(19)
(11) EP 0 418 204 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.05.1991 Bulletin 1991/21

(43) Date of publication A2:
20.03.1991 Bulletin 1991/12

(21) Application number: 90830401.7

(22) Date of filing: 12.09.1990
(51) International Patent Classification (IPC)5: A61H 33/00, A61H 33/02
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR LI LU NL SE

(30) Priority: 15.09.1989 IT 4837689

(71) Applicant: MERLONI TERMOSANITARI S.p.A.
I-60044 Fabriano (Ancona) (IT)

(72) Inventors:
  • Sforza, Walter
    I-60044 Fabriano (AN) (IT)
  • Calearo, Giuseppe
    I-60044 Fabriano (AN) (IT)

(74) Representative: Iannone, Carlo Luigi et al
Ing. Barzanò & Zanardo Roma S.p.A. Via Piemonte, 26
I-00187 Roma
I-00187 Roma (IT)


(56) References cited: : 
   
       


    (54) Self-cleaning device for hydro-massage appliances


    (57) A device for self-cleaning of a hydromassage appliance wherein the centrifugal hydro-massage pump (2) has its suction port connected to the drainage hole (5) of the bath-tub (1) and its delivery port connected to the drainage conduit (6) of the mains by means of a discharge valve (7), comprising a cleaning water supply conduit (20) connected to the mains and including a valve (21), a device (39) for sensing the water level in the bath-tub (1) and for controlling the hydro-massage pump (2), a partial interception device (19) included in the delivery conduit of the pump, a device (28) for operating said cleaning water inlet valve (21) and a device (28) for operating said discharge valve (7).






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