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Forming product or preform from molten glass

Subclass of:

065 - Glass manufacturing

065170100 - PROCESSES

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
065090000 Sheet 68
065068000 Initial forming of hollow product or preform in mold cavity 14
065083000 With positive cooling of product or molten glass at forming area 11
065086000 Drawing and simultaneously forming hollow stock from molten glass 2
20110113829METHOD AND APPARATUS FOR PRODUCING A QUARTZ GLASS CYLINDER - In a known method for drawing a tubular quartz glass strand, SiO05-19-2011
20130186143Method and apparatus for manufacturing glass tubes having a predetermined inner profile, preferably for continuously manufacturing such glass tubes - The invention relates to a method and apparatus for manufacturing glass tubes having a predetermined inner profile according to a Vello-method or Down-Draw-method, wherein molten glass 07-25-2013
065082000 Reshaping of hot parison in mold cavity to form hollow article 1
20100147029one-press method for producing glass vessel - There is provided a one-press method for producing a glass vessel, the method enabling efficient production of even a glass vessel having the maximum thick wall part having a thickness larger than a predetermined value by using a divided type forming mold having a specific parting line. The one-press method for producing a glass vessel, the method including (A) a press step of molding, by one press, a parison having a finish form from the gob by using a forming die including a forming die base part and a mouth die which are each divided into two parts by a predetermined parting line, (B) a transfer step of transferring the parison having a finish form to a cooling mold, and (C) a cooling step of making the parison having a finish form into a glass vessel by blowing off a first cooling air along the inside peripheral surface of the parison having a finish form and supplying a second cooling air that cools the outside peripheral surface of the parison having a finish form, wherein the press step (A) is carried out using a forming die having a parting line positioned at the shoulder part between the mouth ring part and body part of the parison having a finish form.06-17-2010
Entries
DocumentTitleDate
20100083706Lithium silicate glass ceramic for fabrication of dental appliances - The present invention relates to preparing an improved lithium silicate glass ceramic for the manufacture of blocks for dental appliance fabrication using a CAD/CAM process and hot pressing system. The lithium silicate material has a chemical composition that is different from those reported in the prior art with 1 to 10% of germanium dioxide in final composition. The softening points are close to the crystallization final temperature of 830° C. indicating that the samples will support the temperature process without shape deformation.04-08-2010
20090193850Heating apparatus and glass manufacturing method - The present invention aims to provide a heating apparatus that can sufficiently suppress the occurrence of striae and the deterioration of optical properties, and that can reduce the maintenance burden. A heating apparatus 08-06-2009
20120174629METHOD AND DEVICE FOR DRAWING A QUARTZ GLASS CYLINDER FROM A MELT CRUCIBLE - The invention relates to a known method for drawing a quartz glass cylinder from a melt crucible comprising an inner crucible chamber extending in the direction of a center crucible axis and bounded by a side wall and a floor, wherein SiO07-12-2012
20100107697METHOD FOR PRODUCING ALKALI-FREE GLASS - To provide a method whereby it is possible to produce an alkali-free glass having little bubbles therein and excellent in homogeneity and flatness.05-06-2010
20100107696METHOD FOR REDUCING INCLUSIONS IN SILICA-TITANIA GLASS - The invention in one aspect is directed to a silica-titania glass have reduced striae and reduced inclusions, the glass have a point-to-point variation in titania content is 0.1 wt % or less through its thickness and a CTE of 0±3 ppb/° C. in the temperature range 5-35° C. The invention is further directed to a method for producing by using a method in which the time for repetition of the oscillation patterns used in the process are 10 minutes or less during preparation of the glass and after the glass has been prepared heating the glass at a temperature in the range of 1650-1700° C. for a time in the range of 4-10 day to reduce inclusions in the glass.05-06-2010
20130086947MOLD, CASTING APPARATUS, AND METHOD FOR PRODUCING CAST ROD04-11-2013
20120216571GLASS-MELTING FURNACE, PROCESS FOR PRODUCING MOLTEN GLASS, APPARATUS FOR PRODUCING GLASS PRODUCTS AND PROCESS FOR PRODUCING GLASS PRODUCTS - Glass raw material particles are dropped from an oxygen combustion burner 08-30-2012
20130160493VACUUM DEGASSING APPARATUS AND VACUUM DEGASSING METHOD FOR MOLTEN GLASS, AND APPARATUS AND PROCESS FOR PRODUCING GLASS PRODUCTS - This invention relates to a vacuum degassing vessel wherein even if bubbles of molten glass come into contact with an inner wall of an upper space of a vacuum degassing vessel to produce a molten glass flowing along the inner wall, a molten glass can be discharged to the outside of the vacuum degassing vessel, thereby performing vacuum degassing without deteriorating composition homogeneity of the molten glass.06-27-2013
20100071417ARC DISCHARGE METHOD, ARC DISCHARGE APPARATUS, AND FUSED SILICA CRUCIBLE MANUFACTURING APPARATUS - An arc discharge method of the present invention includes the steps of: heating and melting a non-conductive object by arc discharge using a plurality of carbon electrodes in an output range of 300 to 12,000 kVA; and setting a ratio of the distance between a contact position at which the carbon electrodes come in contact with each other and a front end to the diameter of the carbon electrode during the start of the arc discharge to be in the range of 0.001 to 0.9.03-25-2010
20100122555Platinum condensation abatement by electrostatic precipitation - A process and device for abating air-borne particles during glass melt handling processes by using electrostatic precipitation. The invention is effective in abating both precious metal inclusions and non-metallic inclusions in the produced glass.05-20-2010
20100101276Methods for manufacturing molded glass object and upper mold - This invention provides a manufacturing method of a molded glass object in which generation of defects such as dents and wrinkles due to catching of ambient gas between a molten glass drop and an upper mold is restrained in the case of manufacturing a molded glass object by press-molding of a dropped molten glass drop, and a manufacturing method of an upper mold for the manufacturing method of a molded grass object. A molten glass drop is press-molded by use of an upper mold having been subjected to a roughening treatment to roughen the surface on the molding surface to compress the molten glass drop.04-29-2010
20100077799Manufacturing Method of Lens and Lens - Since a lens droplet contacts with an outer shape regulation frame 04-01-2010
20110167872Method for Manufacturing Molded Glass Body - There is provided a method of manufacturing a molded glass body, wherein, in a mold-releasing step of releasing and withdrawing a molded body obtained after pressure-molding, from molds, relative positions of an upper mold and a lower mold are moved to take a retracting position at which, even if the molded glass body which has stuck on the upper mold falls down from the upper mold, the molded glass body does not fall on the lower mold. Thus, even if the molded body falls down from the upper mold, the molded glass body does not damage the lower mold.07-14-2011
20090282872Molten Glass Supply Apparatus and Process for Producing Glass Formed Article - A molten glass supply apparatus including a plurality of stirring vessels (K11-19-2009
20090255297BISMUTH CONTAINING FLUOROPHOSPHATE GLASS AND METHOD FOR MAKING THEREOF - New and improved compositions of doped and co-doped bismuth fluorophosphate glasses for lasers is disclosed that have a high refractive index (nD) of approximately 1.6 and higher, high transmission in the near infrared part of the spectrum, and a wide glass forming domain. The disclosed glass systems Al(PO3)3−BA (PO3)2−Bi(PO3)3−BaF2+RFx+dopands use dopants from the group of oxides and or fluorides of rare earth elements Nd, Er, Yb, Tm, Tb, Ho, Sm, Eu and Pr as well as MnO and mixtures thereof over 100 percent (wt %) of the glass-base composition. These glasses have high chemical durability, radiation resistance, efficiency of laser use in the infrared and blue spectrum, and improved duration of luminescence.10-15-2009
20100147028SYSTEM AND METHOD FOR TEMPERING GLASS CONTAINERS - A system and method is provided for tempering a glass container. The method includes the steps of pre-heating the glass container to a first predetermined temperature. The method also includes the steps of applying radio-frequency energy to the pre-heated glass container to heat the glass container to a second predetermined temperature and, after a predetermined amount of time, simultaneously cooling at least one surface of the heated glass container to a third predetermined temperature to treat the glass container. The method further includes the steps of, after a predetermined amount of time, quenching the treated glass container to a fourth predetermined temperature to produce a tempered glass container.06-17-2010
20100162762OPTICAL ELEMENT MANUFACTURING METHOD AND OPTICAL ELEMENT - Provided is an optical element manufacturing method by which optical elements, such as a beam shaping element having a molded side surface, are highly efficiently and accurately manufactured by pressure-molding a molten glass drop. After supplying a lower molding die with the molten glass drop of a prescribed volume at a temperature higher than that of the molding die, the molten glass drop is pressure-molded by the molding die, and a free surface solidified without being in contact with the molding die is formed between a molded upper surface and the molded side surface. The volume of the molten glass drop to be supplied is 0.8 times or more but not more than 0.97 times the volume of a space configured by an extended molded upper surface, an extended molded side surface and the molded lower surface when the molded upper surface and the molded side surface are extended.07-01-2010
20100192635MOLDING DIE AND MANUFACTURING METHOD OF OPTICAL ELEMENT - A molding die with a simple structure, which produces an optical element of a low eccentricity degree, without narrowing the option for materials of the molding die and a method for producing an optical element by using the molding die are provided. The molding die includes a top die, bottom die, guiding member having a guiding surface kept in contact with the side faces of the top die and bottom die during the press molding of glass material, an expansion member for pressing the top die and bottom die against the guiding surface by thermal expansion by heating, and a supporting member for supporting the guiding member and expansion member. Among these members, the expansion member has the greatest thermal expansion coefficient. The press molding is applied to the glass material while the top die and bottom die are pressed against the guiding member by the thermal expansion of the expansion member.08-05-2010
20120137737PROCESS FOR PRODUCING MOLTEN GLASS, GLASS-MELTING FURNACE, PROCESS FOR PRODUCING GLASS PRODUCTS AND APPARATUS FOR PRODUCING GLASS PRODUCTS - The present invention provides a process for producing a molten glass which can produce a molten glass having a good quality, a glass-melting furnace, a process for producing glass products and an apparatus for producing glass products.06-07-2012
20090107180Preform production apparatus for precision press molding, production method of a preform for precision press molding and production method of an optical element - A preform production apparatus for precision press molding, which is downsized but can produce preforms at a lower cost, and a production method thereof using the apparatus are provided. The production method of a preform for precision press molding includes forming a molten glass body C by way of receiving and cutting molten glass A, being flowed continuously from a discharge nozzle 04-30-2009
20090107179GLASS PASSAGE AND METHOD OF MANUFACTURING MOLDED PRODUCT OF OPTICAL GLASS USING THE PASSAGE - The present invention is that, in a glass passage where it is usual that the flow rate near the center tends to become high, stirring effect for the glass flow is enhanced whereby temperature distribution is made uniform and generation of stria and devitrification is reduced. As a result, there is provided a passage by which glass blocks of highly refractive glass or low-Tg glass in recent years where selection of molding conditions is very difficult are able to be obtained easily and in high quality. Another object is to provide a passage by which simple control in a short distance is made possible whereby miniaturization of the device is possible even in the conventional glass. A passage which is connected to a melted glass vessel and flows out the melted glass which is characterized in that, in the inner wall, the above-mentioned passage has a control board for controlling the flow of the melted glass. The passage according to the above, wherein the control board is installed in the inner wall of the passage in an angle against the progress of the glass flow.04-30-2009
20090113936Dental Glass - The present invention relates to a dental glass containing 50 to 70 wt. % of SiO05-07-2009
20090071194Manufacturing method of glass substrate for display - A method of manufacturing a glass substrate for a display including the steps of: 03-19-2009
20100300152STACK PROGRESSIVE PRESSING FOR MAKING SHAPED ARTICLES - A method for forming shaped articles (12-02-2010
20120240635APPARATUS AND METHOD FOR EXTRACTING A SILICON INGOT - Provided are an apparatus and method of extracting a silicon ingot. The apparatus for extracting a silicon ingot includes a chamber in which a silicon source material introduced into a cold crucible is melted, a primary extraction apparatus vertically movably installed in the chamber and configured to solidify the molten silicon to extract the silicon ingot, a movable apparatus configured to horizontally move the primary extraction apparatus, and a secondary extraction apparatus vertically movably installed under the chamber and configured to extract the silicon ingot in a state in which the primary extraction apparatus is moved to one side. Therefore, as the height of the extraction apparatus is reduced, manufacturing cost of equipment can be reduced and installation space of the extraction apparatus can also be reduced.09-27-2012
20100058809METHOD OF MANUFACTURING A GLASS OPTICAL ELEMENT - A manufacturing apparatus of the present invention has a pair of dies that form each cylindrical surface, and a plane member that forms side surfaces of an element. The upper die and the lower die has a cylindrical surface which is worked so as to have generatrix which connects intersection points between a non-arc axis and a cylindrical section and between an arc center axis and the cylindrical section. The plane member is pressed against reference surfaces of the upper die and the lower die. In this state, a glass material is put between the upper die and the lower die, and a distance between the upper die and the lower die is decreased. As a result, the cylindrical surfaces of the upper die and the lower die and the plane of the plane member are transferred onto the glass material.03-11-2010
20110174018MANUFACTURING PROCESS FOR SILICONE GLASS CONCENTRATOR LENS - A manufacturing process of silicone glass concentrator lens, wherein, a mold is provided with a material inlet hole and an air outlet hole that are respectively used for pouring in liquid silicone and exiting air respectively. Wherein, firstly, the mold is connected to a glass carrier plate in a vertical arrangement, then pouring the liquid silicone into the mold through the material inlet hole, thus exiting the excessive air through the air outlet hole of the mold automatically. Through the application of this manufacturing process, a bubble-free silicone glass concentrator lens can be made in a fast manner without the occurrences of liquid silicone overflow, hereby reducing the production cost.07-21-2011
20110247365MOLD AND GLASS MOLDED BODY MANUFACTURING METHOD - Disclosed is a mold used as a bottom mold for manufacturing glass molded bodies by accepting molten glass droplets that are dripped in and by compression molding of the molten glass droplets in conjunction with a top mold. The mold is provided with a base material that has a mold surface for compression molding of molten glass drops, and a coating layer formed on the mold surface. The surface of the coating layer formed on the mold surface has a rough surface region that comprises the center of the mold surface, and a mirror finished region that surrounds the outside of the rough surface region and has a lower arithmetic mean roughness Ra than the rough surface region.10-13-2011
20110162412METHODS FOR MANUFACTURING MOLDING DIE, GLASS GOB, AND GLASS MOLDED ARTICLE - Disclosed is a lower molding die that can well prevent the occurrence of an air bubble without narrowing the range of choice for materials for the lower molding die and, at the same time, is highly durable. Also disclosed is a method for manufacturing a molding die for molding molten glass droplets. The method comprises a step of machining a molding surface of the molding die, a polishing step of polishing the molding surface to an arithmetic average roughness (Ra) of not more than 10 nm after the machining step, a step of forming at least one cover layer on the surface of the molding surface after the polishing step, and a step of roughening the surface of the cover layer formed on the molding surface.07-07-2011
20090293546METHOD FOR MELTING A COMPOSITION OF RAW MATERIALS WITH AN ARCHED BURNER - The invention concerns a method for melting a composition of raw materials including introducing the composition in an oven to form a layer (12-03-2009
20100024485Method and Apparatus for the Purpose of Conserving Energy in the Glass Industry - The conservation of energy in the glass industries via the use of heat shields to decrease the amount of energy lost during transportation from the forming process to the annealing process. For maximum effectiveness, the thermal shields are made of materials whose surface has an emissivity of, but not limited too, less than 0.3. They are mounted from, or adjacent to, the means of conveyance of the glass material such that their use will not prohibit the normal production of such glass product. Their installation shall include the means for quick removal or relocation in case of production upsets. The heat shields reflect the radiant energy that is emitted from the high temperature glass back onto itself, and adjacent products, in a manner such as to reduce the loss of energy from such product that may subsequently be necessary for the annealing process.02-04-2010
20090277225Production of Glass - Soda lime silica float glass in ribbon form is produced at reduced cost by replacing at least part of the soda ash conventionally used as a source of sodium fluxing agent by calcined trona ore. The invention may use calcined trona ore from the deposits in the Green River Valley area of Wyoming, USA.11-12-2009
20120006062APPARATUS FOR MANUFACTURING GLASS MOLDING - Provided is an apparatus for manufacturing a glass molding which can manufacture a glass molding having a high precision optical surface. An apparatus for manufacturing a glass molding has a lower die which receives molten glass, and an upper die which conducts pressure molding of the molten glass supplied to the lower die in conjunction therewith, wherein the upper die has a first molding surface which transfers the optical surface, a second flat molding surface provided around the periphery of the first molding surface, and a third molding surface provided around the periphery of the second molding surface and tilting relative to the central axis of the upper die passing through the center of the first molding surface to spread in the direction of the lower die.01-12-2012
20120011890PREFORM PRODUCTION APPARATUS FOR PRECISION PRESS MOLDING, PRODUCTON METHOD OF A PREFORM FOR PRECISION PRESS MOLDING AND PRODUCTION METHOD OF AN OPTICAL ELEMENT - A preform production apparatus for precision press molding, which is downsized but can produce preforms at a lower cost, and a production method thereof using the apparatus are provided. The production method of a preform for precision press molding includes forming a molten glass body C by way of receiving and cutting molten glass A, being flowed continuously from a discharge nozzle 01-19-2012
20120151966GLASS MELTING FURNACE, PROCESS FOR PRODUCING MOLTEN GLASS, APPARATUS FOR PRODUCING GLASS PRODUCT, AND PROCESS FOR PRODUCING GLASS PRODUCT - The present invention provides (i) a glass melting furnace, (ii) a process for producing molten glass, (iii) an apparatus for producing a glass product, and (iv) a process for producing a glass product, which are capable of preventing deterioration of the quality of molten glass caused by deposition of particles floating on a wall of the furnace. The melting furnace described herein includes a melting tank in which a flue located substantially at the center of a ceiling wall and a number of first heating units are disposed, such that particles floating in the furnace are suctioned off by a suction power of the flue and discharged from the furnace without being directed to a surrounding furnace wall. This drastically reduces the amount of floating particles deposited on the furnace wall, which prevents damage to the furnace wall and deterioration of the quality of glass produced therein.06-21-2012
20120159991FINING AGENTS FOR SILICATE GLASSES - A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm06-28-2012
20120159992GLASS-MELTING FURNACE, PROCESS FOR PRODUCING MOLTEN GLASS, APPARATUS FOR PRODUCING GLASS PRODUCTS AND PROCESS FOR PRODUCING GLASS PRODUCTS - A glass-melting furnace, which suppresses the effect of exhaust gas on molten glass quality, a process for producing molten glass, and a process and apparatus for producing glass products. The glass-melting furnace containing: a raw glass material particle feed portion disposed downwardly at a furnace wall portion in an upper portion of the glass-melting furnace; a heating unit provided under the feed portion, which forms a gas phase portion for converting raw glass material particles into liquid glass particles; a flue inlet disposed on the upstream side of the gas phase portion in a flow direction of the molten glass liquid; a furnace-bottom portion, which accumulates the liquid glass particles that produce the molten glass liquid; and a discharge portion, which discharges the molten glass liquid.06-28-2012
20110179828FLUOROPHOSPHATE GLASS AND METHOD OF MAKING THEREOF - New and improved compositions of doped fluorophosphate glasses for lasers have a high refractive index (nD) of approximately 1.6 to 1.7, high transmission in the near infrared part of the spectrum and a wide glass forming domain. These glass systems, Ba(PO07-28-2011
20120167631PROCESS FOR PRODUCING MOLTEN GLASS, GLASS-MELTING FURNACE, APPARATUS FOR PRODUCING GLASS PRODUCTS AND PROCESS FOR PRODUCING GLASS PRODUCTS - The present invention provides (i) a process for producing molten glass from glass raw material particles and glass cullet pieces by an in-flight melting method; (ii) a process for producing glass products using the process (i); (iii) a glass melting furnace for carrying out this process (i); and (iv) an apparatus for producing glass products using the melting furnace (iii).07-05-2012
20100313603METHOD FOR MANUFACTURING MOLDING DIE, METHOD FOR MANUFACTURING GLASS GOB, AND METHOD FOR MANUFACTURING GLASS MOLDED ARTICLE - This invention provides a method for manufacturing a molding die having excellent durability, with which durability film peeling and air bubbles are effectively reduced. A molding surface having a predetermined shape is formed on a substrate, and a cover layer is deposited on the molding surface by a sputtering method which cover layer is then roughened by etching. In the above method, the cover layer is deposited with the substrate held by a substrate holding member which is rotated around a predetermined rotation axis to vary the relative position between a sputtering target and the substrate holding member in such a way that the angle between the normal line of the surface of the sputtering target and the rotation axis is temporarily varied.12-16-2010
20100326136Thermally Stable IR-Transmitting Chalcogenide Glass - A thermally stable chalcogenide glass, a process for making the same, and an optical fiber drawn therefrom are provided. A chalcogenide glass having the composition Ge12-30-2010
20120266633APPARATUS FOR SEALING A JOINT BETWEEN VESSELS FOR CONVEYING MOLTEN GLASS - A sealing apparatus for use in conveying molten glass from a first vessel to a second vessel, wherein at least a portion of the first vessel is nested within the second vessel without contact between the first and second vessels, and a flexible member comprising a gas-tight seal separates an atmosphere enclosed by the sealing apparatus and an ambient atmosphere. The sealing apparatus is useful for flexibly sealing a non-contact joint between conduits for supplying molten glass to a forming body.10-25-2012
20100229600METHOD FOR MANUFACTURING GLASS MOLDING DIE AND METHOD FOR MANUFACTURING MOLDED GLASS ARTICLE - Provide is a method for manufacturing a glass molding die in which deformation of a molding die in a process after machining is restrained without increased wear of a bit, and a method for manufacturing a molded glass article utilizing the glass molding die. A plated layer made of Ni—P plating is formed on the surface of a substrate, a rough machining is performed on the plated layer to form a shape similar to the desired final shape, the plated layer is then subjected to a thermal treatment, and finally finish machining is performed to form the desired final shape.09-16-2010
20120137736GLASS-MELTING FURNACE, PROCESS FOR PRODUCING MOLTEN GLASS, APPARATUS FOR PRODUCING GLASS PRODUCTS AND PROCESS FOR PRODUCING GLASS PRODUCTS - The present invention provides a glass-melting furnace etc. which can maintain homogeneity of molten glass in an apparatus and a process for producing molten glass by melting glass raw material particles and glass cullet pieces.06-07-2012
20120272685MELTING METHOD AND APPARATUS - A method and apparatus for melting a raw material such as glass. The method comprises a creating a flow of raw material interrupted by a heated phase separation barrier (11-01-2012
20120272684METHOD FOR MANUFACTURING GLASS, METHOD FOR MANUFACTURING GLASS MATERIAL FOR PRESS MOLDING, AND METHOD FOR MANUFACTURING OPTICAL ELEMENT - A method for manufacturing glass containing a component(s) from Bi11-01-2012
20110302963METHOD FOR THE PRODUCTION OF SOLAR GRADE SILICON - The present invention relates to a method for the preparation of solar grade silicon comprising crystallization of large high purity silicon crystals in a hyper eutectic binary or ternary alloy containing silicon, or a refined silicon melt, wherein small silicon crystals are added to the melt and the resulting large silicon crystals are separated from the melt. The separation may be performed by centrifugation or filtration.12-15-2011

Patent applications in class Forming product or preform from molten glass

Patent applications in all subclasses Forming product or preform from molten glass