an extendable dipperstick, an actuator for controllably moving the tool about its pivot, and an angular velocity sensor for...
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6736216 |
Laser-guided construction equipment
A construction apparatus (12) and method of controlling a construction apparatus from a laser source (38) made up of a substantially non-rotating beam (56). The construction apparatus includes a...
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6725142 |
Control system for a work machine digging assembly
A control system for orienting a swing axis of a work machine is disclosed. The work machine includes a swing frame and a frame structure, and the control system includes an operator interface...
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6711838 |
Method and apparatus for determining machine location
A method is provided for determining the location of a work machine at a work site, where the work machine includes a house, a boom connected to the house, a stick connected to the boom, and a work...
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6691437 |
Laser reference system for excavating machine
A level sensing system for use with an excavating machine includes a light receiving sensor, mounted on the dipper stick of the machine, and an inclinometer, also mounted on the dipper stick of the...
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6675904 |
Apparatus for controlling an amount of fluid for heavy construction equipment
A set amount of fluid can be constantly supplied to an actuator and a flow-back of fluid from the actuator can be prevented, even in case of developing variations of a load pressure of the actuator...
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6568898 |
Hydraulic shovel with hoisting hook
A hoisting hook is arranged on a stick boom top pin for attaching a bucket to a distal end of a stick boom and hung at a bucket scooping face side. A bucket fall prevention valve is provided at...
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6564480 |
Working apparatus for construction machine
In a working apparatus, a recessed portion is formed at an end surface of a pin provided at a boom to house a case of an angle sensor in the recessed portion. A flange is projected from the case...
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6430850 |
Seat switch activated pump
A backhoe loader is provided with a reversible operator's seat having a first working position facing the loader and a second working position facing the backhoe. A first hydraulic pump directs...
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6374147 |
Apparatus and method for providing coordinated control of a work implement
An apparatus and method for providing coordinated control of a work implement of a work machine. The implement includes a boom having a first end portion and a second end portion, with the first...
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6356829 |
Unified control of a work implement
A control system for a backhoe apparatus is disclosed. Backhoe apparatus control system includes a kinematic optimal control including the augmentation of additional tasks that can be formulated...
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