Double-layered ceramic heater

Details Double-layered ceramic heater Double-layered ceramic heater

1993-05-17

1994-07-19

Evans, Geoffrey S.

Electric heating

Heating devices

With heating unit structure

118725, H05B 320, H05B 310, H05B 316

Patent

active

053311345

ABSTRACT:
Proposed is an improved double-layered ceramic heater consisting of an insulating ceramic base plate and two patterned resistance heater element layers formed on both surfaces of the base plate. The improvement comprises forming the patterned heater element layers in such a fashion that the gap space of the heater element layer on one surface, where no heat is evolved by energizing, is opposite face-to-face with the complementary heat-evolving area of the heater element layer on the other surface of the base plate so as to improve uniformity of the temperature distribution over the whole surface of the ceramic heater.

REFERENCES:
patent: 4901051 (1990-02-01), Murata et al.
patent: 5059770 (1991-10-01), Mahawili

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