Abstract: A rotary atomizer having a low capacitance, cup-shaped, atomizing head mounted for rotation about an axis of rotation has a coating material flow surface forming a forward cavity. A rotary drive means coupled to the atomizing head rotates the atomizing head about the axis of rotation. High voltage electrostatic energy is conducted through the rotary drive means directly into the atomizing head whereby charged coating material flows outwardly across the flow surface.

Abstract: The rotary atomizer disk has an upper part and a lower part connectable to the upper part using a plurality of screws. The disk comprises a number of atomizer nozzle insert receiving holes for receiving a corresponding number of nozzle inserts from outside the disk, and a number of screw receiving bores passing at least partially through each of the insert receiving holes for receiving the screws connecting the lower part to the upper part. In this way, by removing any one of the screws, a corresponding one of the nozzle inserts can be removed from the disk without disassembling it. The inserts may be symmetrical and be turned or reversed to be reused. The invention avoids the need to rebalance the disk after disassembling for nozzle replacement purposes.

Abstract: A liquid pumping device, particularly useful as nebulizer, includes a receptacle for receiving a quantity of a liquid to be pumped, a hollow conical tube having a small-diameter end located to be immersed in the liquid to be pumped, and a larger-diameter end located above the liquid to be pumped, and a drive for rotating the hollow conical tube about its longitudinal axis to pump by centrifugal force liquid therethrough from its small-diameter end to its larger-diameter end. When the device is used as a nebulizer the hollow conical tube includes a plurality of holes at vertically spaced locations, and a plurality of annular discs secured to the outer surface of the conical tube each underlying one or more of the holes.

Abstract: A rotary atomizer for spraying fluids toward an object to be coated with the fluids includes an atomizer housing defining a central longitudinal axis and enclosing a plurality of feed tubes between an inlet end and an outlet end of the housing, and a shaft rotating about the longitudinal axis and protruding from an outlet end of the housing. A distributor is mounted on the shaft and spaced from the outlet end of the housing, for atomizing the fluids conveyed by the plurality of feed tubes and directing a spray of the fluids radially outward toward the object to be coated. A plurality of injection ports, each communicating with a corresponding feed tube is located at the outlet end of the housing for injecting the fluids toward the distributor. Each feed tube can be dedicated to a different fluid.

Abstract: A centrifugal device for atomizing a coating product comprises a generally bowl-shape rotating member having an inside wall substantially perpendicular to the rotation axis of the rotating member between a drive hub and the interior surface of the bowl. The wall defines within the bowl a front cavity open in the spraying direction and a rear cavity surrounding the hub. A coating product nozzle and a cleaning product nozzle are accommodated in the rear cavity and are both directed towards the wall. Passages are formed at the outside periphery of the wall near the interior surface, and the wall incorporates an annular opening communicating with the rear cavity and within which is defined a reflector surface adapted to reflect some of a jet of liquid towards the central part of the wall. The cleaning product nozzle is oriented towards the reflector surface.

Abstract: The outer surface of a turbine-housing (2) of an air-driven rotary atomizer for coating workpieces electrostatically is surrounded by a cover (5) made of a three-dimensional material permeable to air, whereby the formation of condensation-water upon the turbine-housing can be avoided.

Abstract: An air brush includes a housing having a chamber. A battery-driven fan is rotatably disposed in the chamber. The fan includes a plurality of radially extending blades. The chamber has an inlet opening and an outlet opening. A paint container is associated with the inlet opening for supplying paint to the fan. In a preferred embodiment, a guide extends from the paint container into contact with the fan blades for guiding paint to be sprayed to the extremities of the fan blades. The outlet opening is restricted by a detachable cover having a hole therethrough. The hole is of a selected predetermined size and shape to help spray a predetermined area with the air brush. The cover may be removed to permit a broader spray discharge. The chamber in the housing is provided with a drain opening. A detachable reservoir is secured to the housing below the drain opening for collecting paint discharged from the drain opening.

Abstract: A rotary atomizer for spray coating objects includes an onboard color changer valve manifold as well as an optional onboard fluid pressure regulator. The manifold facilitates rapid and efficient color changing while reducing coating material wastage and solvent usage. The invention also contemplates mounting the color changer repositionally along an axis which preferably coincides with the rotary axis of the atomizer. This facilitates installation and removal of the regulator and permits the coating material flow path between the discharge port of the color changer and the atomizing head to be kept short and straight which improves flow control and facilitates thorough flushing of the flow path with solvent. Other improvements including a particular color changer manifold and atomizer head structure are also disclosed.

Abstract: The centrifugal spraying device comprises a fan, a rotating spray unit and a cyclone air flow. It consists essentially of a hollow cylinder, the lower part of which is drilled with spray apertures and whose upper part is provided with flats with recesses against which are fixed blades comprising a cylindrical root extended by a threaded rod provided with a nut. The hollow cylinder is fed by injectors drilled with nozzles and is connected to the output shaft of the drive motor by means of a hollow shaft. The inner wall of the hollow cylinder is separated vertically by a collar located just above the first row of spray apertures. Main application: treatment of crops.

Abstract: An outlet nozzle for centrifuge drums, consisting of a nozzle holder with an axial intake channel and with an orifice that is made of a harder material, that fits into the channel, and that has an axial outlet channel comprising a cylindrical bore downstream of an entry cone. The orifice is positioned in the nozzle holder such that the axis of symmetry of the intake channel is at an angle to that of the outlet channel, diverting the flow of the fluid through the nozzle. The initial section of the entry cone is provided with a semicircular recess on the same axis of symmetry, having the same radius as the intake channel, and immediately adjacent thereto.

Abstract: A spray drier (1) for the preparation of powders, agglomerates or the like, by the drying of pumpable products, has at an inlet (6) of its exhaust discharge line or lines (7) for the drying gas used in its drying chamber (3), a wind sifter (9) with a rotating bucket wheel (10). The flow generated by the rotating bucket wheel (10) of the wind sifter (9) acts against the exhaust suction flow. The discharge of fine materials is directed into the exhaust line (7) and the coarse material discharge (8) takes place in the drying chamber (3). Consequently, excellent desired separation of the coarse material component from the fine material component can be obtained within the drying chamber.

Abstract: A manual, portable spray apparatus is disclosed to enable a worker to spray fields in a remote area where batteries may be difficult to obtain. The apparatus includes a portable chemical liquid storage tank, from which gravity feeds agricultural liquid chemicals to a rotary spray head. The spray head is powered by a small electric motor which receives its electrical current from a portable dynamo. The portable dynamo is rotated by a portable gear train which in turn is functioned by a hand crank. The worker can maintain spraying operations by rotating the crank as he walks and by applying the rotary spray head to the desired areas to be sprayed as the entire apparatus is moved. The dynamo output can be connected to accessory electrical or electronic equipment such as a radio transmitter, a transistor radio or a lamp to thereby achieve maximum utility under all conditions of use.

Abstract: A spray shield unit adapted to be mounted on the head of a sprayer where the head has a spinner thereon rotatable about an axis for spraying liquid generally radially outwardly with respect to said axis. The spray shield unit comprises a hub having an opening therein for receiving the head of the sprayer, and a generally planer circular shield member mounted on the hub generally coaxial with the hub and projecting radially outwardly from the hub for shieldling spray emitted by the spinner from the wind. The shield member is rotatable on the hub generally on the central axis of the hub opening whereby when the spray shield unit is mounted on the head of the sprayer and when the sprayer is held with the spinner axis generally horizontal, the shield member may be rolled on the ground to maintain the head of the sprayer in the hub opening a fixed vertical distance from the ground to provide a uniform distribution of spray onto the ground.

Abstract: A rotary element (8), for distributing liquids such as herbicide, comprises a concave liquid receiving surface (22) including a conical outer portion (26). Teeth (28) project from the outer portion (26). Each tooth has an upper surface (30) which is inclined to the rotary axis of the element by a greater angle than is the outer portion (26). Each tooth has side surfaces (32) which extend parallel to the rotary axis and have a maximum axial dimension (t) which is greater than 0.01, and preferably 0.05, times the overall diameter of the element.

Abstract: An inproved rotary paint atomizing device of the type having an internal chamber for receiving paint from a paint feed tube extending coaxially through a drive shaft which rotates the device at a high speed. An annular insert is clamped between the drive shaft and the device for forming a rear wall of the paint receiving chamber. The insert prevents paint from splashing into the annular space between the rotating drive shaft and the stationary paint feed tube. When the device is removed from the shaft. The separate insert permits easy access to the paint receiving chamber for cleaning.

Abstract: A rotary atomizer including a manifold assembly adapted to be attached to a mechanism for supporting and/or moving the atomizer and an air bearing turbine motor housing assembly releasably secured to the manifold assembly. Sources of pressured fluid for actuating the atomizer and coating fluid are connected to the manifold which has fittings for releasably sealing to apertures in the rear cover of the housing assembly. The opposite end of the housing includes a shaping air cap and a shaping air ring which cooperate to define an annulus for discharging a thin ring of shaping air over the peripheral edge of an atomizer bell to direct fluid particles toward a target. Exhaust air from the turbine motor is vented to the inside of the housing and directed to a chamber behind the atomizer bell to aid in directing the fluid particles.

Abstract: A rotary atomizer including a manifold assembly adapted to be attached to a mechanism for supporting and/or moving the atomizer and an air bearing turbine motor housing assembly releasably secured to the manifold assembly. Sources of pressured fluid for actuating the atomizer and coating fluid are connected to the manifold which has fittings for releasably sealing to apertures in the rear cover of the housing assembly. The opposite end of the housing includes a shaping air cap and a shaping air ring which cooperate to define an annulus for discharging a thin ring of shaping air over the peripheral edge of an atomizer bell to direct fluid particles toward a target. Exhaust air from the turbine motor is vented to the inside of the housing and directed to a chamber behind the atomizer bell to aid in directing the fluid particles.

Abstract: A rotary atomizer including a manifold assembly adapted to be attached to a mechanism for supporting and/or moving the atomizer and an air bearing turbine motor housing assembly releasably secured to the manifold assembly. Sources of pressured fluid for actuating the atomizer and coating fluid are connected to the manifold which has fittings for releasably sealing to apertures in the rear cover of the housing assembly. The opposite end of the housing includes a shaping air cap and a shaping air ring which cooperate to define an annulus for discharging a thin ring of shaping air over the peripheral edge of an atomizer bell to direct fluid particles toward a target. Exhaust air from the turbine motor is vented to the inside of the housing and directed to a chamber behind the atomizer bell to aid in directing the fluid particles.

Abstract: A rotary atomizer including a manifold assembly adapted to be attached to a mechanism for supporting and/or moving the atomizer and an air bearing turbine motor housing assembly releasably secured to the manifold assembly. Sources of pressured fluid for actuating the atomizer and coating fluid are connected to the manifold which has fittings for releasably sealing to apertures in the rear cover of the housing assembly. The opposite end of the housing includes a shaping air cap and a shaping air ring which cooperate to define an annulus for discharging a thin ring of shaping air over the peripheral edge of an atomizer bell to direct fluid particles toward a target. Exhaust air from the turbine motor is vented to the inside of the housing and directed to a chamber behind the atomizer bell to aid in directing the fluid particles.

Abstract: A rotary atomizer is provided with a center feed tube which forms a stationary central shaft. A rotating shaft is fitted over the stationary shaft with ball or air bearings and has a rotationally symmetric turbine wheel thereon. Located at the end of the rotating shaft is a rotary atomizing cup which is fed by the center feed tube. The forward face of the cup terminates in the discharge edge and is fed by a nearly continuous slot which is formed by a distributor located in the center of the cup and which is spaced from the main body of the cup by three small pins. A small portion of paint is allowed to flow through a diffuser located in the center of the distributor and which provides continuous wetting of the front of the distributor so as to prevent the flaking of dried paint.

Abstract: An improved rotary paint atomizing device in the form of a bell and a cover plate which is releasably attached to the front center of the bell. Paint fed along the axis of the device onto a conical projection on the back surface of the cover plate accelerates and flows outward in a radial direction. The cover plate surface is curved so that as the paint flows outwardly, it also flows first forward and then back until it reaches radial slots formed in a peripheral rim on the cover plate where the cover plate contacts an interior bell surface. Paint discharges from the slots onto a conical interior bell surface and flows in wide, closely spaced ribbons which merge into a uniform, continuous thin sheet before it is discharged from the bell edge. As the paint discharges from the bell edge, the sheet produces extremely fine uniform ligaments which break up to produce fine, uniform small paint particles.

Abstract: An atomizer wheel for the atomization of slurries of highly abrasive materials which includes a hub secured to a rotating shaft, a wheel bottom connected to the hub, a cylindrical side wall connected with the wheel bottom and a cover plate to form a bowl-shaped feed supply chamber. The side wall includes a number of openings fitted with bushings to provide nozzles which eject droplets of a suspension or slurry provided to the bowl-shaped feed supply chamber. The inner end of each of the bushings extend inwardly from the side wall of the wheel and the inner end or at least a portion of the inner end of at least one of the bushings extends radially inwardly from the side wall a greater distance than the inwardly extending ends of other bushings.

Abstract: A spraying head for spraying material such as herbicides comprises a rotary distribution member (22) and a body made up of a housing (4) and a cap (6) which is rotatable on the housing (4). The housing (4) has a projection (28) which projects into an aperture (74) in the cap (6) to define an annular gap (78). The housing (4) and the cap (6) also define an annular cavity (72) into which material is introduced in use, the material then flowing to the member (22) through the gap (78). A device utilizing rotation of the cap (6) on the housing (4), is provided for adjusting the flowrate of material to the distribution member (22).

Abstract: Electrostatically charged liquid such as water is supplied via rotating structure to impinge on a baffle. The latter deflects the charged liquid onto a rotating insulative, frusto-conical surface on which the charged liquid forms a film which flows forwardly to an annular edge. Gas such as air, sweeping past the edge, impacts the layer arriving at the edge and produces fine charged droplets of the liquid, forming a fog. This charged fog is usable for suppressing dust particles in the air.

Abstract: Device for the atomization of liquid paints, includes an atomizer bell and a coaxial centrally perforated deflecting member. The transition surface of the bell cooperates with the axially rear surface and the radially outer surface of the deflecting member to form the boundaries of a chamber in the form of a gap between the bell and the deflecting member, which chamber has only localized interruptions in the form of spacers between the bell and the deflecting member in which the axially rear surface of the deflecting member and the base part of the transition surface facing said rear surface each have an obtuse angled step in cross-section.

Abstract: An improved method and apparatus for producing an disbursing uniform liquid or melt droplets employing a core-fed rotating sprayer having multiple tiers of orifices.

Abstract: A color exchange and cleaning device of a minibell painting machine has two systems or sections, that is, a bell-side (first) color exchange and cleaning section and a counter-side (second) color exchange and cleaning section, and includes a manifold provided with a bell-side conduit and a counter-side conduit. The bell-side conduit is communicated with a trigger dump valve for the bell-side color exchange and cleaning section and a trigger valve for the counter-side color exchange and cleaning section. The counter-side conduit is connected via a connection hose with the trigger dump valve for the bell-side color exchange and cleaning section. The trigger valve for the counter-side color exchange and cleaning section is connected with a dump valve. The counter-side conduit is provided with a plurality of color valves, a low-pressure thinner valve and a low-pressure air valve. Thus, a manifold for the bell-side color exchange and cleaning section is eliminated, and the connection hose is made short.

Abstract: A spray head of rotating type electrostatic spray painting device comprises a cup shaped inner circumferential wall and a tip portion from which paint particles are discharged. The outer periphery of the tip portion is formed as an annular flat face perpendicular to the rotating axis of the spray head. The inner periphery of the tip portion is formed as a conical face which diverges toward the outside of the spray head. A plurality of paint guide grooves are formed on only the inner periphery of the conical face.

Abstract: A tankwasher which may be mounted permanently in a tank that requires frequent cleaning comprises a tube 1 connected to a source of cleaning liquid supply, a shaft 5 non-rotatably mounted in the outlet end of the tube 1 and having an enlarged head at the end thereof which protrudes from the tube 1, a liquid guide 3 surrounding said shaft 5 internally of the tube 1 and formed with helical grooves on its external surface, and a shaped liquid distribution disc 4 rotatably mounted around the shaft 5 between the head of the shaft 5 and the neighboring end of the liquid guide 3. An R-shaped resilient clip 2 constitutes the only connection of the shaft 5 to the tube 1 and, upon its removal, the shaft 5, the liquid guide 3 and the disc 4 can all be freely removed from the tube 1 and from each other for cleaning or other purposes.

Abstract: A coating applicator has a rotary atomizer detachably mounted directly on a front end of a rotor of an air driven turbine for convenient removal and cleaning of the atomizer. The rotor and atomizer are forward of bearings that rotatably mount a shaft for supporting the rotor, which isolates the bearings from coating material delivered to the atomizer, and turbine exhaust air augments shroud air in shaping the pattern of atomized material.

Abstract: A process and apparatus is disclosed comprising a high-speed rotation bell for applying quick-evaporating fluids, such as quick-evaporating liquid paint, wherein the impact deposition of largely evaporated paint particles on the high-speed rotation bell is prevented by affecting the flight path of the paint particles flying back in the zone of the toroidal vortex toward the high-speed rotation bell with electric or magnetic or aerodynamic forces or combinations of these forces.

Abstract: An atomiser having a drum which has a driving end portion and an annular portion extending therefrom, there being slots extending in an axial direction between the inner drum surface and the outer drum surface of the annular portion, so that there are a plurality of edges from which the liquid film moves away from the drum to form droplets and the film can thereby be thin even though rates of flow of the order of 2 liters/minute can be discharged from a small drum.

Abstract: A rotary type electrostatic spray painting device including a rotary shaft driven by an air turbine. A reflecting face portion and a non-reflecting face portion are formed on the rear end face of the rotary shaft. A rotating speed sensor is arranged adjacent to the rear end face of the rotary shaft to detect the rotating speed of the rotary shaft from light reflected from the reflecting face portion. The amount of pressurized air fed into the air turbine is controlled in response to the output signal of the rotating speed sensor so that the rotating speed of the rotary shaft becomes equal to a desired rotating speed.

Abstract: A rotary type electrostatic spray painting device comprising a rotary shaft supported by static pressure air bearings in a non-contact state. A drive turbine wheel and a braking turbine wheel are fixed to the rotary shaft. A paint injection nozzle is provided for feeding paint onto a cup shaped inner wall of the spray head. The paint injection nozzle is connected to a paint suction device. When changing the color of the paint, pressurized air is injected towards the braking turbine wheel and, at the same time, paint remaining in the paint injection nozzle is sucked away by the paint suction device.

Abstract: A spraying head for spraying material such as herbicides comprises a rotary distribution member (22) and a body made up of a housing (4) and a cap (6) which is rotatable on the housing (4). The housing (4) has a projection (28) which projects into an aperture (74) in the cap (6) to define an annular gap (78). The housing (4) and the cap (6) also define an annular cavity (72) into which material is introduced in use, the material then flowing to the member (22) through the gap (78). Means, utilizing rotation of the cap (6) on the housing (4), is provided for adjusting the flowrate of material to the distribution member (22).

Abstract: The present invention relates to a powder distributor for electrostatic painting provided with reciprocating vertical movement, wherein the powder in mixture with air reaches the center of a sectional element, for example a disk, which disperses it evenly over its perimetral rim.The distributor comprises a reservoir divided into two chambers by an intermediate porous septum, a first, upper chamber into which a first, powder-in-air suspension feed circuit debouches, and a second, lower chamber into which a second, compressed air feed conduit debouches. Provision can also be made for a third conduit, for compressed air feed, the compressed air being in such case discharged parallel to the direction of discharge of the powder suspension.

Abstract: Centrifugal atomizer head for connection to a high speed rotary atomizer, having an outer disk for receiving and atomizing liquid, and a central disk fitted over the outer disk so as to create an annular liquid passage therebetween, the central disk having a central recess with a plurality of openings through the recess to receive liquid for passage into the recess and over the central disk and over the outer disk.

Abstract: A rotary type electrostatic spray painting device comprising a rotary shaft which is supported by static pressure air bearings in a non-contact state. A drive turbine wheel and a braking turbine wheel are fixed to the rotary shaft. The static pressure air bearings are connected to an air feed pump via an air supply conduit. Pressurized air is injected from air injection nozzles towards the turbine wheels only when the pressure or the flow rate of pressurized air flowing within the air supply conduit exceeds a predetermined level.

Abstract: An apparatus for spraying plant-protective agents comprises a spray head having a motor, a spray plate mounted on the driving shaft of the former and a first container which is fastened to a lance. The container is connected via a connecting pipe line with a nozzle in the vicinity of the center of the spray plate. Diametrically opposite the mouth of the connecting pipe line in the container, a supply hose is connected with the first container which hose connects the latter container with a portable second container. Thereby, the relatively small first container can be refilled from the substantially larger second container. A large area can, therefore, be sprayed without having to handle the plant-protective agent. This reduces the danger of coming into contact with the plant-protecting agent. The apparatus is particularly suitable for the spraying of insecticides and fungicides.

Abstract: A rapidly cleanable rotary atomizer is characterized by a passageway extending between a rearward coating material cup of the atomizer and a forward coating material feed surface, from an edge of which atomization occurs. The passageway initiates in the material cup at a non-zero radius from the atomizer axis and terminates on the material feed surface at the axis. During changes of coating material, the passageway enables flushing media to be introduced from the material cup onto the material feed surface immediately at the axis of rotation of the atomizer for quickly and thoroughly cleaning the entirety of the material feed surface.

Abstract: A self-propelled, rotary liquid atomizer having a feed tube and a rotor operably connected at the bottom thereof. The feed tube is hollow and is affixed to the inlet line of a pressurized liquid source. This liquid source is not only atomized but serves as the motor force for the atomizer. A plurality of slits are formed at the bottom of feed tube and they are juxtaposed a plurality of cup-like openings and holes formed in the rotor. As the liquid under pressure is passed through the feed tubes it exits from the slits at the bottom of the feed tube and impinges upon the cup-like openings within the rotor to cause the rotation thereof. This high speed rotation causes the rotor to act as a fly wheel spinning at such high speed that it increases the momentum of the liquid forcing it up and along the walls of the rotor and out through the openings therein. As the liquid reaches the openings at the top of the rotor, it is sheared into fine droplets and sprayed/atomized at 360.degree. around the rotor.

Abstract: An improved controlled droplet applicator for applying fluid in droplet form to a target area. The applicator includes a rotary atomizer for generating fluid droplets of ideal size and density. The improvement includes a fan for rotating with the atomizer and for causing the fluid droplets to move toward the target area.

Abstract: An improved pesticide spray apparatus is disclosed which incorporates an independently controlled chemical delivery system with an independently controlled air delivery system for increased pesticide application efficacy. The air delivery system includes a blower unit which is aerodynamically efficient and a unique protective shroud system which prevents the undesirable corrosion of the electrical and hydraulic components of the spray system.

Abstract: A rotating spraying type coating apparatus with wash shroud comprises a rotary drive device, a spraying head connected to the rotary drive device, a paint feed passage connected to base end of the spraying head, a paint radiating part formed at top end of the spraying head, an air jet device of annular shape for jetting an air flow to direct paint particles forward which are radiated from the paint radiating part, a coating pattern adjusting valve for varying the flow rate of the air jetting from the air jet device, a wash shroud covering outside of the spraying head and movable forward and rearward, and an opening formed at front end of the wash shroud.

Abstract: A coal-water mixture (CWM) burner includes a conically shaped rotating cup into which fuel comprised of coal particles suspended in a slurry is introduced via a first, elongated inner tube coupled to a narrow first end portion of the cup. A second, elongated outer tube is coaxially positioned about the first tube and delivers steam to the narrow first end of the cup. The fuel delivery end of the inner first tube is provided with a helical slot on its lateral surface for directing the CWM onto the inner surface of the rotating cup in the form of a uniform, thin sheet which, under the influence of the cup's centrifugal force, flows toward a second, open, expanded end portion of the rotating cup positioned immediately adjacent to a combustion chamber. The steam delivered to the rotating cup wets its inner surface and inhibits the coal within the CWM from adhering to the rotating cup.

Abstract: A centrifugal sprayer of the type having an electric motor driving a disc element, and coupled to a feed mechanism, wherein the feed mechanism is suspended in immersion in the liquid to be sprayed, including interchangeable hollow cone feed members having at least several surface slope angles relative to the vertex of the cone, and an outer housing around the feed mechanism, the housing having a bushing surface in supporting contact with the feed mechanism to maintain constant axial position during rotation of the cone feed mechanism.

Abstract: A method of treating a polluted gas e.g. desulphurizing a sulphur dioxide-containing flue gas is carried out by spraying the flue gas with a slurry of e.g. calcium hydroxide, under spray drying conditions. The spray device comprises a rotating cup comprising an extended surface on which a film of slurry is formed. On leaving the surface the slurry is immediately impacted with a high velocity stream of air supplied through an annular orifice.Arrangements for supplying the slurry to the rotating cup comprises a stationary distribution device adapted to direct the slurry onto the surface with a swirl component of motion.

Abstract: A self-propelled, floating, rotary, liquid atomizer having a feed tube and a free floating rotor operably connected at the bottom thereof. The feed tube is hollow and is affixed to the inlet line of a pressurized liquid source. This liquid source is not only atomized but serves as the motor force for the atomizer as well as lifts the rotor off its support to become free floating. A plurality of slits are formed adjacent the bottom of feed tube and they are juxtaposed a plurality of cup-like openings and holes formed in the rotor. As the liquid under pressure is passed through the feed tubes it exits from the slits at the bottom of the feed tube and impinges upon the upper edges of the cup-like openings within the rotor to cause the rotor to lift from its support coincidental to rotation thereof.

Abstract: An electrostatic spraying apparatus for applying a liquid coating material to a work piece, and which comprises a rotating bell-like or disc-like atomizer head and an annular gap coaxial therewith which is connected to a compressed air source is provided with an improvement of a further annular gap connected to a compressed air source, the additional gap coaxially surrounding the first annular gap, and the gap width of at least one of the two annular gaps being adjustable.

Abstract: A liquid spray apparatus comprises a pneumatic drive and automatic speed regulating device. To this end, a vane wheel which can be acted upon by an air stream is mounted axially displaceably on a shaft. The vane wheel is in contact with regulating elements which are moved radially outwardly at increasing speed by the influence of centrifugal forces. In doing so the regulating elements act upon the vane wheel in a manner such that it is displaced at least partially out of the range of the air stream.