Reshaping Of Planar Sheet Patents (Class 65/106)
  • Patent number: 8418502
    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: Grant
    Filed: June 28, 2010
    Date of Patent: April 16, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Tatsuo Yajima, Akira Sugahara, Hiroshi Yamakawa, Akio Imaichi
  • Publication number: 20130086948
    Abstract: An apparatus and methods for bending sheet glass are disclosed. The present invention improves on the state-of-the-art by providing apparatus and methods that prevent unwanted distortion of the glass sheet. The apparatus and methods utilize localized heating at the bend to allow for overall glass sheet temperatures to be reduced, along with optional mechanical devices for improved bend quality.
    Type: Application
    Filed: October 8, 2012
    Publication date: April 11, 2013
    Inventors: Antoine Gaston Denis Bisson, Curtis Richard Cowles, Laurent Joubaud, David John McEnroe, Aniello Mario Palumbo
  • Patent number: 8413467
    Abstract: The invention relates to a device for cambering a glass sheet, said device comprising a pressing station provided with a male press and a female press which are arranged opposite each other in a complementary manner. The male press is formed from at least two distinct resilient parts, a base and at least one forming complement, which are adapted in such a way as to be fixed to each other. Said forming complement is detachable and interchangeable according to the form to be applied to the glass sheet, and comprises a fixing surface which is adapted in such a way as to be fixed to a fixing surface of the base, and a forming surface which is adapted in such a way as to be pressed against the glass sheet in order to apply the desired form thereto. The invention also relates to an industrial installation comprising one such device, and to a method for implementing said device.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: April 9, 2013
    Assignee: AGC Flat Glass Europe SA
    Inventor: Jean-Francois Guillaume
  • Publication number: 20130081428
    Abstract: A method for manufacturing curved glass sheet includes the following: an equipment, including a matching first mold core and a second mold core, is provided; a raw glass sheet is provided and placed on the second mold core covering second mold cavity; a pressure is controlled in the first and second mold cavities to a first pressure; the mold cores are closed and heated, to raise the raw glass sheet to a temperature of about glass transition temperature of raw glass sheet; a gas is supplied into the first mold cavity to raise the pressure in the first mold cavity to a second pressure which is greater than first pressure, in which the raw glass sheet is bent to the second forming surface of second mold core under pressure; mold cores are opened and cooled down to obtain the curved glass sheet.
    Type: Application
    Filed: November 18, 2011
    Publication date: April 4, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., FU TAI HUA INDUSTRY (SHENZHEN) CO., LTD.
    Inventors: SHYAN-JUH LIU, CHU-SHENG CHEN, WEI-PING LI
  • Patent number: 8397540
    Abstract: A deformation apparatus for reforming a glass sheet comprises a central portion, a first edge mold movably coupled to a first end of the central portion and configured to be linearly translated along a linear mold axis in a first direction toward the central portion. The deformation apparatus further includes a second edge mold movably coupled to the second end of the central portion and configured to be linearly translated along the linear mold axis in a second direction opposite the first direction and toward the central portion. Methods are also provided including the step of cooling a reformed glass sheet, wherein a greater shrinkage of the reformed glass sheet relative to a shrinkage of the deformation apparatus is accommodated by a movement of at least the first edge mold in a first direction toward the central portion of the deformation apparatus.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: March 19, 2013
    Assignee: Corning Incorporated
    Inventors: Thierry Luc Alain Dannoux, Paul Delautre, Allan Mark Fredholm, Laurent Joubaud
  • Patent number: 8397537
    Abstract: A method of forming, on the surface of a glass material, a raised feature having a height within a target range, comprising (1) providing a glass material having a surface, (2) providing the glass material locally, at a location at or below the surface, with an amount of energy causing local expansion of the glass material so as to raise a feature on the surface at the location, (3) detecting the height of the raised feature or the height over time of the raised feature, (4) (a) if the height is below or approaching a value below the target range, providing the glass material at the location with energy in a greater amount, or (b) if the height is above or approaching a value above the target range, providing the glass material at the location with energy in a lesser amount, and (5) repeating steps (3) and (4) as needed to bring the height within the target range. Methods and devices for automating this process are also disclosed.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: March 19, 2013
    Assignee: Corning Incorporated
    Inventors: Richard R Grzybowski, Alexander Mikhailovich Streltsov, James Scott Sutherland
  • Patent number: 8381546
    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: Grant
    Filed: May 20, 2008
    Date of Patent: February 26, 2013
    Assignee: Glaston Corporation
    Inventors: Pete Harjunen, Veijo Valtonen
  • Publication number: 20130042650
    Abstract: A mold for bending glass, including a cellular solid material including cells that form cavities in the molding area, the cells representing more than 40% of the volume of the material. A low-heat-capacity tool bends glass panes in the context of processing tempered or laminated glass. A process for manufacturing the bending mold includes assembly of metal sheets of different shapes placed parallel to one another so as to form a cellular unit, then machining of the molding area of the unit, the area being placed substantially perpendicular to the metal sheets.
    Type: Application
    Filed: May 18, 2011
    Publication date: February 21, 2013
    Applicant: Saint-Gobain Glass France
    Inventors: Herve Thellier, Christophe Machura, Robert Lagneaux, Romain Thepot
  • Patent number: 8375746
    Abstract: A formed glass shelf is provided having a central region with an upper planar surface and a curved perimeter region surrounding the central region, which has an edge. The curved perimeter region is non-coplanar with the central region, and the edge is offset in a range of about 2 mm to 6 mm from the upper planar surface of the central region to contain spills on the shelf. A method is provided for slump-forming the shelf, including slump-forming an oversized blank and removing an outermost portion to achieve the finished size.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: February 19, 2013
    Assignee: Clarion Technologies, Inc.
    Inventors: Alan D. Picken, Ye Cailin
  • Patent number: 8367437
    Abstract: A method of manufacturing a light-emitting device includes arranging a plate-shaped glass on a light-emitting element mounting surface of a substrate having a light-emitting element mounted thereon, arranging a metal thin plate on the plate-shaped glass so as to sandwich the plate-shaped glass between the substrate and the metal thin plate, placing the substrate, the plate-shaped glass and the metal thin plate between a first mold on a side of the substrate and a second mold on a side of the metal thin plate, hot-pressing the substrate, the plate-shaped glass and the metal thin plate by using the first mold and the second mold to seal the light-emitting element with the plate-shaped glass, and after cooling the plate-shaped glass, removing the thin plate adhered to the plate-shaped glass from the plate-shaped glass.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: February 5, 2013
    Assignee: Toyoda Gosei Co., Ltd.
    Inventor: Seiji Yamaguchi
  • Patent number: 8336333
    Abstract: A diffractive optical element includes stacked first and second diffraction gratings made of different materials. The materials of the first and second diffraction gratings are glass. The first and second diffraction gratings have grating surfaces contacted to each other. The materials satisfy a predetermined condition when Tg2 and At2 are a transformation point temperature and a yield point temperature of the material of the first diffraction grating, and Tg3 and At3 are a transformation point temperature and a yield point temperature of the material of the second diffraction grating.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: December 25, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Reona Ushigome
  • Patent number: 8327667
    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: Grant
    Filed: January 11, 2006
    Date of Patent: December 11, 2012
    Assignee: Saint-Gobain Glass France
    Inventors: Michael Balduin, Michael Labrot, Hubert Havenith, Karl-Josef Ollfisch, Herbert Radermacher, Guenther Schall
  • Publication number: 20120297834
    Abstract: An apparatus for shaping at least one glass sheet. The apparatus includes a lower press ring and an upper press ring configured to clamp a perimeter section of the glass sheet between the lower press ring and the upper press ring. The apparatus also includes an upper press at least partially disposed within the upper press ring, the upper press configured to shape at least a section of the glass sheet inside the perimeter section of the glass sheet.
    Type: Application
    Filed: May 27, 2011
    Publication date: November 29, 2012
    Applicant: Pittsburgh Glass Works, LLC
    Inventors: David V. King, David T. Perry, Kurt Steinbacher
  • Publication number: 20120279257
    Abstract: A deformation apparatus for reforming a glass sheet comprises a central portion, a first edge mold movably coupled to a first end of the central portion and configured to be linearly translated along a linear mold axis in a first direction toward the central portion. The deformation apparatus further includes a second edge mold movably coupled to the second end of the central portion and configured to be linearly translated along the linear mold axis in a second direction opposite the first direction and toward the central portion. Methods are also provided including the step of cooling a reformed glass sheet, wherein a greater shrinkage of the reformed glass sheet relative to a shrinkage of the deformation apparatus is accommodated by a movement of at least the first edge mold in a first direction toward the central portion of the deformation apparatus.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 8, 2012
    Inventors: Thierry Luc Alain Dannoux, Paul Delautre, Allan Mark Fredholm, Laurent Joubaud
  • Patent number: 8302429
    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: Grant
    Filed: March 10, 2009
    Date of Patent: November 6, 2012
    Assignee: Asahi Glass Company, Limited
    Inventors: Ken Nomura, Nozomi Otsubo, Hideki Muramatsu, Toshimitsu Sato
  • Patent number: 8281617
    Abstract: A coated article is provided which may be heat treated (e.g., thermally tempered) and/or heat bent in certain example instances. In certain example embodiments, a zinc stannate based layer is provided between a tin oxide based layer and a silicon nitride based layer, and this has been found to significantly reduce undesirable mottling damage upon heat treatment/bending. This results in significantly improved bendability of the coated article in applications such as vehicle windshields and the like.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: October 9, 2012
    Assignees: Centre Luxembourgeois de Recherches pour le Verre et la Ceramique S.A. (C.R.V.C.), Guardian Industries Corp.
    Inventors: Jose Ferreira, Pierrot Pallotta, Richard Blacker, Muhammad Imran
  • Patent number: 8281619
    Abstract: A method for forming shaped articles (28?) includes preparing a stack (26) having at least an adjacent set (27) of preformed material (28) and forming mold (30), where the preformed material (28) has an edge portion (34) that extends beyond a periphery of the forming mold (30), and the forming mold (30) has an external surface (32) with a desired surface profile of a shaped article. The stack (28) is heated. The stack (28) is advanced through a constriction (56) that has an internal surface configured to fold the edge portion (34) of the preformed material (28) into contact with the external surface (32) of the forming mold (30) as the edge portion (34) passes through the constriction (56), thereby forming a shaped article (28?) from the preformed material (28). The shaped article (28?) is then separated from the forming mold (30).
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: October 9, 2012
    Assignee: Corning Incorporated
    Inventor: Thierry Luc Alain Dannoux
  • Publication number: 20120237779
    Abstract: Provided is a glass roll (1) formed by rolling a glass film (2) around a roll core (4) under a state in which a resin film (3) is superposed on an outer peripheral surface side of the glass film (2). The resin film (3) is superposed on the outer peripheral surface side of the glass film (2) under a state in which tension of from 100 kPa to 1 GPa is applied to the resin film (3). The following relationships hold true: {(tg×Eg)/(tp×Ep)}×(tg/R)?0.1, and 1×10?5?tg/R?1×10?3, where tg [m] represents a thickness of the glass film (2), Eg [Pa] represents a tensile modulus of elasticity of the glass film (2), tp [m] represents a thickness of the resin film (3), Ep [Pa] represents a tensile modulus of elasticity of the resin film (3), and R [m] represents an outer diameter of the roll core (4).
    Type: Application
    Filed: March 14, 2012
    Publication date: September 20, 2012
    Inventors: Yasuo TERANISHI, Koichi Mori, Hiroki Mori, Yasuo Yamazaki
  • Patent number: 8256244
    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: Grant
    Filed: October 24, 2008
    Date of Patent: September 4, 2012
    Assignee: Asahi Glass Company, Limited
    Inventors: Akio Imaichi, Junji Hori, Takashi Hirotsu
  • Publication number: 20120206796
    Abstract: The present invention is directed to a method for making infrared transmitting graded index optical elements by selecting at least two different infrared-transmitting materials, each with a different refractive index, having similar thermo-viscous behavior; assembling the infrared-transmitting materials into a stack comprising one or more layers of each infrared-transmitting material resulting in the stack having a graded index profile; and forming the stack into a desired shape. Also disclosed is the related optical element made by this method.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 16, 2012
    Inventors: Daniel J. Gibson, Jasbinder S. Sanghera, Guillermo R. Villalobos, Ishwar D. Aggarwal, Dean A. Scribner
  • Publication number: 20120198890
    Abstract: The present invention relates to a method of shaping a glass sheet in one dimension, by roll forming in a manner to selectively minimize/eliminate undesired curvature from the glass sheet. Such shaping is achieved by the selective location in first and second, shaping zones, of shaping rolls having first and second shaping configurations and , optionally, by varying the velocity of the glass sheet as it moves through the shaping zones, thus varying the time portions of the glass sheet are in contact with certain shaping rolls.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 9, 2012
    Applicant: Pilkington Group Limited
    Inventors: Robert J. Boisselle, Daniel P. Lubelski
  • Publication number: 20120198889
    Abstract: A manufacturing method of a glass strip, the method including a heating and drawing process of heating and softening a glass plate preform, drawing the glass plate preform to have a desired thickness, and forming a glass strip, wherein at the heating and drawing process, the glass plate preform is drawn so that an internal pressure of a heating furnace is kept positive relative to an atmospheric pressure and so that gas flows introduced to both surfaces of the glass plate preform, respectively are equal to each other within the heating furnace.
    Type: Application
    Filed: April 20, 2012
    Publication date: August 9, 2012
    Applicant: THE FURUKAWA ELECTRIC CO., LTD.
    Inventors: Toshihiro Nakamura, Tetsuya Kumada, Yasuhiro Naka
  • Publication number: 20120177914
    Abstract: An aspect of the present invention relates to a press-molding glass material, which comprises a core part comprised of optical glass and a silicon oxide film of less than 15 nm in thickness covering at least a portion of the core part, the portion being to be an optically functional surface, as well as has a surface free energy as measured by a three-liquid method of equal to or lower than 75 mJ/m2. A further aspect of the present invention relates to a method of manufacturing a press-molding glass material comprising a core part comprised of optical glass and a silicon oxide film covering at least a portion of the core part to be an optically functional surface.
    Type: Application
    Filed: December 16, 2010
    Publication date: July 12, 2012
    Applicant: HOYA CORPORATION
    Inventors: Takashi Igari, Takeshi Ishimine
  • Publication number: 20120144866
    Abstract: A method for manufacturing curved glass sheet includes the following steps: providing a mold which includes a first mold core and a second mold core corresponding to the first mold core; providing a raw glass sheet and placing the raw glass sheet on the second mold core; heating the first mold core to a first temperature, and heating the second mold core and the raw glass sheet to a second temperature which is equal to or lower than the glass transition temperature of the glass sheet but higher than the first temperature; closing the mold and hot pressing the first mold core on the glass sheet; opening the mold, and cooling the glass sheet to obtain the curved glass sheet. An annealing step can also be provided to the curved glass sheet. A mold for manufacturing the curved glass sheet is also provided.
    Type: Application
    Filed: March 23, 2011
    Publication date: June 14, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., FU TAI HUA INDUSTRY (SHENZHEN) CO., LTD.
    Inventors: SHYAN-JUH LIU, CHU-SHENG CHEN, LAI-BING HUANG, REN-JUN YANG, LEI LIU
  • Publication number: 20120131961
    Abstract: A method for bending a sheet of material into a shaped article includes providing the sheet of material. A reformable area and a non-reformable area of the sheet of material are heated to a first temperature range corresponding to a first viscosity range. The reformable area of the sheet of material is subsequently heated to a second temperature range corresponding to a second viscosity range. The reformable area of the sheet of material is reformed into a selected shape by at least one of sagging the reformable area of the sheet of material and applying a force to the sheet of material outside of or near a boundary of the reformable area.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 31, 2012
    Inventors: Thierry Luc Alain Dannoux, Arnaud Dejean, Allan Mark Fredholm, Patrick Jean Pierre Herve, Laurent Joubaud, Sophie Peschiera, Stephane Poissy
  • Publication number: 20120131955
    Abstract: The present invention relates to a method for manufacturing an ultra-thin glass substrate, the method including: a feeding step of feeding a preform for a glass substrate to a production line while being held; a heating step of heating the preform fed from the feeding step to a temperature around a softening point thereof; and a drawing step of drawing the preform that has softened in the heating step to form an ultra-thin glass substrate, in which the preform has been wound on a cylindrical first winding roll.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Inventors: Yutaka Kuroiwa, Seiki Ohara
  • Publication number: 20120135199
    Abstract: Disclosed is a glass material for press forming providing an optical element having a sufficient optical performance without surface cracks, cloudiness, scratches, and the like even when the glass material contains an easily reducible component. Also disclosed are an optical element having a sufficient optical performance without surface cracks, cloudiness, scratches, and the like and a method for manufacturing the same. Specifically disclosed are a glass material for press forming and a glass optical element each of which comprises a core portion composed of multiple component optical glass and a composite surface layer covering at least a region serving as an optical functional surface of the core portion. The core portion is composed of optical glass that contains an easily reducible component and does not contain Pb. The composite surface layer includes a first surface layer that covers the core portion and a second surface layer that covers the first surface layer.
    Type: Application
    Filed: May 19, 2010
    Publication date: May 31, 2012
    Applicant: HOYA CORPORATION
    Inventors: Kouichi Satou, Yuuichi Tokunaga
  • Publication number: 20120111054
    Abstract: Methods and apparatus for guiding flexible glass ribbons (13) without mechanically contacting the central portion (4) of the ribbon are provided in which two curved sections are formed in the ribbon which stiffen the ribbon so that lateral forces can be applied to the ribbon without causing it to buckle. The curvatures of the curved sections are along the direction of motion (15) of the ribbon and can be produced using curved air-bars (12,14) and/or pairs of cylindrical rollers (5a,5b,16a,16b). The lateral forces can be applied by pairs of guide rollers (7a,7b,9a,9b) which can be mounted on spring-loaded pivot arms (6,19,29) and can have a complaint outer coating or sleeve (35). The guiding system can be used in the winding of the glass ribbon onto a cylindrical core (11).
    Type: Application
    Filed: October 13, 2011
    Publication date: May 10, 2012
    Inventors: Douglass L. Blanding, Sean Matthew Garner, Gary Edward Merz, John Earl Tosch
  • Patent number: 8164817
    Abstract: A method of forming a mirrored bent cut glass shape includes bending a flat sheet of glass to establish a curved sheet of glass. A machine vision system determines a surface profile of the curved sheet of glass, and a computer numerical controlled cutting tool is positioned at the curved sheet of glass and its cutting wheel is maintained at or close to 90 degrees to the tangential plane of the curved sheet of glass. At least one of (a) the cutting wheel and (b) the curved sheet of glass is controlled in three dimensions to cut a bent cut glass shape from the curved sheet of glass, and such controlling is, at least in part, responsive to the surface profile of the curved sheet of glass. A mirror reflector is established at a surface of the bent cut glass shape to form a mirrored bent cut glass shape.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: April 24, 2012
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Patent number: 8156762
    Abstract: Described herein are methods for making microfluidic devices comprising glass or glass-containing materials, wherein the methods have decreased cost and/or improved dimensional properties over similar formed glass articles produced using current techniques.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: April 17, 2012
    Assignee: Corning Incorporated
    Inventors: Thierry Luc Alain Dannoux, Paulo Gaspar Jorge Marques, Robert Michael Morena, Cameron Wayne Tanner
  • Patent number: 8151600
    Abstract: A method for glass-blowing on a microscopic level includes the steps of defining a plurality of microholes in a wafer, disposing a sheet of thermally formable material onto the wafer covering the microholes, heating the sheet of thermally formable material until a predetermined degree of plasticity is achieved, applying self-induced fluidic pressure by expansion of the heated trapped gas in the microholes to the sheet of thermally formable material, while the sheet is still plastic, and simultaneously forming a plurality of blown micro-objects in the sheet on the wafer by means of continued application of pressure for a predetermined time.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: April 10, 2012
    Assignee: The Regents of the University of California
    Inventors: Erik Jesper Eklund, Andrei M Shkel
  • Patent number: 8146387
    Abstract: A process and system for bending glass sheets heated to their softening point. The glass sheets are laid on a concave bending frame and prebent by gravity. The prebent glass sheets are transferred to a transfer former with a concave forming surface, the transfer former being moved up through the concave bending frame, the perimeter of which is larger, and thus picking up the glass sheets. The transfer former is positioned so that in vertical projection it overlies a final bending former in the form of a frame with a concave forming surface. The transfer former is moved up through the larger-diameter final bending former, the glass sheets being laid on the final bending former. The glass sheets are bent into their final shape, and at the end of the bending operation, the glass sheets in their final shape are transferred from the final bending former to a transport system and cooled.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: April 3, 2012
    Assignee: Saint-Gobain Glass France
    Inventors: Karl-Josef Ollfisch, Thomas Meissen, Herbert Radermacher, Michael Labrot
  • Publication number: 20120070624
    Abstract: The invention relates to a curved glass pane, made of float glass, the area of a main face of which is greater than 1.5 m2 and the product of its two depths of bending is greater than 3000 mm2, and such that its point located on the normal to its surface passing through its center of gravity has a radius of curvature of less than 3 m in any direction, the variation in its thickness in the longitudinal float direction being less than 10 ?m over 500 mm. This pane may be assembled into laminated glazing of the automobile windshield type. Such a windshield has a very small amount of double imaging even when it is fitted into the vehicle so as to be close to the horizontal.
    Type: Application
    Filed: May 19, 2010
    Publication date: March 22, 2012
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Corinne Payen, Herve Thellier, Jean-Luc Lesage
  • Patent number: 8132428
    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: Grant
    Filed: August 25, 2008
    Date of Patent: March 13, 2012
    Assignee: Glasstech, Inc.
    Inventors: Michael J. Vild, David B. Nitschke, Dean M. Nitschke, James P. Schnabel, Jr.
  • Publication number: 20120055197
    Abstract: A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.
    Type: Application
    Filed: November 10, 2011
    Publication date: March 8, 2012
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Michael BALDUIN, Michael LABROT, Karl-Josef OLLFISCH, Herbert RADERMACHER, Guenther SCHALL
  • Patent number: 8109117
    Abstract: A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: February 7, 2012
    Assignee: Saint-Gobain Glass France
    Inventors: Michael Balduin, Michael Labrot, Karl-Josef Ollfisch, Herbert Radermacher, Guenther Schall
  • Publication number: 20120028015
    Abstract: Laminated, transparent set of panes made of brittle materials and interleaved laminated films, wherein the brittle materials are various glasses, special glasses, glass-ceramics, transparent ceramics and crystalline materials, process for producing and bending the set of panes and films, and its use thereof, as a bulletproof, unbreakable and shockproof glazing with a low weight per unit area.
    Type: Application
    Filed: July 20, 2011
    Publication date: February 2, 2012
    Inventors: Andreas Langsdorf, Markus Heiss, Doris Moseler, Axel Ohlinger, Volker Seibert, Otmar Becker, Bernd Ruedinger, Thilo Zachau
  • Publication number: 20110314871
    Abstract: The invention relates to a method for preparing a sheet of curved glass comprising an opening involving bending followed by cooling, the periphery of the sheet and the periphery of the opening being supported, at least at the start of cooling, by a skeleton.
    Type: Application
    Filed: March 4, 2010
    Publication date: December 29, 2011
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Thierry Olivier, Frederic Berthe, Michael Labrot
  • Patent number: 8083974
    Abstract: Molten glass (G) is set and press-molded in a molding die (60) having dies (621A1, 621A2) corresponding to a lens array. After the molding, the molded article is removed from the molding die (60) and separated by bending at a bend-separation face (121C), which is a boundary part of adjacent lens arrays, so that two lens arrays are produced.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: December 27, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Motoyuki Fujimori
  • Publication number: 20110302964
    Abstract: A method, press station (12), and system (10) for forming glass sheets that are initially formed with an upwardly concave curved shape with end portions (86) and an intermediate portion (88) having straight line elements that are subsequently formed with curved shapes to provide curvature along transverse directions. The forming is performed by initially providing curvature to the straight line elements of the glass sheet end portions while the intermediate portion (88) still has the straight line elements. The glass sheet intermediate portion is subsequently formed to provide curvature to its straight line elements so the glass sheet has curvature in transverse directions.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 15, 2011
    Applicant: GLASSTECH, INC.
    Inventors: David B. Nitschke, Dean M. Nitschke, Mace L. Odneal, Ashoka G. Jinka
  • Publication number: 20110277509
    Abstract: A method is provided for shaping a glass sheet in more than one dimension, and within the one or more dimensions forming non-uniform shapes between, for example, the leading edge and the trailing edge of the same glass sheet. Such shaping is achieved by the selective location, in first and second shaping zones, of shaping rolls having first and second shaping configurations and by varying the speed of the glass sheet as it moves through the shaping zones, thus varying the length of time that selected portions of the glass sheet are in contact with certain shaping rolls.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 17, 2011
    Inventors: Robert J. Boisselle, Efrain Serrano, John Tomik
  • Publication number: 20110265517
    Abstract: A method of making a 3D glass article includes forming at least one marker on an edge of a 2D glass piece. The 2D glass piece is thermally reformed into a 3D glass article, where the at least one marker formed on the edge of the 2D glass piece is carried over to an edge of the 3D glass article. The 3D glass article is aligned on a support using the at least one marker on the edge of the 3D glass article. Then, the edge of the 3D glass article is finished to a final shape and dimension.
    Type: Application
    Filed: April 26, 2011
    Publication date: November 3, 2011
    Inventors: Thomas A. Keebler, Robert Sabia, Ljerka Ukrainczyk
  • Publication number: 20110265515
    Abstract: The present invention is related a method and a system for bending glass sheets with complex curvatures comprising: heating at least a pre-selected area of at least a glass sheet using microwave energy and then superficially forming the sheet against a die.
    Type: Application
    Filed: December 18, 2009
    Publication date: November 3, 2011
    Inventors: Alberto Hernandez Delsol, Jesús Alberto Gonzalez Rodriguez, Miguel Arroyo Ortega
  • Patent number: 8033138
    Abstract: It is an object of the present invention to provide a method for bending a glass sheet which can appropriately prevent cloth mark due to suctioning.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: October 11, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Junji Hori, Taisei Mori, Masao Fukami, Yutaka Kitajima
  • Publication number: 20110223386
    Abstract: Provided is a glass roll (1), which is formed by winding a long glass film (2) into a roll, in which the long glass film (2) includes both end edges (2a) in a width direction larger in thickness relative to a center portion (2b) in the width direction, and the long glass film (2) is wound into a roll so that the both end edges (2a) overlap one another while interposing a protective sheet (10) therebetween. Specifically, the long glass film (2) is formed by a downdraw method with selvage portions (2a) left in the both end edges in the width direction, and the long glass film (2) is wound into a roll so that the selvage portions (2a) overlap one another.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 15, 2011
    Inventors: Masahiro TOMAMOTO, Toru SAKURABAYASHI, Michiharu ETA
  • Patent number: 7975509
    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: Grant
    Filed: June 27, 2007
    Date of Patent: July 12, 2011
    Assignee: Pilkington North America, Inc.
    Inventors: Robert J. Boisselle, Thomas G. Kleman, Daniel P. Lubelski
  • Patent number: 7963123
    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: October 15, 2009
    Date of Patent: June 21, 2011
    Assignee: Saint-Gobain Glass France
    Inventors: Jacques Leclercq, Gilles Garnier
  • Publication number: 20110135880
    Abstract: The invention relates to a glass substrate (10) having a main face that exhibits a texture in relief having a depth of at least 1 mm, characterized in that said main face (11) is provided with a thin-film stack (100) having reflection properties in the infrared and/or in solar radiation.
    Type: Application
    Filed: February 27, 2009
    Publication date: June 9, 2011
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Paul Roman, Rino Messere
  • Publication number: 20110129648
    Abstract: A glass sheet article includes a glass sheet having an upper surface and a lower surface. The upper surface terminates in a tapered upper end, and the lower surface terminates in a tapered lower edge. The taper profile of the tapered upper edge is different from the taper profile of the tapered lower edge. The tapered upper edge and the tapered lower edge intersect to form a double-tapered asymmetric edge.
    Type: Application
    Filed: October 13, 2010
    Publication date: June 2, 2011
    Inventor: Yabei Gu
  • Patent number: 7950252
    Abstract: The present invention relates to a method of manufacturing a formed article comprising forming an upper surface of a forming material comprised of a thermosoftening substance into a desired shape by positioning the forming material on a forming surface of a mold and heating the forming material to a temperature permitting deformation to bring an entire surface of a lower surface of the forming material into tight contact with the forming surface.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: May 31, 2011
    Assignee: Hoya Corporation
    Inventors: Mikio Chisha, Masaaki Matsushima, Noriaki Taguchi