Patent ID: 7673405

Claim:
An electric steam iron comprising: a water tank, a bottom plate having an outlet opening, a heating device in the bottom plate for heating the bottom plate, a temperature controller on the surface of the bottom plate, a steam generator above the bottom plate, the steam generator having a boiling chamber, a heating device to heat the boiling chamber and a temperature controller on a surface of the boiling chamber, the boiling chamber having an inlet in fluid communication with the water tank, an outlet in fluid communication with the outlet opening of the bottom plate, a first heating circuit for providing power to the heating device of the bottom plate, the heating device of the bottom plate being connected in series with the first heating circuit, a second independent heating circuit for providing power to the heating device of the steam generator, the heating device of the steam generator being connected in series with the second heating circuit, an electromagnetic pump interposed between the water tank and the boiling chamber, the electromagnetic pump having an inlet in fluid communication with the water tank and an outlet in fluid communication with the inlet of the boiling chamber, and a temperature controller connected with the electromagnetic pump to shut off the electromagnetic pump when the temperature of the heating device for heating the boiling chamber of the steam generator is at a predetermined low level, to prevent the supply of water to the steam generator when the steam generator is not operational.