Monolithic honeycomb form electric heating device

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

1974-10-08

1976-11-30

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

219374, 219543, 252477R, 338292, 427249, H05B 310

Patent

active

039951430

ABSTRACT:
A monolithic electrical resistance heater device is produced from placing a semiconducting coating of carbonaceous pyropolymer on the surfaces of a rigid "honeycomb type" of ceramic substrate and connecting electrodes to spaced, opposing portions thereof. The carbonaceous coating, or layer, is formed from heating an organic pyrolyzable substance in contact with the substrate surfaces at a temperature above about 400.degree. C.

REFERENCES:
patent: 2767289 (1956-10-01), Robinson
patent: 3032635 (1962-05-01), Kraft
patent: 3075494 (1963-01-01), Toulmin, Jr.
patent: 3163841 (1964-12-01), Willett
patent: 3172774 (1965-03-01), Diefendorf
patent: 3345448 (1967-10-01), Malkin
patent: 3502596 (1970-03-01), Sowards
patent: 3651386 (1972-03-01), Youtsey et al.
patent: 3825460 (1974-07-01), Yoshikawa et al.

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