Abstract: Systems and methods for applying powder coating materials in electrostatic spray systems are provided. For example, a gravity feed of recovered powder coating from the recovery system to the feed system is disclosed. In addition, a powder feed system is disclosed wherein a powder suction lance assembly has only two operable positions, a first for feeding powder from a fluidized hopper and also corresponding to a purge position for a novel purge manifold, and a second retracted position for powder color changes and servicing. Also, a pump assembly block in physical communication with an air line attachment plate, a suction tube plate, and a hose manifold is disclosed. A plurality of attachment members removably attach the air attachment plate, a suction tube plate, and the hose manifold plate to the pump assembly block. Method for applying a first powder color and a second powder color in a powder feed center are also provided.

Abstract: The machine is an index spraying machine. The machine has five different stations. The first station is the load/unload station. At this station, work pieces are unloaded after they have been sprayed and new work pieces to be sprayed are loaded on. New pieces then move into the pre-heat station tunnel. A third station is the spraying area. In this area, the work pieces are sprayed. After being sprayed, the work pieces move in the area where they are heated to flash off the volatile fumes. Then they move to the fifth work station where they are cooled and finally they move back into the load/unload station. The spraying area in this machine is sealed to meet NEMA 7 standards. The air capture system cascades the air, thus lowering the air volume that passes through the thermal oxidizer.

Abstract: One embodiment of the invention provides a spray booth that comprises a spray booth housing having a ceiling and side walls that define an interior for holding an object to be sprayed. A pressurized air plenum is disposed above the ceiling and is adapted to supply air into the interior. A filter media is used to filter air from the plenum before entering into the interior. At least one fan is disposed in the interior below the filter media. The fan is operable to locally increase air flows in the vicinity of the object to increase evaporation rates associated with a spray application on the object, and to enhance air flow over the object during a dry or a cure cycle.

Abstract: A spray box provides a portable enclosure through which trim, molding, and other boards may be passed for spraying with a liquid coating such as stain, paint, or varnish. A board enters a passage aperture at one end of the spray box, is sprayed by spray nozzles provided in the spray box, and then exits a passage aperture at an opposing end of the spray box. Rollers transport the board through the spray box, wherein excess spray is collected at a drain hole and recirculated back to the spray nozzles for reuse.

Abstract: A vacuum painting head to paint objects, including a container having an inlet aperture and an outlet aperture for the object to be painted, wherein the outlet aperture has a transverse section substantially equal to that of the object to be painted, wherein a suction pump is provided to create inside the container a determinate depression with respect to atmospheric pressure, and wherein paint is continuously introduced into the container. A stopper element is inserted into one of the apertures and is selectively movable to move away from or closer to the other aperture to open or close it.

Abstract: An assembly is disclosed treating a moving web (1) of paper or paperboard with a web treatment substance, the assembly comprising an application chamber (P2) located in a close vicinity of the moving web (1) and facing the web (1), whereby the chamber is delineated by the web (1), the walls (12) of the coater apparatus and sealing means (18, 24, 35) adapted to operate at the web ingoing and outgoing sides of the application chamber (P2). For application of the web treatment substance, the assembly includes at least one linear nozzle array incorporating at least one nozzle (21) for spraying the web treatment substance onto the web (1).

Abstract: A system, method and apparatus for collecting overspray from single color coating applications. Within a spraying area are one or more curtains. The curtains are continuously coated on one side with the material to be sprayed through material dispensers aimed at the upper region of the panel curtains. The material dispensers coat the panel curtains so that material runs down the panel curtains and into a recycling pan. Spraying equipment is used to coat the object. The spraying occurs in the direction of the panel curtains. Thus, any overspray material from the spraying process is deposited on the panel curtains. The flowing material on the curtain collects the overspray material to and transfers it to the collection pan for re-use in the collection process. In the collection pan, one or more agitators may be used to ensure proper consistency is maintained for the material.

Abstract: An adhesive layer is provided on a base material in the shape of an elongated film, powder particles are adhered thereon, and then other powder particles and media vibrated in a container are contacted with this adhesive layer. Next, the powder particles are embedded on the surface of the adhesive layer as a monolayer in which part of the powder particle protrudes, so as to form a laminate, and excess powder particles adhered to the laminate are removed. Therefore, a monolayer powder film, consisting of many powder particles embedded as a monolayer so that part thereof protrudes, is produced.

Abstract: A system and method for handling airflow in a paint booth where a primary plenum encloses a secondary plenum having a damper to control the amount of air entering the secondary plenum from the primary plenum. The secondary plenum is installed above a paint spray applicator and an anemometer. A damper at the secondary plenum inlet controls the amount of airflow from the primary plenum in real time based at least in part on the air velocity detected by the anemometer. The present invention can be employed with a system having variable density filter media extending across the primary plenum outlet to regulate the velocities of air moving through various locations of the paint booth.

Abstract: An apparatus for processing a workpiece in a micro-environment includes a workpiece housing connected to be rotated by a motor. The workpiece housing forms a substantially closed processing chamber where one or more processing fluids are distributed across at least one face of the workpiece by centrifugal force generated during rotation of the housing. A sump is connected to an inlet and an outlet in the chamber. Rotation of the workpiece housing recirculates fluid into the chamber.

Abstract: Device for cleaning a powder coating booth and powder coating booth with cleaning device. The device for cleaning a powder coating booth is provided with a first air distribution batten arranged on the floor of the powder coating booth. Also provided is a second air distribution batten arranged on a side of the powder coating booth and a suction channel with a suction slot for sucking excess powder out of the booth. The first and the second air distribution batten are provided in order to blow excess powder in the direction of the suction slot.

Abstract: The present invention is a coating unit for applying a coating solution on a substrate, comprising: a container enclosing the substrate; a casing for accommodating the container therein; a supply device for supplying a predetermined gas into the casing; a first exhaust pipe for exhausting an atmosphere inside the container; a second exhaust pipe for exhausting an atmosphere inside the casing; a first adjusting device which is disposed in the first exhaust pipe, for adjusting a flow rate of an atmosphere passing through the first exhaust pipe; and a second adjusting device which is disposed in the second exhaust pipe, for adjusting a flow rate of an atmosphere passing through the second exhaust pipe. According to the present invention, the second exhaust pipe is usable for adjusting the exhaust flow rate to maintain a pressure inside the casing at a positive pressure.

Abstract: Suitable corrugated filter grids (7, 7?) are mounted on the suction intakes (6, 6?) and are positioned with a downward inclination towards the conveyor (4) of the machine, their lower ends allowing drops to fall on to this conveyor. The suction intakes contain further removable filters (9, 9?) and the lower ends of the said intakes are connected to a horizontal collector (10) which is positioned transversely under the conveyor of the machine and whose lower walls are inclined and converge towards a lower area in which is provided a tank (11) which collects all the paint precipitated by the filters located in the suction intakes and which is attached to the inner walls of the system by contact and by impact.

Abstract: A booth for coating objects with powder, in particular for powder painting, comprises in a manner known per se a housing, in which there is situated at least one application device, with which powder can be applied to the objects. Situated in the upper region of the housing is an air plenum, which is fed with supply air via an inlet opening. The air plenum is closed off downwardly by a filter ceiling. In contrast to known filter ceilings, the one according to the invention is air-permeable in its marginal region only, while in its central region it consists of air-impermeable material. The supply air is thus introduced into the interior of the booth as a kind of “air curtain” which flows mainly along the side walls of the housing of the booth, entrains in the process stray excess powder which has not adhered to the objects to be coated, and supplies it to at least one extraction opening situated in the bottom of the booth.

Abstract: A processor for processing integrated circuit wafers, semiconductor substrates, data disks and similar units requiring very low contamination levels. The processor has an interface section which receives wafers in standard wafer carriers. The interface section transfers the wafers from carriers onto novel trays for improved processing. The interface unit can hold multiple groups of multiple trays. A conveyor having an automated arm assembly moves wafers supported on a tray. The conveyor moves the trays from the interface along a track to several processing stations. The processing stations are accessed from an enclosed area adjoining the interface section.

Abstract: An installation for powder coating articles, in particular vehicle bodies, comprises a coating booth, in which a plurality of application devices for the powder coating may be arranged. The articles to be coated are located during the coating process on a rotating rotary stand. Application devices located in various angular positions relative to the axis of the rotary stand may be charged with powder coatings of different colors. A collecting hopper is located at the bottom of the coating booth, the outlet opening of which collecting hopper may be brought as desired into connection with various recovery devices for powder overspray. To coat articles of different colors, the application devices charged with powder coating of the appropriate color are activated in each case and the recovery device which collects the powder of the corresponding color is brought into connection with the outlet opening of the collecting hopper.

Abstract: An apparatus is provided for spray coating an article and includes a housing defining a spray chamber. A spray gun is mounted on the housing for spray coating the article in the spray chamber. A shroud is disposed about the spray gun and defines an air passage between an inside of the shroud and an outside of the spray gun. Heated air is passed through the passage to heat the spray gun and, thereby, heat a coating material passing through the spray gun. A system includes a curing apparatus whereat the article, with the spray coating thereon, is finished by curing the spray coating. The curing apparatus creates an amount of heated air which is fed to the shroud.

Abstract: A painting booth, which includes: a frame which supports a plurality of movable walls (3) made of deformable material, whose internal surfaces bound a volume which can contain objects to be painted; at least one distributor arranged inside the volume and suitable to distribute painting powders meant to be applied to the surface of the objects to be painted; and removable means (10) which are suitable to interact operatively with the movable walls, so as to facilitate the removal of residual painting powders which deposit on their internal surfaces; and actuation means (6, 7, 11) which are suitable to move the movable walls with respect to the removal means. The actuation means include coupling means (11) for coupling to the movable walls, which are suitable to move the movable walls so as to keep the internal surfaces constantly taut.

Abstract: The present invention provides a truck trailer manufacturing facility for coating workpieces such as metal plates or grating sections with a thermal spray anti-slip coating that provides a durable, high coefficient of friction surface on the workpieces. The manufacturing facility of the invention includes at least one surface preparing machine and at least one coating machine housed in a truck trailer. The present invention also provides a method of coating a workpiece with the truck trailer manufacturing facility.

Abstract: A device for applying a coating medium to at least one partial surface of an elongated workpiece in a vacuum chamber. The device includes a housing (1) having a storage container (2) with an oblique base (3) and an air conduit opening into the base and of a deposition device that is positioned above the storage container. To ensure that the air stream exiting the vacuum chamber has a degree of purity that complies with legal requirements so that the stream can also be introduced into the working chamber, or can be used for a further coating process without any detrimental effect on the same, several sheath-type filter rods (13), which consist of borosilicate glass and are traversed by the air, are arranged downstream of the deposition device (5,7) in the direction of flow of the air removed by suction.

Abstract: Material balance is maintained in a recycling system for aqueous paint by controlling a liquid amount within the recycling system while spray-coating an article. A recycling method includes: coating an article with aqueous paint in a water-curtain-type coating booth; collecting an over-spray paint, that does not adhere to the article, by virtue of a water curtain; sending a collected solution of paint and water to a condensation bath through a booth circulation water bath; separating this solution by an ultra-filtration apparatus into condensed paint and filtrate, with the condensed paint being transferred to a paint tank; and removing condensed paint from the paint tank, if necessary for adjustment of aqueous paint, followed by coating this aqueous paint onto an article, wherein a total amount of liquid present within the recycling system is controlled to be constant during spray-coating of an article.

Abstract: Apparatus for spraying a coating onto the outside of a pipe includes a body for mounting on a pipe to be coated. A spray gun is mounted on the body such that it can move relative to the body to spray coating completely around the periphery of the pipe. The apparatus may include only a single spray gun which is able to travel in a 360 degree range of motion around the periphery of the pipe. The apparatus is particularty suited to coating girth welds of a pipeline.

Abstract: A powder coating system includes a booth and one or more powder-recovery modules that are insertable into an equipment-receiving space of the booth. A color change method includes removing a first powder-recovery module from the equipment-receiving space and positioning a second powder-recovery module in the equipment-receiving space.

Abstract: A powder atomizer comprises a rotatable powder conveying brush operably associated with a powder supply. A powder receptacle has an inlet and an outlet. The powder conveying brush extends along the inlet and supplies powder to the receptacle. A rotatable powder metering brush is operatively associated with the outlet and withdraws powder from the receptacle. A rotatable powder atomizing brush is operatively associated with and receives powder from the metering brush and discharges the powder. A shoe is operatively associated with the atomizing brush, and is pivotable about a pivot axis between a first and a second position.

Abstract: A powder spray apparatus is described including a powder booth with a scraper bar which reciprocates across the floor thereof to collect deposited overspray powder and supply it to intakes located at each end wall. The intakes are connected by a feed channel to one or more cyclone separators. An exhaust duct may also be provided for air-borne overspray powder which preferably forms part of the feed channel. Powder recovered from the cyclone separators may be passed to a common collection hopper by use of a venturi pump which transfers the powder from each separator to the hopper via a sieve located in a ventilated enclosure above the hopper.

Abstract: A water washer for spray booth includes a gas exhaust duct, an exhaust fan and a fluid pump. The duct includes an entrance and an exit, with the entrance of the duct including a plurality of apertures. The entrance of the duct is positioned to receive a gas mixed with a spray from a spray application area of a spray booth. The exhaust fan is positioned to draw the gas from the spray application area into the gas exhaust duct. The fluid pump is coupled to a source of fluid and fluid supply pipe, which is positioned to direct a fluid into the plurality of apertures at the entrance of the enclosure and thereby remove overspray from the gas drawn from the spray application area.

Abstract: A robotic paint applicator having a plurality of relatively movable housing enclosures each including an explosion proof motor including a housing having a gas inlet and outlet, and a source of non-combustible gas under pressure connected to each motor housing inlet circulating non-combustible gas through the motor housing and directing non-combustible gas into the robot housing enclosures. The robot housing enclosures are substantially air-tight and interconnected with a control unit operating an inlet valve to maintain a predetermined pressure of non-combustible gas within each robot housing enclosure. The method of this invention includes purging the motor housings and robot enclosures at a first pressure and maintaining a lesser pressure of non-combustible gas following purging.

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 coating booth containment structure including first and second canopy halves, each of which is a substantially nonconductive, seamless, structural composite to substantially reduce oversprayed powder particle adhesion to the booth inner surfaces. The composite canopy halves, when assembled into a spray booth additionally including either a floor or a utility base and one or a pair of end units in the form of aperture bulkheads, vestibules, or a combination of both, are structurally sufficiently strong that no external support frame is required. The composite canopy halves can each include sidewall and ceiling portions, in an embodiment, that can be connected to a floor. In another embodiment, the canopy halves each additionally include a floor portion such that they may be connected together at a floor edge and placed atop a utility base. They may be connected to the utility base.

Abstract: A substrate processing apparatus can efficiently form, e.g. by electroless plating, an interconnects-protective layer on the surface of a substrate at a low initial cost for the apparatus and a low running cost without the need for a wide installation space. The substrate processing apparatus includes a loading/unloading and cleaning area accommodating a first transfer robot which has a hand adapted for handling a dry substrate and a hand adapted for handling a wet substrate, a loading port which loads a substrate cassette that houses a substrate, and a cleaning unit for cleaning a substrate. A plating treatment area accommodates a second transfer robot which has a back surface-attracting type of hand provided with a reversing mechanism, a pretreatment unit for carrying out pretreatment of a substrate before plating, and a plating treatment unit for carrying out plating treatment of the substrate.

Abstract: A powder spray booth (2) with a powder recovery system having an overspray intake (18) communicating with the interior of the booth. A vertically extending duct (20) leads from the overspray intake to a powder recovery system such as, for example, a cyclone. The vertically extending duct may have doors (32) opening to the interior of the booth to provide access to the vertical duct for cleaning. The doors may have holes (120) to aspirate air from the booth interior to optimize air flow patterns within the booth. A diverter plate (26) within the booth (2) defines with the booth floor (10) a floor duct leading to the overspray intake (18). The diverter plate has apertures for allowing oversprayed powder to be collected through the plate.

Abstract: In the manufacture of a semiconductor device, an arrangement for forming a layer on a semiconductor substrate compensates for variations in wafer substrate reflectivity. The arrangement includes providing substrate illumination and then adjusting the illumination on the substrate. The arrangement also includes controlling the dispensation of material over the substrate as a function of the adjusted illumination. By compensating for variations in wafer substrate reflectivity, manufacturing processes can realize more consistent photoresist coatings on wafer substrates from one wafer lot to another.

Abstract: The improved air booth evacuates paint spray and other particulates from the booth by altering the permeability of filter media in various zones. Adjacent to the centerline of the booth is a first zone. This first zone has the highest permeability, and thus the highest air velocity through it. A second zone is between the first zone and the side walls of the booth. The second zone can have some increased resistance to air flow, reducing the velocity of air passing through the second zone. A third zone between the side walls and the second zone can provide an intermediate level of permeability.

Abstract: A method for conveying sheets, which have been printed in a printing machine, through a sheet delivery system above a sheet deposit pile by a sheet conveying device and, at the same time, dusting the sheets with a powder, and preventing uncontrolled spread of excess powder, includes interrupting a powder-laden air flow extending in a direction towards the printing machine along an empty strand of the sheet conveying device in a housing of the sheet delivery system at least at one interruption location between a free end of the sheet delivery system and the printing machine, so that transport of entrained powder in a direction towards the printing machine is prevented; a prevention device for performing the method; a sheet delivery system including the prevention device; and a sheet-fed printing machine in combination with the sheet delivery system.

Abstract: An installation for coating objects with a powder, in particular for powder painting, comprises a booth, in which powder can be applied to the objects, a recovery device for the excess powder, which does not adhere to the objects during coating, a storage container for fresh powder and a mixing container, which can be supplied with excess powder from the recovery device and fresh powder from the storage container. A screening machine is arranged in the immediate vicinity of the mixing container, preferably directly beneath the latter, and serves at the same time as an application container, in which mixed powder can be temporarily stored for removal by the application device. The screening machine is not subjected to any low-frequency vibrations, so that a weighing device, which continuously measures the weight of the screening machine, measures the instantaneous consumption of mixed powder in real time.

Abstract: A shuttle feed passage 7 is provided in each functional processing station from a coating booth 1 to an after-heating booth 6 for performing a series of operations from coating to baking and drying. A conveyance frame 12 is fed to each of the booths 1-6 using a shuttle feed method, and conveyance of the workpiece W is stopped to perform the coating operation and the like. An empty conveyance frame 12 from which the coated workpiece W is removed is circulated through a self-propelled feed passage 9. A carriage 39 of the conveyance frame 12 is caused to travel outside the booth 1, and the supporting arm 13 of the conveyance frame 12 is caused to travel inside the booth, wherein the supporting arm is caused to rotate around the axis.

Abstract: A modular powder recovery apparatus includes a base unit, one or more cartridge filters, and a wrapper that at least partially encloses the cartridge filters. The wrapper is designed to allow additional wrappers to be vertically stacked thereon to increase the overall height of the wrapper, thus permitting additional filter capacity without changing the base unit. The base unit is modular in design so that the size of the apparatus may be increased with a minimum of cost and waste.

Abstract: In a powder coating compartment having at least one manual coating station which is located outside the compartment in front of an aperture in an end wall for the entry and exit of workpieces to be coated, the aperture being designed to be closed by a door which is disposed for swinging movement at the wall of the compartment and, when fully open, forms a sidewall of the manual coating station, it is provided that the door comprises a door panel adapted to be mounted at either side of the aperture by pivot means designed for quick release of the door from the pivot means.

Abstract: An apparatus is provided for spray coating an article and includes a housing defining a spray chamber. A spray gun is mounted on the housing for spray coating the article in the spray chamber. A shroud is disposed about the spray gun and defines an air passage between an inside of the shroud and an outside of the spray gun. Heated air is passed through the passage to heat the spray gun and, thereby, heat a coating material passing through the spray gun. A system includes a curing apparatus whereat the article, with the spray coating thereon, is finished by curing the spray coating. The curing apparatus creates an amount of heated air which is fed to the shroud.

Abstract: A modular powder recovery apparatus includes a base unit, one or more cartridge filters, and a wrapper that at least partially encloses the cartridge filters. The wrapper is designed to allow additional wrappers to be vertically stacked thereon to increase the overall height of the wrapper, thus permitting additional filter capacity without changing the base unit. The base unit is modular in design so that the size of the apparatus may be increased with a minimum of cost and waste.

Abstract: A planarizing pad for planarizing a microelectronic substrate, and a method and apparatus for forming the planarizing pad. In one embodiment, planarizing pad material is mixed with compressed gas to form a plurality of discrete elements that are distributed on a support material. At least a portion of the discrete elements are spaced apart from each other on the support material to form a textured surface for engaging a microelectronic substrate and removing material from the microelectronic substrate. The discrete elements can be uniformly or randomly distributed on the support material, and the discrete elements can be directly affixed to the support material or affixed to the support material with an adhesive.

Abstract: The present invention relates to a processing unit for processing a substrate, which comprises a chamber for housing the substrate and forming a hermetically closeable processing room, and an exhauster for exhausting an atmosphere in the processing room from an upper portion of the chamber to reduce a pressure in the processing room. The processing unit of the present invention includes a current plate for controlling an atmospheric current formed in the processing room when the pressure is reduced, and the chamber has a mounting table for mounting the substrate thereon, an almost cylindrical lid body with its lower face open for covering the substrate on the mounting plate from above and forming the processing room integrally with the mounting table, and a supporting member for supporting the current plate so that the current plate is parallel to the mounting plate.

Abstract: According to the invention, the carrier gas that accelerates the spray particles during cold gas spraying, or a component of the carrier gas, is captured, cleaned and collected after the cold gas spraying process. The cold gas spray gun (3) and the work piece (5) are located in a closed tank (4) from which the used carrier gas is removed, and advantageously the helium is recovered in a helium recovery unit (9). The invention enables use of optimally acting carrier gases, such as, for example, helium or helium-containing mixtures.

Abstract: The present invention is a coating unit for applying a coating solution on a substrate, comprising: a container enclosing the substrate; a casing for accommodating the container therein; a supply device for supplying a predetermined gas into the casing; a first exhaust pipe for exhausting an atmosphere inside the container; a second exhaust pipe for exhausting an atmosphere inside the casing; a first adjusting device which is disposed in the first exhaust pipe, for adjusting a flow rate of an atmosphere passing through the first exhaust pipe; and a second adjusting device which is disposed in the second exhaust pipe, for adjusting a flow rate of an atmosphere passing through the second exhaust pipe. According to the present invention, the second exhaust pipe is usable for adjusting the exhaust flow rate to maintain a pressure inside the casing at a positive pressure.

Abstract: A venturi scrubber plate for a waste capture system and method for a waste material entrained in a fluid flow includes an enclosure having a flood sheet over which a liquid flows into a collection trough, an exhaust device which draws the fluid flow from the enclosure, across the collection trough, and through a throat section to a primary scrubber section, the venturi scrubber plate including a plate which is mounted on and substantially covers the collection trough, which has defined therein a plurality of holes, and through which the fluid flow containing the waste material flows, wherein the plate imposes a venturi effect on the fluid flow effective to accelerate the fluid flow so that turbulent mixing of the fluid flow containing the waste material and the liquid takes place and results in improved capture of waste material by the liquid ahead of the primary scrubber section.

Abstract: An apparatus is provided for coating a continuously advancing article. The apparatus includes a housing defining a spray chamber having an inlet end and an outlet end. Walls in the spray chamber form an inlet buffer zone adjacent the inlet end, an outlet buffer zone adjacent the outlet end and a spraying zone between the inlet and outlet buffer zones. A conveyor transports articles to be coated through the spray chamber. A plurality of spray guns are mounted on the housing to substantially surround an article on the conveyor transported through the spraying zone. The spray guns are adapted for spraying an ultraviolet curable coating composition. The spray guns are mounted substantially entirely outside the spraying zone, with only nozzle portions of the spray guns located inside the spraying zone.

Abstract: A compartment for powder coating workpieces conveyed through an aperture for the workpieces formed in an end wall and coated by means of automatic coating equipment inside the compartment in which there is negative pressure comprises at least one manual coating station located beyond and adjacent the aperture, as seen in conveying direction of the workpieces for manually coating workpieces outside of the compartment. In this manner, on the one hand, openings in the sidewalls of the compartment for manual coating of the workpieces from the side of the compartment can be dispensed with and, on the other hand, practically unlimited free space is offered during manual coating.

Abstract: A method and a device for applying powdered material on a surface comprise forming a flow of liquid, preferably by ejecting said liquid as drops from ejectors arranged in array and controlled by computer means, associating portions of said powdered material with said flow of liquid, moving said flow of liquid, together with said portions, towards said surface.

Abstract: A spray booth comprises a housing having a ceiling and a set of walls that each have a bottom end and a top end, with the walls and the ceiling defining an interior. An air intake is disposed in the ceiling, and an exhaust outlet is disposed near the bottom end of one the walls. A circulation system is used to introduce air into the interior through the intake and to exhaust air through the outlet. Further, the air intake is configured to produce a airflow gradient within the interior such that the flow rate decreases in a direction toward the outlet and such that the airflow through the interior is in a generally downward direction.

Abstract: The organic raw material is vaporized to generate the raw material gas in the vaporizing chamber. This raw material gas is mixed with the carrier gas, and transported to the chamber through the raw material gas transportation pipe. The substrate is held within the chamber while the organic film formation surface of the substrate does not face downward in a vertical direction straight up from the ground. The injector of the raw material gas is opposed to the substrate. The raw material gas is blasted from the direction orthogonal to the substrate. Particles fall without adhering to the substrate when holding the substrate in the vertical direction. The deformation of the substrate and the mask for separately painting pixels can be suppressed.