Electronically controlled lavatory flush tank

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(11)

EP 1 426 502 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	29.09.2004 Bulletin 2004/40

(43)	Date of publication A2:
	09.06.2004 Bulletin 2004/24

(21)	Application number: 03026902.1

(22)	Date of filing: 24.11.2003

(51)	International Patent Classification (IPC)⁷: E03D 1/32, E03D 1/14, F16K 21/18, E03D 1/30, E03D 5/10

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

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Priority:

29.11.2002 IT MI20022547

(71)	Applicant: VALSIR S.p.A.
	25078 Vestone (BS) (IT)

(72)	Inventors:
	Varotti, Mario 25078 Vestone (IT) Ferreira, Francisco 25078 Vestone (IT)

(74)	Representative: Cerbaro, Elena, Dr. et al
	STUDIO TORTA S.r.l., Via Viotti, 9 10121 Torino 10121 Torino (IT)

(54)	Electronically controlled lavatory flush tank

(57) An electronically controlled lavatory flush tank (1) includes a hydraulic circuit (2) fitted with at least one valve (3; 4); and the hydraulic circuit (2) in turn has a fill inlet (10, 11) connectable to a water mains, and a vessel (12) having a drain hole (13). The tank (1) includes an electronic level sensor (5) for detecting the level of a fluid in the vessel (12); an electronic control circuit (6); and at least one electromechanical actuator (7; 8) activated by the electronic control circuit (6) for alternatively opening and closing the valve (3; 4) on the basis of the level detected by the level sensor (5).

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