Iron comprising a humidity detector for controlling the heating

Details Iron comprising a humidity detector for controlling the heating Iron comprising a humidity detector for controlling the heating

1992-07-16

1994-09-20

Bartis, Anthony

Electric heating

Heating devices

Combined with pressure application means

38 75, 38 82, 219245, 219509, 324695, H05B 102, D06F 7508

Patent

active

053491602

ABSTRACT:
An iron comprises a heating element (97) and heating-control means (96) for the heating element. It has a humidity detector (60) which measures the degree of humidity of the fabric and which influences the electric power dissipated in the heating element. In order to measure the degree of humidity a circuit (99) measures the resistivity of the fabric between two contact electrodes (62a, 62b) and subsequently averages the electric signal resulting from the movement of the iron on the fabric. A circuit (89) may be added which measures the rhythm of the variations of said electric signal and which thus detects whether the iron is in use or not in use.

REFERENCES:
patent: 2313917 (1943-03-01), Brownlee
patent: 2313918 (1943-03-01), Brownlee
patent: 2395787 (1946-02-01), Ledbetter et al.
patent: 3040807 (1962-06-01), Chope
patent: 4877042 (1989-10-01), Downey

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