Patents Examined by Queenie Dehghan
  • Patent number: 9650279
    Abstract: A device for bending panes is described. The device has a pre-bending ring, a movable bending ring holder, a final bending ring, a preheating region for preheating at least one pane, a pre-bending region for a further bending of the at least one pane, a heating region for a final bending of an edge of the at least one pane and for a surface pre-bending of the at least one pane, a second bending region for a further surface bending of the at least one pane and a cooling region.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 16, 2017
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Michael Balduin, Benno Dunkmann, Jean-Marie Le Ny, Lothar Schmidt, Herbert Radermacher
  • Patent number: 9643873
    Abstract: A method keeps the width of the manufactured sheet substantially the same by attaching edge directors for the formed sheet to the manufacturing apparatus structure instead of to the forming block. Thus, sheet glass may be manufactured to specification for a longer time with the same forming block. An additional method adjusts the width of the manufactured sheet by changing the distance between the edge directors. Thus sheet glass may be manufactured to different width specifications with the same forming block.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 9, 2017
    Assignee: Corning Incorporated
    Inventor: Richard Bruce Pitbladdo
  • Patent number: 9643872
    Abstract: A roll forming apparatus includes at least one forming roll being spaced from a forming body to define a gap. The forming roll includes a working zone portion having a working zone surface with a length extending along a rotation axis of the forming roll and a thermal resistance boundary extending at an acute angle relative to the rotation axis. In further examples, methods include the step of feeding a stream of molten glass through the gap to form a glass ribbon including a formed thickness. The thermal resistance boundary facilitates substantial uniform radial expansion of the working zone surface relative to the rotation axis across the length of the working zone surface in response to heating of the working zone portion by the molten glass.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: May 9, 2017
    Assignee: Corning Incorporated
    Inventor: Allan Mark Fredholm
  • Patent number: 9612038
    Abstract: A method for manufacturing an all-glass solar heat collecting tube without a tail pipe. The bottom of one end of an inner glass tube plated by a selective absorbing coating layer is rounded, the other end is connected to a first glass outer tube. The bottom of one end of a second glass outer tube is rounded and the other end is flared. The connected inner glass tube/first glass outer tube is inserted into the second glass outer tube. A gap is formed between the first glass outer tube and the second glass outer tube to serve as an air exhausting channel. The first glass outer tube is inserted into the flared opening of the second glass outer tube. The contact point between the first glass outer tube and the second glass outer tube is heated to frit seal and butt joint.
    Type: Grant
    Filed: May 27, 2013
    Date of Patent: April 4, 2017
    Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY ACADEMY OF SCIENCES
    Inventors: Jifu Shi, Gang Xu, Leilei Wang, Hualin Huang, Naisheng Hou
  • Patent number: 9611166
    Abstract: A glass quench apparatus according to the present disclosure includes lower and upper quench heads configured to supply upward and downward gas flows to a heated glass sheet, and each quench head has multiple quench fins for distributing gas. For each quench head, adjacent quench fins are spaced apart center to center by a distance in the range of 0.87 to 1.15 inches, and each quench fin has multiple outlet openings that each have a diameter in the range of 0.25 to 0.36 inches. Furthermore, for each quench fin, the outlet openings are configured to provide spaced apart impingement points on the glass sheet such that adjacent impingement points are spaced apart by a distance in the range of 0.82 to 1.15 inches.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: April 4, 2017
    Assignee: GLASSTECH, INC.
    Inventor: Troy R. Lewandowski
  • Patent number: 9604872
    Abstract: [Problem] The transmittance of glass can be dramatically improved as a result of this glass production method. In addition, the amount of rare metal, such as platinum, that melts into glass can be greatly reduced. [Solution] A glass production method whereby the water content in molten glass is increased, in a melting step (i) in which a glass raw material including at least one type of component among TiO2, Nb2O5, WO3, and Bi2O3 is heated inside a melting container and melted, and a molten glass is obtained.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: March 28, 2017
    Assignee: HOYA CORPORATION
    Inventors: Shuhei Mikami, Yasuhiro Fujiwara
  • Patent number: 9598302
    Abstract: The present disclosure discloses a float bath that may enhance spreadability of a poured glass melt when pouring the glass melt, an apparatus for manufacturing a float glass comprising the same, a method for manufacturing a float glass using the float bath, and a float glass produced by the method. The float bath according to the present disclosure receives a metal melt and allows a glass melt poured onto the metal melt to float and move from upstream to downstream, and includes a guiding unit provided at a part where the glass melt is poured, to come into contact with the side of the poured glass melt to guide a sidewise spreading path of the glass melt to expand sidewise spreading of the glass melt.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: March 21, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Kyoung-Hoon Min, Ye-Hoon Im, Su-Chan Park
  • Patent number: 9598300
    Abstract: In a glass product forming machine having molds 1A and 1B each composed of a pair of split molds 11 and 12, and a mold cooling device X for cooling the molds 1A and 1B to control the temperatures thereof, in order to prevent the occurrence of a defect such as deformation or cracks in a formed article due to a temperature difference between the split molds 11 and 12, the mold cooling device X is configured to include: cooling mechanisms 3R and 3L provided to the respective split molds, the cooling mechanisms each individually applying cooling air to each of the split molds 11 and 12 of the molds 1A and 1B; valve mechanisms 30R and 30L for individually opening and closing each of paths for introducing cooling air to the respective cooling mechanisms 3R and 3L; temperature detection means for detecting the temperature of at least one of the split molds; and a temperature control device 9 for generating and outputting control signals for controlling the opening and closing operations of the respective valve mecha
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: March 21, 2017
    Assignee: NIHON YAMAMURA GLASS CO., LTD.
    Inventors: Takahiro Nishimura, Masaki Kataoka, Shintaro Ohno, Takahiro Kotoh
  • Patent number: 9598301
    Abstract: A method of cooling a glass ribbon formed using a fusion draw process. The method includes forming a glass ribbon using the fusion draw process. The glass ribbon, once formed, passes vertically through a glass transition temperature region. The glass ribbon is directed through a protective plenum at least partially located in a bottom of the draw region. A gas is directed into the protective plenum and vertically along a broad surface of the glass ribbon. The gas is directed out of the protective plenum through at least one outlet slot formed through a sidewall of the protective plenum at no less than about 100 Nm3/h.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: March 21, 2017
    Assignee: Corning Incorporated
    Inventor: Olivier Fournel
  • Patent number: 9593037
    Abstract: A method for carrying out a plasma deposition process including the steps of providing a substrate tube, supplying dopant-containing glass-forming gases to the substrate including a main gas flow and one or more secondary gas flows, inducing a plasma in the substrate tube, moving a reaction zone back and forth in strokes between a reversal point near the supply side and a reversal point near the discharge side, and interrupting the secondary gas flow during a portion of each stroke, each interruption having a start point and an end point within the same stroke.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: March 14, 2017
    Assignee: Draka Comteq B.V.
    Inventors: Igor Milicevic, Mattheus Jacobus Nicolaas Van Stralen, Johannes Antoon Hartsuiker, Gertjan Krabshuis
  • Patent number: 9587825
    Abstract: A submerged burner for a glass- or rock-melting furnace, including a plurality of in-line injectors, each injector including a cylinder-shaped mixing chamber, with an ejection orifice, a fuel-supply duct and an oxidant-supply duct opening into the mixing chamber at the cylinder jacket in a direction causing a tangential flow of the fuel and of the oxidant relative to the cylinder jacket, and a duct system making it possible for a coolant to flow inside the burner, and, preferably on either side of the alignment of injectors, placed parallel to and all along the latter, solid metal sides rising from the injectors, and protective partitions situated on the top of the solid metal sides.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: March 7, 2017
    Assignee: SAINT-GOBAIN ISOVER
    Inventors: Yannick Lefrere, Julien Marie, David Galley, Sebastien Chesnel, Frederic Lopepe, Oleg Boulanov
  • Patent number: 9586847
    Abstract: To provide a tin oxide refractory which prevents volatilization of SnO2 in a high temperature zone from an early stage and which also has high erosion resistance to glass. A tin oxide refractory comprising SnO2, SiO2 and ZrO2 as essential components, wherein the total content of SnO2, SiO2 and ZrO2 in the tin oxide refractory is at least 70 mass %, and, based on the total content of SnO2, SiO2 and ZrO2, the content of SnO2 is from 32 to 98 mol %, the content of SiO2 is from 1 to 35 mol % and the content of ZrO2 is from 1 to 35 mol %.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: March 7, 2017
    Assignee: Asahi Glass Company, Limited
    Inventors: Shuhei Ogawa, Yasuo Shinozaki
  • Patent number: 9580348
    Abstract: The production of a quartz glass grit comprises the granulation of pyrogenetically produced silicic acid, and the formation of a SiO2 granulate and the vitrification of the SiO2 granulate using a treatment gas, which contains at least 30% by volume of helium and/or hydrogen. Said process is time consuming and cost intensive.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: February 28, 2017
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventors: Walter Lehmann, Achim Hofmann, Thomas Kayser, Martin Arndt
  • Patent number: 9580346
    Abstract: A method for manufacturing an optical element includes pressing a phosphate-based glass containing Bi2O3 in a proportion of 10 mass % or higher and 30 mass % or lower with a hot mold; and then cooling the same, in which pressure equal to or higher than the critical pressure of oxygen and equal to or lower than a strength of glass is continuously applied to the glass from the time of bringing the glass into contact with the pressing surface of the mold at a glass viscosity of log ?=9 [dPa·sec] or higher and 10 [dPa·sec] or lower until the glass viscosity log ? increases to 12 [dPa·sec] by cooling.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shigeo Urai
  • Patent number: 9580349
    Abstract: A method for producing a vial with low alkali elution by removing a deteriorated region caused by processing on an internal surface of a vial is disclosed. The method is for forming vials from borosilicate glass tubes, which includes a first step of forming a mouth of the vial; a second step of forming the borosilicate glass tube into a cup-shaped body to form a bottom of a vial; and a third step of fire-blasting an internal surface of the cup-shaped body with a flame.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 28, 2017
    Assignee: NIPRO CORPORATION
    Inventors: Hideo Kuwabara, Hideki Yamauchi, Yoshitaka Ishimi, Shinichiro Senga
  • Patent number: 9574969
    Abstract: In one embodiment, an apparatus for screen testing an optical fiber includes a fiber conveyance pathway, a capstan having an outer circumference and a fiber contact region extending around the outer circumference, the fiber contact region having a durometer hardness of less than or equal to about 40 Shore A, where the capstan is positioned adjacent to the fiber conveyance pathway such that when the optical fiber is directed over the fiber conveyance pathway, the optical fiber engages with the fiber contact region, and a pinch belt positioned adjacent to the fiber conveyance pathway such that the fiber conveyance pathway extends between the pinch belt and the fiber contact region, where the pinch belt is engageable with the fiber contact region such that, when the optical fiber is directed over the fiber conveyance pathway, the optical fiber is impinged between the pinch belt and the fiber contact region.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: February 21, 2017
    Assignee: Corning Incorporated
    Inventors: Kirk Patton Bumgarner, Aditya Kaimal, Michael Terry Murphy, Bruce Warren Reding
  • Patent number: 9546908
    Abstract: An apparatus to sense temperature in a glassware forming machine. A mold body includes an exterior surface, a mold cavity having an interior mold surface, and a blind hole having a closed end including a closed end surface adjacent to and spaced outwardly from the interior mold surface, wherein the blind hole extends outwardly from the closed end surface toward the exterior surface. The mold body is removably carried on a mold hanger, and a light collector is carried by the mold hanger to collect infrared light emitted within the blind hole.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: January 17, 2017
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: Joshua D. Peeno, Gregory W. Nafziger
  • Patent number: 9527764
    Abstract: Provided is a quartz glass manufacturing method that involves using one or more burners, supplying hydrogen and oxygen to the one or more burners to generate an oxyhydrogen flame, introducing a silicide into the oxyhydrogen flame, forming a porous base material by depositing silicon dioxide generated from a flame hydrolysis reaction with the silicide, and heating and sintering the porous base material to form transparent glass, the method comprising supplying hydrogen that is stored or made at a normal temperature to the one or more burners; controlling a hydrogen flow rate using a measurement apparatus or control apparatus that performs measurement based on heat capacity of a gas; vaporizing liquid hydrogen stored in a low-temperature storage chamber, and supplying the vaporized liquid hydrogen to the one or more burners as backup hydrogen; switching from the hydrogen to the backup hydrogen; and when switching, adjusting the hydrogen flow rate to a value obtained by multiplying the hydrogen flow rate immedia
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: December 27, 2016
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Dai Inoue, Takaaki Nagao, Hiroyuki Koide
  • Patent number: 9522838
    Abstract: An apparatus and a method for producing a depressed-cladding core rod of an ultra-low water peak optical fiber, the apparatus including a core rod component, an inner cladding casing component, a high temperature heat source, chucks, a rotary joint, an external gas pipe, and a pressure controlling pipe. The core rod component is produced by fusing and splicing a core layer rod and a first hollow shaft together. The inner cladding casing covers the outside of the core layer rod. The inner cladding casing component is produced by fusing and splicing an inner cladding casing and a second hollow shaft together. These two hollow shafts are clamped in two chucks of a glass lathe. A high temperature heat source is arranged outside the inner cladding casing.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: December 20, 2016
    Assignee: ZHONGTIAN TECHNOLOGY ADVANCED MATERIALS CO., LTD.
    Inventors: Xinli Jiang, Xikai Xu, Jinwen Chen, Hui Zhou, Benhua Qian
  • Patent number: 9517969
    Abstract: The present invention provides an optical member having a high transmittance, wherein a composition change of a phase-separable base material glass film is suppressed. A method for manufacturing an optical member provided with a porous glass film on the base member includes the steps of forming a glass powder film containing a glass powder on the base member, forming a phase-separable base material glass film on the base member by heating and fusing the glass powder film in an atmosphere having an oxygen concentration of more than 20%, forming a phase-separated glass film on the base member by heating the base material glass film, and forming a porous glass film on the base member by subjecting the phase-separated glass film to an etching treatment.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: December 13, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoyuki Koketsu, Zuyi Zhang, Yoshinori Kotani, Akiko Takei, Akira Sugiyama, Kenji Takashima