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| Number | Title | Issue Date |
| 6780146 | Methods for applying sliders to reclosable plastic bags Methods are provided for making slider-operated fasteners for use in reclosable plastic bags using at least a double index and dual unit operations. The methods involve forming two preseals, forming two notches within the preseals, applying two sliders into the prev... | 08/24/2004 |
| 6549557 | AC arc furnace with auxiliary electromagnetic coil system for control of arc deflection An AC arc furnace has a plurality of electrodes arranged inside a furnace chamber enclosed by a shell. Each electrode is electrically connected to an electrode power source in series through corresponding auxiliary electromagnetic coils. The electromagnet... | 04/15/2003 |
| 5936996 | Furnace plant A furnace plant which at least one furnace vessel with side walls and a bottom and at least one heat source which by radiation and convection heats molten metal and/or solid metal present in the furnace vessel. At least one two- or multiphase electromagne... | 08/10/1999 |
| 5383218 | Direct current melting furnace with control of deflection of the electric age Direct-current smelting furnace with control of deflection of the electric arc, which comprises an upper electrode (13) with relative return-flow lines and a plurality of bottom electrodes (11) positioned on the hearth of the furnace (12) and arranged in ... | 01/17/1995 |
| 5365542 | Anode for a direct current arc furnaces An anode for a direct current arc furnace is proposed, in which at least part of the area of the furnace receiving the melt is provided on the inside with an electrically conductive refractory lining, which is electrically connected to the conductor locat... | 11/15/1994 |
| 5189682 | Method for increasing the efficiency of a direct current electric arc furnace The invention provides a direct current electric arc furnace which is composed of a feeding system of direct current to the furnace, a movable electrode at the roof of the furnace, and a bottom electrode attached to the bottom of the furnace at the positi... | 02/23/1993 |
| 5138629 | Direct current electric arc furnace The invention provides a direct current electric arc furnace which is composed of a feeding system of direct current to the furnace, a movable electrode at the roof of the furnace, and a bottom electrode attached to the bottom of the furnace at the positi... | 08/11/1992 |
| 4864096 | Transfer arc torch and reactor vessel A transferred arc torch is comprised of a first electrode surrounded by a coil. A second electrode is positioned adjacent to the first electrode so as to provide a small gap therebetween for striking an arc. The second electrode is configured to enable th... | 09/05/1989 |
| 4152532 | Means and method of heating A feeding electrode of a heating means is a hollow cylinder with an open lower end, and is mounted on a frame. An arc-generating electrode is also mounted on the frame, and is disposed inside the feeding electrode. The lower end of the feeding electrode i... | 05/01/1979 |
| 4063931 | Protection of carbon electrodes Carbon articles, particularly carbon electrodes, are protected against corrosive attack in use by fusing material to the article, or applying material to the carbon article which under the conditions of its use is capable of fusing to the carbon article, ... | 12/20/1977 |
| 3975184 | Method and apparatus for production of high quality powders An electric arc which is struck between an electrode and the surface of a pool of molten material rotates under the influence of a magnetic field to thereby free liquid particles from the surface of the pool. The particles produced are quenched in an adja... | 08/17/1976 |
| 3939028 | Protection of carbon articles Carbon articles, particularly carbon electrodes, are protected against corrosive attack in use by fusing material to the article, or applying material to the carbon article which under the conditions of its use is capable of fusing to the carbon article, ... | 02/17/1976 |
