Fluid sprinkling – spraying – and diffusing – Electrostatic type
Patent
1992-10-09
1993-12-21
Mitchell, David M.
Fluid sprinkling, spraying, and diffusing
Electrostatic type
239 3, 239112, B05B 502
Patent
active
052715698
ABSTRACT:
An apparatus is provided for transferring electrically conductive coating materials, such as water-based paint, from at least one source to one or more coating dispensers for discharge onto a substrate. One voltage block 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 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 is optionally provided with a color 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.
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Coeling Kenneth J.
Hills Bruce C.
Konieczynski Ronald D.
Mitchell David M.
Nordson Corporation
Weldon Kevin P.
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