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| Number | Title | Issue Date |
| 7013677 | Device for glass melt delivery and method for using them The present invention provides devices for glass melt devlivery and methods for using these devices. In these devices, a delivery nozzle comprising at least one platinum group metal material is directly heated by electricty. To facilitate heating, a cylindrical heat... | 03/21/2006 |
| 6980580 | Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace The electrode arrangement uses vertically oriented electrodes with side wall contacts for an electrothermic smelting furnace for aluminum production. The side wall contacts are radially moveable into the furnace to compensate for wear on the contacts. The side wall ... | 12/27/2005 |
| 6938441 | Method and apparatus for heat treatment of glass material and natural materials specifically of volcanic origin A method of heat treatment of glass materials and natural materials specifically of volcanic origin according to which the treated material is exposed to microwave radiation at a frequency range from 1 MHz to 10 GHz and temperature range from the ambient temperature... | 09/06/2005 |
| 6735237 | Device for producing a glass melt The invention relates to a device for the production of a glass melt from a batch; with a melt tank (1) that has peripheral walls (1.1-1.4) and a bottom (1.5); with a discharge channel (2) which is located under the bottom (1.5) of... | 05/11/2004 |
| 6085551 | Method and apparatus for manufacturing high melting point glasses with volatile components In the manufacturing of high melting point glasses with volatile components, in particular of glasses from the group of boron glasses and borosilicate glasses, a furnace is provided that has a superstructure, fossil fuel burners, and a melting tank. In fr... | 07/11/2000 |
| 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 |
| 5367532 | Furnace for the continuous melting of oxide mixtures by direct induction with high frequency, a very short refining time and a low energy consumption Furnace for the continuous melting of mixtures of oxides by direct induction at high frequency and a very short refining time and with a low energy consumption, comprising an intake (14) and a nozzle (15) for the continuous discharge of oxides into a meta... | 11/22/1994 |
| 5319669 | Hazardous waste melter An apparatus for processing various hazardous waste materials by melting in a vessel for subsequent solidification is disclosed which includes a seal for the cover thereof. Melter includes a high-speed mixing impeller powered by a drive shaft which extend... | 06/07/1994 |
| 5304701 | Melting furnace for treating wastes and a heating method of the same A melting furnace for treating wastes is provided which has a container equipped with a feed port for a glass raw material and wastes to be treated at the top thereof and a discharge port for molten glass containing said wastes at the bottom thereof, the ... | 04/19/1994 |
| 4895678 | Method for thermal decomposition treatment of radioactive waste A method for thermal decomposition treatment of a radioactive waste uses an apparatus comprising a container for holding molten matter of a radioactive waste containing a sodium compound, a pair of electrodes contacting the molten matter, and a power sour... | 01/23/1990 |
| 4638490 | Melting furnaces A melting furnace is disclosed which heats by joule effect to supply molten material of uniform temperature at the floor of the melter. During formation of molten material, an essentially isothermal condition across a given horizontal plane of the body of... | 01/20/1987 |
| 4627069 | Joule melter for the processing of radioactive wastes The joule melter has an outer cylindrical electrode which forms the outer wall of the melt containment, an inner cylindrical electrode which protrudes upward in the containment and forms the outlet for the melt, thus, also determining the depth of the mel... | 12/02/1986 |
| 4475206 | Method and device for tapping a furnace containing a tappable melt A method for tapping a furnace contains a tappable melt of silicon dioxide to be reduced to silicon with carbon, which comprises providing a graphite tap pipe on the furnace, and electrically heating the tap pipe to cause liquid silicon to flow out of the... | 10/02/1984 |
| 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 |
| 4410997 | Furnaces for the melting of glass A furnace for the melting of glass in which horizontally spaced regions of the molten glass body are heated by passage of alternating electric current between diagonally opposed electrodes of two groups and supplied from a primary power supply circuit, an... | 10/18/1983 |
| 4399544 | High temperature electronic furnace apparatus and methods of operation A high temperature electronic furnace wherein a product-containing vessel has a product exit orifice, a plurality of electrodes are located in the vessel to define primary current paths adjacent the orifice, a control electrode is positioned in the vessel... | 08/16/1983 |
| 4365986 | Furnace delivery system A glass delivery system is disclosed having a central glass conducting pipe enclosed within a heat exchange structure. Heat shields reflect energy back to the pipe for reducing heat losses from the pipe and heaters are located about the pipe to add heat e... | 12/28/1982 |
| 4350516 | Outlet for a glass melting furnace An electric glass-melting furnace has a cylindrical orifice block formed of a single block of refractory metal and an orifice through which molten glass flows out of the furnace. The inner end of the block extends into the melting zone portion of the furn... | 09/21/1982 |
| 4268296 | Method and apparatus for manufacture of glass film The invention provides a method and apparatus for the manufacture of glass film having a thickness not in excess of 0.003 inches and accomplished by drawing the film through a narrow slot-like orifice. The walls of the orifice are defined by an electrical... | 05/19/1981 |
| 4268298 | Molten glass feeding bowl The molten glass feeding bowl has two parallel sides with a third side being generally perpendicular thereto. Electrodes for heating glass within the bowl extend through aligned holes in the side walls of the refractory bowl and metal housing. The bowl ca... | 05/19/1981 |
| 4213002 | 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... | 07/15/1980 |
| 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 |
