Patent application number | Description | Published |
20090126405 | SYSTEM AND METHOD FOR CONTROLLING THE ENVIRONMENT AROUND ONE OR MORE VESSELS IN A GLASS MANUFACTURING SYSTEM - A system and method are described herein that control the environment (e.g., oxygen, hydrogen, humidity, temperature, gas flow rate, pressure) around one or more vessels in a glass manufacturing system. In the preferred embodiment, the system includes a closed-loop control system and a capsule that are used to control the level of hydrogen around the exterior (non glass contact surface) of the vessel(s) so as to suppress the formation of gaseous inclusions and surface blisters in glass sheets. In addition, the closed-loop control system and capsule can be used to help cool molten glass while the molten glass travels from one vessel to another vessel in the glass manufacturing system. Moreover, the closed-loop control system and capsule can be used to maintain an atmosphere with minimal oxygen around the vessel(s) so as to reduce the oxidation of precious metals on the vessel(s). | 05-21-2009 |
20090142608 | Method for bonding refractory ceramic and metal - A method is disclosed for mechanically bonding a metal component to a ceramic material, comprising providing a metal component comprising an anchor material attached to at least a first portion of one surface of the metal component; providing a ceramic material having a first surface and a second surface, wherein the ceramic material defines at least one conduit extending from the first surface to the second surface, wherein the at least one conduit has a first open end defined by the first surface, a second open end defined by the second surface, a continuous sidewall and a cross sectional area; positioning the ceramic material such that at least a portion of the at least one conduit is in overlying registration with at least a portion of the anchor material; and applying a bonding agent into at least a portion of the at least one conduit. | 06-04-2009 |
20090217708 | METHODS AND APPARATUS FOR REDUCING PLATINUM-GROUP DEFECTS IN SHEET GLASS - A substantially-isolated/controlled, limited-volume, gas-filled space (e.g., | 09-03-2009 |
20090241602 | SYSTEM AND METHOD FOR CONTROLLING THE ENVIRONMENTAL AROUND ONE OR MORE VESSELS IN A GLASS MANUFACTURING SYSTEM - A system and method are described herein that control the environment (e.g., oxygen, hydrogen, humidity, temperature, gas flow rate, pressure) around one or more vessels in a glass manufacturing system. In the preferred embodiment, the system includes a closed-loop control system and a capsule that are used to control the level of hydrogen around the exterior (non glass contact surface) of the vessel(s) so as to suppress the formation of gaseous inclusions and surface blisters in glass sheets. In addition, the closed-loop control system and capsule can be used to help cool molten glass while the molten glass travels from one vessel to another vessel in the glass manufacturing system. Moreover, the closed-loop control system and capsule can be used to maintain an atmosphere with minimal oxygen around the vessel(s) so as to reduce the oxidation of precious metals on the vessel(s). | 10-01-2009 |
20100192633 | SYSTEM AND METHOD FOR CONTROLLING THE ENVIRONMENT AROUND ONE OR MORE VESSELS IN A GLASS MANUFACTURING SYSTEM - A system and method are described herein that control the environment (e.g., oxygen, hydrogen, humidity, temperature, gas flow rate, pressure) around one or more vessels in a glass manufacturing system. In the preferred embodiment, the system includes a closed-loop control system and a capsule that are used to control the level of hydrogen around the exterior (non glass contact surface) of the vessel(s) so as to suppress the formation of gaseous inclusions and surface blisters in glass sheets. In addition, the closed-loop control system and capsule can be used to help cool molten glass while the molten glass travels from one vessel to another vessel in the glass manufacturing system. Moreover, the closed-loop control system and capsule can be used to maintain an atmosphere with minimal oxygen around the vessel(s) so as to reduce the oxidation of precious metals on the vessel(s). | 08-05-2010 |
20120275483 | ELECTRODE HOLDER FOR ELECTRIC GLASS MELTING - An electrode holder for use in a furnace for melting a batch material to form molten glass is disclosed comprising a refractory coated nose member presented to and in contact with a molten glass material contained within the furnace. The refractory coating is preferably a flame- or plasma-sprayed ceramic such as alumina or zirconia. That protects the nose member from corrosion from the hot molten glass. | 11-01-2012 |
20130025323 | FIBER-BASED GASKET, GLASS MANUFACTURING SYSTEM, AND METHOD FOR REDUCING THERMAL CELL INDUCED BLISTERS - A fiber-based gasket, a glass manufacturing system, and a method are described herein for reducing thermal cell induced blisters. In one embodiment, the fiber-based gasket is placed in a connection between a first glass manufacturing device (e.g., capsule surrounding a downcomer) and a second glass manufacturing device (e.g., fusion draw machine surrounding an inlet). The fiber-based gasket has a density and compression which results in a gas permeation rate per unit surface area that is less than 22.5 ml/min/cm | 01-31-2013 |
20130025379 | GLASS SAMPLING APPARATUS AND METHOD FOR USING SAME TO OBTAIN A GLASS SAMPLE FROM A GLASS MELTING VESSEL - A glass sampling apparatus and a method for using the glass sampling apparatus to obtain a glass sample from molten glass within a glass melting vessel are described herein. In one embodiment, the glass sampling apparatus includes: (a) a sampling tube having a first end and a second end, where the second end is used to obtain the glass sample from the molten glass in the glass melting vessel; (b) a first valve; (c) a vacuum device; and (d) a tube network that couples the first end of the sampling tube to both the first valve and the vacuum device. | 01-31-2013 |
Patent application number | Description | Published |
20080290138 | Method for bonding refractory ceramic and metal - A method is disclosed for mechanically bonding a metal component to a ceramic material, comprising attaching an anchor material to at least a portion of one surface of the metal component, and then applying the ceramic material to at least a portion of the one surface of the metal component, such that after the ceramic material solidifies, the anchor material is substantially embedded in at least a portion of the ceramic material, thereby forming a mechanical bond between the metal component and the ceramic material via the anchor material. Also disclosed is an article comprising a metal component and a ceramic material mechanically bonded thereto through an anchor material attached to at least a portion of the metal component. | 11-27-2008 |
20100080078 | METHOD AND APPARATUS FOR HOMOGENIZING A GLASS MELT - The present invention is directed toward a method of reducing contamination of a glass melt by volatilized precious metal oxides that may condense on the stirrer shaft of a stirring vessel and fall back into the glass melt, by heating the shaft. In one embodiment, the stirrer shaft includes an interior cavity and a heating element disposed within the cavity. The heating element heats the shaft to a temperature sufficient to prevent volatilized materials from condensing on the surfaces of the shaft. | 04-01-2010 |
20100083704 | METHODS AND APPARATUS FOR MANUFACTURING GLASS SHEET - Methods and apparatus for manufacturing glass sheets that comprise the use of platinum group metal alloy or metal-alloy-clad vessels or conduits having alloy compositions including oxidizable species capable of undergoing redox reactions with molten glass components to suppress oxygen blister formation at glass contact surfaces. | 04-08-2010 |
20100122555 | Platinum 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 |
20100126224 | MOBILIZING STAGNANT MOLTEN MATERIAL - A method of delivering molten material from a delivering pipe having an outlet end to a receiving vessel having an inlet end is provided. The method includes arranging the delivering pipe and the receiving vessel in such a way that a gap exists between the outlet end of the delivering pipe and the inlet end of the receiving vessel and the molten material can exit the outlet end of the delivering pipe and enter the inlet end of the receiving vessel without spilling over the inlet end of the receiving vessel. Molten material is delivered to the delivering pipe and allowed to flow from the delivering pipe into the receiving vessel. Molten material existing in the gap is heated to facilitate its flow, | 05-27-2010 |
20110135957 | PLATINUM WELD STRUCTURES AND METHODS - A platinum welded structures are provided with a first oxide dispersion strengthened platinum or platinum alloy portion and a second oxide dispersion strengthened platinum or platinum alloy portion welded to the first platinum or platinum alloy portion. The second portion is welded to the first portion with a weld joint including a platinum or platinum alloy weld bead. The weld bead further includes at least one member selected from the group consisting of Zr, ZrO | 06-09-2011 |
20130003492 | Stirrers for minimizing erosion of refractory metal vessels in a glass making system - Stirring apparatuses for stirring molten glass are disclosed. The method includes stirring a molten glass with a stirrer comprising a layer containing at least about 50% iridium. An apparatus comprising an iridium-containing layer is also presented. In one embodiment, an apparatus for stirring molten glass includes a cylinder comprising a bore. A stirrer may be disposed in the bore. The stirrer may include a platinum or platinum alloy shaft coaxial with the cylinder. A plurality of impellers may project radially from the shaft into close proximity of a wall of the cylinder. Each impeller may include an arcuate distal end portion farthest from the shaft. The distal end portion of each impeller consists of iridium or an iridium alloy and the remainder of the impeller consists of platinum or a platinum alloy. The stirring apparatuses reduce metal loss from the refractory metal of the stirring apparatus. | 01-03-2013 |
20130333420 | INTEGRAL CAPSULE FOR BLISTER SUPPRESSION IN MOLTEN GLASS - A precious metal structure which has an internal gas permeable membrane is described herein for a glass manufacturing vessel configured to have molten glass flow therein. The internal gas permeable membrane can be supplied with an atmosphere of gas (or gases) to control the flux of hydrogen into our out of the molten glass or otherwise improve the production of the molten glass. In this manner, the undesirable detrimental reactions that can occur at the interface of the molten glass and precious metal interface which can cause defects in the molten glass such as bubbles or solid inclusions can be stopped or at least substantially reduced. | 12-19-2013 |
20140123710 | APPARATUS AND METHOD FOR MINIMIZING PLATINUM GROUP METAL PARTICULATE INCLUSION IN MOLTEN GLASS - An apparatus used in the production of glass, and a process for minimizing the inclusion of platinum group metal particulate into molten glass during glass production are provided, the apparatus comprising a first conduit formed of a platinum group metal, the first conduit comprising a top wall portion, a side wall portion, an outer surface, and a length, and a heat sink formed of a platinum group metal and affixed continuosly to the outer surface and extending longitudinally along at least part of the length of the first conduit proximate the top wall portion for the dissipation of heat therefrom, wherein the inner volume has a maximum temperature, T(max inside top wall), and the inner surface proximate the heat sink has a lower temperature, T(min inside top wall), and wherein platinum group metal particulate formed during the production process will deposit on the inner surface area of the top wall portion not in contact with the molten glass. | 05-08-2014 |
20140144183 | GLASS MANUFACTURING APPARATUS AND METHODS - Low-carbon monolithic refractories are provided. Methods of manufacturing glass employing low-carbon monolithic refractories are also provided. Methods and apparatuses for glass manufacture for reducing the formation of carbon dioxide blisters during glass manufacture are also provided. | 05-29-2014 |
20140144184 | SYSTEM AND METHOD FOR RESTRICTING INWARD HYDROGEN PERMEATION IN A GLASS MANUFACTURING SYSTEM - Hydrogen may permeate into an interior space of an article in response to molten glass being in contact with the outer surface of the article. The permeation may be restricted by having a fluid in a length of the interior space. The fluid may be in contact with the inner surface of the article, the fluid may fill at least about 33% of the volume of the length of the interior space, and the fluid may provide a predetermined partial pressure of hydrogen. Features may be provided for causing the fluid to flow within the interior space. | 05-29-2014 |
20140202211 | MOLDS FOR SHAPING GLASS AND METHODS FOR MAKING THE SAME - A mold for shaping glass can be made by a method that includes providing a mold body having a shaping surface comprising at least about 90% nickel and modifying the composition of the shaping surface of the mold body by exposing the shaping surface to an oxidizing heat treatment. The oxidizing heat treatment may include a ramping heat treatment, a fixed heat treatment, or both the ramping heat treatment and the fixed heat treatment. The ramping heat treatment may include increasing a heating temperature at a rate from about 20° C./hour to about 500° C./hour to a temperature from about 700° C. to about 1000° C. The fixed heat treatment may include holding the heating temperature from about 700° C. to about 1000° C. for a holding time of at least about 5 minutes. | 07-24-2014 |
20140206523 | HIGH PURITY NICKEL MOLDS FOR OPTICAL QUALITY GLASS FORMING - The present disclosure relates to high purity nickel molds for use in forming three dimensional glass substrates, along with methods of making three dimensional glass substrates. The mold compositions minimize imperfections in the formed glass substrates providing optical quality shaped glass articles for use in electronics applications. | 07-24-2014 |
20140230491 | HIGH VOLUME PRODUCTION OF DISPLAY QUALITY GLASS SHEETS HAVING LOW ZIRCONIA LEVELS - Methods and apparatus for producing display quality glass sheets are provided in which the batch materials for making the sheets are melted in a furnace whose glass-engaging surfaces comprise zirconia (ZrO | 08-21-2014 |
20140331718 | BONDED REFRACTORY CERAMIC AND METAL ARTICLE - A method is disclosed for mechanically bonding a metal component to a ceramic material, comprising providing a metal component comprising an anchor material attached to at least a first portion of one surface of the metal component; providing a ceramic material having a first surface and a second surface, wherein the ceramic material defines at least one conduit extending from the first surface to the second surface, wherein the at least one conduit has a first open end defined by the first surface, a second open end defined by the second surface, a continuous sidewall and a cross sectional area; positioning the ceramic material such that at least a portion of the at least one conduit is in overlying registration with at least a portion of the anchor material; and applying a bonding agent into at least a portion of the at least one conduit. | 11-13-2014 |
20140356628 | GLASS CERAMICS HAVING LOW RHODIUM LEVELS - A glass ceramic precursor glass and a glass ceramic having low levels of rhodium and a method of controlling the amount of rhodium in such glasses and glass ceramics. The precursor glass and glass ceramic contain from about 1 ppm to about 10 ppm and, in certain embodiments, from about 1 ppm to about 6 ppm rhodium. The method of controlling of reducing rhodium dissolution from a rhodium-containing material such as, for example, an alloy into a glass melt comprises controlling and/or lowering the partial pressure of oxygen at the rhodium-containing vessel/glass interface by imposing a high humidity condition around the external (non-glass-contact) surface of the rhodium-containing material. The lower concentration of rhodium minimizes its coloring effect on the white color of the glass ceramic. | 12-04-2014 |