Fluid sprinkling – spraying – and diffusing – Processes – Including electrostatic charging
Patent
1991-02-26
1992-04-07
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including electrostatic charging
239 68, 239 69, 239112, 239691, 118302, 118629, 427 27, B05B 502, B05B 1704
Patent
active
051020459
ABSTRACT:
An electrostatic spray coating system has a reservoir into which a metered quantity of electrically conductive paint is flowed from a grounded color changer and through a first flow meter. After filling the reservoir, at least a portion of the flow path between the reservoir and the color changer is cleaned of paint to electrically isolate the reservoir and paint therein from the color changer. The paint in the reservoir is then flowed through a second flow meter to an electrostatic spray gun. The second flow meter is electrically isolated from ground and is used to compare the quantity of paint delivered to the spray gun to the quantity of paint loaded into the reservoir, as well as to monitor and control the volume flow rate of paint from the reservoir to the spray gun. The arrangement makes it possible to spray substantially all of the paint flowed into the reservoir and to accurately control the flow rate of paint to the spray gun.
REFERENCES:
patent: 3674205 (1972-07-01), Kock
patent: 4337282 (1982-06-01), Springer
patent: 4592305 (1986-06-01), Scharfenberger
patent: 4878454 (1989-11-01), Cann
patent: 4879137 (1989-11-01), Behr et al.
patent: 4932589 (1990-06-01), Diana
patent: 4962724 (1990-10-01), Prus et al.
Binks Manufacturing Company
Kashnikow Andres
Merritt Karen B.
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