Patent ID: 7699192

Claim:
Discharge device with a metered dose valve for metered discharge of a pressurized liquid, wherein the metered dose valve comprises: a single valve element that is movable into three different selectable positions, and a metering chamber with an associated inlet valve and an associated outlet valve, wherein the outlet valve is closed and the inlet valve is open in a first position of the valve element so that the liquid can fill the metering chamber with a metered dose, wherein the outlet valve is open and the inlet valve is closed in a second position of the valve element so that the liquid is discharged from the metering chamber to the atmosphere, wherein the inlet valve and the outlet valve are closed in an intermediate position of the valve element, wherein the valve element is biased by a spring in a direction toward the first and intermediate positions, wherein the valve element is actuatable and movable between the intermediate and the second position enabling a metered dose of the liquid to be discharged discontinuously or by more than one actuation of the valve element, and further comprising a settable control arrangement having a dispensing position in which movement of the valve element is possible only between said second position and said intermediate position and a non-dispensing position in which the valve element is movable into the first position.