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| Number | Title | Issue Date |
| 7040122 | Process for production of molten glass The invention concerns a process and a device from the production of molten glass. According to the invention, measures will be taken to lead the current of the molten glass through the tank furnace so that cutoffs of the glass current between the surface of ... | 05/09/2006 |
| 7027481 | Method and electric furnace for melting vitreous materials A method and apparatus for melting vitrifiable materials employs a melting tank for containing a molten bath with an upper surface. The tank has a floor and side walls and channels for discharging molten materials. A crown is situated above the floor and vitrifiable... | 04/11/2006 |
| 7021082 | Method and apparatus for suppressing oxygen bubble formation in glass melts In the method of making glass a glass melt is formed from starting materials in a melt apparatus, which includes at least one metal part having a metal surface in contact with the glass melt in a first region of the glass melt having a predetermined oxygen partial p... | 04/04/2006 |
| 6339610 | Glass melting tank and process for melting glass A glass melting tank with at least one pair of heating electrodes projecting into the glass melt and a process for melting glass are described. The glass melting tank has, at least in the area of the melt, a narrowed cross section area and the glass melti... | 01/15/2002 |
| 6154481 | Method of operation of a glass melting furnace and a glass melting furnace for the practice of the method In a glass melting furnace, a radiation screen wall is installed between a melting area and a refining area with a refining bank. This radiation screen wall leaves a flow path above the melt surface of the glass bath for the return flow of at least part o... | 11/28/2000 |
| 5926498 | Melting furnace for the thermal treatment of special waste materials containing heavy metal and/or dioxin A melting furnace for the thermal treatment of special waste materials containing heavy metal and dioxin is provided. The melting furnace includes a main furnace vessel, the main furnace vessel having a melting end for receiving a melt, and a gas chamber ... | 07/20/1999 |
| 5862169 | Float glass production A float glass production facility comprising a furnace including a melter, a refiner and a working end, the working end having two or more exits, each of which supplies a separate canal and float glass forming chamber, the working end being operable so th... | 01/19/1999 |
| 5574746 | Melting furnace for thermal treatment of special wastes containing heavy metals and/or dioxin A melting furnace for thermal treatment of heavy metal-containing and/or dioxin-containing special wastes, including a clog preventing system including a principal furnace vessel, which exhibits a melting tank for holding a melt; at least one feeder for f... | 11/12/1996 |
| 5550857 | Method and apparatus for waste vitrification A waste vitrification apparatus (10) having rotatable mixer impeller (16) functioning as a shaft electrode (60) and metallic vessel (14) functioning as a vessel electrode (62). A stream (12) of waste material and vitrifiable material are mixed and melted ... | 08/27/1996 |
| 5271032 | Lid heater for glass melter A glass melter having a lid electrode for heating the glass melt radiantly. The electrode comprises a series of INCONEL 690 tubes running above the melt across the melter interior and through the melter walls and having nickel cores inside the tubes begin... | 12/14/1993 |
| 5241558 | Vertical glass melting furnace A vertical glass melting furnace of the type having an inlet for raw materials at the top thereof, an outlet for molten glass at the bottom thereof, and a tabular electric resistance heating element for melting which is immersed at some level in molten gl... | 08/31/1993 |
| 4932035 | Discontinuous glass melting furnace Furnace has a melting section into which batch is fed to a glass bath heated by electrodes, a homogenizing section, and a clarifying section therebetween in which fossil fuel burners heat the surface of the bath. The clarifying section is separated from t... | 06/05/1990 |
| 4882736 | Method for efficiently using flue gas energy in a glass furnace Raw materials are fed into the charging end of a melting section which is heated by electrodes in the glass bath. The melted charge is then clarified under fossil fuel burners in a clarifying section, where the highest temperature of the furnace is mainta... | 11/21/1989 |
| 4852118 | Energy saving method of melting glass Disclosed are an energy saving method for melting glass in and a glass melting furnace for the practice of the method. A charge is melted in a melting section, clarified in a clarifying section adjoining the melting section, and then homogenized in an adjoinin... | 07/25/1989 |
| 4831633 | Glass melting furnace Glass is made from a feed consisting of batch materials and cullet in a furnace that is both electrically and gas fired. A batch-only hopper discharges through a blanket conveyor to a batch melting chamber that is electrically fired and is connected via a... | 05/16/1989 |
| 4789990 | Glass melting furnace of improved efficiency Disclosed is an improved efficiency glass melting furnace and a method of operation in which a mixture, or batch, is fed at a narrow side of a rectangular glass melting tank onto the molten glass mass (or bath) across the full width thereof. The furnace i... | 12/06/1988 |
| 4433995 | Glass manufacture A continuous process of making glass, in which a vitrifiable batch is fed to a furnace equipped with heating devices for melting the batch so as to produce molten glass. The furnace has a melting end into which the batch is fed and a delivery end remote f... | 02/28/1984 |
| 4426217 | Electric melting of solidified glass in melting units A method and apparatus for electrically melting solidified glass in difficult to reach regions of a glass melting furnace not readily accessible with fossil fuel heating means and, more particularly, to an electrode arrangement for electrically heating so... | 01/17/1984 |
| 4421538 | Device for the manufacture of glass filaments A forehearth supplied with molten glass from a tank furnace, with bottom passages overlying bushings for the extrusion of vitreous filaments, forms an elongate chamber whose sidewalls are penetrated by heating electrodes spaced apart in the longitudinal d... | 12/20/1983 |
| 4169963 | Electrically heated melting furnace for mineral materials An electrically heated melting furnace for the melting of mineral materials, such as frits, (vitreous) enamels and the like, wherein a bath of molten material contained in a tank is heated by means of electrodes contacting the molten material and having a... | 10/02/1979 |
| 4118215 | Method and apparatus for heating glass in a forehearth A method and apparatus are disclosed for heating molten glass in a forehearth of a glass furnace connected to a plurality of feeder conduits. An electrode is positioned at the inlet of the forehearth and another electrode is positioned at the inlet of at ... | 10/03/1978 |
| 4110098 | Molten glass refining apparatus The improvement in an apparatus for refining glass being fed along a channel wherein the molten glass is foamed throughout its thickness, the improvement involving an increase in the width of the channel at the location of foaming. Also, the channel is pr... | 08/29/1978 |
| 4097259 | Feeder conduits for a glass furnace with heating electrodes A feeder conduit is disclosed for conveying molten glass from a forehearth of a glass furnace to a glass forming machine. The feeder conduit includes an elongated conduit which receives molten glass from the forehearth and delivers the molten glass to an ... | 06/27/1978 |
| 4029887 | Electrically heated outlet system An apparatus for heating glass-forming materials within a delivery conduit extending from an electric glass melting furnace to a connector channel is disclosed. The conduit is made from an electrically conductive refractory metal such as molybdenum and is... | 06/14/1977 |
| 3942968 | Method and apparatus for melting and subsequently refining glass The present invention provides a method of melting glass, whereby in a glass melting furnace having electrodes positioned in a plurality of levels or planes the glass is melted in a vertical passage and thereafter discharged via an outlet passage at the b... | 03/09/1976 |
