Abstract A refilling device for the flush water container of a watercloset. The device comprises an inlet tube, a refilling valve and an outlet tube. In the outlet tube there is a throttling member which also functions as a non-return valve preventing back flow in the outlet tube. This arrangement is especially intended to be used in combination with a so called back suction guard, that is a means usually comprising flap covered air suction openings on the outlet side of the refilling valve. The invention enables the use of relatively stiff flaps or other back flow preventing means at said air openings so that noise producing air suction through the openings can be completely avoided during normal operation of the refilling device.
A refilling device for the flush water container of a watercloset, said device including a flow duct with a valve, said valve dividing said flow duct into an inlet part and an outlet part, said outlet part comprising, in combination, an air suction means and a non-return valve means, said air suction means being connected to said outlet part between said valve and said nonreturn valve means, said flow duct defining a free air flow passage between said air suction means and said valve and between said suction means and said non-return valve means.
Claim 2
Dependent Claim
94 words
A refilling device for the flush water container of a watercloset, said device including a flow duct with a valve, said valve dividing said flow duct into an inlet part and an outlet part, said outlet part comprising, in combination, an air suction means and a non-return valve means, said air suction means being connected to said outlet part between said valve and said nonreturn valve means, said flow duct defining a free air flow passage between said air suction means and said valve and between said suction means and said non-return valve means.
Claim 3
Dependent Claim
29 words
A device according to claim 1, in which said air suction means includes a check member preventing water from escaping from said outlet part through said air suction means.
Claim 4
Dependent Claim
38 words
A device according to claim 2, in which said non-return valve means is arranged to provide a throttling of the flow in said outlet part, thereby causing a pressure loading the check member of said air suction means.
Claim 5
Dependent Claim
12 words
A device according to claim 2 wherein said valve is float controlled.