Abstract: An injection apparatus for injection material is disclosed. The injection apparatus includes a tank for storing material. The injection apparatus further includes a head body that has a surface for contacting a substrate and an opening part opened at the surface for discharging the material in fluid-communication with the tank. The injection apparatus further includes a member connected to the opening part, in which the member allows gas to flow into and flow out from the opening part.

Abstract: An electrostatic spray system includes an electrostatic tool, a spray tip assembly configured to receive a coating material, and an airflow to atomize and charge the coating material, and spray the coating material in an airflow direction. The spray tip assembly includes a first air cap horn having a recess in a first distal surface, a first charging pin disposed within the recess, and a grounded pin coupled to the spray tip assembly. The first charging pin and the grounded pin are configured to produce an electric field that charges the coating material.

Abstract: An attachment to be employed with any spray device is disclosed. The attachment includes four vanes which are radially attached to an air hub with a central aperture, the central aperture adapted to receive the front portion of the spray device therethrough which when activated dispenses an atomizable substance in a pattern toward a workpiece. At the distal end of each of the four vanes, the vane is angled forward such that it generally points toward the workpiece. At the terminal end of each vane is a plurality of compressed air exit apertures. A compressed air source is attached to the air hub which guides the air through air conduits interiorly disposed within each of the vanes, where the compressed air is forced to exit each of the compressed air exit apertures forming an a second pattern which surrounds the atomizable substance pattern, and further boosts or pushes the atomizable substance onto the workpiece.

Abstract: Provided is an electrostatic atomizing device which performs atomization at low cost. An electrostatic atomizing device (M4) is installed in an atomization chamber (10) of a separation apparatus. The electrostatic atomizing device (M4) includes a plate-like inclined surface electrode (101) and a plate-like counter electrode (102) parallel to the surface electrode (101). A solution is diffused by diffusers (108) onto an upper end of the surface electrode (101). The solution flows down along a front surface of the surface electrode (101) while being spread in a thin film form, and is atomized by an electric field between the surface electrode (101) and the counter electrode (102).

Abstract: A spraying device for producing a spray of particles in a carrier gas at ambient pressure, includes a storage volume for a liquid substance; at least one nozzle having an inlet and an outlet, the nozzle inlet fluidly communicating with the storage volume; a counter electrode; an electric supply coupled between the at least one nozzle and counter electrode for providing a first potential and create a first electric field between the nozzle outlet and the counter electrode. The device further includes at least one discharge electrode coupled to the electric supply for providing a second potential between the discharge electrode and the counter electrode, the polarity of the second potential being opposite to the polarity of the first potential. The at least one nozzle and the at least one discharge electrode are arranged adjacent and parallel to each other and facing the counter electrode from a substantially same direction.

Abstract: Provided herein is a spray nozzle and a coating system using the same, the spray nozzle and the coating system comprising a liquid nozzle injecting liquid towards a substrate; a gas nozzle for injecting gas to collide with the liquid on an injection path of the liquid to perform a primary atomization of the liquid; and a voltage supply connected to the liquid nozzle, the voltage supply for applying voltage to the liquid nozzle to generate an electric field between the liquid nozzle and substrate to perform a secondary atomization of the liquid.

Abstract: A coating dispensing device includes a trigger assembly for actuating the coating dispensing device to dispense coating material and a nozzle through which the coating material is dispensed. The coating dispensing device further includes a first port adapted to supply compressed gas to the coating dispensing device and a second port adapted to supply coating material to the coating dispensing device. The coating dispensing device further includes a generator having a shaft. A turbine wheel is mounted on the shaft. Compressed gas coupled to the first port impinges upon the turbine wheel to spin the shaft, producing voltage. An electrode adjacent the nozzle is coupled to the generator to receive electricity therefrom to electrostatically charge the coating material. First and second seals seal the shaft where the shaft protrudes from the generator at its ends.

Abstract: An electrostatic spraying device comprises a capillary spray electrode having a spraying end, a reference electrode, and a reservoir in fluid communication with the spray electrode. In use, the electrodes are connected across a generator in order to establish an electric field between the electrodes and cause fluid in the reservoir to be sprayed from the spray electrode. The spray electrode has a focus that defines a point at which the electric field is focussed on the spraying end.

Abstract: A nozzle for a powder spray gun optionally includes an internal filter that allows air to be added to the powder flow within the nozzle shell. The nozzle may optionally include an off-axis outlet slot relative to a main flow axis of the powder into the nozzle shell so that powder encounters an obstruction before exiting through the outlet slot.

Abstract: A nozzle for a powder spray gun optionally includes an internal filter that allows air to be added to the powder flow within the nozzle shell. The nozzle may optionally include an off-axis outlet slot relative to a main flow axis of the powder into the nozzle shell so that powder encounters an obstruction before exiting through the outlet slot.

Abstract: An electrostatic coating apparatus for coating an object includes a base module, a nozzle, an electric field generator and a power supply. The object is mounted on the base module. The nozzle receives gas and liquid and ejects the gas and the liquid. The electric field generator mounted on the base module generates an electric field. The power supply has a first pole electrically connected to a first pole of the electric field generator, and a second pole electrically connected to the object and a second pole of the electric field generator such that the electric field is generated in the electric field generator and the atomized liquid passing through the electric field generator is charged and absorbed onto the object to form a coating layer on the object.

Abstract: A device for dispensing coating material includes at least two electrodes for coupling to at least one high-magnitude potential supply so that the at least two electrodes are maintained substantially at two different high-magnitude potentials so that an electric field exists between the at least two electrodes. At least one of the at least two electrodes includes a passageway extending therethrough to provide a flow of compressed gas through the at least one of the at least two electrodes.

Abstract: An electrostatic atomizer including a discharge electrode, a counter electrode, a cooling source, a high voltage power supply and a voltage detector. The cooling source cools the discharge electrode to form thereon dew as water. The power supply applies high voltage for discharge across the electrodes. The detector detects voltage between the electrodes. The power supply includes a control device and a voltage stabilizing device that are opposite to each other in temperature characteristic. The control device operates to pick up the voltage detected with the detector via the voltage stabilizing device, and to adjust the high voltage applied across the electrodes through feedback control so that the voltage corresponds to specified discharge voltage.

Abstract: An electrostatic spraying device has a removable cartridge with a reservoir containing a volume of liquid compositions to be electrically sprayed. The device includes a nozzle for dispensing the liquid and an emitter electrode disposed adjacent to the nozzle for charging the liquid composition just being dispensed from the nozzle. A field electrode surrounds the reservoir in order to charge the liquid composition within the reservoir, thereby avoiding an occurrence of electric current which would deteriorate the composition remaining in the reservoir. The reservoir is at least partially made of deformable material such that the reservoir is capable of receiving pressure to deform and thus supply the liquid composition out of the reservoir. Thus, the reservoir can be designed into a simple and compact structure, thereby providing an increased liquid containing volume in relation to the bulk of the removable cartridge.

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

Abstract: An electrostatic spraying device having a removable cartridge with a reservoir containing a volume of liquid compositions to be electrically sprayed on a user's skin. The device includes a nozzle for dispensing the liquid as well as an emitter electrode disposed adjacent to the nozzle for charging the liquid composition just being dispensed from the nozzle. A field electrode surrounds the reservoir in order to charge the liquid composition within the reservoir, thereby avoiding an occurrence of electric current which would otherwise flow in the liquid composition and would deteriorate the composition remaining in the reservoir. The reservoir is devoid of the field electrode, and therefor can be designed into a simple and compact structure without being restricted by the field electrode, assuring to have an enhanced liquid containing volume in relation to the bulk of the removable cartridge.

Abstract: An electrostatic paint sprayer 10 includes a body member 12 defining a paint passage 12a for flowing liquid paint supplied from a paint source 44, a nozzle assembly 16 adapted to be mounted to the end of the body member 12 so as to fluidly communicate with the paint passage 12a and a plurality of electrode pins 22 disposed about the axis and electrically connected to a electric power source 40. The nozzle assembly includes a paint orifice for discharging the supplied paint along an axis, a plurality of atomizing air orifices for discharging atomizing air to atomize the paint dispensed through the paint orifice and a plurality of shaping orifices for discharging shaping air to form the paint dispensed through the paint orifice into a predetermined pattern.

Abstract: A spray gun suitable for electrostatic coating, using a coating material whose electric resistance is relatively low. A coating material nozzle is attached to the front middle region of a barrel having a forwardly projecting cylindrical section on the front outer peripheral edge, and an air cap which covers their front surfaces is installed. A pattern air flow channel is formed between the air cap, coating material nozzle outer peripheral surface and the cylindrical section inner peripheral surface, and an annular electrode is attached to the inside of the flow channel. The air cap is centrally provided with an atomization air spout hole, and a coating material delivery port at the front end of the coating material nozzle is inserted therein. A pin electrode is projected forward through the coating material delivery port. Two pairs of projections project forward from two sets of opposed locations for the air cap, each with a pattern air spout hole.

Abstract: The inventive device for electrostatically projecting a coating product comprises a spray gun provided with voltage increasing means for producing a high direct voltage for a product electrostatic charge, wherein said spray gun is provided with a controllable valve for controlling an atomizing air flow inside the spray gun in the direction to a spraying head. A pressure sensor integrated into the spray gun is used for detecting the atomizing air pressure (P) representative value downstream of the valve and for delivering a signal (S1) for controlling the power supply of the voltage increasing means. Said invention makes it possible to control the power supply of the voltage increasing means according, in particular, to the signal (S1) received from the sensor.

Abstract: Glycolic disinfectant compositions and related methods and apparatus for electrostatic dispensation.

Abstract: A powder spraycoating gun and its gun housing. The spraygun housing is a plastic, integral body constituting a stock fitted with a powder discharge tube and a grip fitted with a powder intake tube.

Abstract: An electrostatically atomizing device includes an emitter electrode, an opposed electrode disposed in an opposed relation to the emitter electrode, liquid supply means for supplying a liquid to the emitter electrode, and high voltage generating means for applying a high voltage across the emitter electrode and the opposed electrode. The liquid supplied onto the emitter electrode is electrostatically charged through application of the high voltage, as a result of which charged minute liquid particles are discharged from a discharge end of the emitter electrode. The device includes detecting means for detecting a discharge condition developed between the emitter electrode and the opposed electrode, and a controller for controlling the high voltage generating means to regulate its voltage output so as to maintain a predetermined discharge condition, based on detection results by the detecting means.

Abstract: A spray gun for electrostatic painting in which an external electrode sustaining a high voltage can be fixed/removed while sustaining insulation from a spray unit on the ground potential side by limiting current supply to paint appropriately when electrostatic painting is performed using conductive paint, e.g. water based paint, and safety and handling performance are enhanced while ensuring the painting efficiency as the spray gun for electrostatic painting. On the outside of the spray gun (1) having the spray unit (5) at the forward end thereof, the external electrode (7) having an electrode projecting from the forward end part thereof is provided removably at the part (13) of the gun body being connected with the electrode while being separated from the paint passage such that it can be replaced readily.

Abstract: An atomizer, provided with an air motor and a rotary atomizing head is mounted on a front side of a housing member. An external electrode assembly, provided with support arms, electrode support members and acicular electrode members is mounted on the outer side of the housing member. A high voltage is supplied to acicular electrode members by a high voltage generator. Electrode support members are covered by a tubular cover member formed of an insulating resin film. An annular gap space is formed between the cover member and electrode support members.

Abstract: An electrostatic spraying assembly is provided. The spraying assembly includes a housing having a fluid inlet passage that is connectable to a fluid source and communicates with a plurality of discharge passageways each of which extends through the housing to a downstream end at a discharge end of the housing. The housing has a one piece construction and is made of an electrically insulative material. The spraying assembly also includes an electrode assembly. The electrode assembly includes a plurality of elongate electrode elements each of which is disposed in a respective one of the discharge passageways in the housing and an electrode header. The electrode header is electrically connectable to a voltage source and each of the electrode elements is electrically connectable to the electrode header.

Abstract: An electrostatically aided coating atomizing and dispensing apparatus includes an atomizer, a voltage block, a source of electrically non-insulative coating material to be dispensed from the atomizer, an indirect charging apparatus, and at least one source of high magnitude electrical potential. The source of electrically non-insulative coating material is coupled to an input port of the voltage block. An output port of the voltage block is coupled to the atomizer. The indirect charging apparatus is operatively mounted with respect to the atomizer. The at least one source of high magnitude electrical potential is coupled to an input port of the atomizer and to an input port of the indirect charging apparatus.

Abstract: A showerhead facilitating draining of water retained following shut-off. The showerhead includes a housing swivelably fitted on a ball-adapter which in turn includes an integral threaded segment for attachment to a water feed line. An air pathway is formed to extend from inside to outside the ball-adapter where it opens to generally atmospheric pressure. A flexible check valve in the form of an annular skirt is retained by an integral ring portion where the ball-adapter is threaded to the feed line. Under water-flow pressure, the skirt expands, blocking the passage. Upon shut-off, the skirt withdraws, instantly opening the air passage. Opening the showerhead to atmospheric pressure relieves the normally occurring suction effect which keeps water from draining completely from the showerhead spray holes. Thus avoiding the widespread problem of trapped water slowly evaporating and leaving behind stubborn and unsightly mineral deposits that eventually build up to clog showerhead spray holes.

Abstract: The invention relates to a powder diffuser nozzle (2) for an electrostatic dusting device, which is designed to be positioned at the end of an applicator gun. The inventive nozzle (2) comprises: a lateral wall (49) which defines a passage that extends from the powder conduit (8) of the gun (3), and a base (56) which seals said conduit (8) at the end thereof. In addition, a port (57) is provided in the lateral wall (49) close to the base (56) in order to connect the powder conduit (8) with the exterior of the nozzle (2). The axis (A1) of the port (57) forms a determined angle (A) with the axis (A2) of the powder conduit (8). Moreover, at least one deflector (58) is provided on the base of the nozzle (56) or on the lateral wall (49) close to said base in order to divert the jet of powder from the conduit (8) along the axis (A1) of the port (57).

Abstract: A nozzle is provided for use in a dynamic electrostatic air filter, in which the nozzle includes an internal electrode that charges a semiconductive liquid, and includes an external electrode that assists in breaking the liquid into droplets in a predetermined direction. Banks of multiple nozzles are also disclosed, which are separated by a charged “separation electrode” to prevent interference with spray patterns between adjacent banks. An electrostatic fountain is also disclosed which discharges a fragrance, or an inhalable medicine.

Abstract: A valve for controlling the flow of a gas or mixture of gases through a passageway in a coating material dispensing device includes first and second valve portions. The first valve portion is adjustable with respect to the second valve portion selectively to adjust the flow through the passageway. One of the first and second valve portions includes a first engagement member and the other of the first and second valve portions includes a second engagement member. Engagement of the first and second engagement members indicates the relative orientation of the first and second valve portions.

Abstract: A retaining ring for a coating material dispenser including a nozzle for the discharge of coating material and a cap having a plurality of orifices arrayed in a spatial orientation with respect to the nozzle to supply a flow of gas or a mixture of gases to aid in dispensing of the coating material from the nozzle. The retaining ring is adapted for retaining the cap on the coating material dispenser with the plurality of orifices in the spatial orientation. The retaining ring includes first and second members. The second member is adapted for coupling to the coating material dispenser. The first member includes a first torque limiting driving member. The second member includes a second torque limiting driven member for engaging the first torque limiting driving member to limit the torque which the second member can apply to the coating material dispenser in response to manipulation of the first member.

Abstract: The invention provides an electrospray apparatus with an auxiliary electrode, and a method of using.

Abstract: This Universal Flexible Powder Coating Tip/Nozzle (7) will greatly enhance the application of Powder Coating coverage in hard to reach area's do to the ability to bend the flexible tip/nozzle (7) & (10) to reach into those difficult to reach area's. The Powder Coater will no longer have to try to angle a large cumbersome powder Coating gun (1) into tight corners and openings, he only needs to insert the Universal Flexible Powder Coating Tip/Nozzle (7) into these hard to reach areas and bend and turn for proper angle. The uncharged Powder will flow down the Flexible tip/nozzle and receive charging as it travels past the contact at the powder Tip (9) & (10).

Abstract: A spray booth comprising an electrostatic disk (1) that is suitable to move along a shaft in order to position it at a chosen height with respect to a piece to be coated, the electrostatic disk (1) being provided with a plurality of electrodes (3) for generating an electrical field and for coating the piece to be coated by electrostatic disk is composed of a plurality of circulars sectors (1a), each powered by an independent voltage source (12).

Abstract: A powder spraying gun generates a desired pattern of electrostatically charged particles for coating a workpiece without rotating parts or particle deflectors. The powder pattern is generated with a funnel-shaped output in conjunction with air introduced into a powder charging chamber of the gun in a tangential swirling motion. The swirling air is additionally used to purge agglomerated powder particles from the charging electrodes in the charging chamber. The charging chamber surface is fashioned from material exhibiting low friction or high resistance to powder impact fusion.

Abstract: An anti-electrostatic discharge spray gun apparatus and method for preventing crystallization of particles formed as a result of electrostatic discharge from forming on a spray gun nozzle and an associated pair of oppositely charged electrodes disposed on the gun. The apparatus has a housing; a nozzle attached to the housing for dispensing gas; a device for dispensing a gas through the nozzle; a device for electrostatically discharging a gas dispensed through the nozzle; and a device for restricting the flow of a gas through the nozzle. The device for dispensing and restricting flow of a gas through the nozzle may be either a bypass piping having a flow control means or a stopper that operates to provide a constant but low volume flow of an inert gas such as nitrogen to the nozzle to prevent particle build up or crystallization from occurring.

Abstract: A liquid fuel injection nozzle to supply atomized droplets of fuel to a combustion chamber arrangement in a gas turbine engine combustion system. The fuel droplets leave the passage through its upper end defined by an annular sharp edge of a tubular electrode which can be electrostatically charged for the sharp edge to impart electrostatic charge to the fuel droplets as they pass the edge.

Abstract: The invention concerns electrohydrodynamic spraying means enabling electrohydrodynamic spraying, in the air and at atmospheric pressure, of liquids with high surface tension such as water. The means are characterised in that they comprise at least a liquid dispensing conduit (1) whereof the dimensions of the external diameter and of the internal diameter, at the liquid exit point, correspond to an appropriate ratio. Said means can be advantageously used for depolluting aerosol effluents, or transformable into aerosols.

Abstract: A manual spray-coating gun comprising at least one manual setting/operating element (40, 42) to manually change operational values and transmitting the desired operational values to a control unit (4) situated outside the gun.

Abstract: A spraycoating apparatus with a tubular, hollow affixation element (16) to affix an adapter (8) to a casing (2), a coating-material tube (14) running through the hollow affixation element (16) into the casing (2).

Abstract: A power supply for an electrostatic powder spray gun is formed in the shape of a hollow cylinder with a central passageway therethrough. A powder tube is slideably inserted through the central passageway of the power supply thus providing a more compact and symmetric spray gun profile. The power supply may be a voltage multiplier, for example.

Abstract: In an electrostatic sprayer, a pulsating voltage developed using a battery or a generator as a power supply is stepped up using a step-up transformer. A resultant high-voltage pulse is rectified and applied to an electrostatic electrode. A spray jetted from a spray nozzle is thus electrified. Herein, the step-up transformer is located near the spray nozzle. Owing to this structure, a high voltage produced by the step-up transformer can be applied to the electrostatic electrode with a loss minimized.

Abstract: An electrostatic spraying device for use in spraying inter alia personal care and personal hygiene products comprises an outlet (94) from which the product issues in the form of an electrostatically charged spray and a control member (60, 60a) for attenuating the potential gradient in the vicinity of the outlet (94) to such an extent that spraying is suppressed until the device is brought to within a predetermined distance from a site to be spayed.

Abstract: In an electrostatic sprayer, a pulsating voltage developed using a battery or a generator as a power supply is stepped up using a step-up transformer. A resultant high-voltage pulse is rectified and applied to an electrostatic electrode. A spray jetted from a spray nozzle is thus electrified. Herein, the step-up transformer is located near the spray nozzle. Owing to this structure, a high voltage produced by the step-up transformer can be applied to the electrostatic electrode with a loss minimized.

Abstract: An electrostatic spray module for applying agricultural liquids such as a pesticide to crops where, externally to the spray module the number of connections is reduced to three, one for the liquid pesticide, one for compressed air and one for a low voltage signal. Internally to the spray module, the low voltage is converted to a high voltage signal, which is, along with the pesticide and the compressed air delivered to one or more electrostatic spray nozzles using only two electrically conductive pipes, a gas delivery pipe and a liquid delivery pipe. The nozzles fit into the gas delivery pipe and draw the compressed air through gas channel openings in the side of the nozzles. The gas delivery pipe doubles as the means to delivery the high voltage signal to the nozzles. Each nozzle has a liquid feed from the liquid delivery pipe, which carries ground voltage, maintaining the liquid at ground voltage. The grounded liquid merges with the compressed air in the nozzles to form an atomized liquid.

Abstract: A process and a dispersion apparatus for shaping a powder cloud emerging from a powder spraying apparatus achieve large powder clouds and good electrostatic charging by directing control air in a tangential direction towards a powder/air stream flowing through the dispersion apparatus in an axial spraying direction. A helically accelerated movement of the powder/air stream in the direction of an outlet is achieved thereby.

Abstract: A powder spray coating system includes a power source and an electrical supply line connected to the power source. A spray gun sprays powder in a spray pattern onto a part. The spray gun includes an electrode which charges powder as the powder is dispensed from the gun toward the part. The electrode is connected to the electrical supply line. A first current sensing device is located in the electrical supply line measuring gun current between the power source and the electrode. An ion collector or ABI probe is mounted with the gun for collecting free ions produced by the electrode. The collector has a forward portion positioned near the spray pattern and is spaced from the electrode. The collector is connected to a ground line. A second current sensing device is located in the ground line measuring back current between the ion collector and ground. A controller is connected between the power source and the electrode to control the gun current.

Abstract: An electrostatic powder coating gun for dispersing aggregate powder onto substrates. The gun includes swirling air passage outlets to form a vortex of air inside the spray gun tip to reduce powder adhesion and assist in pulverizing the powder material. The coating gun employs a powder supply unit having a fluidized bed that includes temperature and humidity controls to adjust the temperature and humidity of the compressed air supplied to the spray gun and a mixer to agitate the powder in the container.

Abstract: An atomizer has a chamber holding a liquid containing particles of a desired material. Aerosol particles are formed by using an aspirating nozzle or ultrasonic vibrator and the aerosol particles are carried in a gas flow. The aerosol particles are treated by increasing the charge on the aerosol particles by contact with a high voltage electrode and the aerosol particles are passed through inertial separator stages to remove large aerosol particles from the flow so they are not discharged from the atomizer.

Abstract: A rotary atomizing electrostatic coating apparatus having a rotating spray head, and a paint nozzle for feeding paint on the front surface of the spray head, in which the spray head is comprising a spray head main body made of an electrically insulating material, and a plurality of discharge electrodes having nearly band-form pattern extending outward approximately along the rear side shape of the spray head main body from the central side of the spray head main body with a mutual phase difference or extending symmetrically about the axis of rotation of the spray head main body. The plurality of discharge electrodes rotate together with the spray head main body, and the discharge current in the front side direction of the axis of rotation of the spray head is made uniform and increased, thereby enhancing the painting efficiency.