Abstract: The present disclosure concerns a fluid dispersion system such as for use in a personal shower. Groups of nozzles on a single showerhead are separately activated and regulated by corresponding valves. Each valve is controlled from a remote panel to provide an appropriate flow of water. A position detection system determines the relative position of a body with respect to the showerhead. The remote panel receives data from the position detection system and adjusts the valves to ensure the user remains in a desired flow of water.

Abstract: Disclosed herein is a vehicle windshield washing installation comprising a vehicle having a storage location. A retail jug has an opening, carries windshield washing fluid and is positioned in the storage location. A pump unit pumps the fluid from the jug and includes an inlet channel which is dimensioned to extend into the opening to be in fluid communication with the fluid. A cover is removably attached to the opening. The pump unit further includes an outlet fluid channel for delivering the fluid to at least one predetermined windshield location on the vehicle.

Abstract: A low pressure spraying assembly for mixing and initiating the reaction of a first liquid reactive polymeric material, such as an isocyanate terminated compound, with a second liquid reactive polymeric material, such as an hydroxyl terminated compound or polyol resin, to form a two part polymer, such as polyurethane, and spraying the polymer onto a surface. The spraying assembly includes a material circulating system and a spray gun assembly. The material circulating system comprises separate multiple diaphragm pumps, drive assemblies, flow meters and feedback controllers for each material. The spray gun assembly includes a manifold with a pair of fluid ports for receiving the first and second polymeric materials. A mixing device is mounted to the manifold for mixing the materials to form the two part polymer. A spray tip with an air cap is mounted to the distal end of the mixing device for spraying the polymeric material.

Abstract: A plurality of piezoelectric sensors are disposed in a spatial array around the ports of an injection nozzle. Separate electrical signals proportional to the instantaneous momentum of fluid discharged from the injection nozzle and impacting on each of the sensors are used to calculate the instantaneous momentum and mass flow rate of fluid impacting each of the sensors.

Abstract: A method and apparatus for an air abrasive unit such as those used in the dental field. This method and apparatus utilizes an internal vibrator motor with vibration transmitters which transmit the vibrations throughout the abrasive jar. The abrasive pickup assembly uses pressure differentials to suck up abrasive through a screen which controls the flow rate and particle size of the abrasive flowing through the system. This system can utilize a photo optical detection system to detect the abrasive level. Alternatively, a pressure/pulse detection system may be used to measure abrasive level. Dilution of the air/abrasive mixture and "air only" modes are possible with the present system. Depressurization and mere reductions of pressure can also be accommodated.

Abstract: A flow sensing fuel injector nozzle includes first and second spaced silicon layers containing flow restricting and distributing orifices and openings for atomizing fuel. The layers are support by a silicon or metal base and spaced by an epitaxial silicon layer to form a nozzle member. Various electrical conductors and elements formed in the silicon layers and connected with external indicators are operative to indicate the presence and/or the amount of fuel flowing through the injector.

Abstract: A sprinkler unit having a system of nozzles for a wide range of conditions, comprises a housing having an inlet for connecting to a source of water, an outlet, a passage connecting the inlet to the outlet, the outlet having a nozzle receiving socket, a nozzle for detachably mounting in the outlet, a latching device in the socket for latching engagement with the nozzle for retaining the nozzle in the socket.

Abstract: A system delivers a number of safe doses from a pressurized and metered medication canister via a dispenser to a patient. The improvement includes a counter device for accurately determining the number of safe doses delivered from the medication canister. Also, a warning device alerts the patient either visually, audibly, mechanically or in a combination thereof about an impending and then a final exhaustion of the number of safe doses delivered from the medication canister. The improved system takes advantage of the patient-actuated movement of the medication canister in the dispenser body to activate either an electronic or a mechanical counter device. Alternatively, the improved system may be patient-activated independently from, but in conjunction with, the dispensing of medication from the canister.

Abstract: Disclosed is an apparatus having a plurality of interfaces, each corresponding to one of a plurality of MFCs which provide voltage signals corresponding to the control voltages controlling the MFCs; a plurality of wires for transmitting the voltage signals from the interfaces; a position switch coupled to the plurality of wires for selecting voltage signals corresponding to one of the MFCs; and a plurality of displays coupled to the switch for providing a visual display of the values of said voltage signals corresponding to one of the MFCs. The invention enables an operator to monitor/calibrate a plurality of MFC operating voltages simultaneously without interfering with other operations of a system using MFCs.

Abstract: A faucet or shower head includes a transparent zone on the casing thereof through which the color and quality of the water may be visually checked. A temperature display chip is mounted within the transparent zone and is covered with a transparent protective covering. The temperature display chip detects and displays the temperature of the water passing through the faucet or shower head. If the water temperature exceeds a predetermined value, a temperature controlled integrated circuit (IC) is activated to automatically give an audio alarm. This alarm helps prevent users from being scalded with excessively hot water.

Abstract: An improved sprinkler nozzle comprises a nozzle body having a nozzle received in a recessed seat provided in a peripheral wall of the nozzle body. The nozzle is formed with a plurality of nozzle ports formed by the radially outer ends of a plurality of vertically flexible nozzle tubes. The flow volume of the water stream being thrown by the sprinkler nozzle is adjusted by selectively operating a flow volume adjustment member carried on the nozzle body to selectively open or close various of the nozzle tubes in various possible combinations. The flow volume of the nozzle will comprise the combined or aggregate flow volumes of the water sub-streams being thrown by those nozzle tubes that are left open. The trajectory of the water stream being thrown by the sprinkler nozzle is adjusted by selectively operating a trajectory adjustment member carried on the nozzle body to bend the flexible nozzle tubes about their vertically fixed, radial inner ends to raise and lower the radial outer ends of the nozzle tubes.

Abstract: A portable watering device includes a reservoir having an upper inlet and a lower outlet, a portable delivery wand having a top handle, a bottom channel, and a shiftable channel closure mechanism biased in the closed position. The top handle includes a trigger remotely coupled with the closure mechanism for activating the closure mechanism. A flexible hose intercouples the reservoir outlet and the wand channel and serves to convey liquid from the tank and out through the wand channel by gravity when the closure mechanism is in the open position. A pair of wheels is mounted to the bottom portion of the reservoir to permit easy rolling movement of the device over uneven terrain. In particularly preferred forms, the reservoir includes a laterally extending handle for supporting the device in a horizontal loading position while the reservoir is filled through the upper inlet.

Abstract: A sprinkler system for distributing water from a source substantially evenly over an area of terrain comprises a body defining a passage having an inlet connected to an outlet extending at an angle to the inlet, and at least one nozzle detachably mounted in the outlet and having an indicator tab visible from above for indicating at least one of the arc, spacing and precipitation rate.

Abstract: A drift control enclosure for an agricultural sprayer comprising a plurality of elongated flexible filaments which extend downwardly from the spray bar of the sprayer towards the ground in an enclosure fashion so as to enclose the spray nozzles and the spray pattern thereof to prevent spray drift. The flexible filaments can separate to permit an obstruction to pass therethrough and can deflect to permit an obstruction to pass thereunder.

Abstract: An apparatus for monitoring and spraying a catalyst with a resin onto a surface. A pressure gauge is attached to the manifold of a spray gun to monitor the pressure of catalyst within the manifold. The pressure gauge warns of and diagnoses problems with the apparatus ranging from a damaged pump to a plug in the manifold.

Abstract: An apparatus for mixing and spraying a catalyst with a resin onto a surface. The apparatus is provided with a restricted orifice union on the resin line running into the manifold. The union traps large plugs of resin and prevents them from entering and clogging the manifold. The union is designed so that plugs of resin may be easily removed from the resin line with only a minimum of down time.

Abstract: The invention comprises a liquid storage container having a plant feeder outlet and a fluid transmission outlet arranged to accept a tube, the distance it inserts into the fluid transmission outlet determining the volume of fluid which is allowed to flow from the plant feeder outlet. The invention includes a system of remote plant feeder members connected through said tube and allowing delivery of controlled volumes of fluid to one or more plants.

Abstract: Highly reliable measurements of the fluid and/or fluid flow in a conduit are obtained by insertion within the conduit, upstream of a fluid measuring or sampling device, of a fluid flow straigntening and displacement apparatus which serves to stabilize, homogenize and condition the fluid flow and form at the device a uniform, axially centered, axially symmetrical, well defined and accurately measurable flow profile of large means flow diameter. The flow straightening and fluid displacement apparatus comprises, in sequence in the direction of fluid flow, a first swirl mitigating and flow straightening device, a fluid displacement member comprised of two oppositely facing frustums jointed at their larger ends and mounted coaxially within the conduit, and a second flow straightening device. Advantageous combinations of the flow straightening and fluid displacement apparatus with known measuring and sampling devices are provided.

Abstract: A valve metering system for spraying agricultural chemicals to the soil from a driver-operated moving vehicle through nozzles substantially independent of pump pressure. The system has a valve which is driver presetable prior to spraying. The valve is driver adjustable while the vehicle is moving for increasing or decreasing nozzle flow. Indicating means readable by the driver from the moving vehicle during spraying indicates spray rate through the nozzles as a percentage of pump flow.

Abstract: An apparatus and method for measuring paint usage in a painting system of the type having a reservoir (12) connected to an atomizer (14) by a supply line (16) and return line (18). A feed flowmeter (24) is disposed in the atomizer feed line (16) and a return flowmeter (26) is disposed in the atomizer return line (18) for measuring the respective volumes of paint flow through the atomizer feed line (16) and return line (18). A processor (28) provides the difference between the volume of paint flow through the atomizer feed and return lines (16,18) as measured by the feed and return flowmeters (24,26), respectively, to determine the volume of paint discharged through the atomizer (14).

Abstract: A system for hermetically dispensing and diluting a concentrated chemical from a container into a dilution tank which includes (i) a first portion for attachment to the container which includes a valve for controlling fluid flow from the container through the first portion, (ii) a second portion for attachment to a source of pressurized water and a measuring receptacle which includes a valve for controlling fluid flow from the source of pressurized water through the second portion and a valve for controlling fluid flow through the second portion into the receptacle, (iii) a coupler for attaching the first and second portions so as to provide fluid flow from the container to the measuring receptacle, and (iv) a valve over an outlet orifice in the receptacle for controllably releasing the contents of the receptacle into a dilution tank.

Abstract: A spray gun pressurized air control system includes an air adjusting knob, a trigger, a trigger seat within a housing, and a control ring. The air adjusting knob comprises a knob at one end having indicia marked thereon, and a hollow shank at the other end to receive a spring therein. An inner end of the spring engages with one end of an enlarged portion of a pin. The other end of the enlarged portion engages with the bottom portion of an L-shaped plate extending downward from one end of the trigger. By adjusting the knob to a predetermined position, pressurized air may be released from a valve controlled by the trigger.

Abstract: An emitter has a plurality of circumferentially disposed fittings releasably connected thereon. A pressure-compensated flow control valve is mounted in at least some of the fittings and the control valves have varied flow rates. A plug is inserted into outlets from the emitter not having a fitting/control valve mounted therein. The emitter is adapted to replace a standard sprinkler head of a sprinkler circuit to provide the circuit with both sprinkler and micro-irrigation capabilities.

Abstract: An irrigation control device, comprising a primary water supply tube for operable connection to a pressurized water source, a plurality of water manifold pipes extending horizontally from the supply tube having formed along the tops thereof a plurality of apertures, a manifold seat for water-tight connection with each of the apertures and including an upwardly opening receptacle in flow communication with the supply tube, a plurality of rotameters arranged upright for receipt in the receptacles, each rotameter including a base through which is formed a passageway for receipt of a flow of water, a transparent water tube extending upright therefrom having formed therethrough a vertical passageway and a weighted element therein positionally responsive to the flow of water therethrough, and an outlet nozzle located above the valve for connection to a water line to convey the controlled flow of water to areas requiring irrigation and, a cabinet for housing the manifold pipes and the rotameters, including an access

Abstract: A process and apparatus are provided for injecting dry lightweight particulate material into a stream of catalyzed resin. The dry lightweight particulate material is stored in a fluidizing tank. The fluidized dry particles are conveyed from the tank under a controlled vacuum created by a low pressure venturi pump. An anti-static conveying tube delivers the dry lightweight particulate material to an adjustable delivery tube which terminates with a nozzle. The nozzle delivers a low velocity controlled spray pattern which coincides with the stream of pressurized resin. The nozzle is positioned at an acute angle relative to the longitudinal axis of the resin stream and injects the dry lightweight particulate material into the stream. Within the venturi pump and opposite to the main low pressure, low volume inlet, is a second pressurized inlet. This inlet directly controls the degree of vacuum, thereby precisely determining the amount of dry lightweight particles delivered to the resin stream.

Abstract: Fluid delivery equipment, for example for distributing herbicide, is calibrated to provide a correct flow rate by performing a test cycle in which the fluid flows into a measuring device for a predetermined time, after which the volume of fluid in the measuring device is established to determine whether or not the flow rate corresponds to the desired flow rate. The measuring device establishes a flow path having two reverse bends (36, 30) with the reverse bend (36) bypassed by a vent hole (32). The level of liquid in the measuring device after a test is, for example, established by means of a graduated scale provided on a card (40) which is removably attached to a package containing the fluid to be distributed.

Abstract: An apparatus for measuring nonvolatile residue concentrations in liquid is disclosed. A plurality of fixed and adjustable flow restrictive elements are utilized and arranged in-line from a fluid supply source to provide a constant, pressure controlled flow of liquid to the measuring apparatus and allow for real-time measurements and optimal concentration detection. An atomizer atomizes the liquid into droplets which are dried to nonvolatile residue particles. The nonvolatile residue particle concentration is then determined utilizing an electrostatic aerosol detector. The invention further discloses apparatus for collecting a sample of nonvolatile residue for analysis and identification using a corona precipitator.

Abstract: Apparatus for use in spray-up construction of a fiberglass article in an open mold includes a manually operable spray gun for spraying liquid resin and liquid catalyst, and for chopping and emitting fiberglass roving together with the resin. A positive displacement resin and catalyst pump operated by an airmotor pumps resin and catalyst to the spray gun. A pneumatic electrical switch on the air-motor monitors air exhaust therefrom and is closed upon each air-exhaust pulse. The number of air-exhaust pulses of the air-motor is proportional to the cumulative amount of resin pumped. An electronic counter electrically connected to the pneumatic switch counts the number of switch closings and drives an LCD numerical display which displays the number of pulses counted. The LCD display is located on the spray gun where it can be seen by the operator during operation of the spray gun, such that the operator is continually apprised of the amount of resin which has been dispensed.

Abstract: A system for hermetically dispensing and diluting a concentrated chemical from a container into a dilution tank which includes (i) a first portion for attachment to the container which includes a valve for controlling fluid flow from the container through the first portion, (ii) a second portion for attachment to a source of pressurized water and a measuring receptacle which includes a valve for controlling fluid flow from the source of pressurized water through the second portion and a valve for controlling fluid flow through the second portion into the receptacle, (iii) a coupler for attaching the first and second portions so as to provide fluid flow from the container to the measuring receptacle, and (iv) a valve over an outlet orifice in the receptacle for controllably releasing the contents of the receptacle into a dilution tank.

Abstract: An apparatus and controlling circuitry for periodically operating an aerosol container in discrete dispensing intervals to disperse a discrete quantity of the contents thereof. The apparatus includes a powered mechanism for actuating the aerosol, with the circuitry controlling the powered mechanism for a predetermined number of actuations. An energizing means activates a warning mechanism when the actuation count reaches the predetermined number to thereby indicate the probable total evacuation of the aerosol container and the necessity for termination of the operation. The apparatus also includes means for setting the circuitry into a plurality of different operating modes, including a continuous intermittent operation, a controlled daytime operation, and a controlled night operation. The apparatus may be battery operated, and it then includes a second warning mechanism for indicating whether the battery power is sufficient to operate the powered mechanism.

Abstract: In a wheel-mounted sprayer for depositing liquid agricultural chemicals from storage tanks through feeder conduits and multiple spaced-apart spray heads or nozzles onto the ground, a liquid flow detector flow system includes a primary feeder tube forming a part of each feeder conduit, a secondary feeder tube having a larger diameter than the primary feeder tube and being open to the primary feeder tube and to the upper end of a spray nozzle, the feeder conduit being formed into an upwardly extending loop with the primary feeder tube being connected to the secondary feed toward the top of the loop. A pair of adjacent flow detector electrodes extend through an upper portion of the secondary feeder tube near the top of the loop on the downward flow side, and electrical means detects the presence or absence of electron flow between each pair of electrodes.

Abstract: A method of detecting spray header valve and nozzle malfunctions, in a spray header including plural nozzles each having its own control valve, by supplying the spray header with liquid at a constant pressure head through a conduit while opening and closing the nozzle valves one at a time, and measuring the flow rate through the conduit each time one of the valves is open and when all the valves are closed. In response to detection of a malfunction at a particular nozzle, the valves of one or more adjacent nozzles are adjusted so that the adjacent-nozzle flow rates compensate for the malfunction, for example to maintain a desired cooling pattern across a surface being cooled by the spray header notwithstanding the malfunction at the particular nozzle.

Abstract: A moistening arrangement for moistening a flap of an envelope has a nozzle directed to spray a liquid at the envelope flap along a given locus in the plane in response to signals that are a function of the width of the flap for moistening the flap at determined positions thereof. A sensor is positioned to detect the presence of liquid emitted from the nozzle. A control arrangement controls application of liquid to the nozzle while an envelope is adjacent thereto, and liquid is momentarily directed to the nozzle prior to movement of an envelope adjacent to the nozzle for providing an indication of operability of the nozzle and liquid applying arrangement.

Abstract: A liquid such as a herbicide is delivered from spray nozzles (4) on a boom (2). The herbicide is supplied from a herbicide container (8) by a pump (18), and is diluted with water supplied from a tank (10) by a pump (12). The speed of the herbicide pump (18) is controlled by control means (22) and is responsive to the travel speed of the apparatus. The volumetric output of the pump (18) is calibrated by supplying the herbicide to a calibration vessel (32) during a test cycle in which the apparatus travels over a predetermined distance. Correction factors can then be input to the control means (22) in order to bring the volumetric output of the pump (18) into line with desired flow rates.

Abstract: A sprinkler head having a readily accessible top plug which can be removed and replaced by a pressure-reading gauge that is in fluid communication with the head's interior pressure. Each individual sprinkler head includes a manually-adjustable pressure adjusting screw which is accessible at an exposed location for the installed sprinkler head. Pressure adjustment for an individual head, while it is operating in either a manual or an automatic mode, is available. After individual pressure adjustment for a sprinkler head has been performed the gauge is removed and the plug is replaced for normal sprinkler operation.

Abstract: Spraying equipment, for example for herbicides, comprises a head for carrying a rotatable disc from which, in operation, fluid is delivered by centrifugal force. The head comprises a first cmponent (4) and a second component (2) which are relatively rotatable about axis (A). The first component (4) has an inlet aperture (33) and the second component (2) has an outlet aperture (40). The second component (2) also has a recess (44) which provides a passage connecting the inlet aperture (33) to the outlet aperture (40). Relative rotation of the components (2 and 4) varies the length and/or the flow cross-section of the passage, so as to regulate the flow of fluid to the rotatable disc.

Abstract: A shower dispensing head is set forth wherein the first of a pair of aligned containers is formed with a mechanical two-way valve. A flow of water is directed past an orifice positioned within the water flow conduit of the shower head to selectively enable a bath oil to be emulsified and mixed with the outlet water wherein a second underlying container is provided with a two-way valve to enable pressurization of a container associated therewith to enable dispensing of soap therefrom. An associated indicator of the second container provides at-a-glance indication of the content level of the second container.

Abstract: An artificial fog generator device is provided with air jet pipes, an oil bath, filtering screens, and an enclosing housing to include all of these elements, and outlet channels for directing the generated cloud of oil bubbles from the housing, and an air compressor that feeds high pressure air into the spraying pipes. A much more efficient generator of fine oil bubbles is achieved by locating the air jet pipes directly above the surface of the oil bath. The compressed air is fed into the pipes that are located directly above the oil bath and high pressure air jets spraying into the oil bath cause a cloud of fine oil bubbles to fly out of the oil bath. The generated oil bubbles than pass through the filtering screens and are then directed out of the housing through the outlet channels. The fog or smoke generator housing may be portable, and have a carrying handle, and may contain the air compressor, and a power supply and battery to power the air compressor.

Abstract: An apparatus and method for manufacturing plural component materials, especially rigid urethane structures, from reactive components. The system includes a source of a first component, a source of a second component, a sprayer for mixing the components and for dispensing the mixture therefrom, and a delivery system for delivering the components to the sprayer. The delivery system is designed to continuously recirculate the components from their respective sources to the sprayer and back to the sources and includes positive displacement piston pumps simultaneously driven by a single motor. The system further includes means for calibrating the rates of flow of the components in the delivery system and a chopper to direct reinforcing glass fibers into the component mixture dispensed from the sprayer.

Abstract: This invention relates to an improved method and apparatus for application of agrochemicals from a moving vehicle. It utilizes a multiple chemical infusion system for mobile spraying of liquid mixtures at present, controlled, and monitored application rates which integrate ground speed, solute concentration, diluent volume and spray swath path width using dynamic, real time software in a digital computer unit with a read only memory chip. Microprocessor controlled peristalic squeeze pumps, capable of simultaneous or independent application of a plurality of chemicals, infuse chemicals to be applied into solvent water where the mixture is delivered to a boomless spray assembly by a centrifugal pump or application. The microprocessor is controlled by the operator of the moving vehicle.

Abstract: A method and an apparatus for the spraying onto a field of a liquid such as a herbicide solution by means of a spraying apparatus, propellable over the field, with a series of spraying members (3) fed by a common liquid pressure pump (6) wherein a carrier fluid is supplied to the spraying members (3) by means of the pump and the active substance in the stream of carrier fluid is added by means of a second regulatable pump (12), wherein the volume of carrier fluid provided to the spraying means (3) is controlled dependantly on the quantity of active substance by a regulating system (5) controlling one of the two fluid flows, in order to keep the concentration of active substance in the carrier fluid constant irrespective of the travel velocity, ensuring that although the quantity of the active substance is regulated dependantly on the travel velocity, the concentration is independant thereof, resulting in a homogeneous spreading of the active substance over the full width of the strip of land to be sprayed.

Abstract: A method of, and system for, spraying is provided in which voltages generated by the passage of pressurized medium through a spray nozzle is monitored. The generated voltage has characteristic patterns. Monitoring the variations in these patterns or the exceeding of predetermined voltage limits enable close control to be monitored over the spraying operation and for remedial action to be taken in due time.

Abstract: Spraying equipment, for example for herbicides, having a head for carrying a rotatable disc from which, in operation, fluid is delivered by centrifugal force. The head has a first component (4) and a second component (2) which are relatively rotatable about an axis (A). The first component (4) has an inlet aperture (33) and the second component (2) has an outlet aperture (40). The second component (2) also has a recess (44) which provides a passage connecting the inlet aperture (33) to the outlet aperture (4) along a conical element (32) and splines (28). Relative rotation of the components (2 and 4) varies the length and/or flow cross-section of the passage, so as to regulate the flow of fluid to the rotatable disc.

Abstract: A liquid distributing apparatus, particularly for incorporation in lids or covers of 3 to 5 gallon containers, has a four-way input valve for delivering water under pressure to wash hands, clean materials, etc., fill the tank on which the lid is placed and to drive rotor shafted to a spur gear which drives an agitator for keeping the concentrate in the tank stirred-up, with a manual input for initially stirring-up or agitating the concentrate. An indicator is provided on the manual drive to show that the agitator (and hence the rotor) is operating. An aspirator or jet pump receives the liquid or water downstream of the rotor and the input aspirator or vacuum line from the concentrate or tank passes through a ball check valve which has an indicator coupled thereto for indicating the flow of concentrate from the tank to the jet pump to be mixed with the water. A valve with predetermined controls the degree or ratio of concentrate.

Abstract: Mechanism for discharging granular material, especially seed and fertilizer, and having a bin and seed-flow regulators that variable amounts of material can be supplied to the ground through, whereby a sensor that detects the amount of material or number of grains of material discharged through that device is positioned in the vicinity of at least one flow regulator. To improve the sensor's detection of the amount or number of grains of material, a flow accelerator (8) accelerates the grains (22) of material toward the sensor (15) between the flow regulator and the sensor (FIG. 1).

Abstract: A sight gauge for a towed sprayer having a channel formed in a shroud, which is inclined more from the vertical in its upper portion, with a plastic tube mounted in the channel. A visual indicator is trapped within the tube to indicate liquid level in the sprayer tank.

Abstract: The invention provides a modular fire fighting apparatus which may be quickly and easily mounted onto an ordinary pickup truck, and conveniently operated by the vehicle driver from the cab of the vehicle. The module generally includes a pump coupled to an engine for pumping a fire-retardant liquid, a control means for regulating the amount of liquid pumped, and a reservoir tank fluidly connected to the pump. The frame of the apparatus both unitizes the pump, engine and tank, and positions the engine and pump controls within the reach of the operator when the operator is in the cab of the vehicle. The invention further includes a tank level indicator including a transparent conduit and an elongated float engaged onto a guide rod in the tank for providing a visual display of the tank level which is positioned so that it may be observed through the rear-view mirror of the truck.

Abstract: The invention relates to a high-pressure liquid installation with a pressurized water generator (10) to which a spraying device (42) is connected, while an adjustable pressure-limiting valve (14) is arranged between the pressurized water generator (10) and the spraying device (42). The pressure-limiting valve (14) is adjustable in its pressure by remote operation by electrical signals which can be generated by electrical control elements (56, 58), while a delay device (40) may be provided for surge-free pressure adjustment.

Abstract: A container having attached to it at least one memory device carrying information relating to the intended contents of the container; the device being operably connectable to apparatus responsive to information communicated from the memory device whereby an operation actively involving the contents of the container may be performed in a manner at least partly determined by the characteristics of the contents.

Abstract: An apparatus and controlling circuitry for periodically operating an aerosol container in discrete dispensing intervals to disperse a discrete quantity of the contents thereof. The apparatus includes a powered mechanism for actuating the aerosol, with the circuitry controlling the powered mechanism for a predetermined number of actuations. An energizing means activates a warning mechanism when the actuation count reaches the predetermined number to thereby indicate the probable total evacuation of the aerosol container and the necessity for termination of the operation. The apparatus also includes means for setting the circuitry into a plurality of different operating modes, including a continuous intermittent operation, a controlled daytime operation, and a controlled night operation. The apparatus may be battery operated, and it then includes a second warning mechanism for indicating whether the battery power is sufficient to operate the powered mechanism.