Self-regulating heater with a semiconductor heating element...

Details Self-regulating heater with a semiconductor heating element... Self-regulating heater with a semiconductor heating element...

2008-09-30

2008-09-30

Paschall, Mark (Department: 3742)

Electric heating

Heating devices

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

C219S501000, C219S505000, C323S907000

Reexamination Certificate

active

11464013

ABSTRACT:
A self-regulating heater including a semiconductor for converting electrical energy to heat. A temperature sensitive element is used to bias the semiconductor as a function of temperature. The heating element has an advantage that its maximum temperature is limited by the biasing network, yet full power is available just below the limit.

REFERENCES:
patent: 3987311 (1976-10-01), Thornburg
patent: 4050427 (1977-09-01), Hollins
patent: 4134447 (1979-01-01), Frosch et al.

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