Electrically heatable warming device

Details Electrically heatable warming device Electrically heatable warming device

1995-10-13

1998-06-30

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219439, F27D 1102, A47J 2721

Patent

active

057737959

ABSTRACT:
An electrically heatable warming device for warming up substances contained in a receptacle having a housing whose upper part is constructed as a cup for receiving therein a water bath, the receptacle to be introduced in said water bath. The bottom of the cup is a metallic heating plate and a heating element is at least one PTC resistance element arranged directly below the heating plate. A thermostat switch is provided for controlling the temperature and is connected to a heat-conducting member arranged laterally on the cup wall, the thermostat switch being arranged at a location where it is subjected to the direct influence of the heating element.

REFERENCES:
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patent: 3551644 (1970-12-01), Sano et al.
patent: 3725643 (1973-04-01), Clausse
patent: 3845274 (1974-10-01), Krenke et al.
patent: 4165456 (1979-08-01), Dogliotti
patent: 4376096 (1983-03-01), Bowen
patent: 4701597 (1987-10-01), Braun et al.
patent: 5103801 (1992-04-01), Herring et al.
patent: 5129033 (1992-07-01), Ferrara et al.
patent: 5317128 (1994-05-01), Yao
patent: 5539185 (1996-07-01), Polster

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