Negative thermal expansion metal electrically connected to motor

Electric heating – Metal heating – Of cylinders

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Details

219 1055B, 237 46, H05B 664

Patent

active

046084746

ABSTRACT:
A high frequency heating apparatus including a motor having a first and second windings, the apparatus comprising damper means for controlling the intake of air into a heating chamber and negative thermal expansion metal for moving the damper means in response to the changes in the shape of the negative thermal expansion metal means, the negative thermal expansion metal means being electrically coupled to the second winding of the motor.

REFERENCES:
patent: 4284235 (1981-08-01), Diermayer et al.
patent: 4369347 (1983-01-01), Shin

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