Class 65/32.5 - With forming glass from molten state, with treatment of molten glass, or with drawing of glass in softened state

Subclass of Class 65 - Glass manufacturing
Definition: Processes comprising shaping or treating glass which has
No. of patents: 146
Last issue date: 05/26/2009

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Number	Title	Issue Date
7536875	Method for suppressing metal contamination in high temperature treatment of materials Disclosed is a method for treating glass and crystalline inorganic materials whereby metal contamination during such process is inhibited. Such process includes treating the material in the presence of a purifying atmosphere comprising a cleansing gas. The process i...	05/26/2009
7363776	Method for forming fused quartz using deuterium A silica deposition tube is fused in a deuterium (D2) gas atmosphere and optionally baked in a deuterium (D2) gas atmosphere to substantially reduce the hydrogen content in the tube for decreased fiber attenuation. Alternatively, raw silica mat...	04/29/2008
7353666	Method for press molding a glass optical element A molding apparatus for molding a press-molded product by heating and softening a material and press-molding the material into a predetermined shape by the use of a mold, includes a pair of dies which form the mold, each of which comprises a molding surface facing w...	04/08/2008
7294594	Glass composition A glass composition of the present invention relates to a multicomponent oxide glass composition manufactured by melting glass raw materials, which contains: 10 ppm or more of at least one type of a polyvalent element; minimum valence cations of the polyvalent eleme...	11/13/2007
7275397	Method of molding a silica article Disclosed are high temperature free-flow mold for the production of near net-shape silica articles and method for the production of near net-shape silica articles. The mold is preferably made of graphite, preferably coated with SiC on the surfaces of the mold cavity...	10/02/2007
7255550	Press-molding mold A press-molding mold includes a first mold (10), a second mold (20), a complementary element (30) arranged between the first mold (10) and the second mold (20), a washer (40) arranged between the second mold (10) and ...	08/14/2007
7240518	Process for producing spherical glass The apparatus for producing glass beads of the present invention comprises a melting pot 2 for heating and melting glass, a nozzle 2A for dripping molten glass 4 in the melting pot 2, which is disposed at the bottom of the melting pot ...	07/10/2007
7191619	Process for producing glass and glass-melting apparatus thereof A process for producing a high-quality glass from highly reactive raw materials and a glass-melting apparatus for use therewith, comprising the step of charging a material for the glass to a molten glass in a heated vessel, (1) wherein an oxidizing gas is bubbled in...	03/20/2007
7185517	Double crucible for a glass drawing method and method of making glass fiber or a preform with the double crucible The double crucible for a glass drawing method has a heatable outer crucible (1) and an inner crucible (2) surrounded by the outer crucible (1), which is heatable separately from the outer crucible (1). Both crucibles (1,2) have an...	03/06/2007
7171827	System and method for automated casting of infrared glass optical components In accordance with the present invention, a system and method for the automated casting of infrared glass optical components is provided. The system includes a mold for casting infrared glass into lenses, a mold chamber operable to heat the mold to a temperature abo...	02/06/2007
7159419	System and method for vapor pressure controlled growth of infrared chalcogenide glasses A system and method for preparing chalcogenide glass are provided that allow for larger quantities of glass to be produced with lower production costs and less risks of environmental hazards. The system includes a reaction container operable to hold chalcogenide gla...	01/09/2007
7159420	System and method for forming infrared glass optical components A system and method for forming infrared glass optical components are provided. The system includes first and second mold halves having first and second respective faces. The first and second mold halves are configured to be removably coupled such that the first fac...	01/09/2007
7155934	Method for the production of borosilicate glass with a surface suitable for modification glass obtained according to said method and the use thereof The method of making borosilicate glass with a surface having reactive SiOH groups on it includes preparing a borosilicate glass melt and dissolving at least 30 mMol per liter of water in the borosilicate glass melt. The borosilicate glass contains from 70 to 87 per...	01/02/2007
7143609	Low-temperature fabrication of glass optical components A method is provided for molding from glass certain complex optical components, such as lenses, microlens, arrays of microlenses, and gratings or surface-relief diffusers having fine or hyperfine microstructures suitable for optical or electro-optical applications. ...	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
7104090	Method of making polarizing glasses Polarizing glass articles and methods of manufacturing polarizing glass articles are disclosed. The method involves forming a polarizing layer on the surface of the glass article by ion-exchanging silver or copper into the surface. ...	09/12/2006
7065985	Molding die for optical element with lens-barrel A molding die for an optical element with a lens-barrel in which the lens-barrel is set in the molding die includes a tubular guide die, a upper die and a lower die sliding in the guide die Also an optical raw material is placed in the lens-barrel and the optical el...	06/27/2006
7013676	Press molding apparatus In a press molding apparatus for press molding a plurality of glass materials into a plurality of glass optical elements by the use of a pressing mold including upper and lower molds each of which has a plurality of molding surfaces, at least one of the upper and th...	03/21/2006
7010940	Process for producing glass and glass-melting apparatus thereof A process for producing a high-quality glass from highly reactive raw materials and a glass-melting apparatus for use therewith, comprising the step of charging a material for the glass to a molten glass in a heated vessel, (1) wherein an oxidizing gas is bubbled in...	03/14/2006
7000432	Process for producing a glass for cathode ray tubes A process for producing a glass for cathode ray tubes, having a Sb2O3 content of from 0 to 0.19% as represented by mass percentage and containing H2O, which process comprises a step of melting a raw material in an atmosphere under a ...	02/21/2006
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
6993937	Preform inlet arrangement for an optical fiber drawing furnace, a furnace provided with that kind of inlet arrangement, and a preform equipped to co-operate with that inlet arrangement An inlet arrangement for inserting a preform (3′) into a furnace (1′) for drawing a fiber (2′). The furnace includes an enclosure (4′) at the top of which there are both an opening to allow insertion of a preform which moves in tr...	02/07/2006
6912087	Ultra-thin glass polarizers and method of making same A method for making a polarizing glass article is provided. The method includes first providing a precursor glass containing metal-halide particles. The precursor glass may be encased in a gas-permeable medium. Then, form at least a first polarizing layer and a non-...	06/28/2005
6799440	Optical fiber deposition tube fused in deuterium atmosphere for attenuation improvement A silica deposition tube is fused in a deuterium (D2) gas atmosphere and optionally baked in a deuterium (D2) gas atmosphere to substantially reduce the hydrogen content in the tube for decreased fiber attenuation. Alternatively, raw silica mat...	10/05/2004
6724967	Method of making a functional device with deposited layers subject to high temperature anneal A method is disclosed for making a device having one or more deposited layers and subject to a post deposition high temperature anneal. Opposing films having similar mechanical properties are deposited on the front and back faces of a wafer, which is subsequently su...	04/20/2004
6606885	Infrared, glass polarizer and method A glass polarizer and a method of making the polarizer, the polarizer being produced from an R2 O--Al2 O3 --B2 O3 --SiO2 glass containing limited amounts of ZrO2 and TiO2, ...	08/19/2003
6588231	Method molding a glass composition into an optical element with reduced pull-out A mold has a moling surface of a material containing silicon carbide and/or silicon nitride as a main component and a carbon thin film formed on the molding surface to prevent fusion sticking. A glass substance which has a sag point not higher than 565° ...	07/08/2003
6536238	Vacuum degassing method for molten glass flow When molten glass which is under an atmosphere of pressure P, is fed into a vacuum chamber capable of rendering a pressure to the molten glass to be in a range of 38 [mmHg]-(P-50) [mmHg] to perform degassing to the molten glass, a staying time of the molt...	03/25/2003
6332339	Vacuum degassing method for molten glass flow When molten glass which is under an atmosphere of pressure P, is fed into a vacuum chamber capable of rendering a pressure to the molten glass to be in a range of 38 [mmHg]-(P-50) [mmHg] to perform degassing to the molten glass, a staying time of the molt...	12/25/2001
6167727	Process for the production of polarizing glass A process for producing a polarizing glass containing shape-anisotropic metallic particles dispersed in an oriented state therein, which comprises drawing a glass preform containing metallic halide particles dispersed therein while its viscosity being hel...	01/02/2001
6143676	Synthetic silica glass used with uv-rays and method producing the same An object of the present invention is to provide a synthetic silica glass optical material which exhibits excellent transmittance as well as durability for high output power vacuum ultraviolet rays, being emitted from, for example, ArF excimer lasers and ...	11/07/2000
6138479	Method for making an article having a gradient of composition The present invention relates to a method of making a rectangular bar have a gradient composition. In optical or ophthalmic applications, the gradient of composition ensures formation of a corresponding gradient of optical property, such as refractive ind...	10/31/2000
6092392	Process for producing thin glass on roll This invention relates to a continuous process for producing a web of thin, chemically hardened glass that can be wound on a roll. The process comprises the steps of (i) drawing glass, containing original alkali ions, to form a web of glass having a thick...	07/25/2000
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
5888265	Air separation float glass system A cryogenic air separation plant or a combined pressure swing adsorption plant and membrane separation plant is integrated with a float glass manufacturing system wherein oxygen from the plant is used for oxy-fuel combustion in the melt furnace and nitrog...	03/30/1999
5886820	Polarizing glass and production process thereof Disclosed are a polarizing glass comprising a glass layer(s) which contains shape-anisotropic metallic particles dispersed therein in an oriented state and a base glass which causes substantially no light scattering, said glass layer being provided on a p...	03/23/1999
5851258	Backup structure for a pipe for feeding a molten substance of high temperature A backup structure for a pipe for feeding a molten substance of high temperature has a pipe and a thermal insulation material surrounding the pipe wherein the pipe is provided with a plurality of projections on its outer periphery at predetermined interva...	12/22/1998
5849058	Refining method for molten glass and an apparatus for refining molten glass A refining method for molten glass comprising a stirring step for stirring molten glass in a stirring vessel, a feeding step for feeding the molten glass into a vacuum vessel via an uprising pipe, a degassing step wherein the molten glass is put under a r...	12/15/1998
5840095	Method and apparatus for producing flat metal powder directly from melt The yield of flat powder (6) of Al, Mg or their alloy is enhanced by forming, on a rotary cooling body (4), a film (8) which can prevent the flat metal powder (8) from sticking to the cooling surface. The film (8) adheres to the cooling surface at a force...	11/24/1998
5837628	Low cost and environmentally improved infrared transmitting germanate glasses This patent discloses the composition of germanate glass and a new method for its fabrication. The composition comprises germanate, the oxide of an alkali earth group, Al2 O3, ZnO, a halides compound eg. CaF2, CaCl2	11/17/1998

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Class 65/32.5 - With forming glass from molten state, with treatment of molten glass, or with drawing of glass in softened state