Control device for an electric hotplate

Details Control device for an electric hotplate Control device for an electric hotplate

1982-11-10

1985-03-05

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

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

219452, 219445, 219494, 219512, 219513, 337365, H05B 368

Patent

active

045033218

ABSTRACT:
Apart from its conventional power main heating system, which is manually controlled by a power control device, an electric hotplate has an additional heating system, which is connected in parallel to the main heating system and in series with a temperature switch and an additional contact, which is operated by the adjusting shaft of the power control device in an upper or medium power range of the hotplate. The temperature switch is a relatively inertly operating thermal cutout with a high switching hysteresis, which in this case serves as a timing element which is not normally switched on again once it has been switched off. Continuously adjustable timing power control units and seven-cycle switches are provided as the power control device.

REFERENCES:
patent: 2830164 (1958-04-01), Weber et al.
patent: 2870313 (1959-01-01), McCormick
patent: 3364338 (1968-01-01), Holtkamp
patent: 4206344 (1980-06-01), Fischer et al.
patent: 4386263 (1983-05-01), Fischer et al.
patent: 4467180 (1984-08-01), Fischer et al.

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