Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1974-05-31
1976-08-03
Bartis, A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
126110R, 165122, 165126, 219364, 219367, 219370, 219376, H05B 102, F24H 304
Patent
active
039731014
ABSTRACT:
An electric furnace comprised of an outer casing, a support casing and a heater casing, the outer casing has a substantially rectangular cross-section with air inlet openings formed in the lower portion of the back wall and in the upper portion thereof whereas air outlet openings are formed in the lower portion of the front and side walls of the same. The support casing is mounted within and in space relationship with the outer casing and the heater casing is within but spaced from the support casing, both support and heater casings are provided with a circular opening in registry at the upper portion of their back wall. An air propeller is mounted onto the support casing in alignment with the circular openings to blow air from the inlet openings, through the circular openings, along a plurality of elongated electrical heating elements vertically disposed in the heater casing, and outwardly through further openings formed in the bottom of the heater casing, in the lower portion of the support casing and through the outlet openings of the outer casing. Control means are provided to turn the heating elements on in timed sequence. The speed of the propeller can also be automatically increased in direct relation to the number of heating elements turned on. Various safety controls can also be provided.
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