(19)
(11) EP 0 332 893 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.11.1989 Bulletin 1989/48

(43) Date of publication A2:
20.09.1989 Bulletin 1989/38

(21) Application number: 89103080.1

(22) Date of filing: 22.02.1989
(51) International Patent Classification (IPC)4: D06F 39/08
(84) Designated Contracting States:
DE ES FR GB NL SE

(30) Priority: 14.03.1988 IT 1976588

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

(72) Inventor:
  • Merloni, Antonio
    I-60044 Fabriano (Ancona) (IT)

(74) Representative: Frignoli, Luigi et al
Ing. A. Giambrocono & C. S.r.l. Via Rosolino Pilo, 19/B
20129 Milano
20129 Milano (IT)


(56) References cited: : 
   
       


    (54) Method and device for economizing detergent, particularly for an automatic-cycle washing machine


    (57) A method for economizing detergent for an automatic-cycle washing machine (60) comprising a tub (61) housing a rotary drum (62), a discharge pipe (3) connecting said tub to a pump (2) and into which a filter (65) is connected, and a delivery pipe (4) from said pump (2), characterised in that the wash water fed into the machine undergoes a pulsating movement by way of the pump, so that said pump (2) and the relative pipes (3, 4) are washed and the detergent present in the water is dissolved.
    This method is implemented by a device characterised by comprising means for effecting the pulse-operation of the pump.







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