Apparatus for dispensing conductive coating materials

An apparatus is provided for transferring electrically conductive coating materials, such as water-based paint, from at least one source (14) to one or more coating dispensers (94a,b,c) for discharge onto a substrate. One voltage block (42) is provided to avoid the creation of an electrical path bet...

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Bibliographische Detailangaben
Hauptverfasser:	BRUCE C HILLS, RONALD D KONIECZYNSKI, KENNETH J COELING
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS NOZZLES PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	An apparatus is provided for transferring electrically conductive coating materials, such as water-based paint, from at least one source (14) to one or more coating dispensers (94a,b,c) for discharge onto a substrate. One voltage block (42) is provided to avoid the creation of an electrical path between one or more sources of coating material and the coating material which is electrostatically charged during a coating operation, and a secondary voltage block is provided between each of a number of individual spray guns (94a,b,c) and the charged coating material so that each spray gun can be electrically isolated from the charged coating material when not in use. The apparatus may comprise a colour changer, and/or a heater which is electrically isolated from the charged coating material and is effective to elevate the temperature of the coating material prior to discharge from the spray guns.