B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/16, 117/54
B05B 5/08 (2006.01) B05B 5/16 (2006.01) B05B 12/14 (2006.01) B05D 1/04 (2006.01)
Patent
CA 1322102
METHOD OF AND APPARATUS FOR ELECTRICAL ISOLATION OF ELECTROSTATIC SPRAYERS Abstract of the Disclosure Apparatus for coupling a grounded color changer and associated supplies of conductive paint to an electrostatic paint sprayer isolates the color changer and paint supplies from a high voltage at the sprayer The apparatus has at least one reservoir into which u metered volume of one color of paint to be sprayed is introduced while the reservoir and its contents are grounded. After charging the reservoir with paint and prior to supply of the paint lo the sprayer fluid lines between the reservoir and color changer are flushed to electrically isolate the reservoir and paint therein from the color changer and paint supplies. The reservoir and paint therein are then ungrounded and the paint is delivered to the sprayer for being emitted in an electrostatically charged atomized spray. At the end of spraying the high voltage is removed from the sprayer and the reservoir and its contents are again grounded following which the reservoir is purged of paint of the one color and reloaded with paint of another color. Advantageously the apparatus has two reservoirs for alternately receiving and delivering selected colors of paint to the sprayer so that one may be cleaned and reloaded with paint while the other delivers paint to the sprayer.
615377
Binks Manufacturing Co.
Macrae & Co.
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