Abstract: A spray gun structure that may be controlled to eject water only or a mixture of water and detergent including a handle, a lever, a connecting body, a gun body, a detergent receiving tank, a securing screw sleeve, a retractable connector, and a nozzle. The lever is provided at a bottom portion of the handle for control of water intake. The connecting body is located at a top portion of the handle and extending forwardly and has a water channel a rear end of which is connected to a water conduit inside the lever. The gun body is connected to a rear portion of the connecting body and having a water channel which communicates with the water conduit of the connecting body such that, after the connecting body and the gun body are assembled, the detergent receiving tank may be mounted on a periphery of the assembly. The securing screw sleeve engages threads at a rear end of the gun body. The retractable connector has a hollow interior and an outer periphery fitted in the water channel of the gun body.

Abstract: A spray gun for dispensing two liquids under pressure independently from one another or both simultaneously to form a mixture. The spray gun has a barrel in which are independently displaced two valves which are each spring biased to a closed position. A pair of trigger levers are pivotally secured to a single handle of the spray gun and independently or simultaneously actuable by the fingers of a single hand of the user person whereby to dispense two fluids independently or simultaneously. The valves are mounted coaxially within one another within the barrel of the gun. The valve assembly is easily removed from the barrel of the gun to facilitate servicing and assembly.

Abstract: A soap dispensing shower unit includes a base member which has plural shower head unit supporting members and plural soap container supporting members. Several soap supply containers are held by the soap container supporting members, and plural shower head units are held by the shower head unit supporting members. A soap dispensing shower head is included with the shower unit. This shower head includes a support with a shower head detachably fit to one end and a water supply pipe connector at the other end. A valve arrangement is provided with the support. This valve arrangement includes a soap supply line, a soap valve, a water supply line, a water valve and a junction where the soap supply line and the water supply line merge together. The soap valve and water valve may be selectively activated to supply soap only, water only, or a mixture of soap and water. Liquid soap is fed from the supply container to the soap supply line by a venturi feed arrangement or by a gravity feed arrangement.

Abstract: Apparatus and methods for producing intermittent, discrete patterns of coating material, such as hot melt adhesive, onto discrete substrates or substrate areas, where the patterns have sharp, square leading and trailing edges, as well as side edges. A slot nozzle die has elongated air slots along the slot extrusion opening. In the operation of the apparatus, the air flow is initiated from both air slots prior to the initiation of the hot melt flow. Also, the air flow is continued beyond that point in time, when the hot melt flow ceases. The delays between the operations of the air flow and the hot melt flow are on the order of micro seconds. Coating weights down to 1 gram per square meter at about 350 meters per minute substrate speed are provided. Alternatively, the lead and lag air start and stop times on each side of the coating material are different to control the exact disposition of the square cut-on and square cut-off coating edge on the substrate.

Abstract: Apparatus and methods for producing intermittent, discrete patterns of coating material, such as hot melt adhesive, onto discrete substrates or substrate areas, where the patterns have sharp, square leading and trailing edges, as well as side edges. A slot nozzle die has elongated air slots along the slot extrusion opening. In the operation of the apparatus, the air flow is initiated from both air slots prior to the initiation of the hot melt flow. Also, the air flow is continued beyond that point in time, when the hot melt flow ceases. The delays between the operations of the air flow and the hot melt flow are on the order of micro seconds. Coating weights down to 1 gram per square meter at about 350 meters per minute substrate speed are provided. Alternatively, the lead and lag air start and stop times on each side of the coating material are different to control the exact disposition of the square cut-on and square cut-off coating edge on the substrate.

Abstract: Apparatus for producing intermittent, discrete patterns of foam coating material, onto discrete substrates or substrate areas, where the patterns have sharp, square leading and trailing edges, as well as side edges. A slot nozzle die has elongated air slots along the slot extrusion opening. Air flow is initiated from both air slots prior to the initiation of the foam flow. Also, the air flow is continued beyond that point in time when the foam flow ceases. The delays between the operations of the air flow and the foam coating flow are on the order of micro seconds. Alternatively, the lead and lag air start and stop times on each side of the foam coating material are different to control the exact disposition of the square cut-on and square cut-off coating edge on the substrate.

Abstract: A fuel gas and oxygen mixer for a gas torch comprises a tubular body having a mixing passage extending therethrough and having an upstream end connected to sources of a fuel gas and oxygen and a downstream end for delivering a mixture of the fuel gas and oxygen to a torch tip. The fuel gas is axially supplied to the upstream end of the mixer, and the oxygen flows along the outer surface of the body in the upstream direction from a point adjacent the downstream end of the body and then into the mixing passage through radial ports adjacent to the upstream end of the body. The counter flow of oxygen is through a passageway which provides for cooling of the mixer during normal operation of the torch and for the quenching of reversely flowing hot gases during a back fire.

Abstract: A combination adjustable jet valve for use in a spa, tub or the like, having a valve body and nozzle assembly which can be easily manipulated to adjust the water jet flow, aeration of the water jet and direction of the discharging water jet. A flush mounted control grip on the spa valve body can be rotated to vary the water jet from off to full flow positions. The valve nozzle can be pulled to an on position, allowing the valves venturi effect to draw air into the water flow and aerate the discharging water jet. Alternatively, the nozzle can be pushed into the off position such that air is no longer drawn into the water flow and the discharging water jet is no longer aerated. The nozzle is mounted into a ball socket type arrangement within the valve, allowing directional adjustment of the discharging water jet. Also disclosed is an embodiment where both the water and air are controlled through manipulation of the spa valve nozzle.

Abstract: An apparatus is provided for delivering a combination of gas and liquid. A container provides a liquid admitting cap, a gas admitting port, and a liquid discharging port. A combining assembly has a first chamber in fluid communication with the liquid discharging port, and a second chamber is in fluid communication with the gas admitting port. Both chambers are interconnected through a combining valve. Flexible tubes are included for interconnecting the gas admitting port with the second chamber, and for interconnecting the liquid discharging port with the first chamber, so that the combining assembly may be positioned remotely from the container. A gas pressure controller is interconnected with the gas admitting port for selecting a pressure level of the gas. In operation, the liquid is forced out of the container and into the first chamber by the gas. The relative volume of the liquid flowing into the first chamber to the volume of the gas flowing into the second chamber is determined by the combining valve.

Abstract: A process for homogenizing essentially immiscible liquids for forming an emulsion comprises the steps of (1) guiding an inner phase towards a mixing region under a given high pressure; (2) guiding an outer phase towards the mixing region under a relatively lower pressure; (3) forming jets in the form of thin, flat sheets with the inner and outer phases; (4) colliding the sheets-like jets of the inner and outer phases substantially in a counter-current and thus forming a phase mixture; and (5) subsequently withdrawing the phase mixture from the mixing region. The apparatus includes two oppositely disposed expansion valves through which the respective phases are fed into the mixing region. The expansion valves are formed of flat-conical valve seats and corresponding valve cones. The mixing region is defined centrally between the two expansion valves. The emulsion is withdrawn directly from the mixing region through an outlet valve, in which it may be exposed to further fine mixing.

Abstract: An air supply and control assembly for use with a spray gun comprises an assembly to couple a first source of pressurized air which controls the needle valve of a spray gun to a pilot valve connected to a second source of pressurized air to control delivery thereof to the spray gun atomizing component. The assembly includes a manifold connected by one port to the first source of air, by a second port to components operating the needle valve, and by a third port to a coupling passageway connected to the pilot valve.

Abstract: A spray system is disclosed which includes a spray gun for the hand-operated spraying of fluid material with pressurized air. A spray gun body includes a barrel chamber having an air tube which directs air outwardly through a discharge port with entrained material in a spray. A bistable control valve operates responsive to movement of a trigger for controlling the flow of both air pressure and material into the barrel chamber. The control valve is bistable in its operation to either close the air flow off when the trigger is in its off position or to open the air flow when the trigger is in any of its operating positions. Air tube adjustment means is provided for manually controlling the spray pattern during operation. An electrical control circuit is provided to control a material flow pump responsive to movement of the trigger.

Abstract: An apparatus and method are taught for the acceleration of a propellable matter at selected target matter.

Abstract: A dripless spray nozzle for an intermittent or cyclical spraying operation providing a spray manifold having an inlet port for receiving a pumped material to be sprayed, such as pressurized lube oil, and an inlet port for receiving pressurized air, a mixing chamber for mixing the material and the air, an outlet for conveying the mixture to an attached spray nozzle for spraying an air/material mixture onto an object such as an air/lube oil mixture onto a wheel of a railroad transit car. The spray manifold further comprises a first check valve downstream of the mixing chamber, and a second check valve mounted in the material inlet port. The material to be sprayed is intermittently or cyclically pumped past the second check valve into the mixing chamber. Pressurized air mixes therein with the material and the mixture is sprayed past the first check valve. A reduction in pressure of the pumped material closes the second check valve.

Abstract: An improved plural component dispensing apparatus having a chemical flow stream separator to ensure separation of the isocyanate and polyol plural components is disclosed to permit solventless operation and the cleaning by an aqueous cleaning medium followed by a gaseous drying purge stream to prevent the reaction of water and the isocyanate component.

Abstract: A fuel injection assembly for an internal combustion engine comprises a pair of solenoid valves mounted on a common manifold defining a fuel supply passage which is filled with pressurized fuel at all times during operation of the engine. The solenoid valves discharge into a common chamber having a spray nozzle located at the downstream end thereof. No valve is located between the solenoid valves and the discharge end of the spray nozzle. In use, when the solenoid valves are open, the pressure drop across the solenoid valves is small with substantially the entire pressure drop associated with the assembly occurring across the nozzle. Accordingly a relatively low hold current is required by the solenoid valves.

Abstract: A device for application of a glue strip on a movable paper web by means of at least one glue sprayer for glue under pressure. The device incoporates a valve housing (12) for two diaphragm-magnetic valves (13, 14) or the like, the spring loaded rubber diaphragms (23, 24) of which are provided between one inlet chamber (19, 20) and one outlet channel (21, 22) each, intended for glue and for a rinsing liquid respectively. The outlet channels (21, 22) are interconnected and adapted to open into a common nozzle (31) with a fine outlet opening (32) located at some distance from the paper web (35). The piston (27, 28) of each magnetic valve (13, 14) acting upon the rubber diaphragm (23, 24) has a very short stroke.

Abstract: Method steps for production of substantially uniform size droplets from a flow of liquid include forming the flow of liquid, periodically modulating the momentum of the flow of liquid in the flow direction at controlled frequency, generating a cross flow direction component of momentum and modulation of the cross flow momentum of liquid at substantially the same frequency and phase as the modulation of flow direction momentum, and spraying the so formed modulated flow through a first nozzle outlet to form a desired spray configuration. A second modulated flow through a second nozzle outlet is formed according to the same steps, and the first and second modulated flows impinge upon each other generating a liquid sheet. Nozzle apparatus for modulating each flow includes rotating valving plates interposed in the annular flow of liquid. The plates are formed with radial slots.

Abstract: A method and apparatus for dispensing droplets of molten thermoplastic adhesive onto a moving substrate comprises a spray device having a nozzle formed with a discharge outlet which ejects a continuous stream of molten thermoplastic adhesive. A stitcher device connected to a source of pressurized air is operative to supply intermittent, pulsed jets of atomizing air to air jet bores associated with the nozzle which discharge the pulsed air jets into contact with the exterior of the continuous stream of molten thermoplastic material with sufficient energy to shear well defined globules or droplets from the continuous stream and either allow such droplets to fall onto the substrate under the influence of gravity and due to the momentum of the stream in an essentially straight-line pattern, or to project such droplets onto the substrate to form an essentially random pattern of droplets.

Abstract: A dosage gun includes a housing having a longitudinal bore therein which terminates at one end in an emission nozzle and pressure tanks which hold components of the dosage material. A dosage device is held in the bore and is designed as a nozzle needle for the gun. The dosage device contains a hollow needle and a dosage needle which is arranged in the hollow needle so that co-axial streams of material, one flowing inside the other, are ejected at the emission nozzle. In relation to the hollow needle, the dosage needle is, on the one hand, movable in order to conduct the components of the dosage material to the emission nozzle and, on the other hand, rotatable in order to adjust the amounts fed to the emission nozzle. A mouthpiece is preferably provided on the emission nozzle to form a widened mixing chamber. As a static mixer, the mouthpiece contributes to good thorough mixing.

Abstract: A massage-action shower head comprising a housing provided with a hot water entrance, a plurality of bores through which hot water is showered and a hole through which mixture of hot water and air is jetted, a first passage line formed in said housing and being capable of communicating the hot water entrance with the plural hot water showering bores, a second passage line formed in said housing and being capable of communicating the hot water entrance with the hot water jetting hole, an air introducing means provided in said housing to supply air from outside to said second passage line, and a changeover means provided under water for communicating said hot water entrance with at least one of the first and second passage lines.

Abstract: An apparatus for spraying droplets of molten thermoplastic adhesive comprises a spray device having a nozzle formed with a discharge outlet which ejects a continuous stream of molten thermoplastic adhesive. A stitcher device connected to a source of pressurized air is operative to supply intermittent, pulsed jets of atomizing air to air jet bores associated with the nozzle which discharge the pulsed air jets into contact with the exterior of the continuous stream of molten thermoplastic material forming well defined globules or droplets for deposition onto a substrate.

Abstract: A mixing and dispensing apparatus for mutually reactive chemicals. The apparatus includes a mixing chamber having a core of inexpensive monolithic design with a reciprocal. The core and purging rod are readily detachable as a unit from the remainder of the apparatus. The purging rod does not perform a valving function, and therefore significant compressive force does not need to be maintained on the mixing chamber core. The apparatus includes separate valves for each of the reactive components remote from the mixing chamber bore which are automatically opened after retraction of the purging rod, so that the chemicals are not maintained under pressure adjacent the purging rod. A visible indication of the amount of useful life remaining for the mixing chamber is also provided.

Abstract: A two-component mixing type coating method which is utilized for coating car components, and the like. A main component solution and a hardner solution are run together at an intermediate portion of a supply conduit and are mixed. The mixture solution is sent to a coating spray gun and injected from the gun for coating. The two-component mixing type coating method of the present invention is characterized in that check valves and stop valves are disposed at positions of the flow conduits upstream from the junction, an escape valve is connected to a flow conduit at a portion downstream from the junction, and when the coating spray operation from the coating spray gun is stopped, the escape valve is opened and then the stop valves are closed by control means.

Abstract: A variable colorant blender is provided for use as adjunct to an airbrush (A) or other spray gun. It includes a plurality of metering valves or similar devices which are actuatable wholly independently of one another for enabling the user to obtain and continuously change any colorant blend and also to perform a rapid rinsing. In preferred embodiments electric metering valve actuators are provided, which are energized by electronic circuit means contained in a control box (16) remote from that portion (10) of the blender which is affixed to the airbrush or other spray gun in replacement of the usual colorant-containing vessel 1, such control box having slides (41) for presetting and changing the proportions of colorants in the discharged blend, and possibly also a push-button (42) for controlling the amount of cleaning liquid (solvent).

Abstract: An improved air atomizing spray gun accommodates selective control over flows of air for atomizing liquid coating material into a conically-shaped spray and for forming the spray into a fan-shaped pattern. In one arrangement of the gun structure, respective supplies of atomizing and fan-shaping air are connected to the gun and separately coupled to atomizing and fan air outlet orifices. In another arrangement, only the supply of atomizing air is connected to the gun, and a valve on the gun adjustably diverts a portion of the atomizing air for fan-shaping purposes.

Abstract: The installation comprises a static mixer (1) connected to receive yoghurt from a yoghurt store (4) and a flavoring from a selected flavoring store (8 to 10). The amount of yoghurt and flavoring dispensed is measured by appropriate metering pumps (11 to 14). The static mixer has a bottom outlet (1a) under which a beaker (20) is placed to receive a portion of flavored yoghurt. The beaker stands over a waste funnel (19) to catch drips and spills. A wash tank (22) is provided together with various feeds for rinsing and/or cleaning materials (27 to 28). The wash tank is connected via a pump (33) and a duct (31) to a spray head (34) in the yoghurt store (4). A thorough automatic rinse-wash-rinse cycle can be performed, whenever necessary. The rinse cycles are preferable open circuit cycles, and the wash cycle is preferably a closed circuit cycle.

Abstract: A spotting control and trigger assembly having a first actuator for selecting the flow rate and a second actuator for selecting the mixing ratio of a control element which determines the flow rate and mixing ratio of water to cleaning fluid in a dispensing device. First and second actuators are interconnected to each other and are connected to the mixing and flow rate control by a common linkage.

Abstract: An apparatus (unit A) for completely and uniformly mixing different colored paints from a reservoir (unit B) is constructed from upper and lower sections (9) and (11). Different colored paints from reservoir (unit B) are supplied through lines (15) to inlet passageways (29) and (29c), which are in fluid flow communication with flow control valves (23) and (23c) and with corresponding fluid channels (37) spiraling around a generally frustoconically shaped protrusion (27) extending upwardly from the lower housing section (11). Protrusion (27) snugly engages within a correspondingly shaped cavity (25) formed in upper housing section (9), with the inside surface of the cavity cooperating with channels (37) to form individual passageways that crisscross each other to thoroughly mix the different colored paints carried therein. The passageways terminate at the upper end portion of protrusion (27) to discharge the uniformly mixed-together paint out through an outlet tube (5).

Abstract: In a snow-making installation the pipelines for carrying the pressurized water and compressed air are provided over the entire length thereof with branch conduits for delivering the air and water under controlled conditions to a mixing chamber wherein the air and water are mixed and delivered to the nozzles of snow-making equipment which is permanently installed. The air branch conduit is provided with a selectively actuated valve which is automatically actuated from the control station located down the mountain. A valve positioned in the water branch conduit is activated upon sensing the flow of air in the air branch conduit thereby allowing water to pass to the mixing chamber where it is mixed with the air.

Abstract: An improved nozzle for use with a tub, such as a redwood tub, having a side wall provided with an opening therethrough. The nozzle comprises a nozzle body receivable in the wall opening and having a main water-receiving bore therethrough. A flow control valve is in the main bore and is manually adjustable at the outlet end of the main bore. The nozzle body has a secondary bore provided with a one-way check valve therein. The secondary bore communicates with the main bore to allow air to pass into the water by suction to aerate the water as it flows into the tub. A flow regulator member is adjustably mounted on the nozzle body near the outlet end of the main bore for controlling the flow of air into the water flow. Several embodiments of the check valve are disclosed.

Abstract: A system and method of operating for mixing and dispensing two liquid components, characterized in that each component is chemically stable when maintained in isolation and chemically reactive when combined with the other component. The system includes separate liquid storage containers and pumps for delivering each of the liquids through a common mixing manifold, and from there to a dispensing apparatus, the system including a further pump in one of the containers for delivering liquid through a valved, closed loop subsystem back to the container, the closed loop having therein an entry point for connection to the dispensing apparatus, and the system including a further valve for controlling the flow of the other liquid component to the dispensing apparatus, whereby the conduits leading to the dispensing apparatus may be purged of mixed liquid components, diluted, and returned to the one storage container.

Abstract: An adjustable slotted orifice assembly for controlling the feed rate and dispersion pattern of high pressure impinging liquid reaction injection molding materials. In a preferred embodiment vibration of the variable orifice, opening particularly useful with low through puts, provides improved results.

Abstract: A collecting assembly for removing liquid vapors and particulates from a dirty gas stream including a housing having a dirty gas inlet and a clean gas outlet, a gas treating passage extending through the housing interconnecting the gas inlet and the gas outlet, a blower or fan adapted to draw the dirty gas stream into the housing through the gas inlet where it flows through an electrostatic precipitating section, and an oil spraying or fogging assembly adapted to periodically spray an atomized oil mist onto the discharge and collecting plates of an electrostatic collecting assembly mounted in the precipitating section to irrigate and wash accumulated particulates off the plates while continuing gas cleaning operations.

Abstract: An improved method and apparatus for producing a dispersion of substantially immiscible liquids which employs a conduit having an upstream section divided into first and second channels of variable length and a downstream section for mixing the liquids. The apparatus also includes means for varying the length of the first and second channels and means for flowing the liquids separately through the channels whereby the liquids mix in the downstream section of the conduit to form the dispersion. In accordance with one embodiment, a conventional mixer-settler is modified to include the conduit mounted at an upstream end of the settling chamber so that its inlet is adjacent the mixing chamber and its outlet is approximately at the same height as the organic-aqueous interface in the settling chamber.

Abstract: An improved valve, and assembly incorporating the valve, which finds particular use in welding and cutting torch control applications. The valve comprises a quick, slide-actuated, on-off control which dispenses with the need to adjust the flow of gases to the torch each time flame start-up is required. The valve also incorporates a variable pilot setting which includes an easily-manipulated cam-adjustment.

Abstract: A carbon black feedstock nozzle in which a central pipe with a diverging nozzle outlet is surrounded by at least one concentric annulus having a diverging nozzle outlet with a spray angle different from that of the central pipe and with means for supplying a separate controlled flow of inlet material to the central pipe and concentric annulus. In the preferred embodiment multiple concentric annuli surround the central pipe with the outermost annulus supplied with a coolant fluid as inlet material, and the other annuli supplied with hydrocarbon suitable as carbon black reactor feedstock. In a preferred embodiment means are provided for a seriatim cycling of flow through the various hydrocarbon feedstock annuli. A carbon black reactor in which a feedstock nozzle as described above discharges in a portion of the reactor that is either a precombustion section or a combustion section.

Abstract: A burner for producing synthesis gas, fuel gas or reducing gas from slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbon fuel. The burner has a high turndown feature and comprises a central conduit; a central bunch of parallel tubes that extend longitudinally through said central conduit; an outer conduit coaxial with said central conduit and forming an annular passage therewith; and an annular bunch of parallel tubes that extend longitudinally through said annular passage; and wherein the downstream ends of said central and annular bunches of parallel tubes are respectively retracted upstream from the burner face a distance of about 0 to 12 i.e. 3 to 10 times the minimum diameter of the central exit orifice and the minimum width of the annular exit orifice. Three ranges of flow through the burner may be obtained by using one or both bunches of tubes and their surrounding conduits. Throughput levels may be rapidly changed--up and down--without sacrificing stable operation.

Abstract: An improvement in an on-site foam generating apparatus which includes storage tanks for supplying the foam-forming reactants, a mixing chamber, and means for conveying the reactants through the mixing chamber. The improvement comprises means for cleaning the mixing chamber including a solvent storage tank and means for recovering the solvent within the apparatus and recycling the solvent through the chamber.

Abstract: When burning black liquor obtained during cellulose pulp manufacture it is desirable to maintain a constant atomizing pressure. Mere throttling of the liquor supply in order to adjust the combustion to actual heat demand will alter the spray pattern. A pressurized gaseous fluid is injected into the liquor supply conduit, and the amount of this gaseous fluid is governed in response to the actual heat demand. A monitoring device senses the pressure in the supply conduit downstream of the throttle valve, and adjusts the position of the latter in response to the activity caused by the gaseous fluid, so the resulting pressure is maintained at the desired level.

Abstract: A portable hand-held oxypropane torch comprising a generally rectangular carrier member supporting an oxygen valve and a propane valve and having an integral handle connected thereto. The oxygen valve is connected in fluid communication to a nozzle conduit. The propane valve is connected to a propane conduit which is connected in gaseous fluid communication with said nozzle downstream from the point where the oxygen valve is connected to the nozzle conduit. The nozzle conduit has a downwardly inclined end portion terminating in a nozzle.

Abstract: A non-clogging check valve assembly useful in the simultaneous dispensing of individual components of a two-part grouting material. Two opposed flexible outlet nozzles mounted adjacent one another in a body member allow the components to be dispensed in a mixing relationship. The outlet nozzles are dome-shaped and contain slot-like apertures to allow the dispensing of the components under pressure and to prevent the clogging re-entry of the components into the valve which would otherwise result from back pressures developed as the components combine and react.

Abstract: A dual manifold propellant injector having at least four distinct platelets in its configuration. The first two platelets constituting the primary and secondary fuel platelets; the third and fourth platelets constituting the primary and secondary oxidizer platelets. By proper valve throttling, the injector is capable of providing homogeneous, intimately mixed propellants at all thrust levels.

Abstract: An airbrush includes a body at the forward end of the airbrush and a plume at the rear end, the plume being for balancing the airbrush and supporting it in the user's hand. A source of fluid is included in the airbrush to be dispersed therefrom, and a needle valve through which fluid from the source flows is mounted on the body portion and the source of fluid is also connected to the needle valve. Air in an air passage passes over the needle valve to create a partial vacuum thereover to draw fluid from the source of fluid out of the needle valve and into the stream of air and out of the airbrush. An air valve on the body portion controls the flow of air through the air passage. An air supply provides air to the air passage from a source of air, and the air supply is mounted to the air passage on the plume so that the air valve is spaced from the air supply mounting to minimize the distance from the air valve to the needle valve to decrease the pressure drop between them.

Abstract: A fluid mixing apparatus for association with an air atomizing spray gun is disclosed. The fluid mixing apparatus comprises a fluid manifold adapted for attachment to the handle of an air atomizing spray gun and includes static mixer means interconnecting the fluid manifold with the spray fluid inlet of the air atomizing spray gun. The fluid manifold comprises a fluid passage means interconnecting a plurality of inlet ports and communicating with an exit port which is connected to the static mixture means. The individual components of a multiple component sprayable fluid are separately introduced into the manifold through individual ones of the manifold inlet passages and are flowed through the manifold passage to be intimately intermixed by the static mixer means prior to being introduced into the sprayable fluid inlet port of the air atomizing spray gun.

Abstract: A safety double injector spray device or torch is provided for applying a spray coating to a substrate comprising, a torch body having a torch head at the end thereof, an oxygen duct and a fuel gas duct associated with said spray device and coupled to a first injector means for mixing oxygen and fuel gas therein, a fuel gas-oxygen mixing duct located forward of and coupled to said first injector means, a carrier gas duct associated with said spray device coupled to a second injector means for mixing spray powder with carrier gas fed to said duct, a carrier gas-spray powder mixing duct located forward of said second injector means, spray powder feeding means coupled to said torch body and communicating in powder feeding relationship with said carrier gas duct, and means forward of said first and said second injector means coupling said carrier gas-spray powder mixing duct and said fuel-gas oxygen mixing duct to said torch head.

Abstract: A method and applicator is disclosed for producing cleaning foam. The applicator includes a housing which defines a diffusion chamber having an inlet and an outlet end. First and second inlets are peripherally located in the housing adjacent its inlet end and are in fluid communication with the diffusion chamber. These first and second inlets include flow regulators or valves for individually adjusting the rate of flow of pressurized cleaning liquid and pressurized air are continuously introduced therethrough during operation into the diffusion chamber. Upon passing through the inlets, the pressurized liquid and air flow through a diffusion means which is contained within the diffusion chamber. As the liquid and air pass through the diffusion means, the air is mixed with and entrained in the liquid and foaming occurs. Subsequently, the foam passes into a reduction chamber disposed adjacent the outlet end of the applicator.

Abstract: A gating arrangement for use in moulding plastics, particular foam plastics, formed from a plurality of fluid constituents comprises a plurality of nozzles for delivering the constituents under pressure into a mixing chamber. A nozzle needle is associated with each nozzle and is movable between positions which close and open the nozzles. The nozzle needles are moved from the closing position into the opening position by the pressure of the fluid constituents. A hydraulic piston is associated with each nozzle needle for retaining each nozzle needle in a definite position.