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:
Jan. 30, 1990
Filed:
Jun. 01, 1988
Ronald D Argent, Allison Park, PA (US);
King, Taudevin & Gregson (Holdings)Limited, Sheffield, GB;
Abstract
An advanceable refractory ceramic electrode is provided for use in the electrical heating of a molten mass in a furnace. The electrode has a tubular ceramic body having a terminal region that in use is immersed in the molten mass and a basal region that in use fits sealingly into the lining. A core is a close fit into the electrode body and projects from one end thereof. At least the outer surface of the core is of a metal that is non-reactive with the material of the refractory ceramic electrode at the temperature of the molten mass and that is itself molten at said temperature so that in use of the electrode the metal in the terminal region melts and establishes an intimate contact between the core and the electrode body. A connector comprises a socket in which core projecting from the electrode body fits to establish a current path to the electrode and a sleeve surrounding the socket and defining an abutment for the electrode body. A jack is provided for operative connection between the connector and support so as to advance the electrode into the furnace. The electrode body is preferably of fired tin oxide and the core may be at least one rod or tube of fired tin oxide coated on its outer surface with metallic silver.