Steam iron
AssigneeTunbow Electrical Limited
InventorPak Lee
Life of this patent
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Abstract
A steam iron (10) for clothing has direct measurement of sole plate temperature by a suitable sensor (19). A control device (20) such as a programmable logic controller, holds a characteristic relating sole plate temperature to steam production, and controls opening of an electrically actuated release valve (16) for water from a tank (15) to the sole plate (13). The sensor (19) may also control electrical energy for heating the sole plate (13).
Claims17
A steam iron for clothing, said iron comprising a body, a water tank in said body, a heatable sole plate having an interior side and an exterior side, through passages from said interior side to said exterior side, and a control device operable to release water from said tank to said interior side, wherein a temperature sensor having an electrical output corresponding to a temperature of said sole plate is provided on said sole plate, and said control device is electrically operable in response to said output.
A method of controlling release of water from the water tank to the sole plate of a steam iron for clothing, said method comprising the steps of:
- determining the temperature of said sole plate by means of a sensor having a proportionate electrical output;
- controlling release of water via an electrically actuable device operable in accordance with said output.
Dependencies are inferred from the claim text.