Patent · US Expired

Feed through structure for electrodes in electric furnaces

US4587659A · kind A · utility

4Cited by

2References

5Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Karl-Heinz Ungar · Mülheim, DE
Hermann Cepin · Duisburg, DE

Key dates

Filing date	Dec 21, 1984
Grant date	May 6, 1986
Priority date	—
Expiry date	Dec 21, 2004

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27D11/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A feed through structure for passing electrodes through a furnace cover into the interior of an electro furnace such as an electric arc or reduction furnace includes thin walled, water cooled hollow cylinders made of electrically conductive material and being provided in apertures in the cover; electrodes are passed through cylinders and electrically conductive hollow copper bridges interconnect all of said hollow cylinders to the extent they pertain to different phases; these bridges are provided in pairs for separately connecting the inside and outside ends of the hollowed cylinders.

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