Patent ID: 8122814

Claim:
Device for dispensing a quantity of a liquid, comprising: a tank for containing the liquid; a pump for pumping the liquid out of the tank; an energizing circuit comprising a pumping circuit for energizing the pump; a switching device which is arranged in the pumping circuit, which is capable of either interrupting or closing the pumping circuit, and which is biased to an opened position for interrupting the pumping circuit; means which are adapted to act on the switching device in order to keep the switching device in a closed position when a level of the liquid in the tank is above a predetermined minimum level; and a boiler having an interior space for containing the liquid, and heating means for supplying heat to the liquid, wherein the pumping circuit comprises a combination of an additional switching device and a sensing member for sensing the temperature of liquid that is present inside the boiler, which combination is adapted to interrupt the pumping circuit when the temperature of the liquid is below a set point of the switching device.