Class / Patent application number | Description | Number of patent applications / Date published |
373088000 | Electrode | 17 |
20080247440 | Long Length Electrodes - An embodiment disclosed herein includes a monolithic graphite electrode. The electrode has a main body having a length of more than 3050 mm. Another embodiment disclosed herein includes an electrode column comprising a plurality of monolithic graphite electrodes. The column has a length of more than 3050 mm of electrode per joint. A further embodiment discussed herein is the practice of increasing the length of the electrode to minimize the occurrence of an electrode joint in the electrode column for a given length. This practice will improve efficiencies for both electrode manufacturers as well as electric arc furnace operators. | 10-09-2008 |
20110268146 | GRAPHITE ELECTRODE WITH AN ELECTRICAL CONNECTING ELEMENT - The invention relates to a graphite electrode with an electrical connecting element as well as to a furnace for graphitizing carbon-containing materials by means of such graphite electrodes. According to the invention, it was found that the drawbacks known from the prior art are eliminated by establishing an electrical connection between the graphite electrode and the connecting element by means of wedge-shaped contacting elements. The contact pressure between the contact element and the wedge-shaped surface on the graphite electrode required for electrical conductivity of the interface can be influenced by means of the wedge angle and the contact surface. | 11-03-2011 |
20110274136 | Reduced Puffing Needle Coke From Coal Tar - A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures. | 11-10-2011 |
20110280274 | Reduced Puffing Needle Coke From Decant Oil - A reduced puffing needle coke is formed from decant oil, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures. | 11-17-2011 |
20110280275 | Reduced Puffing Needle Coke From Coal Tar Distillate - A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures. | 11-17-2011 |
20120106588 | Pool power-based apparatus to control vacuum arc remelting processes - An apparatus for controlling a vacuum remelting furnace comprising a controller capable of adjusting electrical current to an electrode and a controller capable of adjusting the electrode's drive speed. The controllers adjust the current and drive speed based on a predetermined pool power reference value. The apparatus may also comprise a third controller that receives the adjusted current and drive speed as inputs and sends estimated electrode drive speed bias as output to the drive speed controller and estimated current bias as output to the current controller. | 05-03-2012 |
20120269225 | ELECTRODE FOR DIRECT CURRENT CONTINUOUS ARC FURNACE - Bottom electrode or anode for continuous direct current arc furnaces, provided with a cooling system which allows to improve the effectiveness of the cooling action of the bottom electrode, made in the shape of bimetallic billet, for the purpose of ensuring a sufficient height of the portion of said electrode which remains solid during the operation of the furnace, also when there is a very high electric load. | 10-25-2012 |
20120327968 | ELECTRODE ARM OF A METALLURGICAL MELTING FURNACE - The invention relates to an electrode arm ( | 12-27-2012 |
20130148686 | GRAPHITE ELECTRODE - A graphite electrode exhibits oxidation resistance by modifying the outer radial surface characteristics. The outer radial surface may be modified by providing a textured portion which improves water flow while minimizing water absorbtion. Alternately, a layer of flexible graphite or plurality of particles of exfoliated graphite may be disposed on the outer radial surface of the electrode body. | 06-13-2013 |
20140355642 | ELECTRIC ARC FURNACE AND METHOD OF OPERATING SAME - The invention relates to an electric arc furnace and a method for operating same. The electric arc furnace comprises a lower vessel and a lid | 12-04-2014 |
373089000 | Self-baking (i.e., Soderberg) | 1 |
20150043608 | Soderberg Electrode Case Design - An electrode case used to make a self-baking electrode that is consumed in a reducing arc furnace and the electrode made therefrom is described. The electrode case comprises an outer sleeve and a plurality of fins. The outer sleeve is divided into multiple sleeve sections made from a first metal, such that each sleeve section has an outer and inner surface, the multiple sleeve sections capable of being stacked together to form the outer sleeve. The plurality of fins is divided into multiple fin sections made from a second metal, such that each fin section is mechanically coupled to the inner surface of one sleeve section along its length and project radially therefrom along its width. Each fin section has an upper interface region, a central support region, and a lower interface region; the upper, central, and lower support regions having a lattice structure with at least 10% open area. Each fin section exhibits a constant volume of the second metal per unit length with the upper interface region of one fin section being capable of overlapping with the bottom interface region of another fin section. | 02-12-2015 |
373091000 | Sectional | 6 |
20110194582 | 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 1.0. | 08-11-2011 |
20130279534 | Graphite Electrodes - A graphite electrode exhibits oxidation resistance by modifying the outer radial surface characteristics. The outer radial surface may be modified by providing a textured portion which improves water flow while minimizing water absorbtion. Alternately, a layer of flexible graphite or plurality of particles of exfoliated graphite may be disposed on the outer radial surface of the electrode body. | 10-24-2013 |
373092000 | With means to join sections | 4 |
20080304537 | Threaded Pin, Carbon Electrode, and Electrode Assembly - Carbon electrodes have at least one socket with an internal thread to be mated with a threaded pin having at least one external thread. Also such a threaded pin is provided for connecting to such carbon electrodes. The internal thread or external thread of the carbon electrodes and/or the pins are provided with non-load bearing abutment thread windings. | 12-11-2008 |
20090010300 | Electrode Robot For Adding Electrodes Having Threaded Connectors of Various Thread Pitches - A device for adding graphite electrodes onto an electrode column is provided. This device, also known as an electrode robot, includes an engagement mechanism capable of being easily adapted to a plurality of thread pitches so that the device can add different electrodes having threaded connectors of different thread pitches. | 01-08-2009 |
20140328366 | Long Length Electrodes - An embodiment disclosed herein includes a monolithic graphite electrode. The electrode has a main body having a length of more than 3050 mm. Another embodiment disclosed herein includes an electrode column comprising a plurality of monolithic graphite electrodes. The column has a length of more than 3050 mm of electrode per joint. A further embodiment discussed herein is the practice of increasing the length of the electrode to minimize the occurrence of an electrode joint in the electrode column for a given length. This practice will improve efficiencies for both electrode manufacturers as well as electric arc furnace operators. | 11-06-2014 |
20160174303 | FOIL BAG, CARBON CONTAINING NIPPLE, NIPPLE KIT, CARBON CONTAINING ELECTRODE, ELECTRODE KIT, ELECTRODE-NIPPLE SYSTEM, FURNACE AND METHOD OF OPERATING THE FURNACE | 06-16-2016 |