...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 8181485 | Roll-to-roll glass soot sheet sintering method and apparatus An ultra-thin glass sheet is formed using a roll-to-roll glass soot deposition and sintering process. The sintering involves initially heating and sintering one or more central segments of a glass soot sheet, and progressively heating and sintering glass soot sheet ... | 05/22/2012 |
| 8176753 | Methods and apparatus for reducing heat loss from an edge director An apparatus for making a glass sheet includes a forming wedge with a pair of inclined forming surface portions converging along a downstream direction to form a root. The apparatus further includes an edge director intersecting with at least one of the pair of down... | 05/15/2012 |
| 8141388 | Radiation collimator for infrared heating and/or cooling of a moving glass sheet A glass manufacturing system and a method are described herein that use an enhanced temperature control device to help manufacture a uniformly thick glass sheet that is substantially stress free. In one example, the enhanced temperature control device includes an ar... | 03/27/2012 |
| 8056365 | Sheet glass forming apparatus One embodiment of the present invention is an improved sheet glass forming apparatus. In another embodiment, a precise thermal control system redistributes the flow of molten glass at the weirs to counteract the degradation of the sheet forming apparatus which inevi... | 11/15/2011 |
| 8033137 | Process to preserve isopipe during coupling Methods for reducing stress on an isopipe during manufacture of a drawn glass sheet are disclosed including a method comprising providing an isopipe having a root, heating the isopipe to a predetermined temperature, maintaining the isopipe at the predetermined tempe... | 10/11/2011 |
| 7818980 | Forming glass sheets with improved shape stability Systems, methods, apparatus and products relate to display glass from curved glass ribbons, to improve shape stability in glass ribbons, to creation of reduced stress glass ribbons, and to creation of improved shape stability and reduced stress of display glass, whi... | 10/26/2010 |
| 7430880 | Pull roll assembly for drawing a glass sheet A pull roll assembly is described herein that is used to draw a glass sheet. The pull roll assembly includes a first roll assembly, a second roll assembly and a device (e.g., differential drive, sensor(s)). The device enables one to control the first and/or second r... | 10/07/2008 |
| 7386999 | Defect control in the making of sheet glass by the fusion process A molten glass delivery system for use in producing sheet glass by a fusion process is provided. The delivery system includes a first conduit (9) which surrounds a portion of a second conduit (19) with a free surface (21) of molten glass (31 | 06/17/2008 |
| 7358205 | Alkali-free glass substrate An alkali-free glass substrate containing, by mass percent, 50-70% of SiO2, 10-25% of Al2O3, 5-20% of B2O3, 0-10% of MgO, 0-15% of CaO, 0-10% of BaO, 0-10% of SrO and 0-5% of ZnO, also containing SnO2 | 04/15/2008 |
| 7213414 | Process for producing flat glass The present invention relates to improvement in a method of supplying a glass ribbon in a molten state to be supplied from a glass melting furnace to a flat glass forming apparatus, which can further improve the smoothness of a flat glass after formed. A glass ribbo... | 05/08/2007 |
| 7155935 | Sheet glass forming apparatus One embodiment of the present invention is an improved sheet glass forming apparatus. In another embodiment, a precise thermal control system redistributes the flow of molten glass at the weirs to counteract the degradation of the sheet forming apparatus which inevi... | 01/02/2007 |
| 7071134 | High transmittance glass sheet and method of manufacturing the same A high transmittance glass sheet is provided that is formed of a soda-lime-silica glass composition containing, expressed in wt. %, less than 0.020% of total iron oxide in terms of Fe2O3 and 0.006 to 2.0% of zinc oxide. The glass sheet allows t... | 07/04/2006 |
| 7032412 | Methods of manufacturing glass sheets with reduced blisters Methods of manufacturing glass sheets with manufacturing systems that including platinum-containing components are provided. The method includes providing a barrier coating to reduce the hydrogen permeability of the platinum-containing components which reduces the p... | 04/25/2006 |
| 7026542 | Cover glass for a solar battery, a method for producing the cover glass and a solar battery module using the cover glass A transparent substrate for a cover for a solar battery and a method for producing the same are presented. Hemispherical concave portions are formed in a surface of light entering side of a cover glass almost over the entire surface wherein the ratio d/D of the dept... | 04/11/2006 |
| 7007511 | Device for supporting a ribbon of glass A device for supporting a ribbon of glass, having at least one roller arranged in an area of an underside of the ribbon of glass. In order to keep a ribbon of glass as free as possible of mechanical damage during production, at least one support device is assigned t... | 03/07/2006 |
| 7006228 | Methods for quantifying the oxidation state of glass The present invention provides methods for measuring Fe (II) and Fe (III) levels in a glass composition, for using those measured levels for determining a relative oxidation state of the glass material, and for further making a determination based on those measureme... | 02/28/2006 |
| 6997017 | Overflow downdraw glass forming method and apparatus The forming apparatus of the present invention preferably includes an orifice on top of the trough. The uniquely shaped orifice substitutes for the weirs as the controlling entity for glass thickness. The orifice is designed such that as it deforms, it maintains a l... | 02/14/2006 |
| 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 |
| 6903037 | High transmittance glass sheet and method of manufacturing the same A high transmittance glass sheet is provided that is formed of a soda-lime-silica glass composition containing, expressed in wt. %, less than 0.020% of total iron oxide in terms of Fe2O3 and 0.006 to 2.0% of zinc oxide. The glass sheet allows t... | 06/07/2005 |
| 6851280 | Method of making a halogen lamp and other analogous lamps and objects, and apparatus for the manufacture thereof The present invention generally relates to a method of making halogen lamps and halogen lamp bulbs, as well as other analogous lamps and objects. The present invention also relates to apparatus used in a method of making halogen lamps and halogen lamp bulbs, as well... | 02/08/2005 |
| 6844280 | Flat glass having high transmittance The present invention is to provide a high transmittance glass sheet that has a composition containing as coloring components, expressed in wt. %, 0.005 to less than 0.02% of total iron oxide in terms of Fe2O3, less than 0.008% of FeO, and 0 to... | 01/18/2005 |
| 6815070 | Polymer-coated thin glass film substrates The invention relates to a glass-plastic composite film, especially for use in electronic components and devices, such as displays. The inventive film consists of a glass film which is between 10 μm and 500 μm thick, and is characterised in that a polymer layer wi... | 11/09/2004 |
| 6502423 | Method and apparatus for making individual glass panes A method and apparatus is described, with which individual rectangular glass panes of thickness between 0.03 mm and 2 mm can be cut from a glass band (2) drawn vertically from a hot forming device (1) in an in-line process with reduced rejects and reduced... | 01/07/2003 |
| 6418754 | Apparatus and method for mold changing in heated glass sheet forming station A method for heated mold changing at a forming station (24) is performed by apparatus (32) in a heated chamber (22) where heated glass sheets are cyclically formed. A switching station (318) is located adjacent the forming station (24). An unloading stati... | 07/16/2002 |
| 6415630 | Method and device for producing a homogenous sheet of quartz glass without streaks In a method for producing a streak-free quartz glass sheet with a highly homogeneous degree of refraction, a quartz glass rod is lowered into a melting pot parallel to a longitudinal axis of the quartz glass rod. A cross-section of the melting pot is larg... | 07/09/2002 |
| 6357263 | Method for bending a glass sheet, a ring mold for bending a glass sheet, and apparatus using the ring mold In bending a glass sheet, the load applied to an intermediate glass sheet can be equalized to improve the quality of a final glass sheet. For this purpose, a forming ring 1 comprises a first forming frame 15 and a second forming frame 16, and the swingabl... | 03/19/2002 |
| 6311523 | Process for forming a glass sheet A process for forming a glass sheet, which is a process for continuously forming a glass sheet, and which comprises a step of introducing a vapor film-forming agent, which is not vapor at least around room temperature and which is vapor at a temperature above ... | 11/06/2001 |
| 6216491 | Lcd panel production A method of producing a glass panel for a LCD device. The method comprises depositing on at least one surface of the panel a transparent film from an atmosphere of an atomized, or ionized, inert, refractory material, or reactive precursor, the film being ... | 04/17/2001 |
| 6128924 | Arsenic-free glasses This invention is related to glasses for use as substrates in flat panel display devices, more specifically to a family of aluminosilicate glasses in which less than 0.2 mole percent and preferably no As2 O3 is used as a fining agent... | 10/10/2000 |
| 6101845 | Process for forming a glass sheet A process for forming a glass sheet, which is a process for continuously forming a glass sheet, and which comprises a step of introducing a vapor film-forming agent, which is not vapor at least around room temperature and which is vapor at a temperature a... | 08/15/2000 |
| 5824127 | Arsenic-free glasses This invention is related to glasses for use as substrates in flat panel display devices, more specifically to a family of aluminosilicate glasses in which less than 0.2 mole percent and preferably no As2 O3 is used as a fining agent... | 10/20/1998 |
| 5772715 | System and method for processing sheet glass A processing system (20,20') for processing sheet glass G includes a housing (22) and at least one slit seal (38i,38i',38e,38e') constructed to permit continuous passage of sheet glass in an efficient manner without fluttering. The slit seal functions as ... | 06/30/1998 |
| 5700305 | Method of producing heatable mirrors by depositing coatings on glass A method of producing heatable mirrors comprising depositing onto a ribbon of hot glass during the production process a reflecting coating whereby the mirrors so formed have a visible light reflection of at least 70% and depositing an electroconductive he... | 12/23/1997 |
| 5667547 | Method for manufacture of quartz glass plates A layer of quartz glass soot is deposited continuously on a substrate consisting of quartz glass grains with a lower degree of sintering activity than the quartz glass soot and the soot is sintered by passing it continuously through a heating zone to form... | 09/16/1997 |
| 5597394 | Process for the manufacture of a flat glass sheet with improved characteristics A flat glass sheet is manufactured using the float process. Before annealing of glass carried on rollers, the glass is conveyed by a fluid bed formed by a mixture of gases, in order to cool the glass to approximately 600° C. before it reaches an annealin... | 01/28/1997 |
| 5342426 | Making glass sheet with defect-free surfaces and alkali metal-free soluble glasses therefor This invention is directed to a method for preparing glass sheet having surfaces which are essentially defect-free and equivalent in smoothness to polished glass surfaces which comprises the steps of: Two different batches of alkali-metal-free batches are... | 08/30/1994 |
| 5100449 | Method of forming glass articles Disclosed is a method and apparatus for drawing an elongated glass article such as a fiber optic device. The article is drawn upwardly from a source through the surface of a quantity of molten metal having a vertical temperature gradient. The source can b... | 03/31/1992 |
| 4917717 | Apparatus for and process of coating glass Apparatus for pyrolytically forming a metal compound coating on an upper face of a hot glass substrate 1 comprises conveyor means 2 for conveying the substrate 1 in a downstream direction 3. A coating chamber 6 opening downwardly onto the path 1 and means... | 04/17/1990 |
| 4906270 | Method for drawing glass tapes A method for drawing glass sheets of crystallization-sensitive glass such as borosilicate glass or glass ceramic. A melt in a vat of a glass furnace is supplied through a feed channel to a drawing chamber from which a glass sheet is drawn perpendicularly ... | 03/06/1990 |
| 4816053 | Production method for a low cost color CRT with self-polished flat faceplate The use of a flat faceplate comprised of self-polished float glass substantially reduces the cost of a cathode ray tube incorporating a flat tensioned shadow mask while affording a high degree of video image acuity. The float glass flat faceplate does not... | 03/28/1989 |