Temperature control method and apparatus

Electric heating – Heating devices – With power supply and voltage or current regulation or...

Reexamination Certificate

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Details

C219S216000, C219S469000, C355S405000, C399S069000

Reexamination Certificate

active

07057141

ABSTRACT:
A thermal mass is characterized by a reference temperature. A thermal interrupter thermally interrupts the thermal mass upon contact. A look ahead processor examines the thermal interrupter ahead of anticipated contact with the thermal mass and determines an amount of anticipated thermal interruption. A PID gain calculator determines a PID gain for a control algorithm based on the determined amount of thermal interruption. A heater processor applies the control algorithm to a heater to heat the thermal mass to a prespecified start temperature which exceeds the reference temperature.

REFERENCES:
patent: 6359269 (2002-03-01), Hayasaki et al.
patent: 2004/0057746 (2004-03-01), York
patent: 2004/0060921 (2004-04-01), Justice et al.
patent: 2004/0108309 (2004-06-01), Dempsey
patent: 2005/0103770 (2005-05-01), Lee

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