Discharge device for a flush tank

(19)

(11)

EP 1 016 763 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	16.08.2000 Bulletin 2000/33

(43)	Date of publication A2:
	05.07.2000 Bulletin 2000/27

(21)	Application number: 99125240.4

(22)	Date of filing: 17.12.1999

(51)	International Patent Classification (IPC)⁷: E03D 1/14

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

(30)

Priority:

30.12.1998 IT TO981116

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

(72)	Inventor:
	Moura de Oliveira, Antonio Manuel 3800 Aveiro (PT)

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

(54)	Discharge device for a flush tank

(57) A discharge device (1) for a flush tank, designed to selectively permit full or partial discharge of the water in the flush tank, and having a main valve (5) for selectively opening and closing at least one drain hole (4) in the flush tank; a float (25) housed movably inside a vessel (8) fittable integrally to the flush tank; stop means (26) for arresting the float (25) and connected integrally to the main valve (5); auxiliary valve means (19) for selectively opening and closing the vessel (8) to vary the amount of water in the vessel and so reduce the thrust exerted on the main valve (5) by the buoyancy of the float (25); and reversible connecting means (31, 32, 35, 36) for reversibly connecting the auxiliary valve means (19) and the main valve (5) when partial discharge is activated.

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