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| Number | Title | Issue Date |
| 7365038 | Glasses for flat panel displays Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the followi... | 04/29/2008 |
| 7363777 | Closed cassette and method for heat treating glass sheets A convection compatible closed cassette and method are described herein where the closed cassette is used to heat treat (compact) one or more glass sheets in a uniform manner and in a clean environment. In the preferred embodiment, the closed cassette includes multi... | 04/29/2008 |
| 7354878 | Sag control of isopipes used in making sheet glass by the fusion process Isopipes for use in making sheet glass by a fusion process are provided which exhibit reduced sag. The isopipes are composed of a zircon refractory which has a mean creep rate (MCR) at 1180° C. and 250 psi and a 95 percent confidence band (CB) for said mean creep r... | 04/08/2008 |
| 7318330 | Mobile device and a process for the production of glass The present invention relates to a float bath comprising a transport assembly and/or an adaptor for producing glass by a float-forming process. ... | 01/15/2008 |
| 7310973 | Method and apparatus for making variegated glass sheets and tiles An apparatus is disclosed comprising a first color glass feeder having a first valve device, and a second color glass feeder having a second valve device, each connected by communications links to a controller. The controller controls the first valve device and seco... | 12/25/2007 |
| 7260959 | Glass handling system and method for using same A glass handling system and method are described herein where an enhanced robot is used to engage and hold a glass sheet in a manner that minimizes the motion of the glass sheet as it is moved from one point to another point in a glass manufacturing facility. The en... | 08/28/2007 |
| 7259119 | Sag control of isopipes used in making sheet glass by the fusion process Isopipes for use in making sheet glass by a fusion process are provided which exhibit reduced sag. The isopipes are composed of a zircon refractory which has a mean creep rate (MCR) at 1180° C. and 250 psi and a 95 percent confidence band (CB) for said mean creep r... | 08/21/2007 |
| 7155935 | Sheet glass forming apparatus One embodiment of the present invention is an improved sheet glass forming apparatus. In another embodiment, a precise thermal control system redistributes the flow of molten glass at the weirs to counteract the degradation of the sheet forming apparatus which inevi... | 01/02/2007 |
| 7125320 | Apparatus and method for grinding and/or polishing an edge of a glass sheet An apparatus and method are described herein which help prevent particles and other contaminants that are generated when an edge of a glass sheet is processed from contaminating or damaging the glass sheet. The apparatus includes an encapsulation device and a proces... | 10/24/2006 |
| 7125319 | Apparatus and method for grinding and/or polishing an edge of a glass sheet An apparatus and method are described herein which help prevent particles and other contaminants that are generated when an edge of a glass sheet is processed from contaminating or damaging the glass sheet. The apparatus includes an encapsulation device and a proces... | 10/24/2006 |
| 7087541 | Glass composition for display panels A glass composition suitable for manufacturing plasma displays and large-area displays using the fusion draw process is provided. The glass composition includes 59–66 mol % SiO2, 14.5–18.0 mol % Al2O3, 8.5–12.0 mol % Na2 | 08/08/2006 |
| 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 |
| 6997017 | Overflow downdraw glass forming method and apparatus The forming apparatus of the present invention preferably includes an orifice on top of the trough. The uniquely shaped orifice substitutes for the weirs as the controlling entity for glass thickness. The orifice is designed such that as it deforms, it maintains a l... | 02/14/2006 |
| 6993936 | System and method for suppressing the formation of oxygen inclusions and surface blisters in glass sheets and the resulting glass sheets A system and method for suppressing the formation of gaseous inclusions in glass sheets and the resulting glass sheets are described herein. The system includes a melting, fining, delivery, mixing or forming vessel that has a refractory metal component (e.g., platin... | 02/07/2006 |
| 6992030 | Low-density glass for flat panel display substrates Disclosed is a glass material essentially free of BaO and alkali oxide particularly suitable for the glass substrate of LCDs. The glass material consists essentially, expressed in mole percent on an oxide basis, of 70–80%, preferably 72–77% of SiO2, 3... | 01/31/2006 |
| 6974786 | Sag control of isopipes used in making sheet glass by the fusion process Isopipes for use in making sheet glass by a fusion process are provided which exhibit reduced sag. The isopipes are composed of a zircon refractory which has a mean creep rate (MCR) at 1180° C. and 250 psi and a 95 percent confidence band (CB) for said mean creep r... | 12/13/2005 |
| 6743491 | Flint/amber laminated glass container and method of manufacture A laminated glass container has an inner layer of amber glass surrounded by an outer layer of flint glass. The container is manufactured by forming a cased glass stream, having an amber glass core and a flint glass casing layer, cutting the stream into individual go... | 06/01/2004 |
| 6634187 | Apparatus for delivering a cased glass stream having a raised and sealed orifice bushing Apparatus for delivering a cased glass stream having an inner core glass surrounded by an outer casing glass includes a first or upper orifice ring having at least one orifice for receiving core glass, and a second or lower orifice ring secured beneath th... | 10/21/2003 |
| 6622525 | Apparatus for delivering a cased glass stream Apparatus for forming a cased glass stream having an inner core glass surrounded by an outer casing glass that includes a spout for delivering core glass from a first source through a first orifice. A second orifice is vertically spaced beneath and aligne... | 09/23/2003 |
| 6457330 | Apparatus and method for delivering a cased glass stream Apparatus for forming a cased glass stream having an inner core glass surrounded by an outer casing glass includes a first orifice for receiving core glass from a first source, and an orifice ring forming a second orifice vertically spaced beneath and ali... | 10/01/2002 |
| 6318128 | Method of making an article having a gradient composition According to the invention, a) at least the first and second compositions of this material in the fluid phase are prepared, b) a sheet (61) of the first composition is poured continuously onto a flat support (4), c) a sheet (62) of t... | 11/20/2001 |
| 6076375 | Apparatus for delivering a glass stream A method and apparatus for delivering a glass stream comprising a first inner layer and a second outer layer, comprising a generally vertical orifice, and delivering glass from a second source such that the glass from said second source provides an outer ... | 06/20/2000 |
| 6062047 | Device for manufacturing a rod of a material having a cross-sectional composition gradient The material is in a fluid state at a predetermined temperature above the ambient temperature. According to the invention: a) at least two different compositions of this material in the fluid state are prepared; b) simultaneously and concentrically both t... | 05/16/2000 |
| 6029475 | Batching of molten glass in the production of graded index of refraction glass bodies Gradient refractive index elements are fabricated from the melt, using two or more molten glass compositions, to prevent bubble formation in the elements. The individual glass compositions are melted in separate containers, and then added as appropriate t... | 02/29/2000 |
| 5992179 | Process for manufacturing grin lenses A method of manufacturing an optical device having a profile of refractive indices along its optical axis. A desired volume of each of a plurality of types of optical material are dispensed into a mold of known plan area in the form of a frit or a melt an... | 11/30/1999 |
| 5944863 | Apparatus for controlling flow of casing glass in a cased glass stream Apparatus for forming a cased glass stream having an inner core glass surrounded by an outer casing glass includes a first orifice for receiving core glass from a first source. A second orifice is vertically spaced beneath and aligned with the first orifi... | 08/31/1999 |
| 5935286 | Method and apparatus for delivering a cased glass stream Apparatus for forming a cased glass stream having an inner core glass surrounded by an outer casing glass includes a first orifice for receiving core glass from a first source, and a second orifice vertically spaced beneath and aligned with the first orif... | 08/10/1999 |
| 5925161 | Method and apparatus for delivering a glass stream for forming charges of glass An apparatus for delivering a glass stream including 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 said second source provides an outer layer about ... | 07/20/1999 |
| 5914438 | Method and apparatus for delivering a coated glass stream for forming charges of glass A method and apparatus for delivering a coated glass stream having a first inner layer and a second outer layer wherein the method comprises providing a vertical orifice, delivering molten glass from a first source through the orifice, providing a gap abo... | 06/22/1999 |
| 5906666 | Method and apparatus for delivering a cased glass stream having improved resistance to high-temperature erosion Apparatus for forming a cased glass stream having an inner core glass surrounded by an outer casing glass includes a first orifice for receiving core glass from a first source, and a second orifice vertically spaced beneath and aligned with the first orif... | 05/25/1999 |
| 5868812 | Method and apparatus for delivering a cased glass stream Apparatus for forming a cased glass stream having an inner core glass surrounded by an outer casing glass includes a first orifice for receiving core glass from a first source. A second orifice is vertically spaced beneath and aligned with the first orifi... | 02/09/1999 |
| 5855640 | Apparatus for delivering a coated glass stream for forming charges of glass A method for delivering a coated glass stream having a first inner layer and a second outer layer wherein the method includes providing a vertical orifice, delivering molten glass from a first source through the orifice, providing a gap about the orifice ... | 01/05/1999 |
| 5853447 | Method and apparatus for delivering a cased glass stream Apparatus for forming a cased glass stream that includes at least one pair of aligned orifices coupled to sources of core and casing glass such that glass flows by gravity from the first and second sources through the aligned orifices to form a cased glas... | 12/29/1998 |
| 5810900 | Method and apparatus for delivering a cased glass stream A glass delivery system including a first forehearth having an orifice, a second forehearth having an orifice, a bottom pan assembly adapted to be positioned underneath the orifice of the first forehearth, and a glass delivery tube having an upper end ada... | 09/22/1998 |
| 5803942 | Method and apparatus for delivering a cased glass stream Apparatus for forming a cased glass stream that includes at least one pair of aligned orifices coupled to sources of core and casing glass such that glass flows by gravity from the glass sources through the aligned orifices to form a cased glass stream. T... | 09/08/1998 |
| 5779756 | Method of centrifuging a halide glass and forming an optical fiber preform A method of fabricating a fluoride glass optical fiber preform which has a fluoride glass core surrounded by a fluoride glass optical cladding includes the following steps: introducing the cladding glass in the molten state into a bottom part of a mold ha... | 07/14/1998 |
| 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 |
| 5588978 | Process and apparatus for coloring glass A method and apparatus for the production of colored glass includes the steps of diverting a stream of clear molten glass from at least one glass melting furnace through one or more transport channels to a color treatment chamber. Recycled cullet and colo... | 12/31/1996 |
| 5529596 | Method for making dual-glass fibers by causing one glass to flow around another glass as they are spun from a rotating spinner A method for making dual-glass fibers includes supplying first and second molten glass to a rotating spinner having an orificed peripheral wall, where the first glass has a higher viscosity than that of the second glass, centrifuging the first and second ... | 06/25/1996 |
| 4875917 | Method for making a layered glass article Layered glass products such as multilayer glass rods or fibers are formed in a preferably continuous process wherein at least two component glasses are supplied to an annular mixing zone wherein relative movement of the annular surfaces produces spiral la... | 10/24/1989 |
