Temperature control device adapted to prevent overheating

Details Temperature control device adapted to prevent overheating Temperature control device adapted to prevent overheating

2007-10-09

2007-10-09

Paschall, Mark (Department: 3742)

Electric heating

Heating devices

With power supply and voltage or current regulation or...

Reexamination Certificate

active

11362135

ABSTRACT:
A temperature control device comprising a heater, a plurality of heater temperature sensors, a heater temperature controller, and a power supply unit, and adapted to prevent overheating and fires caused by the overheating of a heater, is disclosed. The heater adapted to increase in temperature in response to receiving power, each heater temperature sensor is adapted to sense a temperature of the heater and generate a corresponding sensed heater temperature, and the heater temperature controller is adapted to generate an interlock control signal when at least one of the sensed heater temperatures respectively sensed by the plurality of temperature sensors exceeds a heater reference temperature. In addition, the power supply unit is adapted to stop supplying power to a power supply controller, thereby stopping power from being supplied to the heater, when the heater temperature controller provides the interlock control signal to the power supply unit.

REFERENCES:
patent: 4209258 (1980-06-01), Oakes
patent: 4350553 (1982-09-01), Mendes
patent: 6059986 (2000-05-01), Jung et al.
patent: 6167891 (2001-01-01), Kudelka et al.
patent: 6442366 (2002-08-01), Hartley et al.
patent: 2003/0012254 (2003-01-01), Park et al.

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