(19)
(11) EP 0 426 226 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.01.1992 Bulletin 1992/04

(43) Date of publication A2:
08.05.1991 Bulletin 1991/19

(21) Application number: 90202777.0

(22) Date of filing: 18.10.1990
(51) International Patent Classification (IPC)5: B05B 9/03, B05B 12/02, B05B 12/04
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 02.11.1989 IT 4688089

(71) Applicant: IMOVILLI POMPE - S.P.A.
I-42100 Reggio Emilia (IT)

(72) Inventors:
  • Imovilli, Danilo
    I-42100 Reggio Emilia (IT)
  • Conza, Renato
    I-42100 Reggio Emilia (IT)

(74) Representative: Corradini, Corrado et al
Studio Ing. C. CORRADINI & C. S.r.l. 4, Via Dante Alighieri
42100 Reggio Emilia
42100 Reggio Emilia (IT)


(56) References cited: : 
   
       


    (54) Distribution apparatus for spray devices


    (57) A distribution apparatus for delivery devices of the type comprising means (22) for connecting a pump exit duct (6) alternatively to discharge (7) and/or to a duct (5) which via a distribution valve feeds at least two delivery ducts (121), (122), there being located in the discharge duct a venturi tube (9), into the main duct of which there extend a bypass duct controlled by a valve (8), and, controlled by a proportional constriction (12), a duct (11) which is normally closed but is opened when one or other of the delivery ducts (121) or (122) is closed, there being also provided two branches which connect the delivery ducts (121) and (122) to the suction region of the venturi tube (9) via two disc-­and-spring valves which are normally closed when the delivery ducts are fed with pressurized liquid, and open when the feed to said ducts is interrupted.







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