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| Number | Title | Issue Date |
| 7946128 | Glass compositions compatible with downdraw processing and methods of making and using thereof Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). The glass compositions possess numerous... | 05/24/2011 |
| 7428827 | Device and method for melting vitrifiable materials The subject of the invention is a device for melting batch materials that combines at least two separate melting modules, including a module A(1) which is predominantly fitted with heating means in the form of crown burners and/or submerged electrodes, and a ... | 09/30/2008 |
| 7305852 | Method for manufacturing quartz glass ingot The invention provides a method for manufacturing a large scale quartz glass slab ingot in a flame hydrolysis reaction in a furnace, including the steps of rotating the furnace, depositing a fused silica on a furnace bed, and extending the deposit outwardly by heati... | 12/11/2007 |
| 7299657 | Method of making high strain point glass A method of forming a glass sheet includes obtaining a preform generated from a glass composition and conveying the preform through a channel having a temperature that decreases along a length of the channel to form a glass sheet having a predetermined width and thi... | 11/27/2007 |
| 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 |
| 6978640 | Device and method for the simultaneous production of glass products with varying masses The invention relates to a manufacturing apparatus for simultaneously making different hollow glass products having different gob sizes comprising at least one feed apparatus (12), that has at least one glass reservoir (14), at least one plunger (18... | 12/27/2005 |
| 6802189 | Device and process for the remelting of glass A process for the remelting of glass bars, including the steps of introducing a glass bar into an upper end of a receiving shell; providing a molten bath having a surface underneath the receiving-shell; positioning the receiving shell such that a lower edge of the r... | 10/12/2004 |
| 6763682 | Process and apparatus for manufacturing a glass ingot from synthetic silica A method and apparatus for the manufacture of synthetic vitreous silica ingots involves the production of a melt of synthetic vitreous silica in a crucible (35) within a refractory furnace (31), and the continuous withdrawal of an ingot (43) thr... | 07/20/2004 |
| 6742364 | Method of manufacturing micro glass optical element A method of manufacturing a micro molten glass droplet, has the steps of, colliding a molten glass droplet with a micro through hole formed in a plate-shaped member; and pushing out at least part of the glass droplet to a reverse surface of the micro through hole as... | 06/01/2004 |
| 6652935 | 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 in... | 11/25/2003 |
| 6595029 | Process for devices for the production of internally-hardened glass tubes as well as their use The invention relates to a process for the production of internally-hardened glass tubes, in which in a tube-drawing process for the production of glass tubes that is known in the art, a coated drawing tool, for example in the process according to Danner ... | 07/22/2003 |
| 6499316 | Method of producing a glass gob, method of producing a glass molded product, and apparatus for producing a glass gob In a method of producing a glass gob by continuously dropping a molten glass 9 from a nozzle 2 in a dropping direction, a gas flow 20 is caused to continuously flow in the dropping direction along an outer peripheral surface of the nozzle 2 at a predeterm... | 12/31/2002 |
| 6260387 | Method for fabricating glass preforms for molding optical surfaces in glass elements A method for making preforms for use in a glass lens molding process and molding lenses is disclosed. A glass rod is formed preferably by dipping a bob into a homogeneous melt of a predetermined optical glass, maintaining the temperature of the homogeneou... | 07/17/2001 |
| 6199405 | Glass feeder A glass feeder which discharges parallel runners of molten glass which can be sheared into discrete gobs for processing in a glass container forming machine. The spout bowl has a neck portion at the bottom which includes a discharge passage. This passage ... | 03/13/2001 |
| 6176103 | 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 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... | 01/23/2001 |
| 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 |
| 5928397 | Method to produce fused quartz particulates A method to produce fused quartz particulates from quartz sand is disclosed employing continuous withdrawal of the molten material from a furnace apparatus. The molten material is rapidly cooled as withdrawn causing thermal fracture which is followed by m... | 07/27/1999 |
| 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 |
| 5917106 | Method and apparatus for introducing glass gobs into a glass container forming machine A gob of molten glass from a gob delivery system is introduced into a blank mold of a glass container forming machine of the individual section type by way loading funnel immediately upstream of an opening into the blank mold. The loading funnel has an up... | 06/29/1999 |
| 5904746 | Method for producing vitreous optical elements by injection molding with pressure application Method and apparatus for producing vitreous optical elements by injection molding, which essentially includes the stages of: melting down a glass material into a molten state in a viscosity at or lower than a working point of the glass material; injecting... | 05/18/1999 |
| 5900033 | Apparatus and method for improved optical glass GOB preform production A gob formation device and method for improved production of molten glass preforms for use in the precision glass molding of optical glass elements. The device is a dispensing tip which is attached to a stem extending from a working crucible containing a ... | 05/04/1999 |
| 5895512 | Process for the manufacture of an object displaying a message A process for the manufacture of an object displaying a message includes the following steps: preparation of a support for the message having dimensions less than the dimensions of the object; manual or automatic application of the message to the support;... | 04/20/1999 |
| 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 |
| 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 |
| 5820652 | Sealing system for the engagement of a container beneath a melting furnace A sealing system for the engagement of a container (24) beneath a melting pot containing a molten material, comprising a shell (30) surrounding a nozzle (40), the nozzle being located in the axis of the neck of the container and permitting the pouring of ... | 10/13/1998 |
| 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 |
| 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 |
| 5762675 | Method relating to the preparation of amorphous samples and means therefor A method of producing amorphous sample bodies that can be used for optical spectral analysis and X-ray spectral analysis, by batch-wise smelting in a crucible a mixture of analysis sample and a flux. The method is characterized by allowing a controlled fl... | 06/09/1998 |
| 5735925 | 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 spout for receiving core glass from a first source and delivering such glass through a first orifice. A second orifice is vertically space... | 04/07/1998 |
| 5735926 | Apparatus for the driving of plungers in a feeder of a glass forming machine The apparatus comprises at least one plunger (2) and a plunger holder (3) which can be raised and lowered. An arm (18) of a tilt lever (17) is coupled to the plunger holder (3). A link member (22) of a drive system (23) cooperates with the other arm (20) ... | 04/07/1998 |
| 5637129 | Glass melting furnace plunger needle set-up fixture A set-up fixture (50) for positioning the needle holders (18, 20, 22) of a molten glass feeder bowl with respect to one another, the fixture having a frame member (52) and a plurality of prongs (54, 56, 58) depending from the fixture, one prong for each o... | 06/10/1997 |
| 5626641 | Method of manufacturing a glass blank used for optical glass elements In manufacturing a glass material used for a re-heat press method of manufacturing high-precision optical glass components including a lens, prism or the like, a glass material can be manufactured which has no defect inside of or on the surface of the gla... | 05/06/1997 |
| 5622541 | Glass feeders A basin for a forehearth of a glass-making furnace having an internal volume divided into upper and lower portions by an annular shoulder is described wherein the horizontal cross-sectional area of the upper portion is significantly greater than that of t... | 04/22/1997 |
| 5364432 | Method for producing a composite glass body with drawing of concentric melts A method for producing an elongated composite glass body by melting at least two starting materials of different material compositions, feeding the starting materials to a drawing die disposed at the bottom of an externally heated melting crucible, and co... | 11/15/1994 |
| 5213599 | Method of manufacturing tube glass In the manufacture of tube glass, in which following the drawing of a tube from molten glass the inside surface of the tube is treated with a chemically reactive gas or gas mixture, a gas or gas mixture which is not reactive at the drawing temperature of ... | 05/25/1993 |
| 4780122 | Vacuum refining of glass or the like with enhanced foaming Foaming of molten glass or the like as it enters a vacuum refining vessel is enhanced by altering the incoming stream so as to increase its surface area and/or retarding the passage of the stream through the vacuum headspace so as to increase its exposure... | 10/25/1988 |
| 4740401 | Forming laminated glass containers from a composite encapsulated gob of molten glass A glass bottle forming system is described in which a main glass melter is connected to a forehearth with a fairly conventional feeder provided at the delivery end of the forehearth. The feeder opening in the bottom of the forehearth is closed by a first ... | 04/26/1988 |
| 4717607 | Method of making a fluorescent lamp A method of making fluorescent lamps having increased brightness and improved maintenance by changing the surface chemistry of the inside surface of the glass tubing while the tubing is being manufactured. While the glass tubing is being drawn from a melt... | 01/05/1988 |
| 4581054 | Glass feeder orifice ring and holder An orifice ring and its holder are disclosed in detail, particularly as to the manner in which the ring is positioned within the holder or pan. The pan is formed with locating slots within which locating keys on the holder are to be positioned. Furthermor... | 04/08/1986 |
| 4385916 | Method of producing an optical fiber having a core which has a noncircular cross-section, and double crucible for use in this method An optical fiber having a circular outer cross-section and having a core which has a noncircular cross-section is produced by using a double crucible. The outer crucible is provided with a ring-shaped channel of which at least one of the boundary walls ha... | 05/31/1983 |
