Abstract: The invention relates to a method and a device for powdering printed paper sheets. According to the invention, the performance of the air-pressure generator which generates the air stream for the powder-air mixture can be adjusted in line with the machine speed or the speed of transportation of the paper sheets.

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 continuous casting apparatus includes a dispensing assembly for introducing granular mold flux onto the top of a slab being cast within a continuous casting mold. The apparatus has a delivery apparatus for feeding granular mold flux from an intermediate hopper to the top of a slab being cast, and the delivery apparatus has at least one delivery tube assembly interconnected with the intermediate hopper, with a mechanism for controlling the flow rate of the mold flux through the delivery tube assembly. In the first two embodiments, the flow rate control mechanism is a variable diameter pinch valve located between the intermediate hopper and the delivery tube assembly. In the third and fourth embodiments, the flow rate control mechanism is an air pump and a mechanism for varying the air volume through the air pump so that the granular mold flux delivered is a function of the air volume of the air pump.

Abstract: In an apparatus for supplying powder coating material, when a given supply rate Qm of powder coating material F and a carrier air flow rate Qt are inputted, whether learned data of a suction air pressure Pfm with respect to the inputted given supply rate Qm is stored in a memory or not is determined. If the data is stored, the learned data of the suction air pressure Pfm is read, and a pressure regulator for suction air is instantaneously operated to be adjusted to have the value of the read learned data. After that, the apparatus moves to PID control with the given supply rate Qm being the target value. The value of the suction air pressure Pfm when the actual supply rate equals the given supply rate Qm is stored in the memory as learned data.

Abstract: An air unit for the removal of excess particulate coating material that is present on products which are in a coating machine comprises, for blowing surplus particulate material off the products, at least one suction member for drawing off air, with particulate material present therein, from the coating machine, separating means for removing particulate material from the air drawn off, and circulating means for feeding at least a portion of the air drawn off to the blowing member.

Abstract: A powder paint color changer features a single cleaning fluid port at one end of the color changer manifold for direction of cleaning fluid, such as pressurized air, through the main output interior chamber of the color changer manifold thence through a supply hose which is adapted for coupling to a paint application device. Additionally, the powder paint color changer manifold includes a replaceable insert of impact fusion resistant material which defines the surface of the manifold's interior cavity.

Abstract: The machine for the horizontal painting with powdered paints, of three-dimensional and mainly flat wood products or its by-products, comprises a horizontal and motorised conveyor (1) upon which are resting the products to be painted which by suitable means are referred to an electric potential having a predetermined sign and which by the same conveyor are driven to pass through at least one chamber (11) connected to suction means which maintain the same in depression with respect to the external environment, because in said chamber are delivered by suitable means the powdered paints electrostatically charged with electric charges having an opposite sign to the one of the products, to strictly adhere to the same products. The whole is effected in such a manner that the particles of powder do not exit from the inlet and outlet mouths or doors of said chamber because of the suction effected by said suction means.

Abstract: Coating-powder spray equipment comprising a regulator (22) for the total air rate in a total-air line (16) and one air-rate adjusting element (46) solely in one of the two lines “conveying-air line (36)” or “accessory-air line (40)”, the other of said two lines being devoid of any adjusting element.

Abstract: Powder-coating equipment comprises two throttles (6, 16) each mounted in one of a conveyance-air line (8) and a supplemental-air line (18). The throttles' flow impedance’ are adjustable in a motorized manner by providing throttle with its own adjustment motor (4, 14). The adjustment motors, such as electric stepping motors and/or servo-motors are driven by an electronic control unit (2).

Abstract: A method of applying blend drop granules to an asphalt coated sheet includes moving an asphalt coated sheet in a machine direction, generating vertically moving blend drops of granules and directing the vertically moving blend drops of granules into contact with a curved conveyor. The blend drops are moved along the curved conveyor to change the direction of the blend drops of granules to a generally horizontal orientation in the machine direction. The blend drops are released from the curved conveyor for contact with the asphalt coated sheet.

Abstract: A method of applying blend drop granules to an asphalt coated sheet includes moving an asphalt coated sheet in a machine direction, and depositing blend drops of granules on a blend drop conveyor that is positioned above the asphalt coated sheet. The blend drop conveyor has an upper flight moving in a direction opposite the machine direction and a lower flight moving in the machine direction. The blend drops are moved from the upper flight to the lower flight of the blend drop conveyor while retaining the blend drops in contact with the blend drop conveyor by magnetic force. Finally. The blend drops are released from the blend drop conveyor for contact with the asphalt coated sheet.

Abstract: With a method and a device for coating a continuously delivered, web-like sheet formation (2) a first layer (3) of a paste-like plastic is deposited in sections. A second layer (4) of powder-like thermoplastic plastic is subsequently flatly scattered on. The coated sheet formation (2) is subsequently subjected to thermal treatment. Before the thermal treatment, the powder (7) deposited between the sections of the first layer (3) is swirled up by an air jet (L) directed obliquely against the surface (6) of the sheet formation (2) and is simultaneously sucked off by a suction means (10).

Abstract: An apparatus for applying powder coating material onto large objects such as automotive, truck or other vehicle bodies includes a powder spray booth defining a controlled area within which to apply powder coating material onto the vehicle bodies, a powder kitchen located at a remote position from the powder spray booth, and, a number of feed hoppers located proximate the booth which receive powder coating material from the powder kitchen and supply it to automatically or manually manipulated powder spray guns associated with the booth. Oversprayed powder coating material is removed from the booth interior by a powder collection and recovery system which transmits the oversprayed powder back to the powder kitchen for recirculation to the powder spray guns.

Abstract: A high-speed rotary atomiser for applying powder coating includes a housing (1) together with a rotatable bell disc (16) arranged at the front of housing (1). A motor (13) driving bell disc (16) is accommodated in housing (1). At least one powder supply channel emerging at the front of housing (1) passes through housing (1). A guidance air arrangement in the form of a rotationally symmetrical air guidance body (37) coaxial to bell disc (16) is provided for shaping the powder cloud generated by the high-speed rotary atomiser, which air guidance body (37) is mounted on the front of housing (1). Air guidance body (37) has a jacket surface (39, 43) to which guidance air can be so supplied that it flows forwards along jacket surface (39, 43) as a substantially rotationally symmetrical air curtain. In addition, air guidance body (37) has an axial through-bore (38) through which the coating powder flows towards bell disc (16).

Abstract: Systems and methods for controlling, organizing, and viewing a plurality of electrostatic spray gun operating parameters from a centralized control panel are provided. In this regard, a master control panel is provided that can be shared by all the guns in the system. Each of the guns has an assigned gun control subpanel in the gun control area. Each subpanel includes a selector switch which can be used to monitor and control the gun associated with that subpanel on the master control panel. Each of the subpanels also has a limited display such as a bar graph which can be used to show the electrostatic performance of the guns. The subpanel displays are configured in a tight cluster so that the operator can easily simultaneously monitor the performance of all the guns in the system to identify any guns which are not performing properly.

Abstract: The invention concerns a method and a device for applying powder on sections of printing sheets (2). The invention includes a powder airflow (8) enclosed in a protective airflow (13) such that the powder airflow is steady and protected against the action of possible disturbances until it reaches the sections of printing sheets (2).

Abstract: The invention relates to a method for the manufacture of a composite of continuous fibers (11) and plastic. The fibers are present as a unidirectional fiber arrangement (1) or in the form of strand-like, multi-fibrous threads (1), with these threads forming a textile thread arrangement (10), in particular a fabric or braided fabric. The fibers are embedded into a plastic matrix, wherein a polymer or different polymers are provided for the manufacture of the matrix. The fiber arrangement or thread arrangement (1, 10) is draw off from a supply point, in particular a supply reel (100), and impregnated with particles of plastic, with subsequently at least a part of the particles being converted by melting into the matrix. A mean diameter of the particles is not substantially larger than the diameter of the fibers (11). The fiber arrangement or thread arrangement (1, 10) is transported without deflecting elements and guided in one plane.

Abstract: A process and apparatus for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substrate ribbon, and applying sufficient pressure to form a bound layered superconductor comprising a layer of said superconducting precursor powder between said first substrate ribbon and said second substrates ribbon. The layered superconductor is then heat treated to establish the superconducting phase of said superconductor precursor powder.

Abstract: A spray powder-coating system comprising at least one flow throttle (8, 34) in a compressed-air line of an injector (2). An electronic control unit (50) non-linearly controls the throttle as a function of setpoints.

Abstract: Systems and methods for controlling, organizing, and viewing a plurality of electrostatic spray gun operating parameters from a centralized control panel are provided. In this regard, a control panel is provided having, for example, a gun control area for selecting one electrostatic spray gun of a multiple gun system, and an electrostatic control area for displaying and controlling the operational parameters of the selected electrostatic spray gun. The electrostatic control area functions essentially as a master control panel which can be shared by all the guns in the system. Each of the guns has an assigned gun control subpanel in the gun control area. Each subpanel includes a selector switch which can be used to monitor and control the gun associated with that subpanel on the master control panel. Each of the subpanels also has a limited display such as a bar graph which can be used to show the electrostatic performance of the guns.

Abstract: Provided, among other things, is a re-circulating particle feed apparatus comprising: a circular conduit of dimensions suitable for circulating gas with suspended particles; a deposition station comprising an opening onto the conduit, into which opening an electrostatic chuck fits, with a deposition surface of the chuck available to the interior of the conduit; and a propulsion device for maintaining fluid and particle circulation through the conduit, wherein the propulsion device is adapted to maintain fluid and particle circulation at a rate that brings a deposition effective amount of particles within a range of electro-attractive influence at the deposition station.

Abstract: Particles coated with a therapeutic agent are deposited onto the inner surface of a length of tubing using a process which includes introducing the particles into the tubing while the tubing is rotating horizontally. An apparatus for performing the process is also disclosed.

Abstract: An apparatus for applying powder coating material onto large objects such as automotive, truck or other vehicle bodies includes a powder spray booth defining a controlled area within which to apply powder coating material onto the vehicle bodies, a powder kitchen located at a remote position from the powder spray booth, and, a number of feed hoppers located proximate the booth which receive powder coating material from the powder kitchen and supply it to automatically or manually manipulated powder spray guns associated with the booth. Oversprayed powder coating material is removed from the booth interior by a powder collection and recovery system which transmits the oversprayed powder back to the powder kitchen for recirculation to the powder spray guns.

Abstract: A method of applying blend drop granules to an asphalt coated sheet includes moving an asphalt coated sheet in a machine direction, and depositing blend drops of granules on a blend drop conveyor that is positioned above the asphalt coated sheet. The blend drop conveyor has an upper flight moving in a direction opposite the machine direction and a lower flight moving in the machine direction. The blend drops are moved from the upper flight to the lower flight of the blend drop conveyor while retaining the blend drops in contact with the blend drop conveyor by magnetic force. Finally. The blend drops are released from the blend drop conveyor for contact with the asphalt coated sheet.

Abstract: The invention relates to a powder spray-coating cabin, in particular a vertically cylindrical cabin, of which the air suction flows are shifted away from the center of spray coating toward object wall passages (2, 4).

Abstract: The present invention provides a finely-divided powder spray apparatus having a spray nozzle pipe for discharging spacers for liquid crystal displays from the tip together with a gas flow, which is disposed at a prescribed distance from a member to be sprayed, and comprising:

Abstract: An apparatus and method for use with powdered resin feeders provides a continuous stream of powder to a plurality of threaded or non-threaded fasteners. In one preferred embodiment, the apparatus generates a gravity induced powder stream at the free end of a discharge conduit which is intersected by a series of fasteners carried on a conveyor. A vacuum nozzle is positioned adjacent to the powder stream and the conveyor. Both the vacuum nozzle and the free end of the discharge conduit are adjustably positionable relative to the path of the fasteners carried on the conveyor.

Abstract: A powder coating apparatus and method feeds fine powdered coating material such as thermoplastic type material to a succession of discrete articles passing by the apparatus which includes a vibratory feeder bowl and a spiral track for delivering a substantially constant supply of powder coating material to the articles. A sensor is also used to regulate an amount of powdered coating material supplied to an auger to the vibratory feeder. The invention also provides a powder feed system that deposits an excess of powdered coating material than that required to form the coating and provides for recirculation of the powder not ultimately used to form the coating back to the powder feeding apparatus.

Abstract: In a discharge processing method wherein an insulating processing medium (13) is interpolated between an electrode (1) and a processing subject (2) and discharging energy is supplied between the electrode (1) and the processing subject (2) so that the processing subject (2) is processed by the discharge, a processing is carried out with the electrode (1) being pressed onto the processing subject (2) at a predetermined pressure so as to allow the processing medium (13) between the electrode (1) and the processing subject (2)to form a thin film while the electrode (1) and the processing subject (2) are being relatively moved.

Abstract: A device for coating food products with granular material, for example breadcrumb material, comprises a rotating conveyor belt which is permeable to the granular material and on which the food products can be held, guide plates which extend beneath at least a section of the top part and the bottom part of the conveyor belt, a feed, which opens out above the top part of the conveyor belt, for the granular material, a diverter for guiding the granular material from the top part to the bottom part of the conveyor belt and back, as well as a conveyor for conveying granular material from the top part of the conveyor belt to the feed. A selection device to which granular material is fed from the top part of the conveyor belt is situated between the top part and the bottom part of the conveyor belt, via which selection device the selected granular material is fed to the bottom part of the conveyor belt.

Abstract: A system and method for controlling triggering of spray guns in an automatic spray coating system, includes a hand-held pendant having input controls for entering spray gun “on” and spray gun “off” control parameters based upon observation of parts as they are conveyed past the spray guns by a conveyor. Gun triggering controls for optimized spray patterns, including extended and restricted spray patterns and combinations thereof, are entered and saved in a gun triggering controller according to an operator's inputs which include START SPRAY, STOP SPRAY, SAVE and SET PICKOFF controls. Multiple gun control parameters are stored as unique part coating recipes in the controller and are executable in look-ahead sequence based upon part identification as parts are conveyed toward the spray guns. The multiple gun control parameters are calculated by the controller from a fixed Pickoff distance from a part identification sensor to the spray guns.

Abstract: A compartment for powder coating of workpieces (20) which is simple in structure, cost effective, and easy to clean comprises a floor (32, 40), two sidewalls (2, 4), and two end walls (10, 12) at least one (12) of which has a door opening (16) for entry and/or exit of the workpieces (20). Two oblique walls (22, 24) are arranged symmetrically inclined with respect to each other at the inside surfaces of the sidewalls (2, 4) in the lower corner regions of the compartment, so that, together with the corner regions, they define a suction channel (34, 36) each, and with their lower edges they form suction gaps (s). The walkable floor (32) may be embodied by a stationary plate or a discharge belt. The oblique walls (22, 24) can be tilted up against or removed from the inside surfaces of the sidewalls (2, 4) for cleaning purposes.

Abstract: A process and apparatus for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substrate ribbon, and applying sufficient pressure to form a bound layered superconductor comprising a layer of said superconducting precursor powder between said first substrate ribbon and said second substrates ribbon. The layered superconductor is then heat treated to establish the superconducting phase of said superconductor precursor powder.

Abstract: An apparatus is disclosed for kinetic spray coating of substrate surfaces by impingement of air or gas entrained powders of small particles in a range up to at least 106 microns accelerated to supersonic velocity in a spray nozzle. Preferably powders of metals, alloys, polymers and mixtures thereof or with semiconductors or ceramics are entrained in unheated air and passed through an injection tube into a larger flow of heated air for mixing and acceleration through a supersonic nozzle for coating of an article by impingement of the yieldable particles. A preferred apparatus includes a high pressure air supply carrying entrained particles exceeding 50 microns through an injection tube into heated air in a mixing chamber for mixing and acceleration in the nozzle. The mixing chamber is supplied with high pressure heated air through a main air passage having an area ratio relative to the injection tube of at least 80/1.

Abstract: A suction device for a double-point coating system is used to remove excess powder (3′) from a double-coated fabric web (1). The suction device has a powder-suction element (4) to remove excess powder, a fabric-web-suction unit to align the fabric web and at least one beater roller (8, 9) to loosen excess powder. The fabric web suction unit has at least one suction roller (5, 6, 7) that can rotate to convey the fabric web (1) and support it. That way, the fabric webs can be transported tension-free, which largely prevents adhesion of individual dots of paste and clogging of the textile.

Abstract: A system for placing chopped fiberglass strands onto a preform screen where desired includes a relatively light-weight chopper/feeder unit mounted on the outer end of a robot arm in closely spaced relation to the preform screen for robotically directing the chopped fiberglass strands onto the preform screen where desired with very little loss. Within the chopper/feeder unit is a cutter for chopping the fiberglass strands to the desired length. The cutter is driven by a variable speed motor attached to the chopper/feeder unit. Also attached to opposite sides of the chopper/feeder unit are a pair of air amplifiers that produce a sufficient volume and velocity of air flow around said cutter and through said unit to carry the chopped fiberglass strands away from the cutter and out through a discharge chute onto the preform screen.

Abstract: The invention concerns a device for covering printed sheets with powder having a reservoir for the powder, an inlet for a carrier air stream feeding into the reservoir, an outlet for the carrier air stream loaded with powder exiting out of the reservoir and with a heating cartridge disposed in the reservoir, wherein the heating cartridge is provided with a heat conducting device. Powder can thereby be heated in a controlled, simple, and effective manner to remain in a pourable condition.

Abstract: An apparatus for dispensing granules onto a moving asphalt coated sheet includes first and second granule feed chambers containing granules that are fed to a discharge slot by first and second pockets. The pockets are formed in a slidable divider positioned between the feed chambers and the discharge slot. The divider is slid between a first position and a second position by a fluid powered actuator via an actuator rod. In the first position, the first pocket is in communication with the first granule feed chamber to receive granules from the feed chamber and the second pocket is in communication with the discharge slot for discharging the granules contained in the second pocket. In the second position the first pocket is in communication with the discharge slot for discharging the granules contained in the first pocket and the second pocket is in communication with the second feed chamber to receive granules from the feed chamber.

Abstract: A method and apparatus for applying coatings to a portion of the internal bore or threads of a fastener or similar article having an opening on at least one end is provided. A 360° coating with material is provided using centrifugal force to assist in direction the material to a desired surface, which does not require use of a pressurized air stream in order to propell the coating material toward the walls of the article desired to be coated.

Abstract: Powder spray coating equipment includes a spraying system (2), an injector (26) to pneumatically convey powder to the spraying system (2), and at least one flushing-air intake (73) to supply flushing compressed air into the air/powder path at a flushing-air supply site where the flow impedance to the flushing compressed air is less everywhere in the downstream direction through the spraying system (2) than in the upstream direction as far as through the injector (26) in order to drive flushing compressed air from the flushing air intake (73) through the air/powder path and out of the spraying system (2).

Abstract: A method and system are provided for adjusting a discharge width of a powder feeder. The system includes a supply hopper that is spaced from the powder feeder. The powder feeder includes a receiving opening and a discharge opening and at least one adjustable wall. Preferably, two adjustable walls are provided. Movement of the two adjustable walls provides variations in the width of the discharge opening and therefore facilitates use of the powder feeder on target volumes or target areas having different widths. A rotatable auger brush is in communication with the supply hopper for causing powder withdrawn from the supply hopper to be transported to the powder feeder and disposed uniformly across the receiving opening of the powder feeder. The brush is immersed within the powder and extends across the receiving opening of the powder feeder, and maintains a filled level powder feeder. The powder feeder is particularly well-suited for use in a coating apparatus, as well as a dual-side coating apparatus.

Abstract: The disclosure is for an apparatus and a method of adhering particulate matter to limited areas of adhesive on a moving web and enabling the use of a very limited amount of particulate matter so that material costs are minimized. The path of a moving web with zones of adhesive and with previously supplied loose particles is shaped to form a trough with substantially vertical sides, so that gravity clears the web of excess material as the web moves down and up through the trough. Meanwhile, the particles falling from the web, go into the bottom of the trough where they stay until they stick to a following portion of the web which has adhesive. The loose particles are thereby immediately recycled for use, without any exposure to other contaminating materials, and the amount of particulate material used approaches the ideal quantity which would be needed to cover only the adhesive areas.

Abstract: A spacer spraying device for spraying a powdery spacer onto, e.g., a substrate for an LCD (Liquid Crystal Display) is disclosed. When the device sprays the spacer onto the top of the substrate in a spray chamber, it prevents the spacer from depositing on the inner side walls and top wall of the chamber and dropping in the form of cohered masses onto the substrate.

Abstract: A finely-divided powder spray apparatus of the invention comprises a spray nozzle pipe disposed at a position spaced apart from a member to be sprayed a prescribed interval; a support unit of the spray nozzle pipe for supporting it so that it can be inclined; a first joint unit disposed to the upper end of the spray nozzle pipe; two linearly-moving actuators that each move in respective linear paths that are fixed relative to each other and each provided with a second joint unit; and two rods for coupling each of the second joint units with the first joint unit; wherein the finely-divided powder is sprayed onto the member to be sprayed from the spray nozzle pipe which is inclined in an arbitrary direction by combining the movements of the two linearly-moving actuators.

Abstract: A powder coating cabin includes a column-like housing defining an interior space between a ceiling and a bottom, with the bottom being substantially of flat configuration, and a coating unit arranged on the housing for spraying powder onto an object. The powder coating unit is further provided with a cleaning unit which is so received in the housing as to be movable between a stand-by position in which the cleaning unit is arranged at least partially underneath the bottom and an operative phase for automatically cleaning at least the inner wall surfaces of the housing, whereby the bottom is suitably so designed as to clear a passage for the cleaning unit.

Abstract: Apparatus and process for coating a continuously advancing web with a dry or wet coating material on a conveyor belt. The apparatus having a hopper which contains an agitator, a brush and a knurled roll to accurately dispense the coating material to an applicator which is positioned on a carousel. By rotating the carousel, the coating in the form of stripes, bars or a uniform layer can be varied at angles 0° to 90° on the continuously advancing web.

Abstract: A coating apparatus with a spray head is provided for coating can bodies internally. The spray head is supplied with coating material through a feed line which passes through the seam welding machine for the container bodies. The combined spray and extraction head is also connected to a suction line which extracts excess coating material which has not been deposited on the internal walls of the container bodies, and returns it through the welding machine. In this way, the escape of coating material between the individual can bodies can largely be avoided, thus reducing contamination of equipment.

Abstract: Acoustic bead charger/dispenser employs a bead dispersion plate (BDP) to align beads with, for example, bead collection zones of a bead transporter chuck, then propel or launch them toward the bead collection zones, using acoustic energy provided by a speaker. The bead dispersion plate can be configured so that the acoustic energy from the speaker may be directed so as to impart to the bead translational kinetic energy primarily in a direction toward the bead collection zone of the bead transporter chuck. The bead dispersion plate can comprise a conductive surface that can be used to accelerate the beads toward the bead transporter chuck. Using sufficient acoustic energy applied by the speaker, sufficient translational kinetic energy can be imparted to beads to remove them from the conductive surface when they are under the influence of an electrostatic image force.

Abstract: A gas feed system for detonation gun apparatus having a labyrinth shaped gas path. The labyrinth is positioned between the fuel and oxygen supply and the combustion chamber of a detonation gun. The labyrinth allows the fuel and oxygen supply to flow into the combustion and precludes and migration of the detonation wave front into the fuel supply by destroying that portion of the detonation wave front that enters the labyrinth. The labyrinth gas feed system increases safety, reliability and productivity of the detonation coating process.

Abstract: An apparatus and method for use with powdered resin feeders that provide a continuous stream of powder to a plurality of spray nozzles for the application of powder to a plurality of work-pieces. In one preferred embodiment, the apparatus converts a single powder stream into a plurality of uniform powder streams through the use of a multi-tiered system having dividers and receptacles that accurately divide a single powder stream into a plurality of powder streams. In another preferred embodiment, a double-ended stud having ends with differing break-away torques may be created by the device's ability to distribute different amounts of powder to the spray nozzles.