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| Number | Title | Issue Date |
| 7854144 | Method of reducing gaseous inclusions in a glass making process Feed materials are melted in a first vessel to form a glass melt at a first temperature T1, the glass melt containing at least one fining agent. The molten glass is next cooled to a second temperature T2 less than T1 in a second vess... | 12/21/2010 |
| 7024888 | Method for changing glass compositions in melting installations, and corresponding melting installation The invention relates to a method for changing glass compositions in continuously operated melting installations which has a significantly shortened melt changeover time and therefore lower costs and in which the glass quality is not adversely affected. ... | 04/11/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 5776221 | Method for delivering a glass stream for forming charges of glass A method for delivering a glass stream having a first inner layer and a second outer layer, including a generally vertical orifice, and delivering glass from a second source such that the glass from the second source provides an outer layer about the glas... | 07/07/1998 |
| 5718741 | 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... | 02/17/1998 |
| 5643489 | Manufacturing method of far infrared ray emitting material and far infrared ray emitting product using the same The present invention relates to a manufacturing method of a far infrared ray emitting material having a wavelength of predetermined frequency band and a far infrared ray emitting product using the same, the manufacturing method including steps of: having... | 07/01/1997 |
| 5634958 | Method and apparatus for conditioning and homogenizing a glass stream At least one cooling zone and a subsequent homogenization zone are installed between the inlet and the outlet of a forehearth for conditioning and homogenizing a stream of colored glass. The glass temperature in the forehearth is reduced from the inlet te... | 06/03/1997 |
| 5630860 | Method and apparatus for conditioning and homogenizing a glass stream A continuously flowing glass stream is conditioned and homogenized along a conditioning stretch, which extends from an entry side to at least one extraction point, and at the beginning of which there is a cooling zone, to which at least one homogenizing z... | 05/20/1997 |
| 5573569 | Method for conditioning and homogenizing a glass stream A continuously flowing glass stream is conditioned and homogenized along a conditioning stretch, which extends from an entry side to at least one extraction point, and at the beginning of which there is a cooling zone, to which a homogenizing zone for the... | 11/12/1996 |
| 5383949 | Glass forehearth A glass forehearth is disclosed which is made up of upstream and downstream zones each having a roof structure which divides the channel into opposed side channels separated by a central channel. The glass in the central channel is heated for at least a p... | 01/24/1995 |
| 5327452 | Forehearth A forehearth for a glass furnace comprises a trough and roof over the trough, the roof having two longitudinal ridges extending downwardly towards the surface of the glass to define three longitudinal chambers. The central chamber forms a conduit for the ... | 07/05/1994 |
| 5120340 | Bioreactive material for a prosthesis or composite implants A method is disclosed for preparing an improved bioreactive material of the glass or partially crystallized glass type for bone prostheses or dental implants, which can be welded to bone tissue by chemical bonding. The material consisting essentially of, ... | 06/09/1992 |
| 5064461 | Blue/gray transparent glass-ceramic articles This invention is directed to the production of transparent glass-ceramic articles demonstrating linear coefficients of thermal expansion of less than 10×10-7 /°C. and exhibiting a blue or gray coloration. The articles are prepared by heat tr... | 11/12/1991 |
| 5055123 | Method and apparatus for equalization of temperature in a forehearth in glass manufacture The invention provides a method and apparatus for equalizing the temperature of molten glass (2) over the cross-section of a stream thereof advancing through a refractory forehearth from a glass furnace to a glass working machine. To this end, cooling air... | 10/08/1991 |
| 5035735 | Process for vitrifying environmentally hazardous waste material in a glass melting furnace Process for vitrifying environmentally hazardous waste material in a glass melting furnace includes forming a batch including the waste material and no more than 30 weight percent additives including phonolite and SiO2 containing substances. A ... | 07/30/1991 |
| 5015281 | Method for preparing fluoride glasses A new, simplified method of fabricating optically transparent fluoride glasses containing ZrF4 and/or HfF4 has been developed which relies on a high vacuum pre-treatment for surface dehydration, melting in a rigorously inert argon at... | 05/14/1991 |
| 5006142 | Oxynitride glass production procedure The invention is a process for the preparation of high quality oxynitride glasses without resorting to high pressures. Nitrogen-containing compounds such as Si3 N4 are first encapsulated in a low melting temperature glass. Particles ... | 04/09/1991 |
| 4994099 | Method for fining molten glass A furnace for fining molten glass is provided in which glass flows in a substantially vertical direction prior to exiting the furnace. As it flows vertically, the glass is allowed to cool. This cooling, in turn, allows the glass to be removed from the fur... | 02/19/1991 |
| 4944785 | Process using melt accelerator for the conversion of solid waste substances into glass Waste substance such as incineration ash is mixed with cullet and alkaline earth salt to form a mixed batch which is added to a glass melt heated solely by electrodes, producing an exhaust gas which is introduced into the batch thereby cooling the gas to ... | 07/31/1990 |
| 4915721 | Process for preparation of fluorophosphate optical glass Optical fluorophosphate glasses based on Ba(PO3)2, Al(PO3)3, alkaline earth metal fluorides and AlF3 are described which have a refractive index ne between 1.47 and 1.50, an Abbe-value .nu.... | 04/10/1990 |
| 4849001 | Method for making sintered glass A porous water soluble glass body is formed by sintering powdered glass, compacted to a predetermined density, at a temperature near the glass softening temperature (Ts). The porous body may be impregnated with an organic material for subsequen... | 07/18/1989 |
| 4818265 | Barrier apparatus and method of use for melting and refining glass or the like In a method of making glass or the like, wherein the batch materials are liquefied in a distinct zone from the refiner, the liquefied material is heated in an intermediate stage before being fed to the refiner, and a composite barrier of a cooled frame wi... | 04/04/1989 |
| 4793844 | Method for preparing glassy borate disks for instrumental analysis and in particular for x-ray fluorescence analysis A method for preparing glassy borate disks is disclosed where a determined amount of investigated material is mixed with borate flux, the mixture is homogenized and tableted; then the obtained tablet is melted in a graphite ring placed on a graphite suppo... | 12/27/1988 |
| 4726831 | Molten glass delivery and conditioning system A glass delivery system is disclosed which includes a molybdenum delivery pipe surrounded by molten glass and inductively heated by a water cooled induction heating coil surrounding the molybdenum pipe and spaced apart therefrom by means of refractory mat... | 02/23/1988 |
| 4713106 | Method and apparatus for conveying molten material A vertical standpipe which has an internal fitting. The standpipe conveys a molten glass stream from a molten bath in a furnace forehearth to a spinner below the forehearth. The internal fitting has an orifice positioned so as to maintain a spaced-apart r... | 12/15/1987 |
| 4693740 | Process and device for melting, fining and homogenizing glass Device for continuous manufacture of fined glass in which the flow of molten material is transferred from a melting compartment (1) to a fining compartment (2) by a submerged throat (8), the fining compartment (2) comprising a chute (14) carrying the mate... | 09/15/1987 |
| 4676819 | Ablation melting with composite lining In a method and apparatus for liquefying material such as glass batch, primary thermal protection for the vessel is provided by a lining of the batch material, with secondary protection being provided by a partial refractory lining on the interior of the ... | 06/30/1987 |
| 4655812 | Electric heating of glass forehearth A forehearth for a glass furnace includes a roof formed of a plurality of roof blocks designed to provide below the roof blocks a central longitudinal channel and side channels on each side of the central channel. An electric heating element is positioned... | 04/07/1987 |
| 4652293 | Method of cooling molten glass A method of cooling molten glass, which comprises slowly cooling the molten glass while the average temperature of the molten glass is within a certain range extending below and above the temperature at which the speed of absorbing bubbles is highest, and... | 03/24/1987 |
| 4592770 | Glass melter The glass melter has an outlet portion formed as a heating device for controlling the outlet flow rate of molten glass from the melter. Raw batch material that is used to form the molten glass is heated to a molten state at a first temperature range. The ... | 06/03/1986 |
| 4414013 | Method of making black glass by utilizing incinerated waste glass A process and a product made by the process for producing black glass from incinerated municipal waste including separating metal, stone and ash from the waste; melting the glass material comprising ferrous oxide and ferric oxide to convert at least a por... | 11/08/1983 |
| 4372771 | Methods and apparatus for extruding articles A fused silica glass tube (26) is extruded from a melt (21) in a chamber (11) pressurized with an inert gas. A shield is placed in close, spaced, relation to the melt (21) surface during the gas pressure extrusion process to substantially eliminate losses... | 02/08/1983 |
| 4361430 | Method of and apparatus for selectively heating molten glass stream marginal edges Apparatus for selectively heating marginal edge portions of a stream of molten glass includes at least two independent heating elements presenting a substantially planar heating face toward the marginal edge of a stream of molten glass flowing in close pr... | 11/30/1982 |
| 4352687 | Furnace delivery system A glass delivery system is disclosed having a glass conducting pipe enclosed within a refractory structure. The refractory structure is spaced about the pipe and defines a closed space for receiving therein a quantity of the glass. Heat input devices are ... | 10/05/1982 |
| 4319903 | Method and apparatus for preheating glass batch A process and apparatus for preheating glass batch ingredients is disclosed. The invention uses a heat exchange method that preferably employs furnace exhaust gases. The heated batch then is fed to a glass melting furnace.... | 03/16/1982 |
| 4305743 | Method and system for quenching, drying, and elevating glass compositions A method and system for quenching, drying, and elevating glass compositions comprising an incline reciprocating conveyor arranged to receive a stream of molten glass. The reciprocating conveyor has deep side and lower end walls in order to hold a pool of ... | 12/15/1981 |
| 4285718 | Method of operating tubular heat exchanger for preheating pulverous glass batch The present invention relates to a method for preheating of pulverous materials in a tube heat exchanger prior to their introduction into a melting furnace, with particular application to the delivery by gravity of the vitrifiable starting materials throu... | 08/25/1981 |
