Industrial electric heating furnaces – Arc furnace device – Electrode
Patent
1984-08-03
1987-10-27
Envall, Jr., Roy N.
Industrial electric heating furnaces
Arc furnace device
Electrode
H05B 714
Patent
active
047034920
ABSTRACT:
The present invention relates to joined carbon electrodes, each of which has a mark formed on such a part of the circumferential surface of each of the first and second carbon electrodes that upon the coinciding of the marks with one another the ends of the screws essentially coincide with one another.
REFERENCES:
patent: 3468563 (1969-09-01), Duret
patent: 4349910 (1982-09-01), Belz
patent: 4375340 (1983-03-01), Faircloth, Jr.
Kubota Tomiyasu
Sekiguchi Yoshishige
Envall Jr. Roy N.
Showa Denko Kabushiki Kaisha
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