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| Number | Title | Issue Date |
| 8156766 | Molten optical glass fining apparatus The present invention significantly modifies the currently known fining apparatus (finer). The basic shape is changed from a cylindrical shape to an elliptical shape, a somewhat rectangular shape, variations on a gabled roof shape, or variations on a gothic arch sha... | 04/17/2012 |
| 7650764 | Vacuum degassing apparatus for molten glass A vacuum degassing apparatus for molten glass includes a vacuum housing which is evacuated to be depressurized therein; a vacuum degassing vessel which is provided in the vacuum housing to vacuum-degas molten glass as the molten glass flows therein; an uprising pipe... | 01/26/2010 |
| 7509819 | Oxygen-fired front end for glass forming operation A front end for a glass forming operation comprises an open channel and at least one burner. The channel has at least one surface. The surface has at least one hole therein. The burner is oriented in the hole at an acute angle relative to the surface. In another emb... | 03/31/2009 |
| 7490487 | Refining chamber made of platinum group metal materials In some embodiments, the invention provides a refining chamber for glass production, made of platinum group metal materials, with improved refining effectiveness. The refining chamber according has the shape of a tube with a cross section (1), with the cross ... | 02/17/2009 |
| 7392668 | Low heat capacity gas oxy fired burner A front end for a glass forming operation including an open channel and at least one burner. The channel surface has at least one burner port and a burner oriented in the burner port at an acute angle relative to the channel surface. The surface may be a top, side o... | 07/01/2008 |
| 7377132 | Conduit for molten glass, molten glass degassing method and molten glass degassing apparatus A conduit for molten glass, a molten glass degassing method and a sub-atmospheric apparatus are provided, which are able to produce homogenous and good quality glass at low cost. A conduit for molten glass, which is capable of flowing molten glass in a horizontal di... | 05/27/2008 |
| 7231788 | Method and device for refining a glass melt using negative pressure The apparatus for reduced-pressure refining of a glass melt includes a refining bank formed so that a reduced pressure is generated by a glass flow in it. The refining bank has a component, which is made from a refractory metal or refractory alloy acting as glass-co... | 06/19/2007 |
| 7150165 | Molten glass fining apparatus The basic shape of the molten glass fining apparatus of the present invention is preferably either an elliptical or a somewhat rectangular shape such that the flow is more uniform and the bubbles have less distance to rise to the surface. A novel baffle design is al... | 12/19/2006 |
| 7143610 | Method and system for feeding and burning a pulverized fuel in a glass melting furnace, and burner for use in the same A method and system feed and burn pulverized fuel, such as petroleum coke, in a glass melting furnace having burners associated with sealed regenerative chambers which act as heat exchangers. The system supplies the pulverized fuel for melting glass raw materials. T... | 12/05/2006 |
| 7134300 | Method for controlling foam production in reduced pressure fining A method for controlling the foam produced when a molten material encounters reduced pressure in a vacuum chamber includes passing the molten material through an aging zone in the vacuum chamber in which the molten material is allowed to drain from between the bubbl... | 11/14/2006 |
| 7032412 | Methods of manufacturing glass sheets with reduced blisters Methods of manufacturing glass sheets with manufacturing systems that including platinum-containing components are provided. The method includes providing a barrier coating to reduce the hydrogen permeability of the platinum-containing components which reduces the p... | 04/25/2006 |
| 7017372 | Molten glass supply device, glass formed product, and method of producing the glass formed product A molten glass supply device is provided, which can solve unavoidable problems for high viscosity characteristics in connection with the conventional molten glass supply device for high viscosity glass. Such problems include improperly high heating cost caused by ex... | 03/28/2006 |
| 7007515 | Noble metal duct for conducting a glass melt and method for conducting a glass melt The double-walled noble metal duct (1) for conducting a glass melt has an outer noble metal pipe (1b) and an inner noble metal pipe (1a) extending within the outer pipe, so that an inner space (21) is formed within the inner... | 03/07/2006 |
| 6948338 | Vacuum degassing apparatus for molten glass A vacuum degassing apparatus for molten glass includes a vacuum housing; a vacuum degassing vessel provided in the vacuum housing; an uprising pipe which connects to the vacuum degassing vessel; and a downfalling pipe which connects to the vacuum degassing vessel. T... | 09/27/2005 |
| 6889527 | Skull pot for melting or refining inorganic substances, especially glasses and glass ceramics The invention relates to a skull pot (1) for melting, crystallizing or refining inorganic substances. Said pot comprises a pot wall (1.1), a pot bottom (1.2), an induction coil (2) which surrounds the pot wall (1.1) and by means of... | 05/10/2005 |
| 6848275 | Method for melting or refining glasses or glass ceramics This invention relates to a device for melting or refining glass or glass ceramics. According to the invention, such a device is provided with the following characteristics: a channel which is arranged in an essentially horizontal manner and which is provided with a... | 02/01/2005 |
| 6817212 | Skull pot for melting or refining glass or glass ceramics The invention relates to a skull pot for melting or refining glass or glass ceramics, comprising a pot wall (1), a pot base, and an induction coil (3) which surrounds said pot wall and through which high-frequency energy can be coupled into the content... | 11/16/2004 |
| 6799439 | Method for equalizing temperature differences in molten glass, and equipment therefor A method for equalizing temperature differences in molten glass in at least one temperature equalization zone that is in the form of a channel for transporting a glass melt. The equalization zone is located upstream from a tapping point, at which the glass is tapped... | 10/05/2004 |
| 6751989 | Device and method for melting or refining glass or glass ceramics The invention relates to a device for melting or refining glass or glass ceramics. According to the invention, a device of this type is provided with the following characteristics: a plurality of tubes which are U-shaped and arrange side by side so that they form a ... | 06/22/2004 |
| 6739152 | Process for melting and refining vitrifiable materials The subject of the invention is a process for melting and refining vitrifiable materials, such that all or part of the thermal energy necessary for melting the said vitrifiable materials is supplied by the combustion of fossil fuel(s) with at least one oxidizer gas,... | 05/25/2004 |
| 6708527 | Glass feeder operated with oxy-gas combustion A glass feeder comprises an enclosed chamber through which molten glass can pass, and passing through each side wall into the chamber at least one burner comprising first and second burner head means for combusting oxidant and fuel within said chamber so as to gener... | 03/23/2004 |
| 6588234 | Device and method of plaining glasses or glass-ceramics A device and method for the plaining of glasses or glass-ceramics. The device is provided with a melting vat, at least two plaining containers serially connected after the outlet of the melting vat, and at least one of the plaining containers is built in ... | 07/08/2003 |
| 6560996 | Vacuum degassing apparatus for molten glass Molten glass has a liquid level located at a higher level than lower ends of an uprising pipe and a downfalling. In addition, a contacting portion of the uprising pipe or the downfalling pipe and a brick receiver on an upstream or downstream pit for suppo... | 05/13/2003 |
| 6532771 | Method for controlling glass furnace atmosphere Glass is produced in a glassmelting furnace by combusting fuel and oxidant having an oxygen content greater than 80 vol. % oxygen in a melting zone to form molten glass, wherein the surface of the molten glass is exposed to the gaseous atmosphere in the m... | 03/18/2003 |
| 6418755 | Glass melting apparatus and method including exhausting the furnace atmosphere by removal of a heating element A system for melting and delivering glass to a work area such as spinners for making fiberglass includes a melter with heaters so arranged that the "hot spot" in the molten glass is located away from the walls and corrosion sensitive parts so that the var... | 07/16/2002 |
| 6401492 | Process for physical refinement of a liquid especially a glass melt, and apparatus for performing said process In many engineering production processes, for example glass or glass-ceramic manufacturing processes, liquids, such as glass melts, participate in the processes in which gases are dissolved, which in part form bubbles in the liquid. So that the quality of... | 06/11/2002 |
| 6357264 | Apparatus for melting molten material This apparatus is a furnace for heating molten material which employs oxygen-fuel burner assemblies. Preferably, the assemblies are submerged in the molten material. They are water cooled top down units with burner nozzles being off-set from the supply co... | 03/19/2002 |
| 6321572 | Vacuum degassing apparatus for molten glass A vacuum degassing apparatus includes a lifter to absorb deformation in a vertical direction due to thermal expansion of the vacuum degassing, a slider to absorb thermal expansion of the vacuum degassing vessel in a longitudinal direction thereof, or a th... | 11/27/2001 |
| 6314760 | Glass melting apparatus and method A system for melting and delivering glass to a work area such as spinners for making fiberglass includes a melter with heaters so arranged that the "hot spot" in the molten glass is located away from the walls and corrosion sensitive parts so that the var... | 11/13/2001 |
| 6308534 | Vacuum degassing apparatus for molten glass Molten glass has a liquid level located at a higher level than lower ends of an uprising pipe and a downfalling. In addition, a contacting portion of the uprising pipe or the downfalling pipe and a brick receiver on an upstream or downstream pit for suppo... | 10/30/2001 |
| 6253578 | Glass melting process and apparatus with reduced emissions and refractory corrosion A glassmelting apparatus which reduces alkali corrosion comprising: a glassmelting furnace having a plurality of walls, a crown, a charge end, a batch melting area and a fining area; at least two low momentum oxy-fuel burners located in at least one of th... | 07/03/2001 |
| 6233974 | Oxygen-gaseous forehearth burner for air-fuel and oxy-fuel forehearth burner block geometries An oxy-gaseous fuel burner for a forehearth system having an oxygen conduit, a fuel conduit disposed concentrically within the oxygen conduit and forming an annulus between the fuel conduit and the oxygen conduit, a precombustor conduit disposed at the ox... | 05/22/2001 |
| 6178777 | Side-discharge melter for use in the manufacture of fiberglass, and corresponding method An electric open-top melter for use in the manufacture of mineral fibers, such as fiberglass, is provided with a side-discharge outlet. The side-discharge outlet allows the melter, conditioner/refiner, and forehearth to all be located on substantially the... | 01/30/2001 |
| 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 |
| 6134921 | Directly cooled, side fired forehearth A forehearth (20) for cooling glass from a melting furnace as it flows to a feeder bowl (28) from which it is discharged to a forming machine. The forehearth is in the form of an elongate, horizontally extending insulated trough (26) with a roof formed by... | 10/24/2000 |
| 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 |
| 6079229 | Process for improving the thermal profile of glass ovens In a process for manufacturing glass in a furnace a glass charge in solid form is introduced into a furnace-charging zone at an upstream part of a furnace. The glass charge is moved from the furnace-charging zone to a zone for removing the combustion smok... | 06/27/2000 |
| 6041622 | Method and apparatus for heating the change of a glass furnace A combustion assembly adapted for a furnace is provided. The assembly includes an axis comprising at least one pair of burners having axes. An oxidant lance is arranged between the burners of the pair and has a lance axis. A source of oxidant is connected... | 03/28/2000 |
| 5961686 | Side-discharge melter for use in the manufacture of fiberglass An electric open-top melter for use in the manufacture of mineral fibers, such as fiberglass, is provided with a side-discharge outlet. The side-discharge outlet allows the melter, conditioner/refiner, and forehearth to all be located on substantially the... | 10/05/1999 |
| 5944864 | Directly cooled, side fired forehearth A forehearth (20) for cooling glass from a melting furnace as it flows to a feeder bowl (28) from which it is discharged to a forming machine. The forehearth is in the form of an elongate, horizontally extending insulated trough (26) with a roof formed by... | 08/31/1999 |
