Abstract: A preferred embodiment of the invention generally comprises a hopper container attached to the top face of a spreader console having an electrically-powered spreader plate positioned within a distribution opening in the front center of the front face of the spreader console and operated with a spreader control switch extending down from the right side of the lower horizontal base of the spreader console. A conventional electric motor is housed in a motor compartment that extends from the center of the lower horizontal base of the spreader console. A conventional battery is housed within a battery compartment located on the left side of the motor compartment. The battery compartment is accessed via an access panel. It is contemplated that the device will be carried by the user in front of his body while walking over the area where the material is to be distributed.

Abstract: A spreader control system digitally filters noisy load cell measurements and inaccurate flow rate measurements to form an optimal estimate of material weight in a spreader bin. This estimate may be combined with spreader swath width and vehicle speed to determine application rate. When actuators for parameters such as apron speed or gate size are available, spreading rates may be controlled with active feedback.

Abstract: An apparatus diverts the flow of bulk solids into a bin from a discharge of a bulk solids conveyor. The apparatus contains a fitting that attaches to the discharge, a frame with a vertical conduit, at least two baffles that pivot on rotating shafts and are capable of variable positioning between a substantially vertical position that opens the vertical conduit of the frame and a substantially horizontal position that substantially closes the vertical conduit of the frame, and a drive motor to rotate the baffles.

Abstract: A riding lawn mower mounted drop spreader apparatus is used for spreading a granular material while mowing. The spreader includes a hopper for holding a quantity of a granular material to be dispensed with a control gate which controls the amount of material distributed while mowing. An auger located in the hopper has a drive motor which can also be controlled by an operator of the mower. The hopper has a mounting frame for mounting the hopper and agitator mechanism on a rear chassis region of the lawn mower. An operator can visually observe the amount of material distributed by observing the mowed path behind the mower during use.

Abstract: A chute assembly may include a chute having an inlet and an outlet and an adjustment mechanism. The adjustment mechanism may be used to move the chute to adjust the outlet: forward to back with respect to a spinner disc; and/or, (2) side to side with respect to the spinner disc in order to change the spreading characteristics.

Abstract: The invention is directed at devices and methods for regulating the operation of a spreader assembly's particulate material distribution in response to changing vehicle conditions.

Abstract: A spreader assembly may include a hopper, an auger mechanism, a torque sensor that provides a signal based on a condition of the auger mechanism and, a controller that receives the signal from the torque sensor and determines a fill status of the hopper based on the signal from the torque sensor.

Abstract: A broadcast spreader provides for effective control of the flow of granular material to a rotating fan through use of a gate assembly in combination with an auger assembly. The broadcast spreader further includes a means for directing the granular material onto the fan, thus allowing for the shifting of the distribution pattern of the granular material from side to side.

Abstract: An electrically-powered spreader for spreading a granular product is disclosed. The spreader may comprise a cap used to close a bottle containing the granular product. When in the open position, the bottle may be tilted into a position in which the granular product is fed by the force of gravity through an opening and into the spreader cap. A moving member within the spreader cap interacts with the granular product to propel it out of an opening in the spreader cap. In this way, the granular product is broadcast out of the bottle and onto the treatment area around the bottle.

Abstract: A particulate material conveyor uses an endless loop that has a feed path arranged near a bottom of a load of material to be fed and a return path arranged above the feed path and within the load where the return path is protected by a cover. Material can flow under the cover onto the feed path without filling the return path under the cover. A spinner can be combined with a conveyor to form a spreader, and the conveyor and the spinner can be driven by a single motor through reduction drives. The spreader components are mounted on a sprocket drive shaft to pivot between deployed and stowed positions.

Abstract: A plastic tailgate mounted spreader adapted to replace the tailgate of a vehicle. The tailgate mounted spreader has a plastic hopper having a width and height generally equal to the width and height of the vehicle tailgate. A frame having at least a top member and a bottom member supports the hopper. In the disclosed embodiment, the frame also includes side members. The top member has first and second arms extending from the top member that are adapted to be connected to the vehicle. The bottom member has first and second rods extending from the bottom member that are adapted to be connected to the vehicle and in particular to the clamps on the vehicle that control the release of the bucket. An auger is mounted within the plastic hopper to auger material to a discharge opening. The auger is mounted between the side members in the preferred embodiment.

Abstract: The present invention relates to a device to be used for the mechanized distribution of natural antagonists for the treatment of crops grown in greenhouse or in open field, under organic and/or integrated regimen, improving uniformity of distribution and concomitantly reducing the time spent in the distribution, with respect to other known systems in the current state of the art.

Abstract: The invention relates to a device for filling a chamber with a divided solid comprising a divided solid feeder hopper (1), an exhaust chimney (2) fixed to said hopper or connected thereto by a supply conduit (3), a motor unit (4) rotatably driving a shaft (5) which is substantially disposed in the direction of the exhaust chimney and at least one deflector member (8) which is mounted downstream of the output orifice(s) (6, 7) of the exhaust chimney and is pivotable about sail shaft (5) in such a way that it angularly moves away therefrom due to a centrifugal force when said shaft (5) rotates. The shaft (5) is embodied in such a way that it is hollow and shaped in the form of a tube whose internal diameter is sufficient for passing a functional device (9) therethrough.

Abstract: A material spreader assembly for the broadcast spreading of particulate material from the trailer hitch of a vehicle. A hopper for storing the particulate material is supported by a frame having a trailer hitch coupler for connection to the vehicle. A spreader including a spinner driven by an electric motor receives and disperses the particulate material. A control circuit receives electric current from the vehicle via a plug interface and a wiring harness and controls the operation of the spreader. A remote communicates user commands to the control circuit. The control circuit includes a motor control processor that controls a motor power relay and a motor driver to gradually ramp up the current supplied to the spreader for start up the spreader while preventing a high transient current draw spike. Component feedback sensors enable the motor control processor to provide an emergency shut off feature and warning signals.

Abstract: A grain spreading device that uses a pre-spreading device within a cone shaped guide to provide uniform distribution of grain. Specifically, the pre-spreading device has an opening therein such that a distance between the opening and the outer periphery of the pre-spreading device forms a shelf to direct grain toward the opening to provide a uniform distribution of the grain. Additionally, the pre-spreading device can have laser cut knockouts to adjust the pre-spreading device to a plurality of different spreading devices.

Abstract: A work vehicle having a fluent material spreader comprising two counter-rotating variable speed impellers adapted to receive and broadcast fluent material. A right-side impeller broadcasts out to a right-side material broadcast width, and left-side impeller broadcasts out to a left-side material broadcast width. Rotational speed of the right-side impeller is commanded to achieve a desired a right-side material broadcast width, and rotational speed of the left-side impeller is commanded to achieve a desired a left-side material broadcast width. Command of the right-side and left-side impellers is achieved either manually by and operator, or automatically by a control system based on sensor input.

Abstract: A material spreading device for spreading material over a targeted area includes a receiving portion for receiving a plurality of bags of material, a hopper assembly and a material moving device. The material spreading device is configured for use on a vehicle. The hopper assembly has a bag holding portion and a material dispensing bin. The bag holding portion receives at least some of the bags and retains the bags at or near the material dispensing bin. The hopper assembly includes at least one opening device for opening the bags such that material within the opened bags is deposited into the material dispensing bin. The material dispensing bin is operable to dispense or broadcast the material over the targeted area. The material moving device is operable to move the bags of material along the receiving portion and toward the hopper assembly.

Abstract: An improved spreader assembly adapted to be mounted on a vehicle having a tailgate and a bumper. The improved spreader assembly includes a hopper and a retaining arrangement. The hopper has an upper section and a bottom section. The bottom section has a base surface adapted to at least partially rest on a top surface of the bumper. The retaining arrangement includes a band that fits at least about a portion of a front face of the upper section of the hopper. One end of the band is adapted to connect to the vehicle to maintain at least a portion of a back face of the upper section at least closely adjacent to the tailgate of the vehicle.

Abstract: An agricultural spreader (100) includes material storage means (1) for storing agricultural material (2), at least one material spreading means (4) to spread the agricultural material (2) onto a surface (20) below the agricultural spreader (100) and variable speed material conveying means (3) for conveying the agricultural material (2) from the material storage means (1) to the material spreading means (4). The spreader (100) further includes an inclinometer means (7) for measuring a pitch of the agricultural spreader (100) relative to a horizontal plane and control means (6) adapted to vary the speed of the variable speed material conveyor means (3) in response to at least one input, at least one of which is an output (8) from the inclinometer means (7), in order to provide a required supply rate of agricultural material (2) to the material spreading means (4). In an alternative embodiment the control means (6) controls the area of an aperture (11) of a metering means (10).

Abstract: A twin discharge conveyor mounted on a spreader truck is shown including two parallel mounted conveying mechanisms such as augers, belt conveyors and chain conveyors contained within a conveyor trough that is mounted laterally on a truck chassis adjacent the front end of a frame mounted material storage container. The conveying mechanisms are independently controlled by separate hydraulic motors so that material can be discharged to the left and to the right of the truck simultaneously and in varying amounts.

Abstract: The invention comprises a towable trailer having a first frame and a bin, conveyor, and spinners mounted on a second frame. The bin carries materials which are conveyed by the conveyor to the spinners at the rear of the bin which spin and spread the material on the ground as the trailer is towed along the ground. The trailer is towed by a powered vehicle. A remote control device has an electrical connection to the mechanism on the trailer for operating the conveyor and spinners. The remote control device can be mounted on the trailer and operated or by cable from equipment or mechanism on the trailer to the remote control device, the remote control device may be operated on the control panel of the powered vehicle.

Abstract: A seed meter and accelerator comprises a stationary housing, a stationary axially extending dispensing rim, a radially extending flange and a rotating disc. The stationary housing is provided with an axially extending metering rim. The meter rim is provided with a metering gap. The stationary axially extending dispensing rim is located radially outward from the metering rim and is provided with a dispensing gap. The radially extending flange extends between the axially extending metering rim and the axially extending dispensing rim. The rotating disc is provided with an inner portion having circumferentially arranged seed pockets and an outer portion having seed dispensing openings. Each seed pocket corresponds to a seed dispensing opening. Passages extend between the seed pockets and the seed dispensing openings. The seed pockets of the inner portion are located adjacent to and radially inward from the metering rim.

Abstract: A rear mounted spreader having a horizontal auger. The spreader is ideally suited to spread bulk salt and sand, but can effectively be used to spread any spreadable material. The spreader is mounted to a vehicle and the auger is generally perpendicular to the longitudinal axis of the vehicle. The spreader includes a flow plate to facilitate proper material flow. The spreader also includes a vehicle-mounted control that can independently control the auger and spinner and can control the vibrator.

Abstract: A distributor apparatus is disclosed for spreading materials. The apparatus includes a container having a first and a second end and a first and a second side, the ends and the sides defining therebetween an opening for the reception therein of the materials. The container defines an outlet for the distributing therethrough of the materials. A distributing device is disposed in the vicinity of the outlet, the distributing device being pivotally secured to the container about a pivotal axis. The distributing device further includes a frame, a driven device rotatably secured to the frame for ejecting the materials from the container, a driving device for rotating the driven device such that the materials are moved from the container through the outlet by the driven device so that spreading of the materials from the container is permitted, a drive for driving the driving device and a guide for guiding the driving device between the driven device and the drive.

Abstract: A mobile products applicator includes a monitoring system particularly adaptable for use in selected product management applications, wherein application rates for selected products stored on-board one or more storage devices are measured on-the-go and visually reported to an applicator operator in near real-time. The mobile products applicator provides environmental advantages to all through enhanced resource management by eliminating or significantly reducing ground and/or water contamination.

Abstract: A discharge apparatus is disclosed for discharging materials from a container onto an open area such as a field. The apparatus includes a power discharge device which is disposed adjacent to a discharge outlet defined by the container. The arrangement is such that when the apparatus is being used to spread the materials onto the open area such as the field, the materials move from the container through the outlet towards the power discharge device for discharging the materials at a location on the field. A power source is drivingly connected to the power discharge device for rotating the power discharge device. A power sensor is provided for sensing the power supplied by the power source which is approximately the power used by the power discharge device, the power sensor generating a first signal which is correlated to the spread rate of the materials discharged.

Abstract: A granular material spreader is adapted for towing behind a yard tractor. A frame upports an inverted cone which is sized to contain a supply of granular material for distribution. The bin sweep rod is carried adjacent to the inside surface of the cone, and turns a drive spring. The drive spring drives a helix, which rotates about the bin sweep rod, driving the granular material toward the narrow base of the cone. Should the helix become jammed, the drive spring snaps past the helix, rather than risk damage by forcing its movement. A bin sweep drive wheel is also driven by the revolution of the bin sweep. Movement of the wheel against the an upper portion of the outside surface of the cone moves the bin sweep rod and helix in a circular path about the inside surface of the cone. A valve at the base of the cone allows granular material to drop into a housing which defines slots about portions of its perimeter.

Abstract: The present invention provides a two-wheeled, self-propelled broadcast spreader. One embodiment of the present invention is a self-propelled broadcast spreader mounted on a frame and having a product hopper mounted on the frame. An axle is rotatably mounted to said frame and has opposing ends. Two wheels are mounted to the opposing ends of the axle wherein at least one wheel is driven by rotation of the axle. A motor is mounted to the frame and is coupled to a transmission. A drive mechanism is coupled between the transmission and the axle, wherein operation of the transmission drives the axle and correspondingly propels the wheel. A spreader gearing is coupled to the axle wherein the spreader gearing is driven by rotation of the axle. A spreader plate is mounted to the spreader gearing, wherein the spreader plate is situated to receive product fed from the product hopper. During use, the spreader plate is rotated by the spreader gearing to broadcast product.

Abstract: Systems for reducing the possibility of inadvertent activation of an auger located in a supply body and/or spreader device while the covers of such a body or spreader device are open are provided. A motor that is drivingly connected to the auger is provided, as is a power supply for the motor that includes first and second engageable couplings. An arm located adjacent the spreader device is included, and is movable between a position that prevents opening of the cover and a position that permits opening of the cover. The first coupling is located with respect to the arm so that the first and second couplings may be engaged only when the arm is in a position that prevents the cover from opening. The cover can only be opened when the first and second couplings are separated, thereby interrupting the power supply to the motor and preventing operation of the auger.

Abstract: A material spreader comprising a mobile tank for receiving and discharging waste material, such as manure. The spreader includes a conveying assembly comprising one or more augers rotatably mounted in the tank for conveying material received in the tank to a discharge area. An opening in the vicinity of the discharge area permits material to be dispensed to a slinger assembly mounted outside the tank adjacent the opening. Material is distributed by the slinger in a controlled pattern as the tank is transported over a field. A control system is provided for selectively controlling the rate and pattern of the material being distributed, based on characteristics of the material. A field is divided into cells and data relating to the nutrient demand of each cell is collected and stored in tables in a memory. A GPS receiver detects the location of the spreader as it moves over a field.

Abstract: Apparatus and method for depositing salt granular materials upon a highway pavement at practical speeds. The deposition forms two narrow bands of the salt through utilization of two impeller-based mechanisms which are canted downwardly at an acute angle toward the pavement. The dump bed of trucks utilizing the apparatus is maintained in a down orientation through the utilization of a salt transport mechanism implemented as dual augers extending the length of the truck bed. Two embodiments of the apparatus are described each being self-contained and mountable upon a truck bed with relative ease. In one embodiment, a brine formation tank of generally triangular cross-sectional configuration is combined with a brine holding tank to form the sides of a V-box hopper structure. The brine formation tank is charged with salt and water to form a saturated brine which is permitted to migrate through a baffling system to the brine holding tank.

Abstract: There is disclosed a method of distributing a liquid composition over the ground from travelling equipment, the composition comprising an active ingredient, in which method the concentration of the active ingredient in the liquid composition is varied in dependence on the speed of the travelling equipment over the ground, the liquid composition also comprising a viscosity modifying agent, the method comprising varying the relative proportion of the viscosity modifying agent in the liquid composition in dependence on the speed of the travelling equipment, thereby to control the viscosity of the liquid composition. Also disclosed is equipment for use in the aforesaid method.

Abstract: A discharge apparatus for discharging materials from a container onto a field, the apparatus comprising a power discharge device disposed adjacent to a discharge outlet defined by the container, the arrangement being such that when the apparatus is being used to spread the materials onto the field, the materials move from the container through the outlet towards the discharge device. A motor is drivingly connected to the discharge device for rotating the discharge device. A power sensor senses the power used by the motor and a control controls the rate at which the materials are spread. A data storage device associated with the power sensor and the control regulates the control. The arrangement is such that the data storage device dependent on the power sensor regulates the control for controlling the rate at which the materials are discharged so that when the container is moved across the field, the materials are discharged onto the field at a varying rate in order to optimize usage of the materials.

Abstract: Apparatus and method for depositing salt granular materials upon a highway pavement at practical speeds. The deposition forms two narrow bands of the salt through utilization of two impeller-based mechanisms which are canted downwardly at an acute angle toward the pavement. The dump bed of trucks utilizing the apparatus is maintained in a down orientation through the utilization of a salt transport mechanism implemented as dual augers extending the length of the truck bed. Two embodiments of the apparatus are described each being self-contained and mountable upon a truck bed with relative ease. In one embodiment, a brine formation tank of generally triangular cross-sectional configuration is combined with a brine holding tank to form the sides of a V-box hopper structure. The brine formation tank is charged with salt and water to form a saturated brine which is permitted to migrate through a baffling system to the brine holding tank.

Abstract: A spreader having a main frame, and a tank mounted on the main frame for receiving manure or other fertilizer material. At least one auger is rotatably mounted in the tank for conveying material received in the tank to a discharge area where an opening is provided in the tank. A distribution assembly, also mounted on the main frame, receives material conveyed to the discharge area and expels it from the tank as it is transported over a field. Included in the distribution assembly is an expeller comprising first and second side-by-side rotary slingers mounted in the opening for receiving material conveyed to the discharge area and expelling it outwardly in a generally even distribution pattern.

Abstract: A motorized spreader for dispersing granular and other material, such as fertilizer, seed, and salt, or the like, provides improved uniform control of the flow of the material from the spreader. The motorized spreader includes a frame and drive train supporting the frame. A hopper for holding granular material is also supported on the frame and includes a dispensing opening for directing the flow of granular material from the hopper onto the ground. An agitator is positioned in the hopper for urging the granular material in the hopper toward the dispensing opening so that the flow of the granular material from the hopper is controlled. The drive train includes first and second wheels, with each wheel including an axle. A differential drivingly couples the axles of the wheels together and includes a first drive sprocket and a second drive sprocket, the first drive sprocket coupling to a motor to drive the motorized spreader at a ground speed.

Abstract: A material spreader which is adapted to be towed behind a tractor includes a chassis mounted on at least one pair of wheels positioned toward its rear. A box for transporting and dispensing materials is pivotable from a horizontal position to a substantially vertical position and is provided with a rotatably driven beater mounted to its rear. The interior of the box is devoid of any material moving mechanism except for the beater. A vertical support member extends upwardly from each side of the chassis adjacent to the pair of wheels. Each vertical support member is provided with a pivot point adjacent to its upper end for pivotally supporting the box at an elevated location above the rear axle. The box is pivotally supported at a location spaced forwardly from its rear a distance at least equal to the height of the box. The beater and a hydraulic cylinder for raising the box is adapted to be coupled to the hydraulic system of a towing tractor.

Abstract: An improved feed distribution and closure mechanism for use with broadcast spreaders for spreading granular or powdery material or both is described. The mechanism comprises a threaded shaft, a disk mounted on the shaft having a central opening provided with internal threads mating with the shaft, a return spring, and a collar or the like on the shaft to stop travel of the disk on the shaft. Materials which may be spread using spreaders equipped with the mechanism include, without limitation, sand and/or salt on roads; materials such as herbicides, pesticides, fertilizer, lime and seeds such as grass seed on fields, lawns, golf courses and the like; and most particularly, feed for both domesticated and game animals and birds.

Abstract: A rotation driving system drives unitedly and rotatably sprinkle rotors, which the disk sprinkle rotors having plural partitive members extending in predetermined distances in a radial direction to the rotating axis are arranged in multistage state with a predetermined distance in a longitudinal direction. In the aforementioned state, by supplying the catalyst to the center of the sprinkle rotor, the catalyst is fed into a reaction tank while releasing in a radial direction of the sprinkle rotor. When the catalyst is fed, a rotation frequency of the sprinkle rotor is defined to be a speed constituent in a radial direction of over zero when the catalyst settles down and to be periodically changed between a maximum rotation frequency and a minimum rotation frequency.

Abstract: A lawn spreader composed of a cylindrical drum mounted to a user-operable handle assembly. Along the surface of a drum are a plurality of spaced-apart spike arrays with a plurality of aperture arrays interposed therebetween. A door at one end of the drum allows for deposit of granular materials, such as grass seed, within the drum. A paddle array within the drum is rotatable therein so as to open or close selected apertures of the aperture arrays. Upon drum rotation, as urged by the user on the handle assembly, the spikes first indent the earth with the grass seed then falling through the open apertures and into and between the resulting indentations in the earthen surface therebetween. The smooth surface of the drum then tamps the deposited seeds into the earthen surface. The spikes are preferably releasably attached to the cylindrical drum so that various types of spikes can be used.

Abstract: A method and apparatus for spreading material including a container for the material to be spread; the container includes an open top for receiving the material, a front wall, a rear wall, a left side wall, a right side wall, and a bottom; apparatus adjacent the container bottom for moving the material along the container bottom in a direction from the front wall toward the rear wall; openings provided in the left and right side walls adjacent the container bottom and the rear wall for permitting the material to be discharged from the container; an auger adjacent the container bottom and rear wall for moving the material toward the openings; a first material spreader located outside of the container adjacent to the left side wall for receiving material discharged from the opening in the left side wall; a second material spreader located outside of the container adjacent the right side wall for receiving material discharged from the opening in the right side wall; and apparatus for rotating the first and secon

Abstract: The invention relates to a spreading apparatus comprising a container for spreadable granular material which is provided with an outlet which is closable with a controllable metering valve and which connects to spreader members, a reservoir for liquid wetting agent whereof an outlet provided with a pump is connected via a feed conduit for wetting agent to the spreader members, wherein the feed conduit forms a siphon which extends above the filling level of the reservoir for liquid wetting agent and is provided with venting means and connects via an open feed conduit end to the spreader members, and to a distribution chamber therefor.

Abstract: A spreader is attachable to a conventional lawn mower to spread granular material over the area cut by the mower. The spreader has a hopper, at least one adjustable orifice at the bottom of the hopper, and a rotating regulator for dispensing granular material behind the lawn mower. In one embodiment, a first sprocket attached to the wheel of the lawn mower, and a second sprocket attached to the spreader receive a chain for driving the rotating regulator of the spreader. In a second embodiment, the spreader is driven by a pair of bevel gears, one of which is mounted on the rear axle of the mower. A novel drive does not convey rotational movement to the impeller of the spreader when the mower is moved a short distance backwards. Also, the lever operating the clutch to engage power to the Pear wheels simultaneously operates a stop to block the flow of particulate matter out of the hopper of the fertilizer spreader.

Abstract: A flexible hopper made of rubber or other suitable flexible material which is driven by a motor through an eccentric drive so as to cause the hopper and a drive auger to vibrate to more readily dispense product in the hopper. One or more flexible fingers are attached to the auger and are flexed as the auger rotates so as to further improve the flow characteristics of the materials in the hopper.

Abstract: A spreader to be mounted on a vehicle. The spreader has a main container to hold a particulate material and an outlet for a particulate material. The particulate material can be dispersed from the outlet and there is an electric motor adjacent the main body to drive the particulate material from the body. This electric motor has a drive shaft that extends to an outlet. There is a feeder, for example a screw conveyor, on the drive shaft to force the particulate material from the outlet when the shaft rotates. The spreader includes seals to prevent leaking of the particulate material from the body when the shaft is not rotating and also has the ability to warn when the level of particulate material in the main body is too low.

Abstract: Apparatus and method is described for depositing salt-based materials upon highway pavements at practical speeds in a manner significantly reducing scatter. This is achieved through the expression of the materials from an impeller at a lower level of the vehicle at a material velocity commensurate with the speed of the vehicle itself. Projection of the material is in a direction or vector directly opposite that of the forward direction of the vehicle. Implementation of the method is provided with a rotating impeller having sidewalls defined by an endless belt which partially surrounds it. That portion of the impeller which is not surrounded by the endless belt forms an outlet opening from which the material is propelled. Introduction of the material to the impeller is at its center portion and is directed to those peripheral regions of the impeller which extend from a location adjacent the outlet opening and thence about a predetermined arcuate region of the rotating impeller.

Abstract: A granular and liquid material spreading system mounted on a vehicle. Granular material is moved from a hopper to a delivery system using hydraulic pumps and motors. The hydraulic system also drives a liquid delivery system. A control system including a material computer is provided to control the amount of granular material and liquid material applied to a surface. The feed rate of liquid delivery is controlled electronically by programming the material computer as a function of the feed rate of the granular material. The liquid feed rate may be changed within a predetermined range. The level of liquid may be sensed to disengaged the liquid delivery system. Initiation of liquid delivery reduces the feed rate of granular material by a variably selected percentage.

Abstract: A granular and liquid material spreading system mounted on a vehicle. Granular material is moved from a hopper to a delivery means using hydraulic pumps and motors. The hydraulic system also drives a liquid delivery system. A control system is provided to control the amount of granular material and liquid material applied to a surface. The feed rate of liquid delivery is dependent upon the feed rate of the granular material. The liquid feed rate may be changed within a predetermined range. The level of liquid may be sensed to disengage the liquid delivery system. Initiation of liquid delivery reduces the feed rate of granular material by a variably selected percentage.

Abstract: A granular and liquid material spreading system mounted on a vehicle is disclosed. Granular material is moved from a hopper to delivery means by a hydraulic system. The hydraulic system for a granular material delivery system is selectively used by a liquid delivery system to operate a liquid pump to move the liquid material to the delivery position. The amount of liquid delivered is dependent upon the feed rate of the granular material delivery system. Variation of the liquid feed rate may be changed within a predetermined range. The level of liquid may be sensed to disengage the liquid delivery system. In one embodiment, the hydraulic system fluid is diverted to power the liquid delivery system, slowing the feed rate of the granular delivery system and the amount of granular material used. In another embodiment the hydraulic system is used to control the liquid feed rate.

Abstract: A hydraulic system is provided including a hydraulic pump which is continuously coupled with the engine of a utility such as a dump truck utilized for snow-ice removal. When hydraulic implements employed on the truck are not actuated, the pump operates in a cavitation mode. During this cavitation mode of operation, there is no ingress of air through seals or the like to a venting of the gear pump chamber essentially to tank or atmosphere. A poppet valve is actuated in conjunction with periodic use of hydraulic elements on the truck to actuate the pump to an operational or pressurized mode. A key actuated calibrating system is employed to calibrate snow-ice removal components in a secure manner. Calibration is provided in conjunction with EEPROM memory.