Coating apparatus – Program – cyclic – or time control – Having timer
Patent
1988-12-14
1990-09-18
Housel, James C.
Coating apparatus
Program, cyclic, or time control
Having timer
118326, 118629, B05B 508, B05B 1512
Patent
active
049570609
ABSTRACT:
A spray coating apparatus (10) for applying flammable liquid coating material onto a work part (12), including an enclosed spray booth (14) for containing the sprayed flammable coating material in an isolated zone, an atomizer (18) positioned in the spray booth (14) for spraying the coating material onto the work part (12), and a color changer (28) disposed in the spray booth (14) and operated by pneumatic valves (24) for selecting the color of coating material to be supplied to the atomizer (18). Compressed air is supplied from a source outside the spray booth (14) to each of the pneumatic valves (24) on the color changer (28). Intrinsically safe electric solenoid valves (38) are disposed in the spray booth (14) for controlling the compressed air sent to particular pneumatic valves (24) at the color changer (28) so that the proper color of coating material is quickly fed to the atomizer and so that the apparatus (10) can be quickly assembled at locations remote from the place of manufacture.
REFERENCES:
patent: 4278046 (1981-07-01), Clarke et al.
patent: 4335419 (1982-06-01), Hastings
Ernst, Greg, "Intrinsic Safety-An Alternative to Explosion-Proof", Measurements & Control, Apr., 1987, pp. 148-151.
Binks Manufacturing Technical Bulletin; "Electrostatic Spraying", TD 17-1R-3, Apr., 1988, pp. 1-8.
Behr Industrial Equipment Inc.
Housel James C.
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