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:
Jul. 24, 1979
Filed:
Dec. 20, 1977
Applicant:
Inventor:
Ernest R Brazier, Maidenhead, GB;
Assignee:
ERCO Industries Limited, Islington, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
13 1 / ;
Abstract
Electrode breakages in segmented carbon electrodes used in continuous electric arc furnaces are overcome by an electrode assembly procedure in which the nipples which join the electrode segments are screwed together with the appropriate socket in the electrode segment under tension. The tensioning causes honing of the abutting thread faces of the nipple and socket and an increased area of thread content is achieved in the assembled electrode. In this way, improved joint strength and electrical conductivity through the electrode and decreased differential thermal stresses within the joint are achieved.