Patent · US Expired

Graphite electrode nipple

US4495624A · kind A · utility

10Cited by

4References

8Claims

0Family size

Inventors

Uwe Reimpell · Hanau, DE
Anton Wamser · Hanau, DE
Otto W. Stenzel · Zöblitz, DE
Wilhelm Burgmann · Yutz, FR

Key dates

Filing date	Nov 16, 1981
Grant date	Jan 22, 1985
Priority date	—
Expiry date	Nov 16, 2001

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A graphite nipple projecting from one end of a graphite electrode portion of the type used in an electric furnace has a supporting face for receiving a non-graphite portion of a clamping device in shape-locking engagement for holding the electrode for use. It also has a conventional screw-thread surface for joining the nipple to another electrode portion for extending the electrode. The supporting face does not alter the conventional screw-thread surface arrangement for joining electrode portions so that specially-shaped and thus costly electrode-supporting nipples are not required in addition to the conventionally-shaped nipples for joining electrode portions, and a graphite screw-thread does not have to be unscrewed for the same, which unscrewing frequently broke the nipple or electrode portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.