Heating apparatus

Details Heating apparatus Heating apparatus

1991-04-30

1992-07-07

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

118725, 219411, H05B 364

Patent

active

051285150

ABSTRACT:
A heating apparatus comprising a refractory block in which coil heater is embedded, an inner metal cover located outside the refractory block, a water cooling pipe located outside the inner cover, an outer metal cover located outside the water cooling pipe, a terminal electrically connected to end of the coil heater and passed through the inner and outer covers, and a power supply electrically connected to the terminals to supply current to the coil heaters. Each of the terminals is fixed to the outer cover by insulating members but left free from the inner cover.

REFERENCES:
patent: 2145324 (1939-01-01), Stauss
patent: 2969412 (1961-01-01), Frank
patent: 3387078 (1968-06-01), Montgomery
patent: 3804967 (1974-04-01), Werych
patent: 4081313 (1978-03-01), McNeilly
patent: 4348580 (1982-09-01), Drexel
patent: 4699084 (1987-10-01), Wilson
patent: 5001327 (1991-03-01), Hirasawa

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