Solid state temperature controller

Details Solid state temperature controller Solid state temperature controller

1983-07-08

1985-10-29

Green, Randall L.

Stoves and furnaces

Liquid heater

Open-top vessel that may include lid

219442, 219419, 219510, A47J 2700

Patent

active

045495270

ABSTRACT:
A temperature controller for a deep fat fryer including a temperature sensing circuit that determines the temperature of cooking oil in the deep fat fryer and which is connected to a temperature control circuit that controls the deep fat fryer heat source in providing heat to the cooking oil in response to a set temperature from an external input device. The control circuit also includes an anticipation circuit that variably modulates the heating source before the cooking oil temperature approaches the set temperature. The temperature control circuit further includes a resistor divider network that provides selected voltages representing reference temperatures and which are input to several operational amplifiers for controlling the heat source.

REFERENCES:
patent: 3800779 (1974-04-01), Moore et al.
patent: 3938498 (1976-02-01), Price
patent: 3977390 (1976-08-01), Fogel et al.
patent: 4102330 (1978-07-01), Hutchinson
patent: 4465228 (1984-08-01), Mori et al.

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