Multizone graphite heating element furnace

Details Multizone graphite heating element furnace Multizone graphite heating element furnace

1979-04-06

1981-02-03

Envall, Jr., Roy N.

Electric heating

Microwave heating

Tunnel furnace

13 22, 219406, F27B 514, F27D 1102, H05B 306

Patent

active

042490324

ABSTRACT:
This invention relates to an electric furnace and, in particular, an electric furnace having graphite rod heating elements electrically connected into more than one series circuit. In this way, the heating elements can be arranged to provide individually controllable heating zones.
The heating elements are supported by hollow graphite cylinders and flanges extending radially inward from the hollow cylinders. The rod heating elements extend upwardly from the flanges being held near the lower ends thereof.

REFERENCES:
patent: 4126757 (1978-11-01), Smith, Jr. et al.

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