Liquid filter for a vacuum cleaner

(19)

(11)

EP 0 702 924 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	18.09.1996 Bulletin 1996/38

(43)	Date of publication A2:
	27.03.1996 Bulletin 1996/13

(21)	Application number: 95111182.2

(22)	Date of filing: 17.07.1995

(51)	International Patent Classification (IPC)⁶: A47L 9/18

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

(30)

Priority:

15.07.1994 IT VA940024

(71)	Applicant: GISOWATT S.P.A. INDUSTRIA ELETTRODOMESTICI
	I-21055 Gorla Minore (Varese) (IT)

(72)	Inventor:
	Sozzi, Validio I-21055 Gorla Minore, Varese (IT)

(74)	Representative: Sassi, Romano
	UFFICIO BREVETTI VARESINO Viale Belforte 89 I-21100 Varese I-21100 Varese (IT)

(54)	Liquid filter for a vacuum cleaner

(57) To establish in the vacuum cleaner reservoir of a vacuum cleaner a wet sprinkling process to take away from ambient air and /or from air sucked up at least the dust, such reservoir is provided with a chain of components comprised by:a removable tubular appendix (2) ; a bag-like multitask filter (101); a multitask flanged drum (5), whose upper flange (55) provides a "u" cross- sectioned water tight channel.and whose bottom flange (5') includes a number of sprinkling passages (100); an annular droplet wall or dam (6); a four-legged spacer or support (12); a filter (8) made by mineral imputrescible fibres; and a water pool . The optimum of the members of the chain may be determined by the formula:

wherein
Q = Fluid flow; D= Degree of drop distribution T= Water transfer;
u₀= Optimal wetting (of the filter) u_e= Actual wetting (of the filter)

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