Reshaping Of Planar Sheet Patents (Class 65/106)
  • Patent number: 7401477
    Abstract: A glass sheet, which has been heated to have a viscosity of not lower than 105 Pa·s and not higher than 108 Pa·s, is pressed against a mold having a certain bending surface to be bent. There are a step for controlling a bending temperature T and a bending time period t for the glass sheet so as to satisfy the following formulas 1 and 2, and a step for bending the glass sheet: 0.05<?<2.00Formula 1 ? = ? 0 t ? P ? ( ? ) ? ? ( T ) ? ? ? Formula ? ? 2 where P(?) is a surface pressure difference (unit: Pa) between a pressure applied on a primary surface of the glass sheet and a pressure applied on a rear surface of the glass sheet at a time ?, t is a bending time period (unit: s), ?(T) is the viscosity (unit: Pa·s) of the glass sheet at a temperature T, and T is a bending temperature (unit: ° C.) at the time ?.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: July 22, 2008
    Assignee: Asahi Glass Comapny, Limited
    Inventors: Nobuhiro Inoue, Ken Nomura
  • Patent number: 7401476
    Abstract: A heated and softened glass sheet is put on a bending surface of a frame unit to be preliminarily bent by gravity before the glass sheet is pressed by an upper mold and the frame unit. There are steps for using a certain means for controlling an amount of preliminary bending to control deformation of the glass sheet caused by the preliminary bending; and pressing the preliminarily bent glass sheet by the upper mold and the frame unit.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: July 22, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Masao Fukami, Shinya Oota, Tatsuo Yajima, Tomio Kajikawa, Mikinao Sasaki
  • Publication number: 20080134723
    Abstract: Method of bending sheets which consists of heating all of the sheets as they pass continuously into a kiln, up to a temperature close to the sheet-softening temperature, and applying localized heat on the pre-heated sheet in the zones that are to undergo the strongest curvature, said localized heating being performed with heating elements that are positioned opposite the zone with the strongest curvature. The progressive movement of the sheet is accompanied by the successive triggering of, or increase in the power delivered from one or more series of heating elements that are disposed opposite the zones of the sheets subjected to said additional heating operation.
    Type: Application
    Filed: March 9, 2006
    Publication date: June 12, 2008
    Applicant: AGC Flat Glass Europe
    Inventor: Kenji Maeda
  • Publication number: 20080134721
    Abstract: Glass sheets to be bent are conveyed continuously into a tunnel kiln in which the temperature is adjusted progressively to glass-softening temperature. At least one part of the kiln comprises distributed heating means opposite at least one part of the surface of the sheets, such as to provide a temperature distribution that is selected according to the desired curvature. The heating is distributed using heating elements that are positioned opposite the sheets and the power delivered by each element is selected in order to provide the desired temperature distribution, the movement of the sheet being accompanied by the successive synchronized operation of the heating elements that are disposed along the path thereof.
    Type: Application
    Filed: March 9, 2006
    Publication date: June 12, 2008
    Applicant: AGC Flat Glass Europe
    Inventor: Kenji Maeda
  • Publication number: 20080134722
    Abstract: The invention relates to a method and device for bending superposed sheets of glass, comprising the sheets being picked up by a top form furnished with suction means creating an upward airflow blowing over the rim of the sheets, said suction being sufficient to lift and hold the superposed sheets against said top form, then the pressing of the sheets between the top form and a full surface solid concave bottom form furnished with openings, said pressing beginning while the suction of the preceding step is not yet finished or is finishing, then the forming of the superposed sheets, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, said forming by suction beginning while the pressing is not yet finished, then the cooling of the sheets. Windshields free of optical defects may thus be produced.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 12, 2008
    Applicant: Saint-Gobain Glass France
    Inventors: Michael Balduin, Michael Labrot, Karl-Josef Ollfisch, Herbert Radermacher, Gunther Schall
  • Publication number: 20080120996
    Abstract: A method and a device for bending and cooling a glass pane or a bundle of glass panes, in which the glass panes heated to their bending temperature are bent in a horizontal position into a desired shape using a molding ring, and the bent glass panes placed on the molding ring are cooled in a cooling station by blowing cooling air using blowing plenums and then conveyed to a removal station. In the path between the bending station, the cooling station, the removal station, and its return to the bending station, the molding ring travels in an entirely closed path, particularly a circular path.
    Type: Application
    Filed: June 14, 2005
    Publication date: May 29, 2008
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventor: Herbert Radermacher
  • Publication number: 20080072624
    Abstract: A glass base material which has an area where its heat capacity is bilaterally symmetric with respect to a center axis in a drawing direction is heated so that its temperature becomes bilaterally symmetric with distances from heaters to the glass base material being individually adjusted. As a result, highly accurate drawn glass members without warpage can be continuously obtained.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobuyuki Nakagawa
  • Patent number: 7302813
    Abstract: In a method for bending, in pairs, panes placed one upon the other, heated to their softening temperature, the pair or panes is deposited on a bending frame and prebent under action of the force of gravity. The prebent pair of panes is transferred onto a suction bending mold with a concave forming face, the underside of the lowermost pane being supported at least on the peripheral edge of the forming face. By applying a depression for a predetermined length of time, the air is sucked out of the intermediate space between the underside of the lowermost pane and the suction bending mold, and the pair of panes is pressed by atmospheric pressure onto the concave forming face of the suction bending mold. After the end of the application of the depression, the finished molded pair of panes is transferred from the suction bending mold onto a transport device and is cooled.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: December 4, 2007
    Assignee: Saint-Gobain Glass France
    Inventors: Michaël Balduin, Michaël Labrot, Hubert Havenith
  • Patent number: 7299657
    Abstract: A method of forming a glass sheet includes obtaining a preform generated from a glass composition and conveying the preform through a channel having a temperature that decreases along a length of the channel to form a glass sheet having a predetermined width and thickness.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: November 27, 2007
    Assignee: Corning Incorporated
    Inventor: Jeffrey T. Kohli
  • Patent number: 7240519
    Abstract: An apparatus for shaping heat softened glass sheets includes an upper mold having a full surface press face with a shaping surface generally contoured to the desired curvature of the sheets; a support device to support the sheets below the upper mold; a shaping rail having an upper sheet supporting surface that supports selected peripheral portions of the sheets, the sheet supporting surface having a profile corresponding to desired elevational contours of the selected peripheral portions of the sheets and complimenting corresponding portions of the upper mold shaping surface; a chamber positioned below the sheets; a moving device for moving the upper mold and the shaping rail relative to each other so as to press at least a periphery of the sheets against the upper mold shaping surface, and a connector to direct pressurized gas into the chamber to urge the sheets towards the upper mold press face.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: July 10, 2007
    Assignee: PPG Industries Ohio, Inc.
    Inventors: James H. Schwartz, Mark M. Savka
  • Patent number: 7231787
    Abstract: An apparatus and method for bending and/or tempering glass substrate(s) are provided. The amount of near-IR radiation which reaches the glass to be bent and/or tempered is limited (e.g., via filtering or any other suitable technique). Thus, the IR radiation (used for heating the glass) which reaches the glass to be bent and/or tempered includes mostly mid-IR and/or far-IR radiation, and not much near-IR. In such a manner, coating(s) provided on the glass can be protected and kept at lower temperatures so as to be less likely to be damaged during the bending and/or tempering process. Heating efficiency can be improved.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: June 19, 2007
    Assignees: Guardian Industries Corp., Centre Luxembourgeois de Recherches pour le Verre et la Ceramique S.A. (C.R.V.C.)
    Inventors: George Neuman, Andre Heyen
  • Patent number: 7216510
    Abstract: A process for forming glass or glass ceramics is disclosed, wherein a glass ceramics form (12) is made from a starting glass by molding, which is transformed by a heat treatment into a keatite glass ceramic comprising predominantly keatite mixed crystals. With such a keatite glass ceramics form (12) formed bodies can be prepared from blank parts by sagging under gravity force at a temperature above the glass transition temperature of the blank part (14) (FIG. 1).
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: May 15, 2007
    Assignee: Schott AG
    Inventors: Thorsten Doehring, Ralf Jedamzik, Hauke Esemann, Eva Hoelzel
  • Patent number: 7162893
    Abstract: A glass sheet bending station (20) and method for glass sheet bending utilize 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.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: January 16, 2007
    Assignee: Glasstech, Inc.
    Inventors: Alfredo Serrano, Gilbert L. Reed, Thomas J. Zalesak, Paul D. Ducat
  • Patent number: 7155937
    Abstract: A method for bending a sheet of glass involving heating the sheet of glass to a softening temperature, transporting the sheet of glass in an essentially horizontal path as far as a station for bending the sheet of glass between two forms, shaping the sheet of glass by pressing between the two forms, and cooling the sheet of glass in an appropriate station. Shaped rollers receive the sheet of glass after it has been bent and the rollers are oriented parallel to the direction defined on the sheet of glass by the direction in which it is conveyed into the bending station.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: January 2, 2007
    Assignee: Saint-Gobain Glass France
    Inventors: Gilles Garnier, Thierry Olivier, Christophe Machura
  • Patent number: 7140204
    Abstract: An apparatus and method for bending glass substrate(s) are provided. Microwave radiation is used to heat glass substrate(s) for bending. As a result, a coating supported by the substrate(s) is not heated as much during the bending process compared to if only conventional IR radiation was used. Thus, more extreme degrees of glass bending may be achieved, and/or the likelihood of coating damage reduced.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: November 28, 2006
    Assignee: Guardian Industries Corp.
    Inventor: Robert A. Vandal
  • Patent number: 7122242
    Abstract: A glass sheet includes a first edge, an opposing, second edge, and an intermediate location between the first edge and second edge. The glass sheet has a first portion extending between the first edge and the intermediate location and a second portion extending between the intermediate portion and the second edge, wherein the first portion has a generally uniform thickness and the second portion has a varying thickness. The thickness of the second portion can either increase or decrease from the intermediate location to the second edge. A laminated transparency incorporating the glass sheet as well as a method of forming a glass ribbon having a changing thickness profile along at least a portion of the width of the ribbon are also disclosed.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: October 17, 2006
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Gerald DiGiampaolo, James A. Zahler, Jennifer M. Garefino
  • Patent number: 7086252
    Abstract: A glass sheet forming system (20) includes a roll bending station (28) having a lower roll conveyor (30) and an upper roll former (32) between which a heated glass sheet is progressively formed with a curved shape by lower and upper rolls (50) and (52) supported on lower and upper elongated beams (46) and (48) that extend along the direction of conveyance.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: August 8, 2006
    Assignee: Glasstech, Inc.
    Inventor: Ronald A. McMaster
  • Patent number: 7079918
    Abstract: A system for adjusting position of glass plates includes (1) a chain for conveying glass plates into a bending furnace, the chain having (a) alternate links, (b) connecting pins for holding the alternate links together, (c) extension pins extending from some of the connecting pins toward the corresponding glass plates; (2) supporting members fixed to the extension pins, for supporting the glass plates and for guiding the glass plates into the bending furnace; (3) a first image sensor unit for imaging actual positions of the extension pins; (4) a processor for computing a difference between the actual position of each extension pin and a reference position of each extension pin; and (5) a display device for displaying a command to adjust position of each extension pin, based on the difference, to make each extension pin take the reference position, thereby adjusting position of the glass plates.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: July 18, 2006
    Assignee: Central Glass Company, Limited
    Inventors: Tomoki Matsuba, Yukiyasu Ozaki
  • Patent number: 6990835
    Abstract: In the process for partially shaping, a glass/glass ceramic article (5) is held on a planar support plate (1) by suction. The glass/glass ceramic article is heated to soften it, so that it has a viscosity below 106 dPa·s. After the softening one or more shaping dies (4) is or are moved upward through an opening or respective openings (3) in the support plate to form raised regions in the softened glass/glass ceramic article (5). The suction force is produced by a low pressure in a hollow compartment (2) below the support plate (1) and acts on the glass/glass ceramic article (5) by means of a gap (G) formed between each shaping die (4) and the support plate. Additional openings can be provided in the support plate and/or in one or more of the shaping dies to assist in applying the suction force to the glass/glass ceramic article. After solidification of the softened glass/glass-ceramic article the shaping die or dies (4) is or are withdrawn.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: January 31, 2006
    Assignee: Schott AG
    Inventors: Friedrich-Georg Schroeder, Roland Hochhaus, Bernd Weitzel, Bernd Hoppe, Hermann Lemm, Gerhard Hahn, Hans-Walter Abraham
  • Patent number: 6972065
    Abstract: A method of producing a dielectric multilayer mirror coating is characterized with a view to increasing the coefficient of reflection by the following steps: to begin with, at least two dielectric layers of predetermined initial thicknesses are produced. Subsequently, the layers are arranged one above the other for forming a layered stack. Finally, the thickness of the stack of layers and thus the thicknesses of the individual layers are reduced by deforming the layered stack while maintaining the thickness ratio or ratios of the layers relative to one another.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: December 6, 2005
    Assignee: IP2H AG
    Inventor: Jörg Arnold
  • Patent number: 6905990
    Abstract: The present invention provides a ceramic color composition which comprises, as a solid powder, 50 to 90 wt. % of a mixture containing 5 to 95 parts by weight of a first lead-free glass powder comprising at least SiO2, ZnO, and B2O3 as glass components, and 5 to 95 parts by weight of a second lead-free glass powder comprising at least SiO2, Bi2O3, and B2O3 as glass components, 10 to 40 wt. % of an inorganic pigment, and 0 to 10 wt. % of an inorganic filler. The composition is free of lead and exhibits an excellent mold release property during the heat-molding process of a glass plate having the composition printed thereon. After firing, the composition is excellent in acid resistance, coloration in the bus bar portion, and plating resistance.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: June 14, 2005
    Assignee: Okuno Chemical Industries Co., Ltd.
    Inventors: Shigehiro Sanichi, Yoshito Nokami
  • Patent number: 6904771
    Abstract: A glass forming assembly and method for forming complex shaped glass, with the glass forming assembly having a hood assembly including a hood lift superstructure movable horizontally back and forth over a cold ring and a cooling shuttle and movable vertically relative to the cold ring and the cooling shuttle, and a hood frame supported by the hood lift superstructure by a hood tilt mechanism. The hood tilt mechanism includes an air cylinder assembly actuable to tilt the hood frame relative to the hood lift superstructure, which allows for proper orientation of the glass prior to dropping it on the cooling shuttle, thus allowing for reduced glass chipping and cracking.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: June 14, 2005
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Frank E. Moulding, Larry J. Scott, Jr., Robert Croft, Ronald Vandergrift
  • Patent number: 6813904
    Abstract: A process for fabricating a faceplate for a flat-panel display such as a field emission cathode type display is disclosed, the faceplate having integral spacer support structures. Also disclosed is a product made by the aforesaid process.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: November 9, 2004
    Assignee: Micron Technology, Inc.
    Inventor: Jason B. Elledge
  • Publication number: 20040211219
    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: Application
    Filed: May 25, 2004
    Publication date: October 28, 2004
    Applicant: BANDO KIKO CO., LTD.
    Inventor: Shigeru Bando
  • Patent number: 6799438
    Abstract: A microstructure is formed in a viscous glass or plastic substrate by pressing a structured surface of a forming tool corresponding to a negative of the microstructure to be produced in the viscous glass or plastic substrate. After the microstructure has been formed, the forming tool is removed from the surface. In order to help form the microstructure and remove the forming tool from the substrate the forming tool has an at least partially porous base body (1) and an operative layer (2) structured with a negative structure consisting of grooves (11) extending to the porous base body (1). The forming of the microstructure in the substrate is assisted by applying suction to the porous base body (1) so that the grooves (11) fill more easily and completely with melted glass or plastic material. The removal of the forming tool after forming the microstructure is assisted by applying an overpressure to the porous body to help release the solidified glass or plastic material from the forming tool.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: October 5, 2004
    Assignee: Schott Glas
    Inventors: Lars Christian Herzbach, Steffen Thiel, Stefan Postrach
  • Publication number: 20040142175
    Abstract: An explosion-proof tempered-glass wash basin is manufactured by the following steps. At first, a flat glass is made as a wash-basin has a predetermined shape. For example, a wash-basin having a round shape is used as an example. Secondary, the tempered glass is strengthened. Thirdly, a bottom of the tempered glass is adhered with a layer of explosion-proof film. Thus an explosion-proof tempered-glass wash basin is formed.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 22, 2004
    Inventor: Lin Chao Shui
  • Publication number: 20040129028
    Abstract: In a method for bending, in pairs, panes placed one upon the other, heated to their softening temperature:
    Type: Application
    Filed: January 20, 2004
    Publication date: July 8, 2004
    Inventors: Mich?auml;el Balduin, Mich?auml;el Labrot, Hubert Havenith
  • Publication number: 20040107729
    Abstract: A heated and softened glass sheet is put on a bending surface of a frame unit to be preliminarily bent by gravity before the glass sheet is pressed by an upper mold and the frame unit. There are steps for using a certain means for controlling an amount of preliminary bending to control deformation of the glass sheet caused by the preliminary bending; and pressing the preliminarily bent glass sheet by the upper mold and the frame unit.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 10, 2004
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Masao Fukami, Shinya Oota, Tatsuo Yajima, Tomio Kajikawa, Mikinao Sasaki
  • Publication number: 20040079112
    Abstract: A glass sheet, which has been heated to have a viscosity of not lower than 105 Pa·s and not higher than 108 Pa·s, is pressed against a mold having a certain bending surface to be bent.
    Type: Application
    Filed: October 1, 2003
    Publication date: April 29, 2004
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Nobuhiro Inoue, Ken Nomura
  • Patent number: 6725689
    Abstract: An apparatus for bend-shaping a glass sheet is disclosed, which comprises a heating furnace, a plurality of in-furnace beds disposed within the heating furnace, at least one out-furnace bed disposed externally of the heating furnace proximately to an outlet of the heating furnace, and an elevating mechanism disposed below that one of the in-furnace beds which is positioned proximately to the outlet and the out-furnace bed. The in- and out-furnace beds have upper surfaces curved transversely and capable of jetting air to floatingly support a glass sheet. For producing a dual curved glass sheet, the elevating mechanism is operated to elevate opposed ends of the one in-furnace bed and the out-furnace bed so that these beds jointly form a hill. For producing a single-curved glass sheet, the elevating mechanism is operated to lower the opposed ends of those beds to their original flat positions.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: April 27, 2004
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Seiichiro Honjo, Takeshi Yabuno, Yasuyuki Nagai
  • Patent number: 6718798
    Abstract: Apparatus (26) and a method for forming heated glass sheets in a heated chamber (22) of a housing (20) includes an upper mold support assembly (28) for supporting an upper mold (38) within the heated chamber for cyclical vertical movement between upper and lower positions. A lower mold shuttle (50) supports a lower mold (36) for movement between an idle position horizontally spaced from the upper mold and a use position below the lower mold. The apparatus also includes a lower mold support assembly (60) to which the lower mold is transferred from the lower mold shuttle (50) to provide support thereof while permitting horizontal alignment with the upper mold upon each cycle of downward movement to form a heated glass sheet between the molds. The lower mold shuttle (50) is supported by vertically movable rollers (70) to provide the transfer between the lower mold shuttle and the lower mold support assembly (60).
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: April 13, 2004
    Assignee: Glasstech, Inc.
    Inventors: David B. Nitschke, Eustace Harold Mumford, Dean M. Nitschke
  • Patent number: 6698243
    Abstract: A heated glass sheet is bent by pressing together with at least one belt made of a heat-resistant material against a bending member. The glass sheet is bent as the glass sheet is conveyed with the belt along the bending member, and the bending member is curved at least in a direction that is vertical to a conveying direction of the glass sheet. According to this invention, the bent glass sheets having surfaces on which defects such as mark of rollers are reduced can be produced efficiently.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: March 2, 2004
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventor: Hideo Yoshizawa
  • Publication number: 20040020244
    Abstract: The invention involves providing a plane sheet of glass with recesses by bringing an initially plane sheet of glass, heated to a temperature sufficient for transformation and in partial areas in contact on one side with a negative mould, into engagement on one side with at least one mould cavity of the negative mould whose dimensions correspond to the desired sheet deformation by means of a pressure differential acting upon the sheet, generated by applying a low pressure or partial vacuum and/or gaseous pressure media, such that the respective deformed area/recess of the sheet is surrounded by non-deformed partial areas of the sheet.
    Type: Application
    Filed: July 2, 2001
    Publication date: February 5, 2004
    Inventors: Carl Kramer, Thomas Kramer
  • Publication number: 20040016263
    Abstract: A glass forming assembly and method for forming complex shaped glass, with the glass forming assembly having a hood assembly including a hood lift superstructure movable horizontally back and forth over a cold ring and a cooling shuttle and movable vertically relative to the cold ring and the cooling shuttle, and a hood frame supported by the hood lift superstructure by a hood tilt mechanism. The hood tilt mechanism includes an air cylinder assembly actuable to tilt the hood frame relative to the hood lift superstructure, which allows for proper orientation of the glass prior to dropping it on the cooling shuttle, thus allowing for reduced glass chipping and cracking.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 29, 2004
    Inventors: Frank E. Moulding, Larry J. Scott, Robert Croft, Ronald Vandergrift
  • Publication number: 20040007019
    Abstract: A method of forming a glass sheet includes obtaining a preform generated from a glass composition and conveying the preform through a channel having a temperature that decreases along a length of the channel to form a glass sheet having a predetermined width and thickness.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 15, 2004
    Inventor: Jeffrey T. Kohli
  • Publication number: 20040007020
    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: Application
    Filed: June 23, 2003
    Publication date: January 15, 2004
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryou Kanno, Toshimitsu Sato, Takashi Hirotsu, Tomohiro Suwa, Isao Saito
  • Publication number: 20040000168
    Abstract: An apparatus and method for bending glass substrate(s) are provided. Microwave radiation is used to heat glass substrate(s) for bending. As a result, a coating supported by the substrate(s) is not heated as much during the bending process compared to if only conventional IR radiation was used. Thus, more extreme degrees of glass bending may be achieved, and/or the likelihood of coating damage reduced.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 1, 2004
    Inventor: Robert A. Vandal
  • Patent number: 6668589
    Abstract: A suction mold has a central suction chamber having a flat shaping surface area and a pair of opposite side suction chambers disposed one on each side of the central suction chamber and having respective curved shaping surface areas. First, a vacuum is developed in the central suction chamber to attract a central area of the sheet of glass against the flat shaping surface area thereof, and then a vacuum is developed in the opposite side suction chambers to attract opposite side areas of the sheet of glass respectively against the curved shaping surface areas.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: December 30, 2003
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Tetsuya Mizusugi, Kazunori Yuki, Mitsuo Tanaka
  • Publication number: 20030205061
    Abstract: A process for fabricating a face plate for a flat panel display such as a field emission cathode type display is disclosed, the face plate having integral spacer support structures. Also disclosed is a product made by the aforesaid process.
    Type: Application
    Filed: May 19, 2003
    Publication date: November 6, 2003
    Inventor: Jason B. Elledge
  • Patent number: 6631627
    Abstract: A process for fabricating a face plate for a flat-panel display such as a field emission cathode type display is disclosed, the face plate having integral spacer support structures. Also disclosed is a product made by the aforesaid process.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: October 14, 2003
    Assignee: Micron Technology, Inc.
    Inventor: Jason B. Elledge
  • Publication number: 20030182969
    Abstract: A conveyor system includes a transfer section conveyor arrangement for quickly transporting glass sheets from a furnace conveyor to a glass processing apparatus and accurately positioning the glass sheet for further processing. The conveyor system includes specially designed locator pads, which are designed to engage the glass sheet, upon the glass sheet exiting the furnace. The locator pads are designed to engage and properly align the glass sheet for the bending process. The pads are driven by a gearing apparatus, which allows conveyance in two substantially perpendicular directions of motion so that the glass sheet can be properly aligned in the press bending molds.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 2, 2003
    Inventor: Thomas A. Dunifon
  • Publication number: 20030154745
    Abstract: The subject of the invention is a method for bending a sheet of glass involving heating the sheet of glass to a softening temperature, transporting the sheet of glass in an essentially horizontal path as far as a station for bending it between two forms, shaping the sheet of glass by pressing between the two forms, cooling the sheet of glass in an appropriate station, these means comprising shaped rollers receive the sheet of glass after it has been bent and said rollers being oriented parallel to the direction defined on the sheet of glass via the direction in which it is conveyed into the bending station.
    Type: Application
    Filed: April 25, 2003
    Publication date: August 21, 2003
    Inventors: Gilles Garnier, Thierry Olivier, Christophe Machura
  • Patent number: 6592703
    Abstract: A method and an apparatus for cutting a laminate made of a brittle material and a plastic with a cutting tool is described. The plastic is heated up, thereby lowering its viscosity, at least in the region of a predetermined cutting line. A cutting tool is placed onto the plastic side of the laminate, the loading pressure being adjustable. By moving cutting tool relative to the laminate along the predetermined cutting line, the plastic is severed; at the same time the brittle material is scored, thereby inducing a mechanical stress. If appropriate, the mechanical stress along the cutting line is subsequently increased to exceed the rupture strength of the scored brittle material. A preferred application is the cutting of thin glass or glass-ceramic/plastic laminates.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: July 15, 2003
    Assignee: Schott Glas
    Inventors: Andreas Habeck, Roland Buerkle, Torsten Otto, Oliver Scherer
  • Patent number: 6588477
    Abstract: The apparatus for cutting a laminate, which is made of a brittle material and a plastic, has a cutting tool for severing the plastic along a predetermined cutting line and simultaneously scoring the brittle material; a heating device for heating the plastic along the cutting line; a device for pressing the cutting tool with an adjustable pressure on the laminate; a device for moving the engaged cutting tool along the cutting line to simultaneously sever the plastic and score the brittle material and a controller for controlling the heating device so that during the severing and scoring a temperature of the cutting tool is maintained constant and the heating is sufficient to lower viscosity of the plastic along the cutting line so that a predetermined loading pressure of the cutting tool on the laminate necessary for simultaneously scoring the brittle material and severing the plastic is not exceeded, whereby uncontrollable fracture of the brittle material does not occur.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: July 8, 2003
    Assignee: Schott Glas
    Inventors: Andreas Habeck, Roland Buerkle, Torsten Otto, Oliver Scherer
  • Publication number: 20030119647
    Abstract: The present invention provides a ceramic color composition which comprises, as a solid powder, 50 to 90 wt. % of a mixture containing 5 to 95 parts by weight of a first lead-free glass powder comprising at least SiO2, ZnO, and B2O3 as glass components, and 5 to 95 parts by weight of a second lead-free glass powder comprising at least SiO2, Bi2O3, and B2O3 as glass components, 10 to 40 wt. % of an inorganic pigment, and 0 to 10 wt. %0 of an inorganic filler.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 26, 2003
    Inventors: Shigehiro Sanichi, Nokami Yoshito
  • Publication number: 20030115907
    Abstract: A method for forming a plurality of optical elements simultaneously includes placing a transfer material against an inner surface of a master die, which has a shape commensurate with a desired shape of a plurality of optical elements to form a molding die, which thereby has an inner surface substantially a negative of the master die's inner surface. A moldable sheet, such as glass, is pressed against the molding die to form a unitary molded sheet, and the molded sheet is cut apart to form a plurality of optical elements, including lenses or other optical elements as desired.
    Type: Application
    Filed: September 7, 2001
    Publication date: June 26, 2003
    Inventors: Edward K. Patton, Layne Howell, Jean-Luc Nogues
  • Patent number: 6578383
    Abstract: Apparatus (16) and a method for roll bending heated glass sheets includes a pair of sets of bending rolls (40) and a support and drive mechanisms (44) that supports and rotatively drives the bending rolls at progressively increasing inclinations within a heating chamber (32) of a roll bending station (18) to provide engagement and bending at opposite lateral sides of a conveyed glass sheet. The bending rolls (44) are positioned in their progressively inclined inclinations by cooperation of an elongated connector (60) and clamps (64) for providing securement to curved support ribs (48) of an associated frame at the adjacent lateral side of the roll bending station housing.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: June 17, 2003
    Assignee: Glasstech, Inc.
    Inventors: Terry A. Bennett, Paul D. Ducat, Robert W. Brown
  • Publication number: 20030106341
    Abstract: A glass plate 2 is supported on a heat-resistant fiber sheet 3 stretched on a support base 1A of a carriage 1 without using a ring-shaped holding tool. The glass plate 2 transported on the carriage 1 into a furnace undergoes press working together with the heat-resistant fiber sheet utilizing a press-working mold in the furnace. The glass plate 2 can be bent evenly without leaving any traces on the worked surface of the glass plate.
    Type: Application
    Filed: November 20, 2002
    Publication date: June 12, 2003
    Applicant: MURAKAMI CORPORATION
    Inventors: Takehisa Hanada, Sunao Okuda
  • Publication number: 20030106340
    Abstract: Apparatus (26) and a method for forming heated glass sheets in a heated chamber (22) of a housing (20) includes an upper mold support assembly (28) for supporting an upper mold (38) within the heated chamber for cyclical vertical movement between upper and lower positions. A lower mold shuttle (50) supports a lower mold (36) for movement between an idle position horizontally spaced from the upper mold and a use position below the lower mold. The apparatus also includes a lower mold support assembly (60) to which the lower mold is transferred from the lower mold shuttle (50) to provide support thereof while permitting horizontal alignment with the upper mold upon each cycle of downward movement to form a heated glass sheet between the molds. The lower mold shuttle (50) is supported by vertically movable rollers (70) to provide the transfer between the lower mold shuttle and the lower mold support assembly (60).
    Type: Application
    Filed: January 21, 2003
    Publication date: June 12, 2003
    Applicant: Glasstech, Inc.
    Inventors: David B. Nitschke, Eustace Harold Mumford, Dean M. Nitschke
  • Patent number: 6564586
    Abstract: A process for fabricating a face plate for a flat panel display such as a field emission cathode type display is disclosed, the face plate having integral spacer support structures. Also disclosed is a product made by the aforesaid process.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: May 20, 2003
    Assignee: Micron Technology, Inc.
    Inventor: Jason B. Elledge