Henry E Grindstaff

US Patent:

46263330, Dec 2, 1986

Filed:

Jan 28, 1986

Appl. No.:

6/823438

Inventors:

Duane R. Secrist - Elizabethton TN
James M. Clark - Johnson City TN
Henry E. Grindstaff - Memphis TN

Assignee:

Great Lakes Carbon Corporation - Briarcliff Manor NY

International Classification:

C25C 312

US Classification:

204286

Abstract:

An anode assembly for an electrolytic cell for molten electrolysis has a cermet connector with a lower electrical resistivity than the anode threaded into the cermet or ceramic anode in the green or calcined state and then sintered to form an anode assembly having a low joint resistance at the cell operating temperature.

US Patent:

44433140, Apr 17, 1984

Filed:

Mar 16, 1983

Appl. No.:

6/475951

Inventors:

Duane R. Secrist - Elizabethton TN
James M. Clark - Johnson City TN
Henry E. Grindstaff - Elizabethton TN

Assignee:

Great Lakes Carbon Corporation - New York NY

International Classification:

C25C 306
C25C 312
C25C 316

US Classification:

204243R

Abstract:

An improved anode assembly for an aluminum electrolysis cell is formed by the process of shaping an anode 10 and a cermet connector 12 from powders, machining said articles, and sintering said articles. The cermet connector mates with the anode via a threaded joint located at its region of high temperature 14 during operation thereof to avoid excessive ohmic losses. Mechanical support can be provided by the threaded joint or through the use of separate mechanical suspension bars 22.