Abstract: The present invention is "A LIQUID/FOAM/MIXING/AERATION ADAPTER APPARATUS" which is substantially made from an elongated flexible member (which forms a mixing chamber therein) having first and second open ends, with the first end being frictionally attachable to a nozzle and the second end containing an insert for expelling a liquid/foam/air solution therefrom. The member further includes at least two angular cavities which are in open communication with the mixing chamber for aeration and each cavity is of a size and shape to recieve therein a unique adjustable aeration device.

Abstract: A two component external mix spray gun having a pneumatically operated valve for controlling the injection of a catalyst into pattern shaping air passages in the gun. The catalyst is contacted with the atomized fluid externally to the spray gun. A trigger sequentially operates air and fluid valves to provide atomization air and pattern shaping air prior to opening the fluid valve. The pneumatic catalyst valve is responsive to an increase in the air pressure downstream from the air valve to inject the catalyst into the pattern shaping air prior to the opening of the fluid valve. The catalyst impinges on the atomized fluid eternally to the spray gun along with the pattern shaping air. The invention may be incorporated in either a hand held spray gun with a manual trigger or an automatic spray gun with a controller.

Abstract: A device for linear spraying of a liquid includes a series of tubes (3.sub.1) which supply liquid from a supply pipe (4) to an elongated spray nozzle (7) in the wall of a chamber (1) and a pipe (2) for delivering gas to the chamber to drive the liquid out of the enclosure. An elongate element (5) is provided in the enclosure to receive the liquid from the feed means. The liquid is spread over a convex surface (5.sub.1) of the element and is then carried off by the gas and flows to two elongate slits (8.sub.1,8.sub.2) adjacent to the nozzle (7) and converging towards the latter. The width of these slits varies periodically and interdependently over their length to form two sheets of the liquid/gas mixture which come together at the nozzle (7) to form at its outlet a mist of liquid confined within an angle (.alpha.) from the nozzle.

Abstract: To ensure the effective recovery of the condensate from steam-using apparatus, together with leaked steam from the trap and residual air in the piping, a condensate recovering vacuum pump is equipped with a jet pump comprising a vacuum chamber into which a condensate inlet port opens, a convergent cylindrical segment opening into the vacuum chamber and having a constricting cross-sectional area, a throat segment adjoining the convergent cylindrical segment and having a substantially uniform cross-sectional area, a divergent segment flaring from the throat segment, and a nozzle having an orifice at the tip thereof that protrudes somewhat into the convergent cylindrical segment from the side of the vacuum chamber, with the inside wall of the tip of the nozzle flaring so that a jet stream expelled therefrom diverges toward the internal surface thereof near the rear end of the throat segment. The jet pump is disposed so that the feedwater ejected therefrom issues forth upward.

Abstract: A reverse pulse cleaning system for use in a bag house filter including a blow tube (2) having outlet holes (3) to direct high velocity air pulses into filter bags to be cleaned. The systems includes a nozzle (1) having a control formation between the inlet and outlet ends of the nozzle. The control formation determines air flow characteristics such as velocity and direction of flow emerging from the outlet holes (3) and can improve uniformity and effectiveness of filter bag cleaning. A clampable and releasable fixing of the nozzle (1) to the blow tube allows replacement of the control formation with one of different characteristics during manufacturing or insitu fine tuning. The fixing allows the precise alignment of nozzles (1) on assembly which reduces the need for costly precision in forming the blow tube outlet holes (3).

Abstract: A venturi nozzle for high entrainment vacuum use for random orbital sander dust collection having a nozzle design which improves the nozzle jet to promote a uniform velocity profile across the diameter of the jet nozzle as well as a thin shear layer by providing a shallow angle nozzle approach, a smooth transition flow into the nozzle throat and an accurate nozzle departure radius.

Abstract: An air aspirating nozzle for propelling a stream of foam or a slurry of solid particulates to a target surface includes a stream shaping member within the nozzle to form a rotating, columnar stream of liquid and air that maintains a high degree of coherence over a considerable throw distance. The stream shaping member includes a cylindrical body portion held axially in place within the nozzle body by a plurality of vanes extending between the body portion and the inner nozzle wall. The vanes are arranged in a forward-raked attitude, and the vane surfaces are configured to impart a rotation to a fluid column passing through the nozzle.

Abstract: A soft drink dispensing head capable of rapidly dispensing soft drinks with minimized foaming action includes a housing connected to a source of soda and a source of syrup, a diffuser within the housing, and a plurality of passages disposed below the diffuser. The source of soda delivers a supply of soda to the diffuser which causes the direction of the soda flow to be changed 180 degrees. The soda then falls over the diffuser and through a plurality of dispensing passages exiting the housing in a free falling stream. The soda and syrup are dispensed separate from each other and allowed to mix external to the dispensing head but before colliding with a cup located beneath the dispensing head. The source of syrup is in fluid communication with a groove that encircles a portion of the housing. A plurality of syrup dispensing ducts are in fluid communication with the groove and are configured such that each centerline of each duct intersects the free falling stream of soda.

Abstract: An atomizer for atomizing a high solids soil paste containing pebbles or agglomerates includes an inner conduit for channeling the paste and an outer conduit surrounding the inner conduit whereby the outer conduit and the inner conduit define an annular space therebetween in which a flow of compressed air is channeled in the space. The inner conduit and the outer conduit have a discharge end which is connected to a discharge spraying head made of a wear-resistant and a high temperature-resistant material such as tungsten carbide. The spraying head has three walls which accommodate a flow plate which is connected at the top of the first wall and third wall for defining a rectangular opening of the spraying head. The flow plate has two air passages cut therethrough, which are also rectangular, which channel air from the annular space into the spraying head for dispersing the soil paste into an atomized spray which is discharged out of the opening.

Abstract: A torch includes a sheath enclosing various feed streams for active cutting fluids and cooling fluid, terminated by a distribution unit in which a cutting head is removably mounted. The cutting head includes a heating unit provided with channels for ejection of a combustible oxygen mixture, an intermediate insert forming the ejection nozzle for gaseous shielding oxygen, and a central insert for ejection of liquid oxygen under pressure.

Abstract: An air/liquid polymeric latex foam coating generator includes a static splash plate mixer for forming a coarse foam coating and a conventional static refining mixer which further refines and homogenizes the coarse foam produced by the static splash plate mixer before delivering a refined foam to application heads or nozzles for application to a workpiece. The static splash plate mixer comprises a housing which is divided into two chambers by a splash plate. A stream of pressurized air and a stream of pressurized polymeric latex coating material are introduced into the upstream chamber where the streams intersect each other, impinge upon the splash plate and are mixed into a coarse foam in the upstream chamber. The foam passes through openings in the splash plate to the downstream chamber where the foam is further refine before being discharged from the static splash plate mixer.

Abstract: A plurality of relatively high pressure, but low velocity, liquid entry streams, that may be of different pressures and flow rates, are directly combined to form a single exit stream of higher velocity but lower pressure by merging the streams in a waterway having an elongated, generally ovoid shape. The entering streams are arranged in an equi-spaced relationship about the longitudinal axis of the waterway, and the cross-section of each entering stream is configured as an ellipse that is oriented with the major ellipse axis generally parallel to the waterway longitudinal axis, but offset therefrom by a small angle. The entering streams mesh and rotate within the waterway to form a unified exit stream.

Abstract: A method and apparatus are disclosed for capturing coating debris during laser ablation of a photoreceptor comprising: (a) enclosing a predetermined length of a coated substrate in a housing to result in an enclosed coated substrate portion, wherein there exists a gap between the enclosed substrate portion and the housing in communication with air outside the housing; (b) directing high energy radiation at the coating of the enclosed substrate portion; (c) directing a first fluid stream against the coating of the enclosed substrate portion to remove at least part of the coating in the form of coating debris during or subsequent to (b), whereby the first fluid stream may move a portion of the coating debris outside the housing in the absence of (d); (d) directing a second fluid stream against the first fluid stream in a direction effective for keeping the coating debris inside the housing, thereby minimizing movement of the coating debris into the air outside the housing; and (e) exhausting the coating debris.

Abstract: The present invention is directed to a nebulizer for use in an atomic absorption system which includes a capillary assembly having a capillary holder having an internal axial passage therethrough, a sapphire capillary tip mounted on one end of the capillary holder and the other end of the holder being connected to a sample liquid source through a capillary gland nut assembly. A venturi member is provided which has an inlet portion, a throat portion and an exiting bell shaped portion. A body assembly has one end connected to the venturi member. The capillary assembly is mounted on the body assembly for axial movement so that the capillary holder partially enters the venturi inlet portion and the capillary tip enters the venturi throat. Compressed oxidant is supplied to the venturi member in the vicinity of the capillary tip so as to suck sample liquid from the capillary tip to form a mixture of fine liquid mist and gas which is discharged through the exiting bell shaped portion.

Abstract: A method and apparatus are disclosed for capturing coating debris during laser ablation of a photoreceptor comprising: (a) enclosing a predetermined length of a coated substrate in a housing to result in an enclosed coated substrate portion, wherein there exists a gap between the enclosed substrate portion and the housing in communication with air outside the housing; (b) directing high energy radiation at the coating of the enclosed substrate portion; (c) directing a first fluid stream against the coating of the enclosed substrate portion to remove at least part of the coating in the form of coating debris during or subsequent to (b), whereby the first fluid stream may move a portion of the coating debris outside the housing in the absence of (d); (d) directing an annularly-shaped second fluid stream against the first fluid stream in a direction effective for keeping the coating debris inside the housing, thereby minimizing movement of the coating debris into the air outside the housing; and (e) exhausting t

Abstract: A fluid applicator having a multi-zone noncontacting die set for dispensing a selected plurality of thin flat fiberized adhesive streams as uniform rectangular strips of adhesive on a substrate. The die set uses shims to establish the fiberizing air slot, and the adhesive dispensing and fiberizing air shims have tapered tabs to provide improved coating edge control. The fiberizing air die also has simplified fiberizing air flow, and the die set includes a mechanism for clamping the die set together which is especially suited for a multi-zone die set. The fluid applicator includes a manifold heater with a simplified and improved air flow, and a universal adhesive manifold.

Abstract: Apparatus and methods 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 side injection plural component spray gun having one or more injector assemblies mounted for injecting a catalyst into a main component at the most forward position of the spray gun. In one embodiment, the injecting assembly has an injection jet connected to the air path for injecting a catalyst into the air stream just before it exits a port for shaping the main component into a fan shaped pattern. The injection jet is constructed to minimize adverse effects on the air stream for shaping the spray pattern. In a second embodiment, dual injection assemblies inject catalyst for delivery through both shaping air ports on either side of the fan shaped pattern of the main component or allows injection of a third component. These embodiments minimize the build-up of catalyst on the walls and passageways of the spray gun minimizing the need for maintenance of the gun and preventing clogging and corrosion of passageways.

Abstract: A frictional electrification gun for use in electrostatic painting which can electrostatically charge power paint to a sufficient degree without the need of an elongated and twisted charging portion made up of nonconductive resin tubes. At the inlet of the charging portion made up of nonconductive resin tubes is provided a pre-charging portion for dispersing and charging powder paint. It has a nonconductive resin ring through which powder paint is fed swirling along its inner surface. The paint is thus sufficiently charged.

Abstract: An atomizer for an oil burner. One line supplies liquid fuel and another line supplies atomization fluid to a mixing chamber. The mixing chamber is accommodated in a nozzle and provided with outlet bores. A bore that communicates with the atomization-fluid supply line slopes through the nozzle and into each outlet bore.

Abstract: An air aspirating nozzle for propelling a stream of foam or a slurry of solid particulates to a target surface includes a stream shaping member within the nozzle to form a rotating, columnar stream of liquid and air which maintains a high degree of coherence over a considerable throw distance. The nozzle assembly may include a flow control unit for the introduction of a foam concentrate or a fluid suspension of particulate solids into the nozzle.

Abstract: A steam injector includes a casing having water supply port and a steam intake port, the casing being generally composed of two halves fastened integrally, a water nozzle and a steam nozzle both disposed in the casing and communicated with the water supply port and the steam intake port, respectively, a steam-water mixing nozzle disposed on the downstream side in the casing and a diffuser disposed further downstream side in the casing. The steam injector further includes a guide member such as guide vane or spacer ring for guiding the steam to the steam-water mixing nozzle. The steam injector may includes a needle valve disposed in a steam jetting nozzle, disposed axially in the central portion of the casing, which is provided with a heat transfer preventing structure such as hollow wall structure provided on the outer peripheral surface of the steam jetting nozzle.

Abstract: Impinging fluid jet streams are used in a continuous crystallization process to achieve high intensity micromixing of fluids so as to form a homogeneous composition prior to the start of nucleation. This process permits direct crystallization of high surface area particles of high purity and stability.

Abstract: An atomizer for slurry fuel which provides improved assembly thereof and improves the atomization of fuel and provides improved wear resistance. The atomizer for slurry fuel comprises an intermediate member, a slurry fuel passage and a gas passage respectively integrally formed of ceramic, and a mixing chamber being provided at the upstream side of a fuel jet port for mixing slurry fuel with gas, the intermediate member being fixed to a fuel supply body by a cap together with a steam cap and a fixed ring formed of ceramic, respectively and a set bolt fixing a target formed of ceramic to the intermediate member by penetrating a target support member and being retained to a strut wall by a lock nut.

Abstract: A plural component external mix air-assisted/airless spray gun has an airless tip from which resin is emitted in a fan-shaped spray and an injector nozzle for directing an unatomized stream of catalyst into the resin adjacent to the airless tip. The catalyst injector nozzle is built into an ear of an air cap and the air cap is keyed to the airless tip to guarantee the positional relationship between the injector nozzle and the airless tip. Injecting a stream of unatomized catalyst into the resin stream immediately downstream from the airless tip provides thorough mixing of the catalyst into the resin, increased utilization of the catalyst and decreased emissions of catalyst fumes.

Abstract: A fuel collision surface 40 is provided so as to be spaced from and axially opposite to a fuel injection port 14. A ratio of a width of the fuel collision surface 40 to a diameter of the fuel injection port 14 is set in the range of 0.2-0.3 so that fuel flows in a membrane-like pattern in branch ports 34 without attaching to the branch port surfaces and is effectively atomized. Further, it is desirable that an angle defined between an air injection passage 36 and a fuel injection valve axis is set in the range of 45.degree.-75.degree. so that a good air atomization due to air injection is obtained.

Abstract: An impinging jet mixer 40 includes a central atomizer 42 for providing a conical fuel stream 50 and means 56, 58 for providing a plurality of intersecting gas jets 62, 66 which meet the conical fuel spray 50 at an interaction zone 64 spaced downstream of the atomizer discharge opening 70.

Abstract: A fluid jet system includes a nozzle body which has an axis. A nozzle is adjustably mounted within the nozzle body for dispersing fluid along a centerline. A first adjustment device adjusts the orientation of the nozzle relative to the nozzle body. A focusing tube is included. A second adjustment device positions the focusing tube, relative to the nozzle body, into alignment with the nozzle. One embodiment permits continual alignment of the focusing tube relative to the nozzle as the second adjustment device is being adjusted.

Abstract: An air brush is shown and described having separate gas delivery and media delivery portions whereby different media delivery portions may be provided with alternate media or media colors and selectively mounted upon the gas delivery portion. The media delivery portion includes an airless media sack which collapses upon delivery of media from the media delivery portion. By separating the gas delivery and media portions in the manner of the present invention, a user can quickly switch between media or media color without an intermediate cleaning step. The air brush of the present invention further provides freedom of spray direction including horizontal and vertical spraying. Both artistic and medical uses of the air brush are illustrated.

Abstract: A method of applying a quick setting spray material is disclosed, wherein a cement-containing principal composition is supplied into a feed pipe and sprayed through a nozzle and an aqueous solution of a (meth)acrylate as a set accelerating agent is supplied into the principal composition at a linear speed of 0.5 to 50 m/sec through at least two supply pipes that are connected to the feed pipe in a position within one meter behind the tip of the nozzle in such a manner that extended axes of the supply pipes cross each other within the feed pipe and wherein the at least two supply pipes form a supply angle of 30 to 90 degrees with respect to the direction at which the principal composition flows, whereafter the principal composition and the set accelerating agent are jetted from the nozzle.

Abstract: High pressure atomizing nozzle includes a high pressure gas manifold having a divergent expansion chamber between a gas inlet and arcuate manifold segment to minimize standing shock wave patterns in the manifold and thereby improve filling of the manifold with high pressure gas for improved melt atomization. The atomizing nozzle is especially useful in atomizing rare earth-transition metal alloys to form fine powder particles wherein a majority of the powder particles exhibit particle sizes having near-optimum magnetic properties.

Abstract: Apparatus for dispensing a fine spray of liquid particles comprises a manually operated pump connected to supply air under pressure directly to a nozzle so positioned that air leaving the nozzle is directed onto and over the nib of a pen releasably supported within a holder with the pen nib in close proximity with the nozzle outlet to cause liquid from the pen to be dispensed as a fine particulate spray in air.

Abstract: Disclosed are a fuel spraying method in a liquid fuel combustion burner for spraying a liquid fuel together with an atomization-promoting fluid mixed in the fuel, and a liquid fuel combustion burner, in which the liquid fuel is mixed with the atomization-promoting fluid while turning the liquid fuel in flow passages of injection holes, and streams injected from the injection holes are caused to impinge against one another in the presence of combustion air in a combustion apparatus. According to this fuel spraying method and this liquid fuel combustion burner, the atomization of the liquid fuel is promoted and the flame is dispersed while promoting the contact with air, and it therefore becomes possible to simultaneously control generation of NO.sub.x and generation of soot.

Abstract: A fuel supply device comprising a pressurized air passage, a nozzle opening formed at a tip end of the pressurized air passage to inject fuel and pressurized air, a valve for opening or closing the nozzle opening, a fuel injector for injecting fuel in the pressurized air passage, and a guide member arranged in the pressurized air passage between the nozzle opening and the fuel injector. The guide member has a least three contacting faces which are in contact with a cylindrical inner wall of the pressurized air passage, and at least three substantially flat faces each extending approximately in a straight line between the contacting faces which are located on each side of the flat face to form a narrow passage between the cylindrical inner wall of the pressurized air passage and the flat face.

Abstract: The present invention is a premixing-type spray gun which mixes a paint and compressed air inside the atomizing head and blows out the mixture as atomized from the spray hole. The inner and outer surfaces of the center hole in the atomizing head of the spray gun body are conical, and there is formed at the center of the cap having a nearly concentrical thickness at a lip-like aperture by providing a generally V-shaped recess from outside. Paint can be sprayed under a pressue of less than 1 kgf/cm.sup.2 with which the paint is less scattered, and the sprayed particle sizes can be made fine as with the conventional air spray guns.

Abstract: Disclosed is a liquid spraying method in a liquid combustion burner, in which a liquid fuel is sprayed together with an atomization-promoting fluid mixed into the liquid fuel, and also a liquid fuel combustion burner is disclosed. In this liquid fuel spraying method and this liquid fuel combustion burner, only the liquid fuel is turned while the atomization-promoting fluid is not turned, whereby the frictional energy between the atomization-promoting fluid and the liquid fuel is reduced and hence, formation of NO.sub.x is controlled.

Abstract: An apparatus for dispensing at least two liquid compositions, one as a wet spray and one as an aerosol spray comprising at least two liquid supply reservoirs, an air supply for pressurizing the reservoirs, and individual capilliary tubes connecting the reservoirs and a pressurized air source to a dispensing wand. The wand comprises a solid handle with ducts therein connected at one end to one of the capilliary tubes, each duct provided with a suitable valve for controlling fluid flow therethrough. A tube is attached at the opposite end of the handle with capilliary tubes therein attached to the liquid ducts passing therethrough to a nozzle head attached to the opposite end of the tube. The nozzle head is provided with a nozzle to dispense a liquid in the form of a wet spray and a nozzle to dispense a liquid as an aerosol spray with pressurized air passing therethrough and mixing with the liquid to provide the aerosol spray.

Abstract: Atomizer for viscous fuels formed by a first and a second mixing chamber arranged along a common longitudinal axis, the second chamber being formed by a cylindrical portion and two consecutive frustoconical portions on the conical walls of which two rows of orifices are placed for the inlet for the atomized fuel into the combustion chamber. The orifices are arranged according to two circumferences and have axes orthogonal to the conical walls on which they are placed, axes which meet inside the second mixing chamber at a point on the longitudinal axis. The orifices are equally angularly spaced and radially aligned. The angle between the axes of two orifices symmetrical with respect to the longitudinal axis of the outer row is comprised between 80.degree. and 120.degree., while the difference between this angle and the corresponding angle formed by the axes of the two symmetrical orifices of the inner row is not less than 20.degree..

Abstract: An atomizer for discharging a jet of one fluid in another fluid, comprises a nozzle head having at least one nozzle hole therein for discharging the jet. The nozzle hole has an inwardly tapering inlet end and an outwardly tapering outlet end for reducing recirculation and wetting at the exit of the hole. The outlet end tapers at an angle of no greater than 14.degree. and the inlet end is advantageously curved at a radius which is from 2 to 10 times the diameter of the inlet end. The diameter inlet end should also be from 1 to 5 times the length of the hole.

Abstract: High pressure atomizing nozzle includes a high pressure gas manifold having a divergent expansion chamber between a gas inlet and arcuate manifold segment to minimize standing shock wave patterns in the manifold and thereby improve filling of the manifold with high pressure gas for improved melt atomization. The atomizing nozzle is especially useful in atomizing rare earth-transition metal alloys to form fine powder particles wherein a majority of the powder particles exhibit particle sizes having near-optimum magnetic properties.

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: An assembly for dispensing a liquid composition in spray form including a wand section wherein fluid is transported through a capillary tube disposed within an outer tube, pressurized air being transported between the inside diameter of the outer tube and the outside diameter of the capillary tube. Both the outer tube and capillary tube connect with a common mixing chamber wherein the pressurized air and liquid is mixed, this mixture being expelled through a nozzle as an aerosol spray.

Abstract: A printing press dampener includes an elongated body member having a first and second passage provided therein. The first passage is connected to a supply of dampening fluid and the second passage is connected to a supply of pressurized gas. A plurality of chambers disposed along the length of the elongated body are in communication with both the first and the second passages. Fluid and gas run within these chambers. A plurality of spray nozzles, one in communication with each of the chambers, are positioned to spray dampening fluid against the dampener of the offset printing press.

Abstract: The invention relates to a method and apparatus for cleaning stone and metal surfaces by means of a cleaning jet consisting of water, a proportion of air substantially higher by volume and sharp-edged blast material particles. The jet generated in a chamber is set in a rotation such that jointly with the expansion of the air contained therein said jet comprises a relatively wide conical cross-section. This jet permits careful but thorough cleaning of stone and metal surfaces.

Abstract: A fuel injector comprising a pair of air passages which are joined at the nozzle opening, whereby fuel injected from the fuel supply bore is joined with the airstreams flowing in the air passages. At this time, the fuel is carried by the airstreams and thus flows through the air passages at a high speed, and accordingly, the fuel is caused to impinge against the inner wall of the nozzle opening at a high speed.

Abstract: A cutting head for a water jet cutting machine has a body removably supporting a holder with an orifice element, and insert with a chamber, and a nozzle having a passage in alignment with the water flow path through the head. The holder has a cone shaped surface that fits into a complimentary shaped cone recess to align the aperture of the orifice element with the axis of a water inlet chamber. The insert is retained within a transverse bore in the body to align its chamber with the axis of the aperture. A griping collet holds the nozzle on the body and aligns the passage of the nozzle with the axis of the aperture so that aperture, insert chamber, and the passage of the nozzle are linearly aligned with each other to form the water flow path through the nozzle.

Abstract: A method and apparatus for making snow by discharging a water spray at high velosity from a first nozzle positioned adjacent the top of a tower into a freezing ambient atmosphere and further discharging a jet stream of air under pressure into the throat of the water spray thereby forming a plume of atomized water. The efficiency and capabilities of snow making are enhanced by further discharging water under pressure into the atmosphere through at least one additional nozzle, positioned adjacent to the first nozzle, in the form of an additional spray which is directed into the plume. The additional nozzle may be above, below or beside the first nozzle and if two or more of the additional nozzles are provided, they may be positioned on the same side or on opposite sides of the first nozzle, and the supply of water delivered to the discharge nozzles need not be regulated for varying subfreezing temperatures.

Abstract: A powder spray gun comrpises a tubular housing having ambient air flow passages located in the side wall thereof medially of the opposite ends. A pair of air flow amplifiers are mounted in the housing on opposite sides of the ambient air flow passages and are so oriented that compressed air supplied to the upstream one of these amplifiers, the so called suspension amplifier, is operable to draw ambient air into the outlet end of the suspension amplifier, and compressed air supplied to the downstream amplifier, the so called pattern amplifier, is operable to draw ambient air into the inlet end of the pattern amplifier. The amplifiers are secured within the housing by end caps which are sealingly secured onto the ends of the housing by bayonet pin and slot connectors.

Abstract: A binary atomizing flat-jet nozzle with rectangle characteristic comprises a mixing head forming a mixing chamber with two mutually orthogonal connectors for a gaseous and a liquid medium, further a preferably tubular connector connecting to those connectors and a snout forming the slitted nozzle discharge. A metering inset with a cylindrical blind bore is mounted in the second connector supplying the liquid, the blind bore issuing inside the mixing chamber bilaterally into cross-bores. The snout comprises an offset bore with arched bottom. A baffle with a sharp-edged central transmission aperture rests on the bore offset and comprises an inside diameter less than the diameter of the offset snout bore. A nozzle with the above features is characterized by its simple design, easy manufacture and very uniform liquid distribution (so-called rectangle characteristic).

Abstract: The pressure chamber has a nozzle (10) with the outlet orifice communicating with a hole (16) surrounding the nipple such that it forms an annular gap (25) through which the steam issues to thereby sweep the liquid which issues through the nipple. According to the invention, the end (22) of the nipple has a guiding surface (26) leading the liquid which issues through its orifice towards the annular gap (25) to improve its sweeping by the steam. The improvements include a configuration (7, 17, 20) for an exact centering of the nipple (18) as regards the hole (16) of the nozzle (10), for example an intermediate portion of a through hole (6;6a . . . 6d) receiving it, with respective cylindrical surfaces (20, 17) of the nipple (18) and the nozzle (10) fitting with the ends of the intermediate portion. The injector is preferentially applicable to machines for continuous treatment of sheet materials, for example fabrics.