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6618659 |
Method of sharing hydraulic fluid, includes: inputting first signal from a first manual control and second signal from a second manual control; sending a first control signal controlling a first valve in response to first signal; sending...
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6202014 |
The present invention is directed to a computer based control system for controlling hydraulic and electromechanical actuators on a power machine, such as a skid steer loader. The computer based control system is configured to implement ...
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6064933 |
An electrohydraulic control system for loading a bucket of an earthmoving machine includes sensors for sensing when the machine is crowding a pile of material to be loaded. A command signal generator monitors the sensed "crowd" parameter...
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5819190 |
A ground leveling control system for a bulldozer, comprising: (a) a cutting edge position detector for detecting a position of a cutting edge of a blade with respect to the ground; and (b) a blade controller for controlling the blade to ...
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5622226 |
A method is provided for controlling the bounce of a work implement attached to a machine having an electro-hydraulic system. The method comprises the steps of sensing the operating pressure in an actuator arrangement connected between t...
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5178220 |
The device is mounted in an agricultural machine comprising two links for drawing an implement, a lifter member and a central control unit for controlling the member. The device comprises: two horizontal bars carried in the form of brack...
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4834461 |
Impact rippers are useful for ripping solid rock. The service life of the impactor can be extended if the impactor is operated only when the ripper shank is loaded sufficient to transmit the impact energy into the material being ripped. ...
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4802787 |
A control apparatus for a pavement breaker which includes a carriage, a lifting means for raising and lowering an impact arm which impact arm includes a tool for impacting a surface, mounted on one end and an oscillating member mounted o...
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4549610 |
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 doe...
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4413684 |
In combination with a conventional laser beam control system for controlling an earth scraping and storing apparatus, such as a box blade for example, for leveling terrain, an improvement detecting when the box blade is full and overflow...
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4328719 |
Apparatus (19) for sensing forces (29) such as in a power transmission apparatus (10) and magnifying the sensed forces suitably to provide an output (28) such as for use in controlling associated equipment (12, 18) to limit the forces. T...
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4320589 |
An improved snowplow apparatus provided with articulated quadrilateral means permitting vertical movement of a snow clearing blade which is kept in a lowered position by a compressed gas accumulator communicating with one or two hydrauli...
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4263973 |
A laser beam level control system for an earth-moving machine is provided with an automatic override function to temporarily block blade-down signals and raise the blade when lowering it or leaving it at its previous height would increas...
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4260025 |
A device for lifting an implement carried by an agricultural tractor three-point linkage has a flexible bar connected at its ends to the said lower linkage arms for rotation about a transverse axis, the reaction forces transmitted from t...
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4260024 |
A tractor three-point linkage has a hydraulic single-acting actuator for raising lower linkage arms through a linkage including respective vertical tie rods. A flexible compensating bar is rotatably supported by two fixed brackets on the...
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4173258 |
A laser beam level control system for an earth-moving machine is provided with an automatic override function to temporarily block blade-down signals and raise the blade when lowering it or leaving it at its previous height would increas...
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4157118 |
In a civil machine comprising a working tool provided on a vehicle with a travelling mechanism and a drive therefor, an automatic control system comprises a stroke detector for detecting the amount of stroke of a lifting cylinder operati...
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4062539 |
The control system is provided with a detector that detects whether the ripper is operated in a piercing operating mode or a digging operating mode. In the piercing operating mode the angle of the shank is adjusted to a preset piercing a...
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4031964 |
An automatic control system for a ripper used on a construction equipment in which a load detector is provided on the ripper for detecting load acting on the ripper shank and lift cylinders are actuated to automatically raise the shank w...
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3907038 |
A self-propelled soil stabilizer machine employs a heavy-duty single horizontal rotor for pulverizing and mixing soil it passes over. The rotor is driven by hydraulic motors which are mounted at the rotor ends and operated by a hydraulic...
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3697189 |
A pneumatic motor governor including a valve port located in the motor supply passage and axially aligned with the motor. The end of the motor carries a spindle and a closed end valve sleeve is slidably mounted on the spindle to reciproc...
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3599727 |
This invention consists of a horizontally disposed steel tube having a plurality of spaced openings therein. A steel bar, that likewise has a plurality of matching spaced openings therein, is located in the just mentioned steel tube. A s...
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3313354 |
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3247654 |
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3094693 |
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2775175 |
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2722874 |
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2631515 |
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1443124 |
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1373971 |
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1209084 |
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0313286 |
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