Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam
Patent
1998-11-13
2000-09-05
Morris, Lesley D.
Fluid sprinkling, spraying, and diffusing
Processes
Including mixing or combining with air, gas or steam
239112, 239704, 239DIG14, A62C 502, B05B 1502
Patent
active
061129992
ABSTRACT:
A paint system includes a plurality of supply tanks that can be selected for supplying powder paint to a spray site, each having a supply line connected to the supply tank and having an end section, a spray gun, and a purge air supply. Each end section is configured for selective connection to the spray gun to spray powder paint from the supply tank and also for connection to the purge air supply to blow residue powder paint in the supply line back into the supply tank. A control device operably connects a fluidizing air supply to each supply tank. The control device is configured to fluidize the powder paint in each tank at a low standby pressure when the supply tank is not in use, and to fluidize the powder paint in the tank at a higher operating pressure when the supply tank is selected for use. Methods related to the above cause the color change to be very efficient and quick, with low waste of powder paint.
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Exhibit A discloses a prior art powder paint pump and feed hopper; manufacturer and disclosure Date Unknown.
Exhibit B discloses a prior art powder paint pump and feed hopper; manufacturer and disclosure Date Unknown.
Fingleton Patrick J.
Jager Eugene C.
Meyer Robert W.
Morris Lesley D.
O'Hanlon Sean P.
Steelcase Development Inc.
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