(19)
(11) EP 0 396 223 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.09.1991 Bulletin 1991/36

(43) Date of publication A2:
07.11.1990 Bulletin 1990/45

(21) Application number: 90301948.7

(22) Date of filing: 23.02.1990
(51) International Patent Classification (IPC)5B05B 12/14
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 01.05.1989 US 345367

(71) Applicant: BEHR INDUSTRIAL EQUIPMENT INC.
Rochester Hills, Michigan 48309-5648 (US)

(72) Inventor:
  • Cann, Roger
    Mt. Clemens, Michigan 48045 (US)

(74) Representative: Ben-Nathan, Laurence Albert et al
Urquhart-Dykes & Lord 91 Wimpole Street
London W1M 8AH
London W1M 8AH (GB)


(56) References cited: : 
   
       


    (54) Method and apparatus for flushing residual paint from the internal flow passages in a paint distribution system


    (57) Residual paint is flushed from a paint distribution system (12) by simultaneously injecting a measured volume of atomized solvent and a quantity of compressed air into a manifold (58). Prior to injection, the solvent is first moved into a metering cylinder (44) having an outlet therefrom communicating with the manifold (58). A metering piston (46) is slideable within the metering cylinder (44) for urging the measured volume of solvent into the manifold (58). An air pressure responsive piston (32) is connected to the metering piston (46). At the appropriate times, air pressure is applied to the air piston (32) and also injected into the manifold (58). As the air piston (32) is moved, the connected metering piston (46) forces the measured solvent through an atomizer nozzle (56) and into the manifold (58).







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