The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 1986
Filed:
Dec. 21, 1984
Applicant:
Inventors:
Karl-Heinz Ungar, Mulheim, DE;
Hermann Cepin, Duisburg, DE;
Assignee:
Mannesmann Aktiengesellschaft, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
373 96 ; 373 69 ;
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.