Abstract: The invention relates to a level detecting system for a powder container of a powder-coating apparatus. It contains an inductive proximity sensor (22) and an electrically insulating membrane (28) which is displaceable to-and-fro the proximity sensor and which is fitted on its inside surface opposite the proximity sensor with a metallic element (32) affixed to it and affecting the magnetic properties of the proximity sensor. The level detecting system operates regardless of any powder particles adhering to it.

Abstract: A spray gun coating objects with a coating material. Its barrel (2) and its grip (4), at least their basic shapes, are one integral structure (6).

Abstract: Equipment and method for feeding coating powder in metered manner from a powder bag (2). A bag covering assembly (12, 32) is placed on the powder bag (2). Thereupon the powder bag (2) is rotated on a reversing unit (6) into an upside-down position wherein coating powder may be fed from the powder bag (2) by means of a powder feed device (40) mounted on the bag covering assembly (12, 32).

Abstract: A spray powder-coating apparatus fitted with an electronic control system (21) regulating the air flows (20, 43) to an injector (4) as a function of setpoints (m) for the rates of powder to be moved, and as a function of a setpoint (GV) for the total rate of air passing through the nozzle, by means of motor-driven adjustable throttles (18, 19, 44, 45), preferably also as a function of the actual values (89, 90) of the regulated air flows (20, 43).

Abstract: A powder coating system comprising at least one throttle unit (10) which is adjusted by an electric motor, preferably a stepping motor (6) through a bellows connector (12).

Abstract: A powder spray-coating cabin, in particular a vertically cylindrical cabin, has its air suction flows shifted away from the center of spray coating toward object wall passages.

Abstract: A spray coating device for coating powder, comprising an electrode support (24) fitted with an electrically insulating tubular segment (26) running at least 1.5 cm from an electric contactor (34) into a powder duct (8).

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 coating-powder spray gun comprising a gun housing (2) of which the front end face is sealed pressure-hermetically with respect to compressed gas by a front end wall (28). A current-limiting resistor (32) and at least a portion of a high-voltage generator (10) are potted in an integral electrically insulating block. The potted block may be received in the gun housing (2).

Abstract: Spray coating apparatus comprising a spray nozzle (2) and a regulation system (16) to limit the high voltage and to limit the current, further to measure the electric spray current of the high-voltage electrode (10).

Abstract: Spray coating apparatus comprises a spray nozzle (2) and a regulation system (16) which limits the high voltage at a high-voltage electrode (10) to a predetermined voltage value. The system also directly measures and limits the electric spray current of the high-voltage electrode (10) to a predetermined current value. The electric spray current is limited by adjusting the high voltage at the high-voltage electrode (10).

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: The invention relates to a high-voltage powder spray gun, in particular for spraying metallic powders. The rear terminal segment (60) of a powder tube (38) and the front terminal segment (58) of a hookup tube (56) are inserted far enough in axial and sealing manner to subtend between their overlap ends (69, 78) a powder-tight, electrically insulating expanse (76) to preclude electrical leakage currents. An electrically conducting bush (42) runs over the outer overlap end (78) of the hookup-tube/powder-tube connection to shunt any electric charges that might issue at the outer overlap end (78) between the hookup tube (56) and the powder tube (38).

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: The invention relates to a powder facility used for spray coating and comprising at least one injection unit (6), at least two powder stations (2) and at least one cleaning unit (16) which are mutually displaceable in program-controlled manner in order to alternatively convey powder from one of the powder receptacles of the powder stations or to clean the powder-flow itineraries using compressed cleaning air.

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: 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: 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 powder-conveying injector to move coating powder and wherein the jet catching duct(8) of the conveying jet nozzle (4) is made of glass.