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:
Jun. 28, 1988
Filed:
Feb. 17, 1987
Applicant:
Inventors:
Kjell Bergman, Vaster.ang.s, SE;
Erik Lassander, Viken, SE;
Assignee:
Asea AB, Vaster.ang.s, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ; H05B / ;
U.S. Cl.
CPC ...
373 93 ; 373 82 ;
Abstract
A hollow arc furnace electrode comprises a central channel formed in its upper part as a tube and in its lower part as a passage extending through a graphite tip of the electrode. A metallic electrode portion is arranged around the central tube above the tip, which electrode portion is provided with channels for liquid coolant flow.