Electrical resistance furnaces

Details Electrical resistance furnaces Electrical resistance furnaces

1982-03-18

1984-03-06

Envall, Roy

Industrial electric heating furnaces

Resistance furnace device

With heating element detail

373130, 373133, 373125, 373137, H05B 306

Patent

active

044358199

ABSTRACT:
An electrical resistance furnace which includes a number of electrical resistance heating elements arranged around the sides and surrounding a space containing a crucible or similar container to be heated, the elements being supported at least at their ends by fire-brick material and being surrounded by heat insulation, wherein both ends of each resistance element extend through apertures in the fire-brick material so that by removing part of the heat insulation access may be gained to both ends of the element from the exterior of the furnace to permit removal and repair or replacement of the element.

REFERENCES:
patent: 2969412 (1961-01-01), Frank
patent: 4238635 (1980-12-01), Saarivirta et al.

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