Electric warmer

Details Electric warmer Electric warmer

1985-03-28

1987-06-09

Sipos, John

Electric heating

Heating devices

Combined with diverse-type art device

219505, 219528, 219549, H05B 102, H05B 302

Patent

active

046721762

ABSTRACT:
In an electric warmer having a temperature sensor and a thermosensitive heater wire arranged in a body thereof, a thermal distance between the temperature sensor and the surface of the body is shorter than a thermal distance between the temperature sensor and the thermosensitive heater wire. The temperature of the thermosensitive heater wire is controlled to vary by a temperature sensing signal from the temperature sensor, thereby effecting comfortable warming of a user in response to the temperature of a thermal load formed by a contacting portion of the user's body.

REFERENCES:
patent: 3564203 (1971-02-01), Naoi et al.
patent: 3814899 (1974-02-01), Gordon et al.
patent: 4485296 (1984-11-01), Ueda et al.
patent: 4575620 (1986-03-01), Ishii et al.

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