Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam
Patent
1990-11-30
1991-12-24
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including mixing or combining with air, gas or steam
239570, 239373, 239526, 417368, 200826, 200 819R, H01H 3538
Patent
active
050744674
ABSTRACT:
There is provided a high volume low pressure spray painting system, control therefor, and method of operation therefor. The high volume low pressure spray painting system includes an electrically powered blower motor with a cooling fan, an high volume low pressure blower fan driven by the blower motor, an air conduit connecting the outlet of the blower fan to a spray gun adapted to atomize liquid paint with the high volume low pressure air delivered by the blower fan, and a valve in the spray gun actuated by a trigger for controlling the high volume low pressure air delivered by the blower fan. The control for the spray painting system includes a second valve arranged downstream from the blower fan outlet biased to a normally closed position which checks the flow of high volume low pressure air delivered by the blower fan when the valve in the spray gun is closed and simultaneously with the closing of the second valve the speed of the blower motor is reduced to idle. When the valve in the spray gun is open the pressure downstream from the second valve is reduced allowing the second valve to open and causing the speed of the blower motor to increase to a normal operating speed.
REFERENCES:
patent: 2916576 (1959-12-01), Croskey et al.
patent: 4244527 (1981-01-01), De Fusco
patent: 4480967 (1984-11-01), Schulze
patent: 4755638 (1988-07-01), Gobarth
patent: 4762472 (1988-08-01), King
patent: 4767285 (1988-08-01), Jyoralcu et al.
patent: 4857705 (1989-08-01), Bleviins
Kashnikow Andres
Orlando Joseph J.
Weldon Kevin P.
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