Monolithic honeycomb form electric heating device

Details Monolithic honeycomb form electric heating device Monolithic honeycomb form electric heating device

1974-10-08

1976-09-21

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

219374, 219543, 252502, 338223, 338283, 427249, H05B 310

Patent

active

039821005

ABSTRACT:
A monolithic electrical resistance heater element is produced from mixing particles of a conductive carbonaceous pyropolymer that have been deposited on a refractory metal oxide with a heat unifiable ceramic, such as alumina, cordierite, spodumene, etc., and then forming a resulting rigid "honeycomb type" of semiconductive ceramic substrate. The carbonaceous pyropolymer particles are preferably formed from heating an organic pyrolyzable substance in contact with alumina particles, or other metal oxide particulates, at a temperature above about 400.degree. C.

REFERENCES:
patent: 2767289 (1956-10-01), Robinson
patent: 3032635 (1962-05-01), Kraft
patent: 3163841 (1964-12-01), Willett
patent: 3213177 (1965-10-01), Diefendorf
patent: 3345448 (1967-10-01), Malkin
patent: 3651386 (1972-03-01), Youtsey et al.
patent: 3700857 (1972-10-01), Brandes et al.
patent: 3825460 (1974-07-01), Yoshikawa et al.

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