Abstract: A hydraulic system for use in a work vehicle with a powered implement is disclosed. In one embodiment, the hydraulic system may include a first hydraulic circuit including a first hydraulic pump with a low pressure and low flow output, switch and valve; a second hydraulic circuit including a second hydraulic pump with a high flow and high pressure output, switch and valve; and a third hydraulic circuit including a third hydraulic pump with a high flow and high pressure output, switch and valve. The first, second, and third circuits each include an output selectively combinable with each other by an operator control which controls the switch and valve configurations. The hydraulic system has several configurations.

Abstract: Certain embodiments of the disclosure include planers with side plates which may be adjusted independently or simultaneously. In a preferred embodiment of the present invention, a planer with adjustable side plates is comprised of a planer housing enclosing a grinding drum with grinding tools to be moved over a surface to be ground in a direction of travel and a pair of side plates are arranged substantially parallel to the direction of travel and mounted substantially adjacent the housing. The side plates are mechanically linked to the housing and are hydraulically controlled to be adjustably raised and lowered relative to the housing.

Abstract: Certain embodiments of the disclosure include planers with side plates which may be adjusted independently or simultaneously. In a preferred embodiment of the present invention, a planer with adjustable side plates is comprised of a planer housing enclosing a grinding drum with grinding tools to be moved over a surface to be ground in a direction of travel and a pair of side plates are arranged substantially parallel to the direction of travel and mounted substantially adjacent the housing. The side plates are mechanically linked to the housing and are hydraulically controlled to be adjustably raised and lowered relative to the housing.

Abstract: The internal movement of one embodiment of a sealed fuel level sender employs two magnets disposed diametrically opposite each other about a pivot. The actuator that is operated by in-tank fuel level has two magnets disposed diametrically opposite each other about the axis with one pole of each magnet of the actuator confronting an opposite pole of a respective magnet of the movement to provide the magnetic coupling for causing the movement to follow the fuel level while minimizing, and preferably substantially eliminating, cross thrust on the pivot. Pole pieces may be associated with the magnets in a further embodiment. Still another embodiment employs magnets to only one side of the pivot, but with pole pieces that reduce cross thrust.

Abstract: In certain preferred embodiments, the present invention provides a grinding machine for creating depression patterns in a surface such as asphalt or concrete. The depression pattern may be a rumble strip for alerting drivers who drift off a driving lane, or may be for other uses. Use of a depression pattern (instead of protrusions) eliminates interference with snowplow operation in areas where plows are used. In the present invention, the grinding machine is based on a trolley which moves at a uniform height along a surface, and includes a forward “gauge” wheel which controls the relative grinding drum depth based on the wheel position and rotation. In a preferred embodiment, the grinding assembly is raised and lowered relative to the trolley in correspondence with the advancement of the trolley.

Abstract: One preferred embodiment of the present invention, provides an auxiliary hydraulic drive system having a total hydraulic flow. The system includes a primary hydraulic pump operable to provide hydraulic flow for an implement, and a flow control valve in communication with the hydraulic flow. The flow control valve operates to allow an optimum flow rate and diverts the excess flow amount when the total hydraulic flow exceeds the optimum flow rate. A secondary hydraulic pump is selectively operable to provide additional hydraulic flow. A control system is operable to engage the secondary pump when the total hydraulic flow drops below a minimum flow level; and the control system operates to disengage the secondary pump when the total hydraulic flow exceeds a maximum flow level. In a further embodiment, the invention provides a control unit for a hydraulic system. The control unit includes a sensor to measure total hydraulic fluid flow in a system; and a controller coupled to the sensor.

Abstract: An in-tank fuel level sender (26) for signaling the level of liquid fuel in a motor vehicle fuel tank (22). An enclosure (31) forming a hub of the sender provides an interior that is sealed against intrusion of fuel. An actuator (110, 122) is positionable on an exterior of the enclosure in correlation with liquid fuel level. A movement (52) within the interior of the enclosure follows the positioning of the actuator. An electric circuit element (62; 86) within the interior of the enclosure is operated by the movement to provide an electric characteristic for transmission through the enclosure to signal the liquid fuel level.

Abstract: An electric device contains a medium interposed between first and second electric elements to provide electric continuity between the first element and a defined reference point of the second element throughout a defined range of sliding travel of one of the elements along the medium in a direction that is transverse to a favored direction of conduction through an electrically anisotropic conductive region of the medium that is composed of electric conductors that conduct in a favored direction and are electrically separated by solid dielectric.

Abstract: One preferred embodiment of the present invention, provides an auxiliary hydraulic drive system having a total hydraulic flow. The system includes a primary hydraulic pump operable to provide hydraulic flow for an implement, and a flow control valve in communication with the hydraulic flow. The flow control valve operates to allow an optimum flow rate and diverts the excess flow amount when the total hydraulic flow exceeds the optimum flow rate. A secondary hydraulic pump is selectively operable to provide additional hydraulic flow. A control system is operable to engage the secondary pump when the total hydraulic flow drops below a minimum flow level; and the control system operates to disengage the secondary pump when the total hydraulic flow exceeds a maximum flow level. In a further embodiment, the invention provides a control unit for a hydraulic system. The control unit includes a sensor to measure total hydraulic fluid flow in a system; and a controller coupled to the sensor.

Abstract: A rotatable implement depth control apparatus consisting of a mounting plate having an upper end, a lower end, a forward face, a rearward face, a right side, a left side, and a lateral axis extending from the right side to the left side, the mounting plate being rotatable about the lateral axis; a rollable trolley, the rollable trolley having a forward end, a rearward end, a right side, and a left side; a rotatable implement carrying frame having a forward end, a rearward end, a right side, and a left side, the forward end of the rotatable implement carrying frame being pivotally attached to the rollable trolley; a rotatable implement having a right side, a left side, and having an axis of rotation extending from the right side to the left side, the rotatable implement being rotatably mounted within the rotatable implement carrying frame; and, a plurality of arms for transferring rotational motion of the mounting plate about the lateral axis to pivotal motion of the frame about the pivotal attachment to the r

Abstract: An earth compacting machine for attachment to the lift arms of a front loader tractor or skid steer loader, the lift arms having forward implement attachment ends, the lift arms having bucket rams providing pivotal motion of implements attached thereto, the earth compacting machine consisting of an earth compacting plate having an upwardly chamfered forward end, an attachment plate fixedly attached to and extending upwardly from the earth compacting plate, the attachment plate being adapted for attachment to the forward implement attachment ends of such lift arms of such front loader tractor or skid steer loader; and an imbalanced wheel vibrator fixedly attached to the upper surface of the earth compacting plate; the earth compacting plate further comprising a dirt grading blade section fixedly attached to the chamfered section of the earth compacting plate, the dirt grading blade section being positioned for dirt grading through actuation of the bucket rams.

Abstract: A vibrating mechanism comprising a housing having a lower end and having an interior space; an imbalanced wheel having a right side, a left side, an axis of rotation, and a plane of rotation situated between the left and right sides, the plane of rotation extending perpendicularly outward from the axis of rotation; a drive axle rotatably mounting and positioning the imbalanced wheel within the interior space of the housing so that the plane of rotation extends through the lower end of the housing; and an apertured base plate capable of alternately fixedly attaching the lower end of the housing to and removing the lower end of the housing from an earth compacting machine, the apertured base plate being fixedly attached to the lower end of the housing.

Abstract: An apparatus for engaging a surface, the apparatus consisting of a rotatable member for engaging the surface, the rotatable member having an axis of rotation; a rocker, the rocker having a forward end, a rearward end, and a surface contact face, the surface contact face of the rocker extending from the forward end of the rocker to the rearward end of the rocker; and a support wall and drive axle rotatably mounting the rotatable member over the rocker so that, upon contact of the surface contact face of the rocker with the surface, and upon forward or rearward rocking motion of the rocker, the axis of rotation of the rotatable member moves away from or toward the surface, causing the rotatable member to engage the surface at varying depths.

Abstract: A grinder comprising an axle; a multiplicity of grinding teeth; and a plurality of grinding teeth suspending discs; the grinding teeth suspending discs being fixedly attached to the axle; each grinding tooth being fixedly attached to one of the grinding teeth suspending discs; the grinding teeth suspending discs fixedly suspending the grinding teeth around the rotatable axle; the grinding teeth suspending discs positioning the grinding teeth in an ellipse, so that each ellipse has a size, a shape, and a tilt with respect to the axle causing the orbital radiuses of the grinding teeth to be equal in length.

Abstract: An hydraulic line and valve assembly for supplying hydraulic pressure to an hydraulic auxiliary implement, the implement being adapted for attachment to a construction vehicle having an hydraulic power system, the implement having an hydraulic motor driven workpiece, and the implement having a plurality of hydraulic positioning means; the hydraulic line and valve assembly comprising an on demand priority flow control valve, a branched primary pressure line an end of which being fixedly attached to the on demand priority flow control valve, a plurality of position control valves, the position control valves being fixedly attached to the opposing branched ends of the primary pressure line, and a branched hydraulic load signaling line extending from the position control valves to the on demand priority flow control valve, the hydraulic load signaling line being capable of sending pressure signals to the on demand priority flow control valve causing said valve to divert hydraulic pressure to the position control

Abstract: A tree stump cutting and removing apparatus attachable to the lift arms of a skid steer front loader construction vehicle having an hydraulic power system, the tree stump cutting apparatus comprising a flying debris shielding plate having a plurality of attachment means on its back side adapting the flying debris shielding plate for fixed attachment to the lift arms of the skid steer front loader construction vehicle, and a cutting wheel extension arm, the cutting wheel extension arm being pivotally mounted upon the flying debris shielding plate, and positioned thereon to lie laterally to the side of the vehicle's operator's seat, allowing an operator of the apparatus a line of sight for viewing and controlling stump cutting performed by the apparatus.