Abstract: A dispensing system includes a container containing a flowable base formulation to be dispensed, an additive mixing device, and an actuable pump engine which draws the flowable base formulation from the container and pumps it through the mixing device. The additive mixing device includes a body with an internal cavity, an additive ingredient within the cavity, and a flow path/mixing chamber between an input and an output. With each pump of the device the additive ingredient is introduced into, and mixed with, a flow of the base formulation traveling through the mixing device. Multiple additive mixing devices may be interchangeable for different formulations, and the mixing devices may be refillable.

Abstract: A raising device for a handle of electric paint gun, including a handle, a motor hood, a gun barrel, a nozzle, and a container in many kinds of specifications. An upper side of the handle is connected with the horizontal gun barrel as well as the motor hood. An outer end of the gun barrel is the nozzle, a lower side of the nozzle is a push switch, and the container is connected on a lower end in front of the gun barrel, with a guide tube extending into the container. A bottom end of the handle is a raising device which increases or keeps the length of the original handle to adapt the assembly of a container in all kinds of specifications. Therefore, the electric paint gun can be emplaced stably, and one electric paint gun can be applied to the container in many specifications.

Abstract: A power tool includes a housing, a motor supported within the housing, a handle extending from the housing, a trigger, a spindle, and a fluid delivery system. The handle defines a gap between the handle and the housing, and the trigger, coupled to the housing, is manipulable to energize the motor. The spindle is configured to rotate about a rotation axis in response to torque received from the motor, and the fluid delivery system is configured to supply fluid to the spindle. The fluid delivery system includes a valve operable to regulate a flow of fluid to the spindle, and the valve includes an actuator disposed within the gap.

Abstract: A dust suppression assembly is to be fixed on a handheld device. The dust suppression assembly comprises a device interface member having a top end and a bottom end and an intermediate member having a first intermediate end and a second intermediate end, the first intermediate end adapted to be coupled with the bottom end of the device interface member. Further, the device interface member is having a first channel and the intermediate member is having a second channel, the first channel and second channel joins to form a passage for supplying water to the working end of the tool for suppression of dust, while the handheld device is in use.

Abstract: A portable and reusable liquid spray apparatus, the spray apparatus configured to spray a liquid onto any surface. The apparatus has a spray housing which has a liquid chamber within. The liquid chamber having an opening into which a liquid may be poured and retained within the chamber. A propellant housing configured to engage the spray housing and form a first seal with the spray housing which precludes spillage of the liquid. The propellant housing holds a propellant having a pressure above atmospheric pressure. The propellant housing forms a second seal with the spray housing which precludes leakage of the propellant into the atmosphere. The spray housing also has a passage to supply the propellant into the liquid chamber. The spray housing includes a spray valve and a spray nozzle. The spray valve is configured for releasing the liquid from the apparatus thru the spray nozzle when the valve is actuated.

Abstract: Information is obtained from a storage container that houses hazardous or potentially harmful waste. A sensor device is inserted into the container to allow a sensor using a sensor well to extend into the container. The sensor collects information on the conditions of the waste. The sensor well extends through a hole for a filter that vents gasses or vapors from the container. The sensor device also includes a housing with circuitry to perform the sensing as well as transmit and receive signals. In this manner, the sensor device transmits signals with information about the materials within the container for remote monitoring.

Abstract: Nebulizer systems, apparatus, and methods are disclosed. The apparatus includes a body, a breathing gas inlet and outlet, and a barrier. The body is sized to be positioned within an adaptor of the nebulizer system. The breathing gas inlet and the breathing gas outlet are at opposite ends of the body. The barrier is coupled to the body. A plurality of holes are formed in the barrier. The plurality of holes open in a direction orthogonal to the breathing gas inlet. The system employs the apparatus in conjunction with a nebulizer and an adaptor. The method includes generating an aerosolized medicament, providing the aerosolized medicament to the adaptor, passing the aerosolized medicament through the barrier of the apparatus, providing a breathing gas to the apparatus, and flowing the aerosolized medicament and the breathing gas through the breathing gas outlet of the apparatus.

Abstract: A pepper spray gun assembly having a trigger valve for dispensing a non-lethal spray, such as a pepper spray. The assembly includes a storage cylinder for receiving a non-lethal spray charge and a smaller pre-charged charging cylinder for engaging the storage cylinder. The charging cylinder is fluidly coupled to the storage cylinder so as to provide a regulated gas in the head space of the storage cylinder. When the trigger of the trigger valve is operated, the regulated gas will force the charge to be expelled through the nozzle of the trigger valve assembly.

Abstract: A hand-held dispensing device operable to dispense a fluid as an atomized spray by hydraulic pressure. The device includes a cartridge containing a fluid to be dispensed and a pressure-multiplying piston pump operable by liquefied gas pressure and manually controlled by a valve. The pump is configured to receive pressure from a compartment containing liquefied gas and transmit higher pressure to the fluid to be dispensed. The pressure multiplying pump produces high pressure, typically between 6-30 bar, which is suitable for generation of fine spray by hydraulic atomization. The device uses about 1/10th the amount of liquefied gas compared to a propellant-based aerosol therefore it has a significant ecological and health benefits.

Abstract: A system for agricultural spraying including a solution reservoir and primary pump for delivering fluid to a plurality of laterally spaced nozzles interconnected by supply conduits. A chemical reservoir and chemical injection pump are interconnected to the output of the primary pump through a mixer. Controllers for the primary pump and chemical injection pump are coordinated to run the pumps a predetermined time to fill each of the supply conduits from the chemical injection pump and primary pump so as to automatically prime the injection system.

Abstract: A device 10 for selectively dispensing ones of multiple fluids, preferably cleaning agents, is disclosed. The device includes a reservoir 50 that holds a diluent “D” therein and a housing 20 that includes a main body segment 22 and a head segment 26. A container assembly 100 may be held between the main body and head segments 22, 26. The container assembly may include at least one container body 105, 110, 112, 114, 116. Each container body 105, 110, 112, 114, 116 houses a concentrate “C,” for example, a concentrated form of a cleaning or other agent therein. The diluent “D” and concentrates “C” are kept separate from each other, whereby no end use product is stored in the device 10. Instead, end use product is mixed on demand during dispensation.

Abstract: This invention is related to a portable texture-spraying apparatus for uniformly dispersing a viscous material. This apparatus broadly includes a tank assembly having a body with an inner wall that defines a sealed cavity, and a piston assembly slidably disposed within the sealed cavity. The piston assembly divides the sealed cavity into an air-side chamber and a material-side chamber by providing an airtight seal therebetween. Additionally an air-control assembly is provided that broadly includes a pressure-control mechanism configured for receiving compressed air and routing a controlled pneumatic pressure to a directional valve configured for adjusting between a dispensing mode and a loading mode. In dispensing mode, the directional valve routes the controlled pneumatic pressure to the air-side chamber biasing the piston assembly toward the material-side chamber.

Abstract: A combination of a liquid fire extinguishing composition including potassium salts or aluminum salts of an organic acid, resulting in a viscous liquid, is finely divided by a nozzle into droplets which may be applied to a fire or fuel therefor or form a cloud of droplets which settle onto such fire and/or fuel which is particularly effective for fighting fires where fuel is at least initially contained such as oil and grease fires in cooling utensils being heated on stoves. Propellant is contained and not entrained in the dispensed fire fighting composition to avoid at least spreading of the fuel beyond the containment.

Abstract: A sprayer for forming and spraying a dispersion of a dispersible substance from a cartridge and a liquid dispersion medium from a source. The sprayer has a first passageway comprising a pump, wherein the first passageway is configured for supplying at least the liquid dispersion medium from the source in response to operation of the pump; a receptacle for removably receiving the cartridge; and a second passageway in fluid communication with both the receptacle and the first passageway for supplying the dispersible substance from the cartridge to the first passageway and, thereby, forming the dispersion in response to operation of the pump. A discharge apparatus is in fluid communication with the first passageway for dispensing the dispersion from the sprayer.

Abstract: A sprayer system has a tank for containing water, a cartridge for containing a dispersible substance, and a sprayer for being in fluid communication with the tank and the cartridge. The sprayer includes a housing with a receptacle for removably receiving the cartridge. A pump is mounted to the housing and in fluid communication with a first passageway carried by the housing. The pump draws the water from the tank into the first passageway while the sprayer is in fluid communication with the tank. A second passageway is carried by the housing and in fluid communication with both the receptacle and the first passageway for supplying the dispersible substance from the cartridge to the first passageway and, thereby, forming the dispersion in response to operation of the pump while the receptacle is in receipt of the cartridge and the sprayer is in fluid communication with the tank.

Abstract: A particulate sprayer includes a gas reservoir to hold a gas, a liquid reservoir to hold a product, and a low pressure section including an exit opening connected to the liquid reservoir. The product includes a liquid and solid particles. The low pressure section transports gas released from the gas reservoir over the exit opening. The product is drawn, pushed, or drawn and pushed from the exit opening into the transported gas to create a spray of the product to be sprayed from the particulate sprayer.

Abstract: A portable and reusable liquid spray apparatus, the spray apparatus configured to spray a liquid onto any surface. The apparatus has a spray housing which has a liquid chamber within. The liquid chamber having an opening into which a liquid may be poured and retained within the chamber. A propellant housing configured to engage the spray housing and form a first seal with the spray housing which precludes spillage of the liquid. The propellant housing holds a propellant having a pressure above atmospheric pressure. The propellant housing forms a second seal with the spray housing which precludes leakage of the propellant into the atmosphere. The spray housing also has a passage to supply the propellant into the liquid chamber. The spray housing includes a spray valve and a spray nozzle. The spray valve is configured for releasing the liquid from the apparatus thru the spray nozzle when the valve is actuated.

Abstract: The invention proposes a fragrance dispenser, comprising a first and a second carrier, each carrier comprising one or more fragrance substances, wherein the fragrance substances comprise one or more fragrance substances a) with a vapor pressure of at least 0.1 mmHg at 25° C. (“HVA”) and one or more fragrance substances b) with a vapor pressure of less than 0.1 mmHg at 25° C. (“LVA”), and wherein the fragrance substances are distributed to the first and second carrier such that at least 80 wt.-% of all HVA fragrance substances are carried by the first carrier.

Abstract: What is disclosed is a self contained, cordless, handheld spray gun. The spray gun comprises a fluid container in intercommunication with at least one fluid nozzle orifice and a source of pressurized gas in intercommunication with at least one gas nozzle orifice and one fan nozzle orifice. The spray gun is actuated by pulling a trigger that actuates the gas flow to the nozzle and further actuation of which opens at least one valve so that the fluid, such as paint, primer, stain, varnish, sealant or the like, can flow to a fluid chamber, atomized, and sprayed through a fluid nozzle orifice out onto the article to be painted.

Abstract: A trigger operated fluid delivery system for dispensing two different fluids is disclosed. The fluid delivery system includes a first container having a first primary fluid, a fluid inlet conduit in fluid communication with the first container, and a pump for drawing the first fluid through the fluid inlet conduit and into a pump chamber. A fluid discharge conduit is located downstream of the pump chamber. The fluid discharge conduit is in fluid communication with the pump chamber and a discharge orifice. The pump discharges the first fluid from the pump chamber into the fluid discharge conduit. The fluid delivery system also includes a second container having a second fluid, that delivers the second fluid into the fluid discharge conduit. The second fluid mixes with the first fluid when the first fluid is discharged into the fluid discharge conduit such that a mixture of the first fluid and the second fluid is discharged through the discharge orifice.

Abstract: An electrostatic spraying device has a capability of confirming that the device is ready for making an electrostatic spraying of the liquid composition on a user's skin. The device includes a nozzle and a pump for dispensing the liquid composition out through the nozzle. An emitter electrode is disposed to electrostatically charge the liquid composition being dispensed for making the electrostatic spraying. The device is provided with a power switch and a selector for selection between a spraying mode and a dripping mode. In the dripping mode, the pump is alone actuated to dispense the liquid composition absent electrostatic charge. In the spraying mode, both of the pump and the emitter electrode are activated to make the electrostatic spraying. Thus, the user can be easy to drip the liquid composition by simply manipulating the selector prior to initiating the electrostatic spraying.

Abstract: An aerosol spray dispenser is disclosed that includes an outer housing that is circular, oval, or non-oval and in which an active composition to be dispensed is provided and a closure sleeve housing within the outer housing. An inner receptacle is provided within the closure sleeve housing and within the volume of the outer housing and contains a propellant to be dispensed. The inner housing may be concentrically located within the outer housing. An actuator assembly houses a nozzle that has a venturi constriction. A tube extends within the outer housing to provide the passage of active composition from within the outer housing by the venturi effect. A conduit for the passage of a propellant from the inner receptacle to the nozzle is provided. The propellant and the active composition are mixed and dispensed as a spray at a nozzle by action of the venturi effect.

Abstract: A fluid containing and dispersing apparatus comprising, a primary fluid containing chamber and a secondary mass containing chamber, wherein said primary fluid containing chamber is primarily intended to contain fluids (such as water) and said secondary chamber is primarily intended to contain other matter used as gardening supplements (fertilizers and the like) for plants. The instant invention provides user a means to avoid direct contact with such supplements, which is advantageous as these supplements often comprise chemicals. In one embodiment the invention features a substantially flexible nozzle with removable fluid distribution heads, external chambers for carrying supplies and equipment. Another embodiment comprises an easy to use pump with a fluid measuring display and a time recording feature. Another embodiment features a solid matter containment chamber without said pump apparatus.

Abstract: A suspension arrangement mounted in support of a boom lift assembly and boom supported thereon on a chassis of an agricultural sprayer is provided. The boom lift assembly is configured to move the boom between a raised, inoperative position and a lowered, operative position. The suspension arrangement includes a pivot linkage pivotally coupling the boom lift assembly and the chassis, and a dampener located between the boom lift assembly and the chassis. During operation of the sprayer, the dampener of the suspension arrangement reduces transfer of an impact force or stress force from transferring between the chassis and the boom lift assembly so as to isolate suspension of the boom lift assembly from the chassis of the sprayer.

Abstract: A device (10) for selectively dispensing ones of multiple fluids, preferably cleaning agents, is disclosed. The device includes a reservoir (50) and a container assembly (100) that can include at least one container body (105, 110, 112, 114, 116). The reservoir (50) houses a diluent “D,” for example, water, and each container body houses a concentrate “C,” for example, a concentrated form of a cleaning agent. Each container body has an outlet assembly (200) with a nozzle (260), so that container assemblies (100) with multiple container bodies correspondingly include multiple nozzles (260). The diluent “D” and concentrates “C” are kept separate from each other, whereby ho end use product is stored in the device (10). Rather, end use product is mixed on demand during dispensation, as part of the, dispensing act. Namely, diluent “D” is pumped through an outlet assembly (200), drawing concentrate “C” thereinto which mixes into the end use product while exiting the device (10).

Abstract: A spraying device includes a housing that has a spraying unit and a trigger assembly. The spraying unit is a removable insert within the housing. The spraying unit includes an air chamber that is coupled to a liquid tank. A front end portion of the air chamber has a nozzle. The air chamber receives a liquid tube that opens in the nozzle. The liquid tube receives a needle and the needle and the liquid tube are coaxial with each other. The trigger assembly controls the flow of liquid through the liquid tube by positioning a tapered front end of the needle. The trigger assembly includes a trigger that has a first position and a second position. In the first position, the opening of the liquid tube is closed by the needle. In a second position, the liquid tube is opened to discharge a liquid from an opening of the liquid tube.

Abstract: The present invention is a dispenser adapted to be coupled to a fluid container. The dispenser comprises a dispensing head, an energy source, and a fluid pathway. The dispensing head includes a fluid pump, a motor adapted to power the pump, a trigger adapted to control the motor, and a nozzle orifice in fluid communication with a discharge end of the pump. The fluid pathway has one portion in fluid communication with an intake end of the pump and another portion inside the container.

Abstract: An aerosol spray dispenser is disclosed that includes an outer housing that is circular, oval, or non-oval and in which an active composition to be dispensed is provided and a closure sleeve housing within the outer housing. An inner receptacle is provided within the closure sleeve housing and within the volume of the outer housing and contains a propellant to be dispensed. The inner housing may be concentrically located within the outer housing. An actuator assembly houses a nozzle that has a venturi constriction. A tube extends within the outer housing to provide the passage of active composition from within the outer housing by means of the venturi effect. A conduit for the passage of a propellant from the inner receptacle to the nozzle is provided. The propellant and the active composition are mixed and dispensed as a spray at a nozzle by action of the venturi effect.

Abstract: A vessel for conveying a precursor fluid from the vessel, comprising: an interior volume having an upper volume and a lower volume, wherein the two volumes are in communication and the lower volume contains precursor; a lid comprising a fluid inlet directing carrier gas into the vessel, a “T” fluid outlet, a sidewall having an upper lip wherein the upper lip contacts the lid; a separator interposed between the lid and the sidewall wherein the separator resides adjacent the upper lip and segments the interior volume into the upper volume and a lower volume; and an inlet plenum in communication with the fluid inlet having a plenum chamber opening towards the separator to direct the carrier gas through the separator and towards the precursor. A method for using the apparatus is also disclosed.

Abstract: What is disclosed is a self contained, cordless, handheld spray gun (100). The spray gun (100) comprises a fluid container (225) in intercommunication with at least one fluid nozzle orifice (201) and a source of pressurized gas (204) in intercommunication with at least one gas nozzle orifice 207 and one fan nozzle orifice (227). The spray gun (100) is actuated by pulling a trigger (231) that opens at least one valve (202) so that the fluid, such as paint, primer, stain, varnish, sealant or the like, can flow to a fluid chamber (206), atomized, and sprayed through a fluid nozzle orifice (201) out onto the article to be painted.

Abstract: A dispenser for mixing and dispensing a liquid chemical concentrate from a container with a stream of diluting water. The dispenser includes two valve members which control in one instance the water flow and in another instance the amount of concentrate being siphoned into the water flow. The dispenser is of a simplified design yet can afford a variety of different chemical concentrations, as well as various flow rates of the water.

Abstract: A shower head for dispensing a plurality of liquids into a continuous shower stream comprising a main shower head consisting of a divergently outwardly extending conical chamber bordered by a conical shell and a perforated arcuate member opposite from an apex of the conical chamber and through which water is sprayed onto the operator of the shower, a plurality of liquid dispensers arranged circumferentially around the main shower head, the main shower head having a main button moveable to an “off” position and an “on” position, each separate liquid dispensing member having its own chamber for containing a quantity of liquid therein to be dispensed into the main shower stream, passageways in each separate compartment communicating between the liquid contained in that compartment and the main shower head, a separate compartment button for each compartment and having an “on” and an “off” position, each compartment button in its “off” position preventing communication between the liquid in that compartment and th

Abstract: In a treatment liquid supply system that supplies treatment liquid used for coating industrial objects for film formation including a semiconductor substrate, a display substrate, a glass and the like, a nozzle connected to a treatment liquid tank vacuum-sucks and injects the treatment liquid from the treatment liquid tank due to a negative pressure occurring in the nozzle, wherein supply control of a small flow amount of the treatment liquid to the nozzle can be performed due to a difference pressure between pressure in the treatment liquid tank and the negative pressure occurring in the nozzle.

Abstract: The inventive device for aromatizing a gas medium comprises a chamber provided with a flow booster for mixing the gas medium with aromatic fumes. Said fumes are delivered to the chamber by a dispenser which is embodied in the form of a reservoir containing a liquid aromatic substance. The dispenser is provided with a system of nozzles for supplying the aromatic substances to the mixing chamber. The supply of the substance is carried out by producing pressure pulses inside the chamber. Said pulses occur as a result of a pulse operation of actuating elements which are arranged in the chamber and embodied in the form of thermistors, stricting elements and controlled commutator. Said actuating elements are controlled by a field programmed logic array which is also controlled by a panel or a computer and programmed in relation to a value, duration and repetition rate of voltage pulses coming to actuating elements. The diameters of the nozzles range from 10 to 70 ?m, the distance therebetween being less than 50 ?m.

Abstract: An apparatus for adapting a blower system to the dispersing of liquid material is partially housed within an extension tube of a portable blower and includes a pressurizing tub with an inlet for accepting airflow discharged by the blower. The pressurizing tube discharges into a liquid container thus increasing pressure within the container. An extraction tube exits the container and meets a Venturi tube that also accepts airflow discharge by the blower. A vacuum is created in the extraction tube through first and second apertures that allow fluid communication between the Venturi tube and the extraction tube. The vacuum created in the extraction tube extracts liquid from the liquid container and the liquid is drawn out of the extraction tube through the Venturi hole into the Venturi tube mixing with air flowing there through and discharging into airflow by-passing the spray adapter apparatus.

Abstract: A spray device includes a spray mechanism and a reservoir containing a substance for spraying. For example, the substance may be a cosmetic or other care product. The reservoir is arranged so as to be capable of being removably mounted on the device so that the substance can be selectively dispensed by the spray mechanism. The reservoir includes a substance outlet passage and a closure member for closing the passage when the reservoir is not mounted on the device. The spray mechanism and the closure member are arranged so that the closure member opens in response to the reservoir being mounted on the device. The reservoir also includes at least a first partition and first and second compartments capable of containing the substance. The compartments are arranged to feed the spray mechanism with the substance and are disposed on either side of the first partition.

Abstract: A water and fertilizer dispenser includes a hollow watering container forming a side cavity for holding a fertilizer container that fits into the side cavity and carries a fertilizer composition to be mixed with each new batch of water carried by the watering container. The fertilizer composition is a viscous aqueous composition that clings to a serrated stem on the cap of the fertilizer container, for self-measuring dispensing of the fertilizer composition. A removable sprinkler head for the watering container is stored in a receptacle formed as an integral part of the watering container.

Abstract: The transportable texture sprayer is a tool comprised of a tank that is filled with a texture material through a large orifice at the top of the tank and sealed with a cover. A swiveling orifice integrated into the cover for the large drain orifice at the bottom end of the tank, accepts a hose as the passage for the material to the spray gun when the tank is pressurized. An air compressor supplies pressure to both the spray gun and the tank. An air line that links the compressor to one leg of a three way nipple mounted to the tank air inlet which also provides the air pressure for the tank by way of its connection to a second leg to the three way nipple. A short length of air line is connected at one end to air pressure regulator that is coupled to the spray gun, with the other end connected to a third leg of the three way nipple that allows the air pressure for the tank and the spray gun to be regulated separately.

Abstract: A nozzle 10 which receives first and second materials 24, 30 and which has an outlet aperture 18. The first material 24 is received within the outlet aperture 18 and is atomized by the second material 30 within the outlet aperture 18 before it is emitted from the nozzle 10 and applied to a targeted location and/or object 26.

Abstract: A circuit for demodulating a signal having a temporal mixture of different modulation schemes applied thereto includes a synchronization-word-detection unit which detects synchronization words included in the signal, and generates first and second position signals, based on the detected synchronization words, indicative of respective predetermined positions in the signal, a first selection unit which selects the first position signals during a first period, and selects the first position signals and the second position signals during a second period, and a carrier-reproduction unit which carries out frequency capturing during the first period by using the first position signals selected by the first selection unit, and carries out phase capturing during the second period by using the first position signals and the second position signals selected by the first selection unit, thereby reproducing a carrier.

Abstract: A new fluid temperature control for a heated fluid cleaner with multiple outlets for maintaining the temperature of the discharge fluid when multiple outlets of the heated fluid cleaner are opened. The inventive device includes a fluid reservoir for containing a supply of fluid, at least one pump for suctioning fluid from the fluid reservoir. A heater is also in fluid communication with the pump for heating a flow of fluid received therefrom. The heater preferably comprises a combustible fuel heater and has a fuel conduit fluidly connecting the heater to a fuel reservoir. An outlet conduit is fluidly connected to the heater for receiving heated fluid therefrom. The outlet conduit has a plurality of outlets for discharging fluid therefrom. A heater control device is provided for controlling the temperature of the fluid exiting the heater such that it is maintained at a constant predetermined temperature when more than one outlet is opened.

Abstract: A single, unitary reactor and its feed mechanism for microorganisms, nutrients, and, commonly, also enzymes are disclosed. The reactor forms and dispenses a slurried biomass for turf and soil enhancement, water body treatment and agricultural application through conventional irrigation systems. The feed mechanism feed the various components into the slurry within the reactor on any desired schedule, including different schedules for different components. The microorganisms, nutrients and enzymes are provided in the form of pellets to individual compartments within the feed device, and they are individually injected into the slurry intermittently upon a predetermined schedule. Preferably the housing will contain a plurality of the compartments for a variety of different slurry components. The component pellets may be of any convenient shape and size, but preferably will be either disk-shaped or spherical.

Abstract: A sprayer control system and method for using same includes a pump for directing a mixture of chemical and fluid carrier to a flow control valve. The flow control valve includes an intake port, a bypass port, and a regulated outlet port. A valve member is rotatable to direct fluid from the intake port either to the bypass port or the regulated output port. Fluid from the bypass port is sent through a bypass line back to the intake opening of the fluid pump. Various chemical tanks are connected to the bypass line for injecting metered amounts of chemical into the bypass line.

Abstract: A method of preparing a mixture of a carrier liquid and an active liquid in required proportion including: providing a flow of carrier liquid, controlling a liquid flow to an appropriate portion of the carrier liquid flow from pressure drop measurements of the proportional liquid flow, displacing active liquid with the proportional liquid flow without liquid contact, and including the displaced active liquid in the carrier liquid flow, thereby producing a liquid mixture in the required proportion without a flow meter. The mixed liquid may be used in at least one of a sprayer and a nutrient film equipment. The displacement medium may be provided from the carrier liquid supply.

Abstract: An apparatus for dispersing an active ingredient, such as a fumigant, fertilizer or room freshener in which the active ingredient is placed in a sample cylinder and a pressurized solvent/propellent is subsequently introduced from a source. The solvent/propellent expands to adopt a liquid phase and a gaseous phase. The liquid phase serves to absorb the active ingredient and the gaseous phase serves to propel the borne active ingredient out of the apparatus through a dispensing outlet where further expansion takes place and the active ingredient is dispersed in a fog or mist. Flow restrictors create a pressure differential between the sample cylinder outlet and a by-pass portion to enable total absorption of the active ingredient. The flow restrictors and conduits for the system are contained in a mixing head for the sample cylinder.

Abstract: Dispensing apparatus incorporates a pressurized liquid metering reservoir and associated manually operable dispensing valve and a pressurized gas metering reservoir and associated manually operable valve respectively connecting the reservoirs to a common spray orifice. The valves are adapted to be simultaneously operated whereby a burst of gas from the gas reservoir breaks up a burst of liquid from the liquid reservoir.

Abstract: The invention is concerned with a method and apparatus for dispersing an active ingredient, such as a fumigant. The active ingredient is placed in a container and a pressurized solvent/propellent is subsequently introduced. The solvent/propellent expands to adopt a liquid phase and a gaseous phase. The liquid phase serves to absorb the active ingredient and the gaseous phase serves to propel the borne active ingredient out of the apparatus where further expansion takes place and the active ingredient is dispersed in a fog or mist.

Abstract: A device and method for precisely spraying quantities of pesticides or other chemicals or fluids with little waste is disclosed. The invention includes dual tanks, one each for the concentrated fluid (typically pesticide) and diluting agent (typically water), and a means for automatically mixing their contents downstream of the tanks during the spraying operation. Variable pressure controls, fluid flow rate monitoring devices, and a finely-gauged injection means such as a hollow needle allow for precise mixing of the two fluids contained in the tanks, making the sprayer useful for applying biological control agents as well.

Abstract: An improved valve for use in combination with a hand-held nozzle for a lawn treatment system which is designed to allow selective application of a second liquid chemical by the operator in conjunction with the application of a first liquid chemical. The system includes separate pressurized sources for each of the two chemicals as well as a pair of hoses concentric with each other, each hose communicating with one of said pressurized sources and said valve. The nozzle includes means for connecting the hose associated with the first pressurized source, means for connecting the hose associated with the second pressurized source, and an operator controlled valve means for permitting and restricting flow of said second chemical through the valve, a nozzle, and means for connecting a nozzle to the valve.

Abstract: A direct injection chemical sprayer for spraying a fluid mixture onto a field as the sprayer is moved over the field. The sprayer includes a chemical pump mechanism for pumping chemicals from a chemical tank, a sensing mechanism for sensing the speed at which the sprayer is being moved over the field, and a drive mechanism operatively coupled to the sensing mechanism and to the chemical pump for varying the output of the chemical pump mechanism in proportion to the speed at which the sprayer is being moved over the field. A second embodiment includes self-contained replaceable cartridges each of which has a tank, a pump, drive mechanism therefor, and calibration apparatus. There are removable intermediate gear boxes and a main gear box, each of which has a plurality of selectable drive mechanisms for driving the pump of the gear box at a selected speed.