Non-conductive plugger foot

Details Non-conductive plugger foot Non-conductive plugger foot

1985-10-07

1986-10-14

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204279, 266 45, 266236, C25C 314, C21B 712, C21C 542

Patent

active

046171002

ABSTRACT:
A non-conductive plugger foot is disclosed for breaking through a solidified crust of electrolyte on an electrolytic reduction cell. The plugger foot includes a cylindrical sleeve having at least one downwardly depending leg attached thereto. The opposite end of the sleeve is connected to a vertically movable rod attached to a fluid or air actuated apparatus. A hollow cylindrical shell, which is closed at one end, is designed to receive the sleeve in its opposite end. The sleeve is inserted into the shell such that the leg is completely enclosed therein. The shell is then filled with a heat resistant, non-conductive refractory material which forms a permanent bond between the sleeve, the leg and the shell.

REFERENCES:
patent: 1572253 (1926-02-01), Tilson
patent: 2826793 (1958-03-01), Flickinger, Sr. et al.
patent: 3681229 (1972-08-01), Lowe
patent: 4049529 (1977-09-01), Golla
patent: 4230308 (1980-10-01), Gueguen
patent: 4328085 (1982-05-01), Friedli et al.
patent: 4471950 (1984-09-01), La Bate

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