High temperature electric furnace with metallic resistances in t

Details High temperature electric furnace with metallic resistances in t High temperature electric furnace with metallic resistances in t

1983-03-10

1985-05-28

Pellinen, A. D.

Industrial electric heating furnaces

Resistance furnace device

With heating element detail

338279, 338295, 373117, 373127, 373128, H65B 340

Patent

active

045204870

ABSTRACT:
A high temperature electric furnace has along its side walls vertical hollow electric resistance heating tubes (57) interconnected in serpentine fashion by conductive bridge plates (55). The tube ends and bridge plates are so contoured as to provide substantially uniform resistance along all possible current paths, thereby to avoid preferential current conduction with localized overheating. The bridge plates (55) and/or the tube ends are supported by air-cooled hollow hangers (28,45).

REFERENCES:
patent: 1809227 (1931-06-01), Baily
patent: 1901499 (1933-03-01), Fahrenwald
patent: 3506771 (1970-04-01), Cole, Jr.
patent: 3985946 (1976-10-01), Werych
patent: 4093816 (1978-06-01), Case
patent: 4101724 (1978-07-01), Heine et al.
patent: 4132886 (1979-01-01), Blodgett
patent: 4135053 (1979-01-01), Kastilahn et al.

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