Abstract: The utility model discloses an adjustable coating cleaning gun, comprising a gun body, a trigger switch and a cleaning solution storage kettle, wherein a cleaning spray head is fixed to a gun head of the gun body; a spray pipe joint is fixed to a gun head air passage of the gun body; a swinging spray pipe is arranged in the cleaning spray head; the swinging spray pipe is a hollow elliptical pipe; a long axis of a section of the hollow elliptical pipe is longitudinally arranged, and a short axis is horizontally arranged.

Abstract: The present invention addresses the problem of providing an atomizer that is particularly suitable for atomizing a cosmetic. An atomizer (1) for atomizing a coating composition such as a cosmetic using a compressed gas. The atomizer (1) comprises: an atomizer main body (3) provided with a nozzle (8) that is a port for jetting the coating composition; and a gas supply means (30) for supplying the compressed gas to the atomizer main body (3). In the atomizer main body (3), a composition supply tank (2) for supplying the coating composition, an operation part (6) for jetting the coating composition from the nozzle (8) and an insertion part (7), into which a user's fingertip is to be inserted, are formed.

Abstract: Foam dispensers, refill units for foam dispensers, and liquid pumps for use in foam dispensers are disclosed herein. In one embodiment, an inverted foam pump includes a compression chamber having an inlet valve and an outlet valve. The compression chamber is in fluid communication with a flow restrictor, an atomizer, a mixing chamber, a foaming chip and an outlet. The inlet valve, outlet valve, flow restrictor, atomizer, mixing chamber, foaming chip and outlet extend along a common axis. An air inlet is included that extends into the mixing chamber; the air inlet is an opening to atmospheric pressure. During operation, the liquid pump is located below the liquid container and liquid flowing from the compression chamber is accelerated and atomized. The atomized liquid enters the mixing chamber at a velocity sufficient to draw in air from the air inlet to mix with the liquid to form a foam.

Abstract: Provided is an air conditioner for an automobile capable of having uniform perfume performance in a width direction of the automobile by discharging air mixed with a perfume component supplied from a perfume generating unit through a discharging part.

Abstract: A micro atomizer to produce stable aerosol concentrations having an aerosol mass median aerodynamic diameter (MMAD) of less than 10 microns with liquid flow rates in the microliter per minute range is provided. The micro atomizer includes a liquid channel in the shape of a thick-wall tube and a cap having an aerosol outlet orifice whereby a liquid-gas contact space is formed by the internal surface of the cap and the substantially flat end of the liquid channel. Pressurized carrier gas and the liquid to be aerosolized are allowed to come into contact within a precisely formed liquid-gas contact space. The desired aerosol characteristics are accurately established, stable, and reproducible. In an exemplary embodiment, the micro atomizer is used with a syringe and syringe drive to provide a continuous liquid source for aerosol generation.

Abstract: A pneumatic dispenser for dispensing viscous material, for example, mastic caulk, from a container is described. The dispenser comprises a fluid supply arrangement for accepting a dispensing nozzle of the container and providing a flow of pressurized fluid to the dispensing nozzle to enable the material to be dispensed as a spray. A moveable member can be used to control the flow of pressurized fluid, for example a member disposed on a cap for closing a container containing compartment of the dispenser and/or a moveable member disposed around the dispensing nozzle. The arrangement of the fluid supply arrangement allows for convenient control of the pressurized fluid flow for spraying the material. Also disclosed is a dispenser with a readily exchangeable pressure application interface for applying a dispensing pressure to the container, enabling the dispenser to be used with both cartridge and foil pack containers.

Abstract: A method of texturing a wall or ceiling with non-acoustical joint compound by providing a collapsible bag having an opening at its top and is adapted to contain non-acoustical joint compound for forming a textured coating on the wall or ceiling and providing a spray nozzle having a low pressure input port, a joint compound suction port attached to the opening at the top of the collapsible bag, and an output port for spraying the non-acoustical joint compound. A low pressure stream of air from an air gun attached to the low pressure input port urges a small quantity of the non-acoustical joint compound to be sprayed out of the spray nozzle when the bottom of the collapsible disposable bag is raised above its top to either allow or force the joint compound to flow into the suction port and into the interior of the spray nozzle.

Abstract: A chemical delivery system that delivers concentrated liquid chemical using a non-liquid motive fluid to deliver the concentrated liquid chemical in an undiluted form to a point of use. The concentrated chemical is delivered by the motive fluid by way of the aggressive interaction of a high-pressure jet stream of motive fluid causing a nearly complete local vacuum such that the concentrated chemical is drawn under low pressure into a jet vortex to form a chemical dispersion. Forming the chemical dispersion by way of this venturi eduction process occurs in a substantially continuous real-time manner allowing for multiple methods of controlling the total amount of chemical delivered and the rate in which it is delivered to the application device.

Abstract: A fire and explosion suppression system comprises a source (5) of high pressure water which is fed to a misting nozzle (13) at one input of a mixing unit (6), and a source (14) of high pressure inert gas, such as nitrogen, which is fed along a pipe (20) to another input of the mixing unit (6). Inside the mixing unit (6), water mist, in the form of an atomized mist of very small droplet size is mixed with the pressurized gas and exits the mixing unit (6) at high pressure and high velocity along a pipe (22) and is thence discharged through spreaders (26, 28). The source (5) of the water is pressurized by a feed (30) from the source of pressurized inert gas. The mass flow rate of the water will therefore reduce as the pressure of the gas decays. This tends to maintain the ratio of the mass flow rate of the water to the mass flow rate of the gas constant. This is found to produce and maintain an advantageous distribution of droplet size in the discharged unit.

Abstract: In a second tank unit, a controller controls the on/off switching of a water supply solenoid valve so that water is stored in a sub tank within the level of Lu to Ll. At the same time, the controller controls the on/off switching of a pressurizing solenoid valve and a decompressing solenoid valve so that the air pressure in the upper space in the sub tank is maintained at a target value. As a result, regardless of the water level in the sub tank, the back pressure in the tank is maintained at the target value higher than atmospheric pressure. In this state, when a central controller turns on a water spouting solenoid valve, pressured water rapidly spouts from a nozzle. Moreover, a change in the target values of the back pressure promptly changes the height of the spouting water. Accordingly, water spouting can be promptly started/stopped, and the height or size of the spouting water can be readily and smoothly changed.

Abstract: A spraying device is provided that includes a cartridge containing a first fluid, the cartridge being removably connected to a sprayer body. The cartridge is oriented such that gravity exerts a downward force on the first fluid. The sprayer body includes a conduit for receiving a second fluid. A valve is coupled to the conduit. The valve allows the second fluid to flow through the valve, thus creating a Venturi vacuum that draws the first fluid out of the cartridge and into the valve to enable the first and second fluids to mix and form an outlet stream. An orifice meters a predetermined amount of the first fluid into the valve to achieve a predetermined ratio of the first fluid to the second fluid. The outlet stream is then dispensed from a spray nozzle.

Abstract: A jetspray nozzle for cleaning a photolithographic mask or semiconductor wafer and method for cleaning the same. The jetspray nozzle in one embodiment includes a water supply inlet, a gas supply inlet, a first row of gas injection nozzles communicating with the gas supply inlet, a mixing cavity defining a jetspray nozzle outlet, and a flow mixing baffle disposed in the cavity. The mixing baffle preferably is configured and arranged to combine gas and water in the jetspray nozzle for delivering a concentrated stream of gas with a cluster of micro water droplets entrained in the gas for removing contaminant particles from the mask. The jetspray nozzle is capable of cleaning photo masks or wafers without the use of chemicals. In one embodiment, the water may be deionized water and the gas may be nitrogen. In another embodiment, the jetspray nozzle further includes a second row of gas injection nozzles spaced above or below the first row of gas injection nozzles that communicate with the gas supply inlet.

Abstract: A directed multiport jetting nozzle in an eductor having a focal point of the motive fluid inside the throat of a venturi-diffuser body of the present eductor provides an efficient pump and mixer providing substantial surface contact area between the motive flow and the bulk material for movement through the outlet of the eductor.

Abstract: An apparatus, system, and method for providing a fluid stream into an environment for cooling purposes are disclosed. Such an apparatus includes a body portion and a nozzle, the nozzle being adapted to direct water into the environment. Such an apparatus may include a body portion having a flow channel defined therein for gas flow therethrough; and, a nozzle operatively disposed within the flow channel; said nozzle adapted to direct a liquid therefrom; wherein the channel and the nozzle are operatively disposed relative to each other so that a gas flowing through the channel and the liquid are combined into a fluid stream directed from the apparatus into the surrounding environment.

Abstract: Systems according to embodiments of the present invention include an antifreeze manifold carrying pressurized antifreeze liquid, the pressurized antifreeze liquid having a foam surfactant, an air manifold carrying pressurized air, a junction of the antifreeze manifold and the air manifold, the junction configured to combine the pressurized antifreeze liquid and the pressurized air to form antifreeze foam, a foam generator configured to enhance bubble formation, and an outlet conduit to receive the foam. Methods according to embodiments of the present invention include storing an antifreeze liquid having a foam surfactant, pressurizing the antifreeze liquid to a first pressure, pressurizing a gas to a second pressure, wherein the second pressure is different from the first pressure, combining the antifreeze liquid at the first pressure with the gas at the second pressure to form an antifreeze foam, and injecting the antifreeze foam into a conduit to displace freezable fluid in the conduit.

Abstract: The present invention relates generally to an apparatus for applying texture materials to wall and ceiling surfaces, and more particularly to an improved hopper gun with an internal air control valve for controlling the on and off function of the atomizing air stream and an integrated flow control valve to manage the volume/pressure ratio of the pressurized atomizing air. The air control valve and flow control valve integrated into the improved hopper gun provides improved control over the texturing process and simplified operation of the improved hopper gun.

Abstract: Improved therapeutic sclerosing microfoams and methods and devices for making them are provided that have advantage in producing a consistent profile injectable foam with minimal input by the physician yet using high volume percentages of blood dispersible gases, thus avoiding use of potentially hazardous amounts of nitrogen.

Abstract: A liquid spray nozzle assembly for an outlet pipe of an air blower, the nozzle assembly includes an outer annular member adapted to be secured to the outlet pipe, an inner member radially spaced from and secured to the outer member to define air flow passages, the inner member having a central opening and a lower surface with vanes extending therefrom; and a supply pipe extending into the central opening such that the air flowing through the central opening will act to shear the liquid exiting the supply pipe against the edge of the opening to break up the liquid into droplets that will be carried along in a dispersed pattern with the air flowing between the outer annular member and the inner member.

Abstract: The invention relates to a mixing chamber for producing compressed air foam in fire extinguishing devices. The mixing chamber has a compressed air inlet, an extinguishing agent inlet and a compressed air foam outlet. The contour of the mixing chamber tapers towards the compressed air foam outlet. The invention also includes a fire extinguishing device. The fire extinguishing device includes an extinguishing agent container, a connecting device for connecting a source of compressed air to a mixing chamber of the kind described above.

Abstract: A substance dispersing apparatus having a cartridge used to deliver substances for the cosmetic, medical, dental, automotive, construction, and other industries.

Abstract: A portable sprayer having a backpack to which are secured a blower unit and a supply tank. The blower unit includes a drive motor and a blower driven thereby. The blower unit is mounted on the backpack by at least one anti-vibration element. The supply tank, for example for spray agent, is mechanically separated from the blower unit and is also mounted on the backpack by at least one anti-vibration element. A removable, at least approximately rigid connection element is provided for coupling the supply tank and the blower unit together or for isolating them from one another with respect to vibrations.

Abstract: A micro-nozzle for generating micro-bubbles. The micro-nozzle includes a liquid inlet forming a liquid path, a gas inlet, and a constricting wall positioned in the liquid path and shaped to abruptly constrict said liquid path to a width of less than approximately 20 um and then gradually diverge.

Abstract: An airbrush including a nozzle has a first connecting section and a polished second connecting section. A projecting stopper section is disposed between the first and second connecting sections. The second connecting section of the nozzle is inserted in a color outlet of a head section of the nozzle. A ventilating plate is fitted on the first connecting section. The ventilating plate is formed with at least one ventilating section for the air to flow through. A shoulder section is formed in the nozzle cap for pressing the ventilating plate against the stopper section of the nozzle. Accordingly, the second connecting section of the nozzle is fixedly fitted in the color outlet of the head section of the brush body. Therefore, the nozzle is fixedly assembled with the brush body by means of the nozzle cap and the ventilating plate, whereby the nozzle can be quickly and conveniently disassemble/assemble without using any tool.

Abstract: A portable fire extinguisher comprising a blower tube assembly that includes an outer tube with an inner mixing chamber disposed “upstream” from an adjacent outlet port that provides a passage to direct a discharge flow of mixed air and fire retardant out of the outer tube to extinguish a fire. The inner mixing chamber is adapted for communication with a portable reservoir containing a liquid fire retardant which is enabled to flow into the inner mixing chamber. The blower tube assembly further includes an inner tube that defines a blower tube inlet port adapted to receive the outlet port of a portable forced air blower. The inner tube is disposed for communication with the inner mixing chamber of the outer tube to enable a continuous volume of forced air to flow from a portable forced air blower, through the inner tube and into the inner mixing chamber of the outer tube.

Abstract: An airbrush as used for a media delivery system comprises an air pressurizer, a power source and a media reservoir integrated into a single hand held device. The air pressurizer comprises a pump and motor assembly delivering pressurized air by way of first and second air conduits to a nozzle. The media is stored in a detachable reservoir housed within the device and provided with a liquid conduit for conducting the media to the nozzle. Upon actuation of a spray button, the pump and motor assembly causes a stream of air to flow through the first and second air conduits and past an opening in the media conduit. Thus, a negative pressure is induced into the media conduit. The negative pressure draws liquid from the reservoir through the media conduit where it is entrained within the air stream as minute droplets and exits the body of the airbrush through a nozzle.

Abstract: A liquid mist fire extinguisher, comprising a container for holding a gas and a liquid under pressure. The extinguisher has valve assembly at the upper end of the container, a valve for simultaneously releasing said gas and said liquid separately from the container, and a hose for feeding said gas and said liquid separately through a nozzle. The nozzle assembly includes means for feeding said gas and said liquid separately through a mixing chamber, and exiting orifices in an end surface of said nozzle assembly for issue of mixed gas and liquid in a fine mist.

Abstract: A method and apparatus for delivering aromatic substances for olfactory stimulation, treatment and/or therapy which includes a delivery assembly including a chamber into which air is introduced and subsequently delivered under even pressure through a mixing venturi. A plurality of conveying conduits are selectively communicated with the venturi so that aromatic substances are entrained in the air passing through the venturi to a discharge mask or zone. The conduits communicate with a plurality of containers of aromatic liquids, solids, and semi-solids. The containers are subject to selective introduction of pressurized air by way of a plurality of valves. A system is provided for controlling the operation of the valves to thereby control the substances discharged from the apparatus.

Abstract: An adjustable adapter includes two arms, each having an axis, a surface substantially normal to the axis, wherein the surfaces of the arms face each other, an end and a passageway for fluid communication between the end and the opening, wherein one of the arm ends is for connection to an inlet of an applicator and the other arm end is for connection to an outlet of a container, and a fastener for pivotally coupling the arms. One of the arm surfaces is provided with a groove in fluid communication with both arm openings. The groove is sealed to prevent fluid from leaking from between the surfaces. When the fastener is in a rotation-resisting mode, the fastener forces the surfaces of the arm toward one another sufficiently to increase friction and resist rotation therebetween, and when the fastener is in a rotation-permitting mode, the fastener releases the surfaces sufficiently to decrease friction and permit rotation therebetween.

Abstract: A programmable odor-bearing substance diffusion device includes a number n of odor diffusion devices, where n is equal to or greater than 1, each odor diffusion device including a store of an odor source which is dispensed by the odor diffusion device, a device for independently controlling each odor diffusion device to emit a single odor or a mixture of odors from a by a combination of p of the n stores, and a programmable control device for establishing odor peak emission cycles and a predetermined interval between two successive emission cycles, the predetermined interval being based on an olfactory saturation and desaturation times of the olfactory system of a user.

Abstract: The present invention relates to a dual spray gun for painting and cleaning, and more particularly, to a combined tin and pipe dual spray gun for painting and cleaning, which can be used separately and independently, increasing working radius at will, and can be used in unitized construction, depending on the working environments. The present invention includes a T-shaped main body, which is connected with an air blow-gun at a back end, and connected to a blow head at a front end. A pipe is secured on a vertical sucking tap hole. A tank is connected on a tip end of the pipe to construct a combined tin and pipe structure. The tank can be connected on the T-shaped main body directly to construct a tin structure or the pipe can be connected on the T-shaped main body to construct a pipe structure. So the three structures can meet necessities of any working environment so that the working radius is extended infinitely.

Abstract: An apparatus for cleaning an object surface generally includes a junction, a holding tank for containing a cleaning solution therein and a compressor in fluid communication with the holding tank. The holding tank is in fluid communication with a first inlet of the junction and the compressor is in fluid communication with a second inlet of the junction. The compressor supplies an amount of compressed air to the holding tank to create a positive pressure in the tank thereby forcing an amount of cleaning solution out of the tank into the first inlet of the junction. The compressor also supplies an amount of compressed air to the second inlet of the junction where it is combined with the cleaning solution supplied at the first inlet of the junction to produce an atomized mist discharged from an outlet of the junction.

Abstract: An oil mist discharger (1) is disclosed. The oil mist discharger (1) utilizes a flow regulator (27) which comprises a main passage (28), sub-passages (29) and an agitation chamber (30). Differential pressure between air and oil is created and utilized in drawing oil into an oil feed chamber (39) to be mixed with air. The oil-containing air is sent to the flow regulator (27) and fed into the agitation chamber (30) via the main passage (28) and sub-passages (29) in jet streams to be transformed into a well blended oil mist, which is discharged from a discharge nozzle.

Abstract: A foam dispenser utilizes a deformable reservoir, a foamable fluid and air or other gas; a discharge device and an arrangement for producing foam that includes a plurality of mesh screens. When the dispenser is operated, air from inside the dispenser is mixed with the fluid to produce foam. The dispenser employs a shaped and resilient deformable seal for use in quickly recharging the container with air used in the creation of foam. The dispenser also advantageously employs an integrally molded swirl manifold to create a foam of excellent quality and consistency.

Abstract: A color selection means for an integrated color selecting and blending system utilizes a disc having a flat surface with an axial projection therefrom for connection to an airbrush in order to supply selected color paint under regulated air pressure from a group of bottles storing different colors of paint. An opening in a convex surface of the disc opposite the flat surface thereof at a predetermined radial distance from the axis of the projection is connected by a slant bore to the axial projection for passing paint under pressure to an airbrush. A cylindrical block having a concave surface for a tight matching fit with the convex surface of the disc has bores parallel to its axis at the aforesaid predetermined radial distance. By turning the cylindrical block on its axis, the parallel bores, to which the paint tubes are connected, can be individually selected to supply paint by aligning any one of those bores with the slant bore opening of the convex surface of the disc.

Abstract: Spherical particles having a size on the order of 0.1 to 100 microns in size are created by systems and devices of several types. The device includes a source of a stream of gas which is forced through a liquid held under pressure in a pressure chamber with an exit opening therein. The stream of gas surrounded by the liquid in the pressure chamber flows out of an exit orifice of the chamber into a liquid thereby creating a monodispersion of bubbles with substantially uniform diameter. The bubbles are small in size and produced with a relatively small amount of energy relative to comparable systems. Small particles of liquid may also be produced. Applications of the technology range from oxygenating sewage with monodispersions of bubbles to inhalation therapy with monodisperse aerosol dispersions of pharmaceutically active drugs.

Abstract: A nozzle spraying a cleaning liquid to an observation window. A jet spray aperture for spraying fluid is provided to the distal end portion of an insertion portion. A first fluid supplying passage connected to a nozzle and a control-valve. A second fluid supplying passage connected to the jet spray aperture. A casing divides the first fluid supplying passage into a nozzle side passage and a valve side passage, connects to the second fluid supplying passage, and includes a pump connector detachably connected to the fluid pumping means and a supplying passage. A switching passage, formed in the pump connector, switches between positions wherein the nozzle side passage is connected to or cut off from the valve side passage, depending on the state of the supplying passage. A check valve is provided to the supplying passage for preventing flow from the switching passage side to the suppyling passage side.

Abstract: A device for discharging a fire retardant material comprising a housing capable of storing a fire retardant material. The housing has an initiator attached to a first end, while a discharging port is attached at a second end. Additionally, sealed within the housing is a driver which forces the fire retardant material towards the discharging port. The driver follows a path defined by a bypass tube located centrally within the housing. The driver is forced along the path by exit gases created by the initiator attached at the first end. The housing also has a choke assembly located near the second end thereof. The choke assembly selectively controls the rate at which the fire retardant material and the pressurized gases exit through the discharging port. The choke assembly has a choke body with a first and second cavity. Furthermore, choke body has passageways and apertures for directing the flow of both the fire retardant material and the pressurized gases.

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 description is given of a sanitary article or object, particularly a hand-operated shower, having a changeover device (2) for controlling a liquid flow, the sanitary article having a liquid inlet and a liquid outlet, as well as an air suction device which can be turned on or off by operating the changeover device in the manner of a water jet pump. The changeover device is so constructed that a passage cross-section formed between the liquid inlet (6) and liquid outlet (7) can be widened on turning off the air suction device. For this purpose, in addition to the pump jet opening (38) of the air suction device, it is possible to open a ring channel-like, further passage cross-section (30) arranged concentrically thereto.

Abstract: A cleaning device has a tank for liquid and a conveying device as well as an outlet opening. A conduit is connected to the tank and to the outlet opening. The conveying device is connected to the conduit and introduces a compressed gas into the conduit so that the cleaning medium exiting from outlet opening is a mixture of the liquid contained in the tank and the compressed gas.

Abstract: Device for generating a lubricant spray in a compressed air line having an air passage channel (2) in a housing (1), a regulating valve (5), in particular a proportional valve, which can change, via a control flap (14), the free cross-section of passage between the inlet (3) and the outlet (4) of the air passage channel (2) in dependence on the pressure difference, and with a lubricant supply container (7) connected to the inlet (3) of the air passage channel (2) via a filling valve (6) comprising a valve body (15) and connected to the outlet (4) via a suction line (rising pipe 8) and an oil sprayer (12), wherein the filling valve (6) closes at a pressure difference of more than approximately 1 bar, wherein the regulating valve (5) and the filling valve (6) are disposed close to one another and the control flap (14) of the regulating valve (5) and the valve body (15) of the filling valve (6) are made from a single piece of elastic material.

Abstract: Spherical particles having a size on the order of 0.1 to 100 microns in size are created by systems and devices of several types. The device includes a source of a stream of gas which is forced through a liquid held under pressure in a pressure chamber with an exit opening therein. The stream of gas surrounded by the liquid in the pressure chamber flows out of an exit orifice of the chamber into a liquid thereby creating a monodispersion of bubbles with substantially uniform diameter. The bubbles are small in size and produced with a relatively small amount of energy relative to comparable systems. Small particles of liquid may also be produced. Applications of the technology range from oxygenating sewage with monodispersions of bubbles to inhalation therapy with monodisperse aerosol dispersions of pharmaceutically active drugs.

Abstract: A detersive foam producer and expeller pneumatic machine characterized by a main conduit formed by two sections coupled to both mouths of a flow regulator valve, each having a corresponding smaller shunt, of which the front section shunt connects up a pneumatic pressure regulator and the shunt corresponding to the rear section is connected to a diaphragm pneumatic pump by its outlet mouth, the pump being in connection with a suction hose coming from a container of detersive solution, and the final end of main conduit connected to the ejection hose.

Abstract: Dispensing systems and methods for stucco and similar materials. The system comprises a dispensing assembly and a cartridge assembly. The dispensing assembly comprises a piston pushing assembly, an outlet assembly, and a structural assembly for holding the piston pushing assembly in a fixed relationship to the outlet assembly. The cartridge assembly can contain the material to be dispensed and is mounted within the dispensing assembly. Operation of the piston pushing assembly forces stucco or other material to move from the cartridge assembly to a mixing chamber portion defined by the outlet assembly. At the mixing chamber portion, the stucco material is mixed with a stream of pressurized air which carries the mixture out of the system and deposits the material onto a surface to be coated. The system allows substantial control over the manner in which the stucco or other material is sprayed.

Abstract: A modular system for atomizing and delivering liquids to a substrate. The modular system comprises a liquid module, a means for providing an atomizing agent, a nozzle assembly and an actuator which is changeable between a first closed position and a second open position, for selectively allowing the atomizing agent to flow from the means for providing atomizing agent to the atomizing agent channel and for selectively allowing the liquid to flow from the cavity to the liquid delivery nozzle. The modular system atomizes liquids into a narrow distribution of particle sizes without the use of propellants or solvents. The modular system has replaceable liquid and atomizing agent modules. A method for atomizing liquids is also disclosed.

Abstract: A handheld pressurized hopper gun for use in patching acoustic ceilings and repairing cracks and damage in walls and ceilings by applying a texturized sealing compound thereto is disclosed. The pressurized hopper gun is typically employed where plaster walls and ceilings are being refurbished due to damage thereto. The handheld pressurized hopper gun includes a spray gun, a pressurized sealed hopper mounted over the spray gun and containing a sealing compound, and a pressurized air input. The pressurized air input provides low pressure air from an air input housing to an air regulator and the spray gun and to a cock valve and the pressurized sealed hopper. The spray gun has a handle having a first air passage formed therethrough, a movable hollow plunger shaft having a second air passage formed therethrough, a nozzle for seating an end of the hollow plunger shaft and an orifice formed through the nozzle.

Abstract: A spray assembly for mixing catalyst with a high viscosity material and applying thin coatings of that material to a substrate that is particularly useful for applying body putty to a surface. The spray assembly has first and second through air passageways between an inlet end portion and different portions of an outlet end. The through air passageways each have a straight central axis adjacent the outlet end, the extensions of which axes outside the spray nozzle intersect a short distance from the outlet end of the spray nozzle. A large suction tube for the larger first air passageway has an upper end positioned within a cylindrical portion of the first air passageway. Air streams propelled through the passageways draw high viscosity material through the larger suction tube and catalyst through a smaller suction tube into those air streams. Intersection of those air streams outside of the nozzle mixes the catalyst material with the high viscosity material.

Abstract: A method and apparatus for dispensing precise quantities of reagents is disclosed including a positive displacement syringe pump in series with a dispenser, such as an aerosol dispenser or solenoid valve dispenser. The pump is controlled by a stepper motor or the like to provide an incremental quantity or continuous flow of reagent to the dispenser. The pump and dispenser are operated in cooperation with one another such that the quantity and/or flow rate of liquid dispensed by the dispenser can be precisely metered substantially independently of the particular operating parameters of said dispenser to attain a desired flow rate, droplet size or mist quality, droplet frequency and/or droplet velocity.

Abstract: There is provided a liquid atomizing spray gun of the general type that produce single, finite bursts of gas/liquid mixture which overcomes disadvantages of prior designs in that it does not depend for pressurizing and propelling gas on the squeezing of a trigger while aiming the device throughout the spraying stroke and in which a gas compressing piston is not driven by or otherwise directly mechanically linked to a trigger. These and other objectives are achieved in part by providing a spray gun with a chamber containing a gas tight piston that is reciprocable within the chamber, but wherein the piston is not reciprocated by the trigger. Instead, the piston is independently drawn to a rearward position for drawing gas into the chamber through a one way gas intake valve by the creation of a partial vacuum within the chamber. The piston is then released and biased forward to compress the gas within the chamber.

Abstract: A method and apparatus for dispensing precise quantities of reagents is disclosed including a positive displacement syringe pump in series with a dispenser, such as an aerosol dispenser or solenoid valve dispenser. The pump is controlled by a stepper motor or the like to provide an incremental quantity or continuous flow of reagent to the dispenser. The pump and dispenser are operated in cooperation with one another such that the quantity and/or flow rate of liquid dispensed by the dispenser can be precisely metered substantially independently of the particular operating parameters of said dispenser to attain a desired flow rate, droplet size or mist quality, droplet frequency and/or droplet velocity.