Electric furnace wall construction

Details Electric furnace wall construction Electric furnace wall construction

1975-10-29

1976-10-19

Envall, Jr., R. N.

Electric heating

Microwave heating

Tunnel furnace

219550, 110 1A, H05B 306

Patent

active

039872378

ABSTRACT:
An electric furnace wall construction is provided and comprises a plurality of layers of heat insulating fiberboard overlying each other. Certain of the layers of fiberboard are apertured to receive ceramic hangers which support a serpentine arrangement of electric strip resistance heaters. The construction is held together by a plurality of studs and mating locking washers.

REFERENCES:
patent: 1768865 (1930-07-01), Smalley
patent: 2591723 (1952-04-01), Sampson
patent: 3368802 (1968-02-01), Morgan et al.

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