Class 373/88 - Electrode

Subclass of Class 373 - Industrial electric heating furnaces
Definition: Subject matter including the structure, or composition of the electrode means.
No. of patents: 60
Last issue date: 11/16/2010

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Number	Title	Issue Date
7835419	Optimized graphite electrode pin configuration A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60. ...	11/16/2010
7606285	Chuck device for electrical discharge machine A chuck device for electrical discharge machine includes a mold fixed to the machine and a connector connected to the discharge head. The connector has a connection rod having a neck and the connection rod is connected to the mold. A plurality of protrusions extend ...	10/20/2009
7386369	Digital electrode observation A system is provided for recording information relating to the condition of electrodes in an electric arc furnace. An imaging apparatus is provided in a consistent position relative to an imaging station. Periodically, the electrode columns are removed from the furn...	06/10/2008
7324576	Joint strengthening ring for graphite electrodes An electrode joint is presented, the joint including two joined graphite electrodes and having a joint strengthening ring interposed between the electrodes, the joint strengthening ring composed of a compressible. ...	01/29/2008
7301982	Male-female electrode joint A graphite electrode joint, where the male tang has a tang factor, defined as the ratio of male tang length to electrode diameter, of at least about 0.60. ...	11/27/2007
7263453	Shaft feedback sensor error detection Methods and apparatus for detecting a sensor angle error in a system in which a measured quantity is determined on the basis of a phase of a signal. A signal derived from the measurement of multiple sensors is ascribed to a vector in a two-dimensional space, and a n...	08/28/2007
7230969	Electrode joint locking system An electrode joint having first and second complementary elements capable of being joined together to form the joint, wherein one of the threaded elements has at least one slot at least partially along its length; and wherein one of the threaded elements includes a ...	06/12/2007
7154932	Refining and casting apparatus A method for refining and casting metals and metal alloys includes melting and refining a metallic material and then casting the refined molten material by a nucleated casting technique. The refined molten material is provided to the atomizing nozzle of the nucleate...	12/26/2006
7103083	Optimized graphite electrode pin configuration A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60. ...	09/05/2006
7016394	Male-female electrode joint A graphite electrode joint, where the male tang has a tang factor, defined as the ratio of male tang length to electrode diameter, of at least about 0.60. ...	03/21/2006
6873641	Method for periodically elongating an electrode for an electric arc furnace A electrode and method for periodic elongation of the electrode of an electric arc furnace, includes screwing to the electrode column, a new electrode and a nipple with a longitudinal hole and a metal rod therein. The rod melts at working temperatures of the furnace...	03/29/2005
6804582	Digital electrode observation A system is provided for recording information relating to the condition of electrodes in an electric arc furnace. An imaging apparatus is provided in a consistent position relative to an imaging station. Periodically, the electrode columns are removed from the furn...	10/12/2004
6385230	Homogeneous electrode of a reactive metal alloy for vacuum arc remelting and a method for making the same from a plurality of induction melted charges A homogeneous electrode of reactive metal alloy comprises an ingot with an axially disposed core made from one induction melted heat of the reactive metal alloy and having a diameter "d" and a length "L" and a body having an outer diameter at least 2 time...	05/07/2002
6363098	Carbon electrode for melting quartz glass and method of fabricating thereof The invention is to offer such a carbon electrode of less consumption and a long useful life and a method of fabricating the same which prevents particles from falling from carbon electrodes into a melting quartz glass, checks occurrence of bubbles in the...	03/26/2002
6137822	Direct current arc furnace and a method for melting or heating raw material or molten material A direct current electric arc furnace for melting or heating raw material or molten material includes a refractory lined vessel for holding raw or molten material in its interior. The furnace includes at least a first top electrode. The first top electrod...	10/24/2000
6113666	Method of magnetically-controllable, electroslag melting of titanium and titanium-based alloys, and apparatus for carrying out same A method of magnetically-controllable, electroslag melting of titanium and titanium-based alloys is provided that includes the effect of an external radial magnetic field on the metallurgical melt. The field forms at least two adjoining melting layers whi...	09/05/2000
6058133	Graphite electrodes incorporating stress-relieving slots A cylindrical graphite electrode with a consumable end includes one or more slots comprising a discontinuous portion of the carbon which extend along the length of the carbon body through at least a portion of the cross-section substantially to the consum...	05/02/2000
5749932	Refractory electrodes for joule heating and methods of using same A certain group of electrically conductive refractory materials presently known for use in high temperature applications as throat constructions, melter sidewalls, forehearth, stacks, port sills, hot face lining for slagging coal gasifiers, slag runners, ...	05/12/1998
5535236	Preheating device The invention relates to an electrically operated preheater for dry material for the manufacture of green carbon-containing masses. The invention includes a preheater having a silo housing, a core, a top and a bottom electrode, a concentric feed pipe, an ...	07/09/1996
5524019	Electrode for electroslag remelting and process of producing alloy using the same An object of the invention is to provide an ingot having improvement of and a prevention of occurrence of segregation when electroslag remelting method is used for producing a large size ingot and a super alloy which is sensitive to segregation. According...	06/04/1996
5208828	Production of transition joints between ferritic steel components A method of producing a transition joint between components produced from two different grades of ferritic steel comprises the steps of successively re-melting in a vacuum arc furnace a first electrode of one of the required grades of ferritic steel and a...	05/04/1993
5166950	Process and apparatus for melting a furnace charge Process for melting a furnace charge, with post-combustion of the smokes by njecting an oxygenated gas in the furnace atmosphere as a series of jets flowing according to a tangential component in the space between electrodes and cylindrical furnace partiti...	11/24/1992
5153895	Nonconsumable, water-cooled electrode for electric metal smelting device A nonconsumable water-cooled electrode for electric metal smelting furnaces which includes inner and outer concentric steel tubes defining an annular space therebetween through which cooling water may be passed. A tungsten tip is attached to the tubes at ...	10/06/1992
5142650	Bottom electrode for a direct current arc furnace The service life of a bottom electrode for a direct current arc furnace for producing steel is prolonged by using ZrB2 type sintered bodies for a contacting pins which constitutes a major part of the bottom electrode wherein the ZrB2...	08/25/1992
5127468	Method and assembly for consumable electrode vacuum arc melting A method and electrode assembly for use in consumable electrode arc melting of metals and alloys, particularly titanium and titanium-base alloys. The method includes forming an assembly including an electrode of the metal or alloy to be melted. An elongat...	07/07/1992
5125003	Bottom electrode cooled sleeve for a metallurgical container The electric connection device comprises an electrode (5), a sleeve (19) mounted around a projecting end part (8) of the electrode (5), and an arrangement for cooling the sleeve (19) with a cooling fluid comprising at least one system (20, 20') of nozzles...	06/23/1992
5117439	Method for operating an electrode graphitization furnace The electric furnace operating cycle time is substantially reduced by directing water into the porous pack of carbonaceous material surrounding the electrodes at a water rate adjusted to maximize vaporization of water into steam within the porous pack whi...	05/26/1992
5046145	Improved arc reactor with advanceable electrode There is disclosed an arc reactor for treating a material in powder form conductive at very high temperatures, the reactor comprising a vertical electrically insulated sleeve cylindrical in shape, an upper electrode coaxially mounted with the sleeve at it...	09/03/1991
4885073	Activated carbon anode including lithium This invention relates to a lithum-containing carbon anode employed in the process of producing aluminum metal where the lithium compounds in an amount of 0.1 to 1.5 percent by weight were added into the carbon mass made of pitch and calcined coke to prod...	12/05/1989
4824733	Anti-oxidant barrier for carbon based material There is described a coating providing an anti-oxidant barrier for carbon based material against oxidation at high temperature (temperature higher than 500° C.), more particularly for graphite electrodes used in electric arc furnaces. The coating compris...	04/25/1989
4786438	Lignosulfonate/urea binder for particulate composites A coherent particulate composite is formed by blending particulate material with a binder containing lignosulfonate and urea....	11/22/1988
4775455	Binder system for anodes, cathodes, and electrodes Describes the use of high performance phenol-formaldehyde resins in the fabrication of anodes, cathodes, and electrodes, for use in metallurgy. A carbonaceous aggregate mixed with binder material is formed into a compacted mass in a desired shape, and the...	10/04/1988
4772514	Protective layer for carbonaceous materials and method of applying the same A protective layer for carbonaceous materials, especially graphite electrodes, applied by plasma-coating method comprised of 65-98 w /o of metal aluminum, 1-20 w /o of combined metal silicon with silica (SiOl) and up to 15...	09/20/1988
4770826	Method of regulating the tar content of anodes intended for the production of aluminum by electrolysis The invention relates to a method of regulating the tar content of precooked anodes intended for the production of aluminum by electrolysis, to an optimum level Bm corresponding to the maximum dry density of the anodes, which utilizes measurements on crud...	09/13/1988
4756814	Method for the individual marking of precooked anodes for the electrolytic production of aluminum The invention relates to a method for the individual marking of precooked anodes used in the production of aluminum by electrolysis in the Hall-Heroult process, and to the anodes produced thereby. These anodes are produced by hot compaction of a carbonace...	07/12/1988
4750187	Graphitic electrode with protective coating The protective coating consists of three layers. As alloying additives in the first and second layer or only in the second layer are used, nickel and iron or their oxides whereby the nickel content is from 0.05 to 0.95% and the iron content is, respective...	06/07/1988
4740990	Graphite electrode with protective coating and method for its production A graphite electrode with protective coating, consisting of a single- or multilayer metallic or metal-oxide coating, and a graphite layer containing graphite, vinyl-acetate as binder and methyl cellulose as thickener, this surface layer being compacted by...	04/26/1988
4726995	Oxidation retarded graphite or carbon electrode and method for producing the electrode A method for treating a carbon or graphite electrode comprising contacting the electrode with a phosphate-containing compound and a halide-containing compound. The treated electrode is oxidation retarded and inhibits non-conductive film formation between ...	02/23/1988
4716572	Method for coating carbon and graphite bodies Coating graphite and carbon bodies with a protective layer containing predominantly silicon, by plasma spraying a silicon powder with a grain size under 0.05 mm and with an argon/hydrogen mixture as the plasma gas at reduced atmospheric pressure of at mos...	12/29/1987
4704230	Lignosulfonate/urea binder for particulate composites A coherent particulate composite is formed by blending particulate material with a binder containing lignosulfonate and urea....	11/03/1987

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Class 373/88 - Electrode