Multizone graphite heating element furnace

Details Multizone graphite heating element furnace Multizone graphite heating element furnace

1978-01-25

1978-11-21

Envall, Jr., R. N.

Electric heating

Microwave heating

Tunnel furnace

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

Patent

active

041267575

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.

REFERENCES:
patent: 3004090 (1961-10-01), Donovan et al.
patent: 3150226 (1964-09-01), Thorne et al.
patent: 3395241 (1968-07-01), Roman

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