During Conveying Patents (Class 65/118)
  • Patent number: 10626047
    Abstract: A process for forming coating on an interior surface of a glass container. A glass preform is formed at blank molding station from a gob of molten glass. Thereafter, a glass container is formed at a blow molding station from the glass preform. A coating material comprising a suspension of nanoparticles in a liquid medium is introduced into an interior of the glass preform or the glass container while the glass is still hot from being formed. Heat from the glass is transferred to the liquid medium to vaporize the liquid medium and form a coating on an interior surface of the glass preform or the glass container. Thereafter, the glass container is annealed.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: April 21, 2020
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: Zhongming Wang, Carol A. Click, Michael P. Remington, D Wayne Leidy
  • Patent number: 10501360
    Abstract: Provided is a glass ribbon manufacturing apparatus in which at least one of support rollers configured to support both sides of a glass ribbon (G) in a width direction in an annealing region and a cooling region is a shape stabilization roller configured to stabilize a shape of the glass ribbon (G) curved in the width direction. The shape stabilization roller includes a first roller (11) arranged on one surface side of the glass ribbon (G) and a second roller (12) arranged on another surface side of the glass ribbon (G). Inner end portions (11c) of rollers (11a) of the first roller (11) are all positioned on an outer side, in the width direction, of outer end portions (12c) of rollers (12a) of the corresponding second roller (12) in the width direction.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: December 10, 2019
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Koji Domori, Daiki Haraguchi
  • Patent number: 10343944
    Abstract: A method of modifying a substrate formed of non-deformable material is disclosed. In some embodiments, techniques are disclosed for identifying a region of a planar substrate that is susceptible to stretching during a subsequent shaping operation. In some embodiments, techniques are disclosed for adding an amount of non-deformable material to the planar substrate at an identified location and in a single operation, acting on the substrate until the substrate has a shape corresponding to a uniform thickness and a three-dimensional curvature.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: July 9, 2019
    Assignee: APPLE INC.
    Inventors: Christopher D. Jones, Dale N. Memering, Christopher D. Prest
  • Patent number: 9919944
    Abstract: A method and apparatus for manufacturing glass are provided. The apparatus is configured to draw a glass ribbon and includes an evaporator unit having a liquid reservoir configured to receive a working liquid. The apparatus further includes a heat transfer element configured to be placed in thermal contact with the working liquid received in the liquid reservoir. The heat transfer element is configured to cool the glass ribbon being drawn from the glass manufacturing apparatus by receiving radiant heat from the glass ribbon and transferring the heat to the working liquid received in the liquid reservoir, thereby transforming an amount of the working liquid to a vapor. The method includes drawing the glass ribbon, cooling the glass ribbon by radiating heat from the glass ribbon to the heat transfer element, and then transferring heat from the heat transfer element to the working liquid.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: March 20, 2018
    Assignee: Corning Incorporated
    Inventors: Eliot Geathers, Kashyap Harshadlal Shah, Yuriy Yurkovsky
  • Patent number: 9758871
    Abstract: A method of manufacturing an epitaxial wafer in which an epitaxial layer is grown over a main surface of a silicon wafer placed substantially horizontally on a susceptor is provided. The method comprises: a growing step of the epitaxial layer; and a cooling step of cooling the epitaxial wafer having the epitaxial layer. The cooling step comprises: a wafer measurement step of measuring a temperature of the epitaxial wafer; a susceptor measurement step of measuring a temperature of the susceptor; and a control step of controlling a heater capable of heating at least the susceptor or the epitaxial wafer such that difference between a temperature of the epitaxial wafer and a temperature of the susceptor is within a predetermined range.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: September 12, 2017
    Assignee: SUMCO TECHXIV CORPORATION
    Inventor: Kazuhiro Narahara
  • Patent number: 9199871
    Abstract: The present disclosure provides a continuous strengthening device comprising a bracket, at least a strengthening furnace located below the bracket and at least a pre-heating/annealing furnace movably located on the bracket. The strengthening furnace comprises a first furnace body having a first opening located on the top and a first movable furnace cover movably located on the top of the first furnace body for sealing the first opening. The pre-heating/annealing furnace comprises a second furnace body having a second opening located on the bottom and a second movable furnace cover movably located on the bottom of the second furnace body for sealing the second opening. In operation, while the pre-heating/annealing furnace moved onto the strengthening furnace, the first movable furnace cover and the second movable furnace cover both open, so that furnace bodies of the pre-heating/annealing furnace and the strengthening furnace are connected to form an airtight space.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: December 1, 2015
    Assignee: TPK Lens Solutions Inc.
    Inventors: Chung-Hao Fang, Zhuping Gao, Lingling Jiang
  • Patent number: 8857215
    Abstract: Disclosed is an apparatus and method for heat treating glass sheets, and in particular for heat treating very thing glass sheets arranged in closely spaced stacks. The glass sheets are positioned on a moving belt such that their major surfaces are substantially perpendicular to a direction of belt travel through the apparatus to aid in producing a uniform temperature profile within the glass sheets. The apparatus comprises air curtains positioned at the inlet and outlet of the apparatus to minimize the ingress of particulate into the apparatus. A reduced velocity of heated air flow within a lower portion of the apparatus relative to a velocity of the heated air in an upper portion of the apparatus causes particulate to drop out of the lower portion air flow. A rotating brush and vacuums positioned adjacent a lower portion of the belt assist in removing particulate from the moving belt.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: October 14, 2014
    Assignee: Corning Incorporated
    Inventors: George O. Dale, Juergen Tinz
  • Patent number: 8850852
    Abstract: A method for processing a coated glass substrate may include a high-temperature activation process.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: October 7, 2014
    Assignee: First Solar, Inc
    Inventors: Daniel Burgard, Joshua Conley, James Hinkle, Stephen Murphy, Thomas Truman
  • Patent number: 8769994
    Abstract: An annealing apparatus for a float glass continuously anneals a glass ribbon molded in a float bath. The annealing apparatus includes a lehr housing having an inlet and an outlet for the glass ribbon, a plurality of lehr rolls rotatably installed to the lehr housing in a width direction of the lehr housing, and labyrinth seals installed between the lehr rolls and sidewalls of the lehr housing, respectively, to prevent sulfurous acid gas supplied into the lehr housing from discharging out.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: July 8, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Woo-Hyun Kim, Sang-Oeb Na, Yang-Han Kim, Kil-Ho Kim, Heui-Joon Park, Jin Han, Dong-Shin Shin
  • Publication number: 20140033769
    Abstract: The present disclosure provides a continuous strengthening device comprising a bracket, at least a strengthening furnace located below the bracket and at least a pre-heating/annealing furnace movably located on the bracket. The strengthening furnace comprises a first furnace body having a first opening located on the top and a first movable furnace cover movably located on the top of the first furnace body for sealing the first opening. The pre-heating/annealing furnace comprises a second furnace body having a second opening located on the bottom and a second movable furnace cover movably located on the bottom of the second furnace body for sealing the second opening. In operation, whilst the pre-heating/annealing furnace moved onto the strengthening furnace, the first movable furnace cover and the second movable furnace cover both open, so that furnace bodies of the pre-heating/annealing furnace and the strengthening furnace are connected to form an airtight space.
    Type: Application
    Filed: May 23, 2013
    Publication date: February 6, 2014
    Applicant: TPK LENS SOLUTIONS (XIAMEN) INC.
    Inventors: Chung-Hao Fang, Zhuping Gao, Lingling Jiang
  • Patent number: 8618442
    Abstract: A nozzle housing assembly, which is used in a convection heating furnace for a heat treatable glass sheet. The nozzle housing assembly comprises an elongated enclosure, at least one elongated heating resistance in the enclosure for heating convection air, and orifices in a bottom surface of the enclosure for blasting heated convection air against the glass sheet. The enclosure is divided with a flow-throttling partition into a top supply duct and a bottom nozzle box, the heating resistances being housed in the latter. Flow-throttling openings present in the partition are positioned to comply with the location and shape of the heating resistances.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: December 31, 2013
    Assignee: Glaston Services Ltd. Oy
    Inventor: Mikko Rantala
  • Patent number: 8474285
    Abstract: In the process a glass tube line is drawn from a glass tube production plant and the glass tube is severed from the glass tube line. At the same time the still heated glass tube is subjected to a selective local heat treatment of the at least one tube end section prior to cooling down completely in order to reduce the stresses in the respective tube end section. Not the entire glass tube but instead only the respective tube end section is subjected to the selective local heat treatment. The heat treatment is performed in particular in such a manner that the mechanical tensile stress in the region between 7 mm and 20 mm from the tube end or ends is reduced to below 6.0 MPa, more preferably to below 4.5 MPa.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: July 2, 2013
    Assignee: Schott AG
    Inventors: Reiner Bartsch, Jens Ahrens, Markus Pappenberger, Roland Fuchs
  • Patent number: 8402786
    Abstract: A process for producing a synthetic silica glass optical component which contains at least 1×1017 molecules/cm3 and has an OH concentration of at most 200 ppm and substantially no reduction type defects, by treating a synthetic silica glass having a hydrogen molecule content of less than 1×1017 molecules/cm3 at a temperature of from 300 to 600° C. in a hydrogen gas-containing atmosphere at a pressure of from 2 to 30 atms.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: March 26, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Yoshiaki Ikuta, Shinya Kikugawa, Akio Masui, Noriaki Shimodaira, Shuhei Yoshizawa
  • Publication number: 20120000247
    Abstract: A method for processing a coated glass substrate may include a high-temperature activation process.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 5, 2012
    Inventors: Daniel Burgard, Joshua Conley, James Hinkle, Stephen Murphy, Thomas Truman
  • Patent number: 7685840
    Abstract: A method of minimizing distortion in a glass sheet manufacturing process wherein the stress in a parent sheet of glass is measured along each edge of the sheet. The stress data is then used to develop a distortion predictor for predicting the in-plane distortion which sub-sheets of the parent sheet are likely to exhibit when the parent sheet is cut into pre-determined sizes. The in-plane distortion may be predicted based on criteria established by the glass manufacturer, or supplied by an original equipment manufacturer (OEM).
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: March 30, 2010
    Assignee: Corning Incorporated
    Inventors: Roger Alphee Allaire, Darren Ryan Courtright, Clive Darrell Gierbolini, Dean Veral Neubauer, Casey Allen Volino
  • Patent number: 7383700
    Abstract: A system and a process for heat treatment of glass or other materials where fan air is blown into a heating chamber via propellant air fans and the chamber air is circulated. In order to achieve effective convection, the propellant air fans have cylindrical mixing sections. Additionally, resulting air swirls flow around the heating means which are located in the heating chamber.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: June 10, 2008
    Inventor: Wolfgang Erdmann
  • Publication number: 20080022721
    Abstract: This invention relates to a method of making glass. In certain example embodiments, a major surface(s) of the glass is treated with aluminum chloride (e.g., AlCl3) at or just prior to the annealing lehr. The aluminum chloride treatment at or just prior to the annealing lehr, in either a float or patterned line glass making process, is advantageous in that it allows the treatment to be performed at a desirable glass temperature and permits exhaust functions in or proximate the annealing lehr to remove byproducts of the treatment in an efficient manner.
    Type: Application
    Filed: July 25, 2006
    Publication date: January 31, 2008
    Inventors: Bernd Disteldorf, Anthony V. Longobardo, Keith McCrystal
  • Patent number: 7216511
    Abstract: A glass tempering furnace having a chamber, rollers extending laterally within a chamber to form a transport surface for the plate glass, radiant coils positioned along the bottom of the chamber underneath the rollers, a plurality of spaced nozzle assemblies arranged in lateral side-by-side fashion within the chamber above the rollers, and fans coupled to the nozzle assemblies to draw heated air from the chamber and force the heated air onto the top surface of the plate glass. Heating elements, preferably electrically heated rods, extend between each of the nozzle assemblies and are positioned within the return path of the heated air after it is flowed onto the plate glass surface. The air then rebounds from the glass plate prior to the air again being drawn up into the fan and blown back down onto the glass. Air is then again drawn from the furnace chamber and forced through ducting to a nozzle assembly.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: May 15, 2007
    Assignee: HHH Tempering Systems, Inc.
    Inventors: John Haws, Jay Rosen
  • Patent number: 7207193
    Abstract: A method of fabricating a glass sheet comprises modifying the thermal stress in the glass such that it is a tensile stress or substantially zero stress in a particular temperature zone of the glass, with that zone selected such that the glass sheet is formed substantially free of warping. In an example embodiment, the modifying of the thermal stress is effected by non-uniform cooling of the glass across the glass transition temperature range. This non-uniform cooling may be applied in cooling segments that are linear and at least two of the segments have differing slope.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: April 24, 2007
    Assignee: Corning Incorporated
    Inventors: May Xun, Gautam Meda
  • Patent number: 6901773
    Abstract: A semi-convective forced air system for heating glass sheets during a heating cycle comprises a heating chamber having a length and a width, at least one heating element located within the heating chamber, a conveyor having a length and a width, the conveyor extending lengthwise through the heating chamber, a compressed air source, a plurality of air manifolds positioned within the heating chamber and in fluid connection with the compressed air source, each of the air manifolds having a length, and each of the air manifolds being oriented parallel to the length of the conveyor, and a plurality of nozzles mounted on each air manifold and in fluid connection with the air manifold for mixing together and directing toward the conveyor a combination of compressed air and over air to convectively heat a sheet of glass on the conveyor, the plurality of nozzles on each air manifold being spaced along the length of the air manifold.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: June 7, 2005
    Assignee: Tamglass Ltd. OY
    Inventors: Ernie Thomas, Lawrence Betz
  • Patent number: 6826929
    Abstract: A system and method for heating, forming, and tempering a glass sheet includes pre-heating the glass sheet to at least a first predetermined temperature. The system and method includes also applying radio-frequency energy to the glass sheet to heat it to at least a second predetermined temperature and cooling at least one outer surface of the glass sheet to at least a third predetermined temperature to temper the glass sheet.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: December 7, 2004
    Inventor: Premakaran T. Boaz
  • Publication number: 20040221616
    Abstract: A continuous-treatment apparatus is provided which subjects a surface of an object, which is targeted for treatments, to continuous plural types of treatments, and is provided with an object carrier, which holds the object and carries the object along a carrying direction, and plural types of treatment units, which are arranged side by side along the carrying direction of the object and subject the object to sequential different treatments at atmospheric pressure or at a pressure near atmospheric pressure. The combination of the plural types of treatment units may be changed at will and any desired type of treatment unit may be added.
    Type: Application
    Filed: February 20, 2004
    Publication date: November 11, 2004
    Inventors: Shintaro Asuke, Yoshiaki Mori
  • Patent number: 6772610
    Abstract: Flat glass annealing lehr equipped with controlled heating and cooling means, includes pre-annealing, annealing, and post-annealing zones with heat exchange by radiation, the said zones being equipped respectively with groups of cooling-air heat exchangers situated above and/or beneath the glass ribbon. A single cooling-air intake manifold is included for groups of exchangers in the pre-annealing and annealing zones, which manifold is situated where the zones meet. A single cooling-air intake manifold for second groups of exchanges in the annealing and post-annealing zones, which manifold is situated where said zones meet.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: August 10, 2004
    Assignee: Stein Heurtey
    Inventors: Eric Albrand, Joël Pasquier, Daniel Sevin
  • Patent number: 6758064
    Abstract: When a glass substrate for a liquid crystal display is manufactured using the downdraw method. strain caused by differences in the tempsrature of the sheet glass achieved as a result of cooling are reduced. Furth rtore. minute strain that occurs when the sheet glass manufactured using the downdraw method is out into smaller pieces is inhibited. When the sheet glass 8 is manufactured using the downdraw method. a temperature distribution is formed in the widthwise direction of the sheet glass 8 by the heat treating unit 9 used in the slowly cooling process after molding. This temperature distribution is a distribution that can offset the temperature distribution in the sheet glass 8 caused by the fact that the thickness of the sheet glass 8 after molding is greater in the edge areas than that in the surface area.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: July 6, 2004
    Assignee: NH Techno Glass Corporation
    Inventor: Hiroyuki Kariya
  • Patent number: 6710306
    Abstract: The present invention relates to a process for ceramising glass ceramics (so-called green glass). The process according to the present invention comprises the following procedural steps: green glass (3) is manufactured; the green glass is placed in a suspended state on a levitation substrate by supply of levitation gas; the green glass is heated in the suspended state by IR radiation until such time as the desired ceramising has set in.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: March 23, 2004
    Assignee: Schott Glas
    Inventors: Gerhard Hahn, Andreas Langsdorf, Ulrich Fotheringham, Hauke Esemann, Bernd Hoppe, Sybill Nüttgens
  • 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
  • Patent number: 6651461
    Abstract: A conveyor belt including a series of predefined sections and elevated support structures at the edges of each section for supporting items on the belt above the belt at each section.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: November 25, 2003
    Assignee: 3M Innovative Properties Company
    Inventor: Paul J. Richter
  • Patent number: 6598427
    Abstract: A device for cooling bent glass sheets running along a roller conveyor. Blowing boxes are inserted between the rollers and have a surface opposite the glass sheet at a distance of less than 30 mm and preferably less than 10 mm. The surface is perforated with several holes through which air is discharged in the direction of the glass sheets.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: July 29, 2003
    Assignee: Saint-Gobain Glass France
    Inventors: Jean-Pierre Douche, Jean-Marc Petitcollin, Gilles Garnier
  • Patent number: 6490888
    Abstract: A method of heating low emissivity glass sheet for subsequent processing. The glass sheet is loaded onto a longitudinally extending conveyor and oriented such that the lengthwise edge of the sheet is parallel to the length of the conveyor and the direction of conveyance of the glass sheet. The sheet is conveyed into a heating chamber. The glass sheet is then convectively heated in a specified sequence along the entire length of the glass sheet at selected areas measured along the width by creating a downward flow of heated air proximate the selected areas.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: December 10, 2002
    Inventors: Kenneth Friedel, Cliff Matukonis
  • Publication number: 20020144991
    Abstract: Certain types of lithographic printing plates are activated by preheating while certain other types are post heated to harden the coating. A platen having a large mass compared to the mass of a printing plate is heated and maintained in the exact temperature range to which the printing plate is to be heated. A printing plate is brought into heat exchange contact with the platen for the period of time required to heat the printing plate to the temperature of the platen. The printing plate may be heated while resting in a fixed position on the platen or while the printing plate is carried over the platen by a continuous thin metal conveyor belt in intimate contact with both the platen and printing plate.
    Type: Application
    Filed: April 4, 2001
    Publication date: October 10, 2002
    Applicant: Howard A. Fromson
    Inventors: Howard A. Fromson, William J. Rozell, Paul C. Schunk, Russell R. Thomas
  • Patent number: 6279347
    Abstract: This invention provides a method and an apparatus for producing a bent glass sheet. A heated glass sheet (4, 24, 24*) conveyed from a heating furnace (1, 21) is bent by pressing with at least one belt (5, 9, 25) made of a heat-resistant material against a bending member (6, 10, 26, 28). The bent glass sheet is further conveyed and cooled for quenching or annealing in a cooling apparatus (3, 23). The bent glass is cooled after separating the belt. According to this invention, the bent glass sheets having surfaces on which defects, such as marks of rolls, are suppressed can be produced efficiently.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: August 28, 2001
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventor: Hideo Yoshizawa
  • Patent number: 6279349
    Abstract: A method for making a furnace for heating a glass sheet by lower electric resistance elements (50) supported by a furnace housing (12) below a roll conveyor (40) and by supplying a gas burner heated hot gas flow from a forced convection heater (56) that provides a dominant mode of external heat for heating the conveyed glass sheet from above. The furnace is manufactured by retrofitting an electric resistance heater type glass sheet furnace that initially has both lower and upper electric resistance elements (50) located below and above the roller conveyor (40). The lower electric resistance elements (50) are maintained while the upper electric resistance elements (50) are replaced with a gas burner forced convection heater (56).
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: August 28, 2001
    Assignee: Glasstech, Inc.
    Inventor: James P. Schnabel, Jr.
  • Patent number: 6236021
    Abstract: A rapid thermal processing system for large area substrates, such as glass panels for flat panel displays, includes a processing chamber having a loading/unloading zone and a processing zone, a heating assembly for heating a substrate in the processing zone, and a transport assembly for transporting the substrate through the processing chamber. The transport assembly includes a feed conveyor for transporting the substrate from the loading/unloading zone through the processing zone and a substrate return assembly for transporting the substrate from the feed conveyor to the loading/unloading zone after the substrate is transported through the processing zone. The substrate return assembly may include a return conveyor for transporting the substrate to the loading/unloading zone and a substrate reverser for transferring the substrate from the feed conveyor to the return conveyor.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: May 22, 2001
    Assignee: Intevac, Inc.
    Inventors: James E. Fair, Fritz B. Harris
  • Patent number: 6204483
    Abstract: A rapid thermal processing system for large area substrates, such as glass panels for flat panel displays, includes a processing chamber, a transport assembly for transporting a substrate through the processing chamber, and a heating assembly for heating the substrate. The heating assembly includes a bank of elongated heating elements disposed in the processing chamber. The heating elements have longitudinal axes aligned with the substrate transport direction. In one embodiment, heating elements on one side of the substrate have longitudinal axes aligned perpendicular to the substrate transport direction and heating elements on the opposite side of the substrate have longitudinal axes aligned parallel to the substrate transport direction.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: March 20, 2001
    Assignee: Intevac, Inc.
    Inventors: James E. Fair, Fritz B. Harris
  • Patent number: 6131411
    Abstract: A method and furnace for heating a glass sheet by lower electric resistance elements (50) supported by a furnace housing (12) below a roll conveyor (40) and by supplying a gas burner heated hot gas flow from a forced convection heater (56) that provides a dominant mode of external heat for heating the conveyed glass sheet from above. The furnace can also be manufactured by retrofitting an electric resistance heater type glass sheet furnace.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: October 17, 2000
    Assignee: Glasstech, Inc.
    Inventor: James P. Schnabel, Jr.
  • Patent number: 5974833
    Abstract: A heat transfer method in a glass bending furnace, which has a top array of of successive heating sections (2) and under it a bottom array of successive cooling sections (3), and in which method glass sheets are conveyed on bending molds in mold carrying wagons on the top conveyor track from one heating section (2) to the next and on the bottom conveyor track from one section (3) to the next and the air heated by the bent hot glasses is sucked from cooling section (3) and blasted to the non-bent colder glasses in the heating sections (2). In order to intensify heat transfer, air sucked from the cooling section (3) is blasted as such, against the travel direction of the mold carrying wagons through the heating sections (2) to non-bent colder glass sheets in one of the heating sections (2) preceding the heating section (2) directly above the cooling section (3) from which the heated air is drawn as viewed in a direction of travel of the mold carrying wagons through the heating sections (2).
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: November 2, 1999
    Assignee: Glassrobots OY
    Inventors: Kari Vaha-Antila, Juha Karisola
  • Patent number: 5974834
    Abstract: For a method for bending and tempering glass which has an opening, the glass is bent in the horizontal position using a bending frame (9) and is tempered on the bending frame (9). The bending frame in respect of its contour and of its geometric shape corresponds to the desired shape of the bent glass. During the bending operation and during the tempering operation the glass is supported, in the region around the edge of the opening, by an additional internal bending frame (12).
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: November 2, 1999
    Assignee: Saint-Gobain Vitrage
    Inventors: Ludwic Johan Rijkens, Hans Josef Thevissen, Franz Stiel, Juergen Schmitz, Alwin Timmermann
  • Patent number: 5951734
    Abstract: A semi-convective forced air system for heating glass sheets during a heating cycle. The system has a heating chamber, and a longitudinal conveyor extending lengthwise through the heating chamber. A plurality of longitidinally-extending air manifolds are located within the chamber and are in fluid connection with a compressed air source. The manifolds are arranged in at least one widthwise-extending column. Each of the manifolds are oriented parallel to the length of the conveyor and are constructed and arranged to create a downward flow of heated air toward the conveyor to convectively heat the entire length of selected widthwise portions of a sheet of glass on the conveyor. A controller supplies or restricts the flow of compressed air to selected manifolds within a column at predetermined times during the heating cycle.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: September 14, 1999
    Assignee: TGL Tempering Systems, Inc.
    Inventors: Kenneth Friedel, Cliff Matukonis
  • Patent number: 5948132
    Abstract: A glass sheet strip annealing method utilizes a housing (18) along which a conveyor (26) including a gas support (28) supports a glass sheet strip G by pressurized gas for movement between entry and exit ends (22,24) of the housing before a conveyor drive (32) engages the strip after the surfaces thereof are cooled below the strain point. Best results are achieved when the glass sheet strip is supported only by the gas support (28) until its surfaces are placed in compression. Lower and upper manifolds (34,36) respectively support and convey the glass sheet strip within the housing (18) preferably by a recirculating gas flow supplied by gas burner (76) and associated gas jet pumps (78).
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: September 7, 1999
    Assignee: Glasstech, Inc.
    Inventors: Robert E. Maltby, Jr., Harold A. McMaster, Philip J. Breno, James W. Buckingham, Michael J. Vild
  • Patent number: 5917104
    Abstract: A method for automatically detecting and adjusting the position of a plurality of burners with respect to the edge of a continuous glass sheet is provided. The glass sheet is transported by rolls along the length of a thermal treatment lehr. Detecting and adjusting sensors for sensing the edge of the glass sheet are attached conjointly with the burners in order to automatically adjust the position of the burners with regards to the edge of the glass sheet, so, for each variation in the width of the glass sheet, the detecting and adjusting sensors are advanced or retracted over the edge of the glass sheet, in order to adjust the burners in accordance with a new position of the edge of said glass sheet.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: June 29, 1999
    Assignee: Vidrio Plano de Mexico, S.A. de C.V.
    Inventors: Manuel Alarcon-Lopez, Lenin Roman-Gomez, Rafael Jorge Rojas-Cortes, Victor Enciso-Aguilar, Severino Islas-Sanchez, Jose Carlos Montes-Juarez
  • Patent number: 5888263
    Abstract: A mesh belt is stretched in an annealing lehr and a plurality of fine mesh elements, which constitute a fine mesh having gas-permeability and elasticity, formed by weaving a heat-resistant wire, are fixed onto the mesh belt so as to be arranged along the moving direction of the mesh belt with predetermined spaces in the direction of the width of the mesh belt whereby a flaw which may be produced in a glass product to be annealed when it is placed on the mesh belt in the annealing lehr, is prevented.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: March 30, 1999
    Assignee: Asahi Glass Company Ltd.
    Inventor: Michio Nakata
  • Patent number: 5882368
    Abstract: A method and an apparatus for coating a hot glass substrate with a mist of fine droplets from a solution of a chemical precursor or mixture of precursors in a solvent, by nebulizing a solution with ultrasonic vibration to form a mist of fine droplets; conducting the mist to the hot glass substrate; and depositing the mist on the hot glass substrate to pirolize it and form the desired coating on the glass substrate. The nebulization is carried out by applying vibration of ultrasonic frequency to the solution obtaining the mist of fine droplets and conducting the fine droplets by a stream of a carrier gas, to be deposited on a surface of the hot glass substrate, particularly on a continuous glass ribbon during production in the float glass manufacturing process mainly at the beginning of the annealing chamber where the temperature of glass ribbon is 580.degree. C.-610.degree. C.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: March 16, 1999
    Assignee: Vidrio Piiano De Mexico, S.A. DE C.V.
    Inventors: Ciro Falcony-Guajardo, Milan Jergel, Agustin Conde-Gallardo, Manuel Garcia-Hipolito, Herbert Scheffler-Hudlet, Rafael Avalos-Guzman
  • Patent number: 5858047
    Abstract: An apparatus for shaping heat softened glass sheets includes a shaping station to receive a heat softened glass sheet to be shaped, first and second transfer stations positioned along opposing sides of the shaping station, and first and second cooling stations positioned adjacent a corresponding transfer station. An upper vacuum mold having first and second downwardly facing, shaped sheet engaging surfaces moves between the transfer stations and within the shaping station. The sheet engaging surfaces of the vacuum mold each have a shaped configuration generally corresponding to a final desired shaped of a glass sheet to be shaped. Heat softened glass sheets are positioned within the shaping station and moved into engagement with one of the sheet engaging surfaces to shape the sheet. Vacuum is drawn along the sheet engaging surface to hold the shaped sheet thereagainst.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: January 12, 1999
    Assignee: PPG Industries, Inc.
    Inventors: Robert G. Frank, Mark A. Cancilla
  • Patent number: 5772717
    Abstract: A method of tempering an article is disclosed in which an article is heated so that the material making up the article is in an essentially stress-free state and the article thereafter is quenched and cooled. At the conclusion of the quenching, a stress pattern in initiated through the thickness of the article in which the midplane layer is in tension and the surface layers are in compression. This stress pattern is further developed during the cooling stage. The article is quenched by spraying the surfaces with a coolant, preferably comprising either liquid nitrogen or liquid air in the form of a two phase flow of liquid and vapor. The liquid is sprayed so that the surface tensile stress of the surface layers are not exceeded and the liquid does not accumulate on the surface layers as a film.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: June 30, 1998
    Assignee: The BOC Group, Inc.
    Inventors: Mark J. Kirschner, Hamdi Kozlu, Michael K. Sahm
  • Patent number: 5711778
    Abstract: A method and apparatus for annealing glass sheets, in which glass sheets are retained within a frame having edge retaining members. The edge retaining members retain the edges of the glass sheet during the annealing operation, thereby hindering warpage and surface damage of the glass sheet during the annealing process.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: January 27, 1998
    Assignee: Corning Incorporated
    Inventor: Keith L. House
  • Patent number: 5679123
    Abstract: When heating and bending glass sheets in a furnace, it is desirable to raise the sheets towards the furnace heat sources to increase obtainable temperature differentials and reduce heating power.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: October 21, 1997
    Assignees: Triplex Safety Glass Limited, Nippon Sheet Glass Co. Limited
    Inventors: Colin Michael Bennett, Masuhide Kajii, Kazuo Yamada
  • Patent number: 5641334
    Abstract: The invention relates to a method in a sequential bending furnace for bending glass sheets. According to the method, carriages are advanced in the furnace into a section downstream in the traveling direction of the carriages for a subsequent bending cycle essentially by using at least two transfer assemblies, providing a transfer mechanism and including first and second locking elements which are in a transfer-force transmitting relationship during the course of a transfer. This is followed by disengaging the locking elements and then transfer and locking rods included in the transfer assemblies are returned to a transfer commencing position in such a manner that at least one transfer assembly is in a locking position during transfers.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: June 24, 1997
    Assignee: Lamino Oy
    Inventors: Esko Kianta, Rauno Salonen
  • Patent number: 5565013
    Abstract: Tubular coverings for conveyor rollers for glass sheets heated to the softening point in a bending and/or heat treatment furnace, which have the special feature of having an outer surface, i.e. the surface that contacts the glass sheets, which is based on metal wires exhibit a reduced risk of marking the glass sheets and also exhibit a high temperature and wear resistance. Such tubular coverings are preferably used for covering the rollers present in the frontal and/or lateral positioning zones of the glass sheets on the conveyor.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: October 15, 1996
    Assignee: Saint-Gobain Vitrage International
    Inventors: Pascal Tinelli, Jean-Luc Lesage
  • Patent number: 5527371
    Abstract: The problem of unevenness of bottle temperatures at the entry of slow annealing furnace due to the variation of time periods necessary for respective bottles discharged from an IS bottle manufacturing machine to reach the annealing furnace has been solved by an equalization of the time periods. For this purpose, the bottle discharging order from the IS bottle manufacturing machine is controlled and use is made of two conveyors having different running speeds and/or direction of running. As a result, a precise temperature control in the Hot-End-Coating apparatus provided upstream from the annealing furnace can be carried out owing to the equalized temperatures of bottles entering into the annealing furnace.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: June 18, 1996
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventors: Manabu Nakagawa, Masatoshi Shibata
  • Patent number: 5391214
    Abstract: The problem of unevenness of bottle temperatures at the entry of slow annealing furnace due to the variation of time periods necessary for respective bottles discharged from an IS bottle manufacturing machine to reach the annealing furnace has been solved by an equalization of said time periods. For this purpose, the bottle discharging order from the IS bottle manufacturing machine is controlled and use is made of two conveyors having different running speeds and/or direction of running. As a result, a precise temperature control in the Hot-End-Coating apparatus provided upstream from the annealing furnace can be carried out owing to the equalized temperatures of bottles entering into the annealing furnace.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: February 21, 1995
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventors: Manabu Nakagawa, Masatoshi Shibata