Reshaping Of Planar Sheet Patents (Class 65/106)
  • Publication number: 20110100059
    Abstract: A sheet glass that has a side surface with an average surface roughness equal to or less than 0.2 ?m is provided. Furthermore, a method of manufacturing a sheet glass is provided that includes processing a base-material glass sheet to obtain a sheet glass that has a side surface with an average surface roughness equal to or less than 0.2 ?m. Moreover, a method of manufacturing a sheet glass is provided that includes processing a base-material glass sheet so that an average surface roughness of a side surface becomes equal to or less than a predetermined value according to a section modulus of the sheet glass that is to be manufactured.
    Type: Application
    Filed: January 10, 2011
    Publication date: May 5, 2011
    Inventors: Toshihiro NAKAMURA, Sadayuki TODA, Hisashi KOAIZAWA
  • Patent number: 7908885
    Abstract: Thin substrates, such as flat glass panels, are levitated on a porous media air bearing creating a pressurized film of air and preloaded against the air film by negative pressure areas. The pressure can be distributed most uniformly across the pressure areas by defusing the pressure through a porous medium. Such a bearing can be used for glass flattening by holding the glass such that the unevenness is migrated to the side opposite the side to be worked on.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: March 22, 2011
    Assignee: New Way Machine Components, Inc.
    Inventor: Andrew J. Devitt
  • Patent number: 7900477
    Abstract: There are the steps of conveying a glass plate by a roller conveyor including a plurality of rollers; and moving a roller in contact with the glass plate in conveyance to position the glass plate so as to conform a posture of the glass plate to a reference posture.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: March 8, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Ryo Kanno, Toshimitsu Sato, Takashi Hirotsu, Tomohiro Suwa, Isao Saito
  • Publication number: 20110023548
    Abstract: A glass ribbon coated with a flexible material, the flexible coating forming a flexible web portion that extends from an edge of the glass ribbon at least one millimeter. The flexible web portion can be used to facilitate handling of the glass ribbon in a manufacturing process, and may include registration markings, or perforations, that further facilitate precise positioning of the ribbon.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Inventors: Sean M. Garner, Gary E. Merz
  • Publication number: 20110019286
    Abstract: A concave lens as an optical component is made of glass containing 20 to 22% of B2O3, 30 to 40% of La2O3, and 19 to 25% of ZnO, expressed as wt %. The concave lens has a thickness t1 in its center portion of 0.5 mm or less, and a ratio (W/t1) of a diameter W with respect to the thickness t1 of 24 or more. The concave lens can be produced suitably by press forming.
    Type: Application
    Filed: July 21, 2010
    Publication date: January 27, 2011
    Inventors: Toru NANBA, Tetsuya SUZUKI, Toshiaki Takano, Tomokazu TOKUNAGA
  • Publication number: 20110020611
    Abstract: An apparatus for manufacturing a single-curved glass sheet with little difference between the radius of curvature of a front end portion and the radius of curvature of a rear end portion of the glass sheet. The apparatus includes a heating furnace and a cooling device. The cooling device is provided with a plurality of upper nozzles for spraying cooling air onto an upper surface of heated/molded curved glass sheet. The upper nozzles are moved by movement means parallel to a path of travel of the glass sheet.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 27, 2011
    Inventors: Kenshu Ando, Toshiya Funahashi, Kyoichi Fujihara
  • Publication number: 20110014428
    Abstract: There is provided a method of manufacturing a plate member including preparing a base plate member having main faces, and performing etching by immersing at least part of the base plate member in an etching liquid while controlling a lowering speed of a liquid surface of the etching liquid on the main faces of the base plate member to a desired lowering speed.
    Type: Application
    Filed: September 27, 2010
    Publication date: January 20, 2011
    Inventor: Toshihiro NAKAMURA
  • Patent number: 7866187
    Abstract: A press bending station includes an annular mold (5) and a full-face mold (6). Holes (10), selectively connected to a negative pressure source, are placed in portions of the full-face mold (6) that are determined by the configuration of the annular mold when the annular mold comes into contact with a heated glass sheet (2) during the press bending process. The sheet (2) is drawn by negative pressure through the holes (10) towards the full-face mold (6) and thus acquires its shape. Positive pressure may be selectively applied to the holes (10) to release the sheet (2). According to the invention, at least some of the holes (10) are arranged in at least one groove (11) formed in the mold face of the full-face mold. The grooves (11) according to the invention accelerate considerably the removal by negative pressure of the air between the molding face of the full-face mold (6) and the glass sheet (2) to be bent and thus improve the press bending process.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: January 11, 2011
    Assignees: Pilkington North America, Inc., Pilkington Automotive Deutschland GmbH
    Inventors: Robert J. Boisselle, Dieter Funk, Joachim Pilz, Andreas Gorges
  • Publication number: 20100330332
    Abstract: The cover according to the invention serves to encapsulate microsystems, wherein the cover comprises or is made of one or more cover units, and at least one cover unit comprises at least one first recess caused by deformation and bounded at least partially by at least one optical window, the quadratic surface roughness thereof being less than or equal to 25 nm. The invention further relates to a method for producing optical components, wherein the method is particularly also suitable for producing a cover according to the invention allowing encapsulation at the wafer level.
    Type: Application
    Filed: February 13, 2009
    Publication date: December 30, 2010
    Inventors: Hans Joachim Quenzer, Marten Oldsen, Ulrich Hofmann
  • Patent number: 7856851
    Abstract: A glazing element-bending process including first to fourth stages. The first stage bends the glazing element through gravitational depression on a first support providing it with a first central depression. The second stage continues the bending of the glazing element through gravitational depression on a second support, providing it with a second central depression more pronounced than the first and until such time as the whole periphery of the glazing element enters into contact with the second support, the glazing element being at a sufficiently high temperature to enable its central part to continue to sag following contact of the whole of the periphery. The third stage continues the bending of the glazing element through gravitational depression, providing it with a third central depression more pronounced than the second, the periphery being always in contact with the second support. The fourth stage halts the depression of the glazing element by cooling and gives it the desired final shape.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: December 28, 2010
    Assignee: Saint-Gobain Glass France
    Inventors: Serge Chiappetta, Guillaume Egele
  • Publication number: 20100319401
    Abstract: 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 segments that are located laterally or axially adjacent to previously-sintered segments such that, along respective width directions of the glass soot sheet, only a portion of the width is sintered at a given time interval during the heating.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 23, 2010
    Inventors: Calvin Thomas Coffey, Daniel Warren Hawtof, Stanley Zinn
  • Publication number: 20100316847
    Abstract: A method for bending radiation shielding glass which has a heavy metal oxide content of at least 50% by weight is provided, wherein first a mold is provided, a glass plate comprising a radiation shielding glass is then provided, the mold is preheated to a temperature of 300 to 400° C., the glass plate is placed on the mold, the glass plate and the mold are heated in a furnace to a temperature of 370 to 430° C., then heated together to a temperature of 400° C. to 500° C., preferably to 440 to 500° C., the total heating time being at least 30 minutes, preferably at least 60 minutes, the glass plate is then molded and finally the molded glass is cooled by means of a cooling program over a period of at least 60 minutes. For thermal prestressing, the glass body is supported at least at its outer periphery at a number of support points, introduced into a preheated furnace, heated to 400 to 500° C.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 16, 2010
    Inventors: Horst Schillert, Dirk Roessler, Detlef Mevers
  • Publication number: 20100317507
    Abstract: An optical glass comprising, by mass %, 12 to 40% of SiO2, 15% or more but less than 42% of Nb2O5, 2% or more but less than 18% of TiO2, (provided that Nb2O5/TiO2 is over 0.6), 0.1 to 20% of Li2O, 0.1 to 15% of Na2O, and 0.1 to 25% of K2O, and having an Abbe's number ?d of 20 to 30, a ?Pg,F of 0.016 or less and a liquidus temperature of 1,200° C. or lower.
    Type: Application
    Filed: January 22, 2009
    Publication date: December 16, 2010
    Inventors: Xuelu Zou, Yoshio Nojima, Hiroki Takazawa
  • Patent number: 7841212
    Abstract: A method for producing a shaped body (10) made of glass or glass ceramics comprises the steps of: (a) placing at least two glass blanks (12a, 12b) side by side on a shaped surface (14) of a temperature-resistant sagging mold (13); (b) sagging the glass blanks (12a, 12b) onto the shaped surface (14) by heating the sagging mold (13) and the glass blanks (12a, 12b); (c) attaching the sagged glass blanks (10a, 10b) to each other in order to form the shaped body (10); and (d) lifting the shaped body (10) from the sagging mold (13). A shaped body (10) comprises at least two glass blanks (10a, 10b) attached side by side and formed by sagging.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: November 30, 2010
    Assignee: Carl Zeiss Sports Optics GmbH
    Inventors: Hexin Wang, Kurt Becker, Lutz Autschbach
  • Publication number: 20100292066
    Abstract: A glass material for mold pressing, comprised of a core portion comprised of a multicomponent optical glass containing at least one readily reducible component selected from among W, Ti, Bi, and Nb, and a covering portion covering the surface of said core portion, comprised of a multicomponent glass containing none or a lower quantity of said readily reducible component than is contained in said core portion. A glass material for mold pressing comprising a core portion comprised of a fluorine-containing multicomponent optical glass and a covering portion covering the surface of said core portion, comprised of a multicomponent glass containing none or a lower quantity of fluorine than is contained in said core portion. A method for manufacturing an optical glass element comprising heat softening a glass material that has been preformed into a prescribed shape, and conducting press molding with a pressing mold, employing the above glass material of the invention.
    Type: Application
    Filed: March 28, 2007
    Publication date: November 18, 2010
    Inventors: Xuelu Zou, Yasuhiro Fujiwara, Hiroshi Kohno, Kohichiro Shiraishi
  • Patent number: 7832233
    Abstract: The present invention provides a method of making a decorated multilayer glass structure using a single firing step that includes that use of a crystallizing glass enamel composition that contains ingredients to ensure the complete burnout of the organic portion of the composition upon firing and bending of a mated pair of glass sheets. A benefit of the composition is that when applied to one sheet of a mated pair of glass sheets, it burns out completely during firing and bending of the pair. The presence of high levels of oxidizers in the composition ensures a supply of oxygen to enable combustion of the organic vehicle while firing the glass sheets and prior to the sintering of the enamel composition to only one glass sheet in a mated pair of decorated or colored glass sheets.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: November 16, 2010
    Assignee: Ferro Corporation
    Inventors: Terry J. Brown, George E. Sakoske
  • Publication number: 20100257900
    Abstract: The present invention relates to a heating apparatus for glass-sheet-forming, which prevents formation of a heater distortion in a portion of a glass sheet facing to a temperature-distributing heat shield.
    Type: Application
    Filed: June 28, 2010
    Publication date: October 14, 2010
    Inventors: Tatsuo YAJIMA, Akira Sugahara, Hiroshi Yamakawa, Akio Imaichi
  • Patent number: 7811482
    Abstract: A method of constructing a curved optical device includes assembling of at least one cell having opposed flexible substrates with a controlled distance therebetween to form a gap adapted to receive a fluid. The process continues by holding only a portion of the cell in a fixture, positioning a curved mold surface proximal the cell and heating at least one of the curved mold surface and cell. Next, the cell is conformed to the mold surface so that the cell substantially retains the curved shape when the heat and the mold surface are removed.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: October 12, 2010
    Assignee: AlphaMicron, Inc.
    Inventors: Roy Miller, Volodymyr Bodnar, Bahman Taheri
  • Publication number: 20100236290
    Abstract: In a preliminary forming step, positioning of a glass sheet is facilitated, and generation of a hinge mark by a flapping mechanism and generation of excessively bent portions, are prevented at the same time.
    Type: Application
    Filed: June 3, 2010
    Publication date: September 23, 2010
    Inventors: Masao Fukami, Taisei Mori, Yutaka Kitajima
  • Patent number: 7770414
    Abstract: The present invention relates to a process for manufacturing flat sheets of a glass-based material and to an apparatus therefor. The process comprises providing a glass preform, heating the glass preform in a furnace, forming a gob and a pre-sheet, removing the gob and drawing the glass pre-sheet into a flat glass sheet. Also provided is an apparatus for drawing a glass preform into a glass sheet, the apparatus comprising a draw furnace, stretching arms for stretching and drawing the pre-sheet into a glass sheet, and opposing edge rollers for applying a downward force on the glass sheet. The draw furnace may include a plurality of individual heating elements, the temperature of each heating element capable of being separately controlled. The apparatus may further include an annealing furnace for annealing the glass sheet.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: August 10, 2010
    Assignee: Corning Incorporated
    Inventors: Patrick J Cimo, Michael T Murtagh, Mark L Powley
  • Publication number: 20100162764
    Abstract: The invention relates to a method of longitudinally deflecting conveyor rolls intended for bending glass panels. The method includes deflecting the conveyor rolls during a glass-panel bending process by turning link member on which the ends of the conveyor rolls are mounted with bearings. In order to turn the link members of each conveyor roll, at least one link member is subjected to a force sufficient for its turning by a position-identifying electric drive. At least the other link member is subjected to a force sufficient for its turning by a second electric drive, which is controlled on the basis of position data provided by the position-identifying electric drive. The present invention relates also to an assembly applying the method for bending glass panels.
    Type: Application
    Filed: May 20, 2008
    Publication date: July 1, 2010
    Inventors: Pete Harjunen, Veijo Valtonen
  • Publication number: 20100147030
    Abstract: A method for forming a double-curved panel from a flat panel, which comprises processing a plastically deformable flat panel or rendering the flat panel plastically deformable to enable it to mould itself to a predetermined shape, wherein the shape is obtained by a primary supporting construction cooperating with a secondary supporting construction, wherein the primary supporting construction may or may not be adjustable to an invariant position that determines the shape, and the secondary supporting construction is adjustable between a starting position in which it supports the flat panel, and a finishing position in which the secondary supporting construction supports the double-curved panel, while said supporting construction rests on and is shaped in accordance with the shape of the primary supporting construction, wherein the adjustment from the starting position to the finishing position occurs at least subject to the distribution of the gravitational force exerted on the secondary supporting constructi
    Type: Application
    Filed: December 8, 2009
    Publication date: June 17, 2010
    Applicant: Technische Universiteit Delft
    Inventors: Daan Rietbergen, Karel Jan Vollers
  • Patent number: 7735339
    Abstract: An apparatus for working a glass plate includes: a transporting device for bending a glass plate in a concave shape in a cross-sectional view in a transporting direction and transporting the glass plate from a cutting section to a bend-breaking section; a cutting device for forming cut lines on the glass plate in the cutting section; and a bend-breaking device for bend-breaking the glass plate in the bend-breaking section.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: June 15, 2010
    Assignee: Bando Kiko Co., Ltd.
    Inventor: Shigeru Bando
  • Publication number: 20100129602
    Abstract: The invention is directed to a method of forming small, thin glass articles having a thickness of less than 5 mm by the use of a plunger and a die, the die having walls, a terminal area and a transition area in contact with both the walls and the transition area is such that the interior distance dimensions of the die gradually decrease as one progresses from the terminal area through the transition area to the walls.
    Type: Application
    Filed: November 23, 2009
    Publication date: May 27, 2010
    Inventor: Matthew John Dejneka
  • Patent number: 7721572
    Abstract: The apparatus performs a forced reshaping of a flat green glass part during a ceramicizing process in which the viscosity of the glass is temporarily lowered due to crystallization heat. The apparatus includes a continuous furnace (3) for the ceramicizing process: a reshaping device (2?) provided with activating openings (6); and vertically movable pressure-operated reshaping tools (9) arranged in the reshaping device (2?). The furnace (3) is provided with lateral openings (4) for temporarily connecting activating lines (8) to the activating openings (6) of the reshaping device (2?) in a sealed manner in order to operate the reshaping tools (9) by supplying pressurized air to the reshaping device or by producing a low pressure in the reshaping device (2?).
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: May 25, 2010
    Assignee: Schott AG
    Inventors: Martin Taplan, Herwig Scheidler, Ioannis Kosmas, Friedrich-Georg Schroeder, Wolfgang Schmidbauer, Torsten Gabelmann, Dieter Schoenig
  • Patent number: 7716949
    Abstract: A method having particular utility for making outer and inner formed windshield glass sheets is performed by glass sheet positioning centrally on a forming face (34) of a forming mold (32) to form each glass sheet to a design shape regardless of any size difference between the glass sheets from one cycle to the next.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: May 18, 2010
    Assignee: Glasstech, Inc.
    Inventors: Terry A. Bennett, Steven M. Connell
  • Patent number: 7712334
    Abstract: There are the steps of conveying a glass plate by a roller conveyor including a plurality of rollers; and moving a roller in contact with the glass plate in conveyance to position the glass plate so as to conform a posture of the glass plate to a reference posture.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: May 11, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Ryo Kanno, Toshimitsu Sato, Takashi Hirotsu, Tomohiro Suwa, Isao Saito
  • Patent number: 7694531
    Abstract: A method for forming microspheres on a microscopic level comprises the steps of defining holes through a substrate, disposing a sheet of thermally formable material onto the substrate covering the holes, heating the sheet of thermally formable material until a predetermined degree of plasticity is achieved, applying fluidic pressure through the holes to the sheet of thermally formable material, while the sheet of glass is still plastic, and forming microspheres on the substrate in the sheet of thermally formable material by means of continued application of pressure for a predetermined time. The invention also includes a substrate having a plurality of holes defined therethrough, a layer of thermally formable material disposed onto the substrate covering the plurality of holes, and a plurality of microspheres thermally formed in the layer by means of applied pressure through the holes when it has been heated to a predetermined degree of plasticity.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 13, 2010
    Assignee: The Regents of the University of California
    Inventors: E. Jesper Eklund, Andrei M. Shkel
  • Publication number: 20100055395
    Abstract: A method of making a shaped glass article includes applying a compression load to a surface of a glass sheet such that the compression load is distributed along a non-quality area of the glass sheet, wherein said non-quality area of the glass sheet circumscribes and adjoins one or more quality areas of the glass sheet. The method further includes holding the compression load against the surface of the glass sheet for a predetermined time during which a thickness of the glass sheet beneath the non-quality area decreases and the quality area protrudes outwardly relative to the surface of the glass sheet to form the shaped glass article.
    Type: Application
    Filed: October 15, 2008
    Publication date: March 4, 2010
    Inventor: Ljerka Ukrainczyk
  • Publication number: 20100050694
    Abstract: The invention relates to a device for bending a glass sheet comprising a bending form, the said form being furnished with means of modifying the temperature (cooling or heating) of its bending surface. The invention in particular provides good stability of the bending conditions while reducing the start-up period.
    Type: Application
    Filed: November 2, 2006
    Publication date: March 4, 2010
    Inventors: Yannick DAJOUX, Robert Lagneaux, Gilles Garnier
  • Patent number: 7665331
    Abstract: A method and machine for obtaining bent glass sheets. Glass sheets are brought to their softening temperature, then they are caused to travel over a shaping bed of advancing elements for advancing them which are arranged along a path having a circular arc-shaped profile, the sheets progressively assuming their shape on entering the bed and over a first shaping zone, then being hardened by tempering or cooling in a second zone of the bed until they leave, and then the bent glass sheets thus obtained are recovered. The shaping bed is produced with a profile extending in a circular arc of more than 90°, and, on leaving the shaping bed, the hardened glass sheets are moved in a direction opposite that in which they were fed in.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: February 23, 2010
    Assignee: Saint-Gobain Glass France
    Inventors: Jacques Leclercq, Gilles Garnier
  • Publication number: 20090297772
    Abstract: An object of the present invention is to provide a surface-treated glass having a concave portion on the order of nanometers, in which the depth of the concave portion is sufficiently large for the size thereof and which is free from an abnormal bump portion and excellent in the transparency to visible light. The present invention relates to a surface-treated glass having a plurality of the concave portions provided in a glass surface, in which a plane of the glass surface, excluding a region in which the concave portions are formed, is a flat plane, and the concave portions have an average open pore diameter of 10 nm to less than 1 ?m in a cross-sectional view thereof.
    Type: Application
    Filed: June 3, 2009
    Publication date: December 3, 2009
    Inventor: Shirou Tanii
  • Publication number: 20090266407
    Abstract: A method of manufacturing a transparent pane, in particular a glass pane, which includes on at least one of its main surfaces a surface structure including an assembly of specified individual motifs in relief, in particular pyramids, cones, or truncated cones, created by embossing or by rolling. A structure is created on the surface of the pane constituted by individual motifs, based on one or more basic motifs but which are distinguished from each other by their depth, their height, and/or the perimeter of their base area, and/or by the position of their peak with respect to their base. With this variation, formation of intensity peaks of the reflected light is prevented and at the same time a high quality of light trapping is obtained by panes suitable, for example, for solar applications.
    Type: Application
    Filed: June 13, 2006
    Publication date: October 29, 2009
    Inventors: Nils-Peter Harder, Ulf Blieske, Dirk Neumann, Marcus Neander, Michele Schiavoni, Patrick Gayout
  • Publication number: 20090229309
    Abstract: The present invention relates to a method and an apparatus for bending a glass sheet, and has an object of achieving high forming accuracy of a glass sheet along a perpendicular direction perpendicular to a conveying direction of the glass sheet, in particular, to obtain high forming accuracy both along the conveying direction and the perpendicular direction.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 17, 2009
    Inventors: Ken NOMURA, Nozomi OTSUBO, Hideki MURAMATSU, Toshimitsu SATO
  • Publication number: 20090217706
    Abstract: The invention relates to a method for producing a low-radiation cover glass with low intrinsic ?-radiation for radiation-sensitive sensors, in particular for use with semiconductor technology, without the production of intermediate moulds, by the direct shaping of plate glass with appropriate dimensions. The invention also relates to a device for carrying out said method.
    Type: Application
    Filed: October 2, 2006
    Publication date: September 3, 2009
    Applicant: Schott AG
    Inventors: Andreas Weber, Holger Wegener, Reinhard Kassner, Peter Brix
  • Publication number: 20090199595
    Abstract: A device for gravity bending of at least one glass sheet supported by at least one support forming part of a bending assembly, plural supports supporting the sheet during bending. The device includes a drive system for changing the shape of the support, the drive system controlling the rate of the change. A method of bending glass sheets utilizes the device.
    Type: Application
    Filed: December 4, 2006
    Publication date: August 13, 2009
    Inventors: Christophe Machura, Serge Chiappetta
  • Patent number: 7540173
    Abstract: For bending a glass sheet so that the glass sheet has a compound curvature, an apparatus comprises a furnace including hearth beds on a bed support and a quenching unit provided with upper and lower air blowers. The final hearth bed may have a top surface with a simple curvature, be provided with one upstream corner cut away thereby defining a cut surface section and arranged in such a manner that the cut surface section is nearly parallel to the hearth bed adjacent to the final hearth bed. Alternatively, the final hearth bed may have a top surface with a compound curvature, so that the glass sheet is bent under the conditions set by controlling a temperature in a downstream part of the furnace, adjusting the inclination of the lower air blower and/or rotating final hearth bed so as to reverse the upstream and downstream ends thereof.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: June 2, 2009
    Assignee: Central Glass Company, Limited
    Inventors: Masami Nishitani, Makoto Shinohara
  • Publication number: 20090100874
    Abstract: A glass strip manufacturing method includes heat-drawing a preform glass plate by softening the preform glass plate with heat and drawing the preform glass plate down to a desired thickness. The preform glass plate has a level of transmittance that allows radiant heat absorbed therein while passing therethrough to diffuse before locally accumulating therein. The minimum transmittance of the preform glass plate in a thickness of 3 millimeters at a wavelength of 800 to 2200 nanometers is 86 to 95%.
    Type: Application
    Filed: December 17, 2008
    Publication date: April 23, 2009
    Inventors: Toshiaki TATEISHI, Yasuhiro NAKA, Tetsuya KUMADA
  • Publication number: 20090084138
    Abstract: The present invention relates to a method or an apparatus for bending a plate-like material such as a glass sheet for a side window having a double-curved surface for automobiles wherein the positioning of support frame and forming mold is performed with high precision.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 2, 2009
    Inventors: Akio Imaichi, Junji Hori, Takashi Hirotsu
  • Patent number: 7510989
    Abstract: The invention is directed to a silver-containing polarizing boroaluminosilicate glass composition that has been doped with a noble metal selected from the group consisting of Pt, Pd, Os, Ir, Rh and Ru, including mixtures thereof, to nucleate and precipitate silver ions to silver metal without the need for a reducing atmosphere step. The invention is further directed to a method for making the glass composition of the invention. Using the composition and method of the invention, one can prepare a glass having a selected null transmission range.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: March 31, 2009
    Assignee: Corning Incorporated
    Inventors: Nicholas Francis Borrelli, George Bigelow Hares, Sasha Marjanovic, David John McEnroe, Katherine Rose Rossington, Joseph Francis Schroeder, III
  • Patent number: 7505650
    Abstract: Microlenses are formed on a substrate having a first absorption within an operational wavelength range, and a second absorption outside the operational wavelength range, wherein the second absorption is greater than the first absorption. One or more waveguides are coupled with a processing light beam having a wavelength outside the operational wavelength range, and the processing light beam is directed through the waveguides to the substrate to locally heat and expand the substrate so as to form microlenses on the substrate surface. The processing light beam is terminated to stop heating of the substrate and fix the microlenses.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 17, 2009
    Assignee: Corning Incorporated
    Inventors: Richard Robert Grzybowski, Stephan Lvovich Logunov, Alexander Mikhailovich Streltsov
  • Patent number: 7497096
    Abstract: An apparatus for conveying a curved glass sheet includes a disk roll conveyor and a roll conveyor set positioned downstream of the disk roll conveyor. The roll conveyor set has a plurality of roll conveyor units. In this apparatus, first and second adjusting devices are operable to provide the curved glass sheet with (a) a first conveyance route in which the disk roll conveyor and the roll conveyor set are in a horizontal position to provide a smooth horizontal conveyance surface or (b) a second conveyance route in which the disk roll conveyor is in a downward position and in which at least one roll conveyor unit at a downstream side of the roll conveyor set is in an upward position to provide a continuous concave conveyance surface.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: March 3, 2009
    Assignee: Central Glass Company, Limited
    Inventors: Osamu Asai, Yoshiki Katada, Kenji Ujiie
  • Publication number: 20090047509
    Abstract: The invention relates to a coated glass pane with a low-e and/or solar control coating comprising at least one layer sequence which comprises at least the following transparent layers: a lower anti-reflection layer, an IR-reflecting layer, an upper anti-reflection layer. At least one of the anti-reflection layers comprises at least one compound layer containing a mixture of an (oxy)nitride of Si and/or Al and of ZnO. The inventive coated glass panes are preferably heat treatable, e.g. toughenable and/or bendable.
    Type: Application
    Filed: March 30, 2007
    Publication date: February 19, 2009
    Applicants: Pilkington Group Limited, Pilkington Italia S.p.A.
    Inventors: Giovanni Gagliardi, Marco Ronci, David Alistair Wood, John Robert Siddle
  • Patent number: 7484386
    Abstract: The invention relates to a method and apparatus for controlling a treatment process in safety glass production by means of information representing a load of glass panels. Flat glass panels are conveyed through a heating lehr (2) and a quenching section (22). The treatment process is preceded by using a line camera (6) for reading the information representing a load of glass. This information is used in controlling the treatment process. The load-representing information is supplemented by automated detection of a glass panel's coating or the absence of coating. A glass panel's thickness is also measured. This information about coating and thickness is used in quenching for automated regulation of a quenching time and a blast pressure. Such information is also particularly useful for the automated control of convection heating (3c) included in the heating device.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: February 3, 2009
    Assignee: Glaston Services Ltd. OY
    Inventor: Toivo Janhunen
  • Publication number: 20090000334
    Abstract: A glass bending line for quickly shaping a complex bent glass sheet is provided that includes moving a ring-type female mold, which has a heated glass sheet placed on it, and a full face heated male mold, toward one another. Upon making shaping contact between the glass sheet and the male mold, a vacuum is applied through holes extending through the male mold, for a time sufficient to form the glass sheet to a desired shape. When the glass sheet has been shaped, the vacuum is terminated and pressurized air is connected to the holes to release the bent glass sheet from the male mold. The bent glass sheet is then quickly transported to a quenching station or an annealing station on a continuous conveying device. Hence, the complex bent glass sheet is achieved without the use of a shuttle ring.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 1, 2009
    Inventors: Robert J. Boisselle, Thomas G. Kleman, Daniel P. Lubelski
  • Publication number: 20080307830
    Abstract: A method for forming glass sheets is performed by a system (10) that includes a forming station (14) having lower and upper molds (28, 30) between which glass sheets G are cyclically received from a furnace (12) on a vacuum transfer platen (34), formed between the lower and upper molds (28, 30), and transferred to a delivery mold (42) for delivery such as to a quench station (16). The vacuum transfer platen (34) and the delivery mold (42) are moved at different elevations into the forming station (14) in respective underlapping and overlapping relationships to each other so each glass sheet forming cycle can begin within the forming station before the prior forming cycle is completed in a time overlapping manner that reduces the cycle time.
    Type: Application
    Filed: August 25, 2008
    Publication date: December 18, 2008
    Applicant: GLASSTECH, INC.
    Inventors: Michael J. Vild, David B. Nitschke, Dean M. Nitschke, James P. Schnabel, JR.
  • Publication number: 20080260999
    Abstract: A glass sheet bending method for glass sheet bending utilizes a primary actuating mechanism (154) for moving mold support linkages to provide glass sheet bending with a constant radius and utilize control link detachable connections (39) that allow a secondary actuating mechanism (155) to provide bending of a glass sheet independently of linkage movement on the other side of the detached connections. The resultant bent glass sheet has two portions of different constant radii of curvature and also has a junction between the two portions.
    Type: Application
    Filed: April 19, 2006
    Publication date: October 23, 2008
    Applicant: GLASSTECH, INC.
    Inventors: Alfredo Serrano, Gilbert L. Reed, Thomas J. Zalesak, Paul D. Ducat
  • Patent number: 7437892
    Abstract: One or more sheets, e.g. two glass sheets heated to their deformation temperature are shaped by positioning the sheets on a sheet supporting surface of an outline mold. The outline mold and press face of a shaping member are moved relative to one another to bias the marginal edge portions of the upper sheet against the press face to establish an enclosure around the peripheral edges of the sheets. Vacuum is applied to the peripheral edges of the sheets to pull the air from between the sheets, and from between the press face and adjacent sheet surface as positive or atmospheric pressure is applied to bottom sheet to move the sheets against the press face. Optionally a vacuum can be pulled through passageways in the press face during the shaping of the sheets and pressurized air moved through the passageways after the sheets are shaped to move the sheets away from the press face.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: October 21, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventor: William R. Siskos
  • Publication number: 20080216515
    Abstract: In a heating drawing, a base material glass plate is heated and softened in a heating furnace, and drawn to a desired thickness to form a glass strip. In the heating drawing, the base material glass plate is heated so that the base material glass plate has a U-shaped temperature distribution in a width direction. Such process can be realized through heating by a heating element which has a non-heating portion at a position opposite to a central portion of the base material glass plate in the width direction and a heating portion on both sides of the non-heating portion. Thus provided is a method of manufacturing a glass strip, the method includes heating and softening the base material glass plate, and drawing the base material glass plate to a desirable thickness to form a glass strip, and is capable of manufacturing a thin, rod-like glass strip with an excellent flatness.
    Type: Application
    Filed: November 1, 2006
    Publication date: September 11, 2008
    Applicant: The Furukawa Electric., LTD
    Inventors: Tetsuya Kumada, Yasuhiro Naka, Toshihiro Nakamura, Toshiaki Tateishi
  • Publication number: 20080190143
    Abstract: A device and method for bending a glazing unit or plural glazing units positioned one on top of the other, with a first train of carriages, bearing transport supports and running between a loading zone in which at least one glazing unit is deposited on a transport support of a carriage and a transfer zone, a furnace section heating the glazing units to their bending temperature in their path towards the transfer zone, and a second train of carriages running between the transfer zone and a final cooling section with an unloading station, which is equipped with transport supports that differ from the transport supports of the first train of carriages.
    Type: Application
    Filed: January 11, 2006
    Publication date: August 14, 2008
    Inventors: Michael Balduin, Michael Labrot, Hubert Havenith, Karl-Josef Ollfisch, Herbert Radermacher, Gunther Schall