Flush tank drain valve assembly with a system for regulating the amount of water drained

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(11)

EP 1 795 661 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	19.12.2007 Bulletin 2007/51

(43)	Date of publication A2:
	13.06.2007 Bulletin 2007/24

(21)	Application number: 06125653.3

(22)	Date of filing: 07.12.2006

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International Patent Classification (IPC):

E03D 1/14^(2006.01)

E03D 1/33^(2006.01)

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

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Priority:

09.12.2005 IT MI20052354

(71)	Applicant: Oliveira & Irmao S.A.
	3800 Aveiro (PT)

(72)	Inventors:
	Moura De Oliviera, Antonio Manuel 3800-25 Aveiro (PT) Lopes Dias De Figueiredo, Noé 3800-716 Aveiro (PT) Pacheco Teixeira, Pedro Miguel Lote 33 - R/c D 8600-775 Lagos (PT)

(74)	Representative: Jorio, Paolo et al
	Studio Torta S.r.l. Via Viotti, 9 10121 Torino 10121 Torino (IT)

(54)	Flush tank drain valve assembly with a system for regulating the amount of water drained

(57) In a flush tank drain valve assembly (1) with a regulating system for adjusting the amount of water drained, a supporting structure (2), extending along an axis (A) and including a vessel (6), houses a valve body (3) which slides along the axis (A) and has a shutter (26) cooperating with a fluidtight seat (10); the vessel (6) houses at least one float (41) cooperating selectively with the valve body (3); the valve assembly (1) has a regulating system (75) for adjusting the water level inside the vessel (6) and hence the level (H1) activating the float (41); and the regulating system (75) is defined by a window (14) formed through a lateral wall (11) of the vessel (6), and by a gate (16) closing the window (14) and movable to adjust the opening of the window (14).

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