| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 065027000 | Repairing or cleaning of apparatus; or batch dust prevention or control | 13 |
| 20090038342 | MOLTEN GLASS DELIVERY APPARATUS FOR OPTICAL QUALITY GLASS - A molten glass delivery system is modified to match it with the overflow downdraw process. A substantial number of defects not removed by the finer are diverted to the unusable inlet and distal edges of the sheet. In one embodiment, the stirring device is relocated from the outlet to the inlet of the finer. In another embodiment, the basic shape of the finer is preferably changed from a cylindrical shape to a Double Apex (or Gull Wing) shaped cross-section, whereby the apexes of the finer contain the glass that will form the unusable inlet end of the glass sheet. The finer vent or vents are preferably located at these apexes such that any homogeneity defects caused by the vents are diverted to the unusable inlet end of the glass sheet. The finer cross-section has a high aspect ratio for increased fining efficiency as compared to a cylindrical finer. | 02-12-2009 |
| 20090084136 | MOLDING DIE FOR MOLDING GLASS AND METHOD OF REPAIRING THE SAME - The present invention provides a molding die for molding glass, which includes a base member, on which a first buffer layer and a protective film are provided in order. The first buffer layer is made of titanium or any material which is easily attacked by a first attack solution. The first attack solution includes hydrofluoric acid. The protective film is made of platinum-iridium alloy, iridium-rhenium alloy, tantalum-ruthenium alloy, molybdenum-ruthenium alloy, molybdenum-rhenium alloy, or molybdenum-hafnium alloy. The method of repairing the molding die includes using the first attack solution to remove the first buffer layer that causes no damage on the base member, and then operating a sputtering process to build a new first buffer layer and a new protective layer on the base member. | 04-02-2009 |
| 20100011812 | GLASS FORMING APPARATUS AND GLASS FORMING METHOD - A glass forming apparatus and a glass forming method of high economical merit and high production efficiency are provided. More specifically, the glass forming apparatus has dies, in which at least one die is divided into a heat exchange unit and a press unit, and in the glass forming apparatus and glass forming method, the plane precision is improved in the contact dividing surfaces of the heat exchange unit and the press unit. | 01-21-2010 |
| 20110185769 | REDUCING CROWN CORROSION IN A GLASSMELTING FURNACE - Corrosion of the inner surface of the crown of a glassmelting furnace is reduced or avoided by directing at low velocity along that surface a gaseous stream comprising water vapor, or comprising the combustion products of an oxy-fuel burner operated at a stoichiometric ratio of at least 1.0, or the combustion products of a burner operated at a stoichiometric ratio less than 1.0, or by injecting into the furnace interior a gaseous reactant which reacts with alkali species in said space. | 08-04-2011 |
| 20110192196 | REDUCING CROWN CORROSION IN A GLASSMELTING FURNACE - Corrosion of the inner surface of the crown of a glassmelting furnace is reduced or avoided by directing at low velocity along that surface a gaseous stream comprising water vapor, or comprising the combustion products of an oxy-fuel burner operated at a stoichiometric ratio of at least 1.0, or the combustion products of a burner operated at a stoichiometric ratio less than 1.0, or by injecting into the furnace interior a gaseous reactant which reacts with alkali species in said space. | 08-11-2011 |
| 20110192197 | Melting Furnace Having Infinite Furnace Campaign - The invention relates to methods and to devices for a melting furnace, or for the conveying lines of the product to be melted, having an infinite life (furnace campaign). The same is achieved by means of the continuous/periodic, e.g. cyclic, exchange, in the optimum case, of all of the components surrounding the furnace interior/melting space, or surrounding the conveying lines, in that the components can be arranged/placed next to each other in a modular manner and that said components move in a certain direction while new individual parts are added at one of the free ends of the respective assembly and while worn/used individual parts are removed at the other free end of the respective assembly. For this purpose the individual components are held and/or moved by suitable receptacles, wherein the furnace interior/melting chamber remains stationary. | 08-11-2011 |
| 20120073326 | METHOD FOR ELIMINATING CARBON CONTAMINATION OF PLATINUM-CONTAINING COMPONENTS FOR A GLASS MAKING APPARATUS - In the formation of sheet material from molten glass, molten glass is formed in a melting furnace and transported through a precious metal delivery system to the forming apparatus. Disclosed herein is a method to mitigate carbon contamination of individual components of the precious metal delivery system prior to and/or during their use. The method involves positioning an oxygen generating material within portions of a precious metal component, and may comprise one or more heat treating steps of the component in an oxygen-containing atmosphere. | 03-29-2012 |
| 20120131956 | GLASS MANUFACTURING APPARATUSES WITH PARTICULATE REMOVAL DEVICES AND METHODS OF USING THE SAME - Glass manufacturing apparatuses with particulate removal devices and methods for using the same are disclosed. In one embodiment, a fusion draw machine for forming a glass web from molten glass includes an enclosure and a first pull roll and a second pull roll rotatably positioned in an interior of an enclosure. The first pull roll and the second pull roll cooperate to draw a glass web in a draw direction. A particulate removal device for removing particulate matter from the interior of the enclosure is fluidly coupled to the enclosure and includes a vacuum nozzle disposed in the interior of the enclosure and fluidly coupled to a vacuum source with a vacuum line. A particulate filter is fluidly coupled to the vacuum nozzle and the vacuum source and traps particulate matter exhausted from the interior of the enclosure through the vacuum nozzle. | 05-31-2012 |
| 20120324950 | APPARATUS AND METHOD FOR HEAT TREATING GLASS SHEETS - Disclosed is an apparatus and method for heat treating glass sheets, and in particular for heat treating very thing glass sheets arranged in closely spaced stacks. The glass sheets are positioned on a moving belt such that their major surfaces are substantially perpendicular to a direction of belt travel through the apparatus to aid in producing a uniform temperature profile within the glass sheets. The apparatus comprises air curtains positioned at the inlet and outlet of the apparatus to minimize the ingress of particulate into the apparatus. A reduced velocity of heated air flow within a lower portion of the apparatus relative to a velocity of the heated air in an upper portion of the apparatus causes particulate to drop out of the lower portion air flow. A rotating brush and vacuums positioned adjacent a lower portion of the belt assist in removing particulate from the moving belt. | 12-27-2012 |
| 20130055764 | CRYSTAL GROWTH FURNACE AND MOVING METHOD THEREOF - A crystal growth furnace is disclosed herein and includes a top cover, a body and a bottom portion. The top cover is configured to be moved by a top cover shifting mechanism. The body is configured to be moved vertically by a body shifting mechanism. The bottom portion is configured to be moved from the bottom of the crystal growth furnace by a bottom portion shifting mechanism and used to carry a crucible. When the top cover, the body and the bottom portion are connected together to be the crystal growth furnace, a silicon material disposed within the crucible is grown to be an ingot. | 03-07-2013 |
| 20140090419 | APPARATUS, SYSTEMS AND METHODS FOR REDUCING FOAMING DOWNSTREAM OF A SUBMERGED COMBUSTION MELTER PRODUCING MOLTEN GLASS - Apparatus including a flow channel defined by a floor, roof, and sidewall structure connecting the floor and roof. One or more combustion burners is positioned in either the roof, the sidewall structure, or both, and transfer heat to a molten mass of glass containing bubbles having a bubble atmosphere flowing through the flow channel. The burners contribute to formation of a channel atmosphere above the molten glass. Apparatus includes a device, at least a portion of which is positionable under a level of the molten glass in the flow channel, configured to emit a composition into the molten glass under the level to intimately contact the composition with the molten glass and bubbles therein. The composition diffuses into the bubbles to form modified atmosphere bubbles sufficiently different from the channel atmosphere to increase diffusion of a species in the channel atmosphere into the modified atmosphere bubbles. | 04-03-2014 |
| 20140230490 | METHODS FOR REDUCING ZIRCONIA DEFECTS IN GLASS SHEETS - Methods are disclosed for treating zircon-containing forming structures, e.g., zircon isopipes, with one or more treatment glass compositions in which defect-causing reactions between the zircon of the forming structure and molten glass are suppressed at the delivery temperature of the treatment glass. The treatment compositions can be used during start-up of a forming structure, between runs of the same production glass on a given forming structure, and/or when transitioning between runs of two production glasses on a given forming structure. The treatment compositions can be used with production glasses that are ion-exchangeable. | 08-21-2014 |
| 20160074974 | PROCESS FOR THE RECOVERY OF MOULDS FOR THE MANUFACTURING OF GLASS PARTS AND CONTAINERS - Process for the recovery of moulds ( | 03-17-2016 |
