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:
Oct. 03, 1978
Filed:
Oct. 19, 1976
Franz Schieber, Rothenbach, DE;
C. Conradty Nurnberg GmbH & Co. KG, Gruntal, DE;
Abstract
A shaped body or structure of carbon, in particular a carbon electrode, preferably having a largely round cross-section and being provided in its surface with at least one slot extending in a generally longitudinal direction and extending to the inside of the structure. The slot is filled by a refractory filler material that substantially reduces the oxidation of the slot walls during operation of the electrode and which allows for variations of the slot width where a temperature gradient develops within the electrode cross-section because of temperature changes occurring during operation in an electric arc-furnace. The filler material is adapted as to its physical and chemical properties of the electrode material and is anchored within the slot.