Patents Assigned to Pilkington Group Limited
  • Publication number: 20220234334
    Abstract: A laminated window assembly has a first glass pane with a coating formed thereon, a second glass pane, and a polymeric interlayer provided between the first glass pane and the second glass pane. The coating includes a first layer deposited over a major surface of the glass pane, wherein the first layer has a refractive index of 1.6 or more and a thickness of 50 nm or less, a second layer deposited over the first layer, wherein the second layer has a refractive index that is less than the refractive index of the first layer and a thickness of 50 nm or less, a third layer deposited over the second layer, wherein the third layer has a refractive index that is greater than the refractive index of the second layer and a thickness of less than 500 nm, and a fourth layer deposited over the third layer, wherein the fourth layer has a refractive index that is less than the refractive index of the third layer and a thickness of 100 nm or less.
    Type: Application
    Filed: May 20, 2020
    Publication date: July 28, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: SRIKANTH VARANASI, DAVID LAWRENCE BAMBER, SHANNON JURCA, DAVID ALAN STRICKLER
  • Patent number: 11397344
    Abstract: A switchable glazing unit comprising a glazing panel spaced apart from a pane of glazing material by a perimeter seal is described. The glazing panel comprises first and second glass sheets. A first electrode layer is on a first major surface of the first glass sheet and a second electrode layer is on a first major surface of the second glass sheet. A layer of liquid crystal material is between the first electrode layer and the second electrode layer. When no voltage is applied to the first and second electrode layers, the liquid crystal layer has a first opacity, and upon applying a suitable voltage between the first and second electrode layers, the liquid crystal layer has a second opacity different to the first opacity. Methods of making such a switchable glazing unit are also described.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: July 26, 2022
    Assignee: Pilkington Group Limited
    Inventors: Jonathan Mark Williams, Joseph Jeremy Boote
  • Publication number: 20220212524
    Abstract: A window assembly includes a first pane of glass. The first pane of glass is chemically strengthened and exhibits a surface compressive stress of 400 MPa or more. A second pane of glass has a first major surface and a second major surface. The second major surface of the second pane of glass and a first major surface of the first pane of glass face each other. The second pane of glass includes 68-74 weight % SiO2, 2-6 weight % MgO, 1-10 weight % CaO, 12-16 weight % Na2O, 0-1 weight % K2O, 0.8-2.0 weight % Fe2O3 (total iron), 0-1.25 weight % TiO2, and 0-1.25 weight % CeO2. A polymeric interlayer is provided between the first pane of glass and the second pane of glass. The window assembly exhibits a direct solar transmittance of 55% or less and a total solar transmittance of 65% or less.
    Type: Application
    Filed: March 24, 2022
    Publication date: July 7, 2022
    Applicant: Pilkington Group Limited
    Inventors: Srikanth Varanasi, Martin James Horsley, James Eckhart
  • Publication number: 20220204397
    Abstract: A method of reducing the emissivity of a coated glass article includes the following steps in sequence: (a) forming a coated glass article, the coated glass article comprising a glass substrate and a coating formed on the glass substrate, the coating having a first layer deposited over the glass substrate and a second layer, the second layer being provided between the first layer and the glass substrate, wherein the coated glass article exhibits a first emissivity; and (b) heating the coated glass article in an environment set to a predetermined temperature and for a predetermined period of time. After step (b), the coated glass article exhibits a second emissivity, the second emissivity being less than the first emissivity.
    Type: Application
    Filed: May 20, 2020
    Publication date: June 30, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: SRIKANTH VARANASI, DAVID ALAN STRICKLER, VIKASH RANJAN
  • Publication number: 20220205104
    Abstract: A combination of a chemical vapour deposition (CVD) coater and at least one capacitive proximity sensor, comprising: a CVD coater, and at least one capacitive proximity sensor attached to the CVD coater, wherein the at least one capacitive proximity sensor is arranged to determine the distance between a glass substrate and the CVD coater.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 30, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: DAVID RIMMER, IAN ROSS WILLIAMS, STEPHEN ROLAND DAY, PETER MICHAEL HARRIS, DAVID EVANS
  • Publication number: 20220177346
    Abstract: Methods of making a laminated glazing having reduced optical distortion when installed in a vehicle are described. The laminated glazing has first and second sheets of glazing material each separately shaped between a pair of shaping members that are then laminated together. The position for bending the first sheet of glazing material may be deliberately offset from the position for bending the second sheet of glazing material. During the lamination step, the first sheet of glazing material may be displaced relative to the second sheet of glazing material by a lateral and/or longitudinal positional displacement. The first and/or second sheet of glazing material may have been cut such that after lamination at least a portion of the peripheral edges thereof are aligned. Apparatus for shaping a sheet of glazing material for carrying out the aforementioned methods is also described, as is a resulting laminated glazing.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Applicant: Pilkington Group Limited
    Inventors: Peter PAULUS, Joachim PILZ
  • Publication number: 20220176681
    Abstract: A laminated glazing has a first glass ply having first and second surfaces, a second glass ply having third and fourth surfaces, an obscuration band around at least a portion of the glazing periphery, the obscuration band having a sensor window and comprising first and second obscuration layers, the first obscuration layer adhered to at least a portion of the periphery of the first/second surface and comprising a first sensor window portion having a first sensor window portion optical distortion, the second obscuration layer adhered to at least a portion of the periphery of the third/fourth surface and comprising a second sensor window portion having a second sensor window portion optical distortion. first and second sensor window portion optical distortions are each controlled so the absolute magnitude of the optical distortion of the sensor window is lower than the absolute magnitude of the first and second sensor window optical distortions.
    Type: Application
    Filed: March 26, 2020
    Publication date: June 9, 2022
    Applicant: Pilkington Group Limited
    Inventor: Jonathan Peter VOSS
  • Patent number: 11345630
    Abstract: A coated glass article includes a glass substrate and an anti-reflective coating formed over a first major surface of the glass substrate. The anti-reflective coating includes a color suppression interlayer and a first coating layer deposited over the color suppression interlayer. The first coating layer includes tin oxide and a dopant. The dopant includes antimony, molybdenum, or iron. A second coating layer is deposited over the first coating layer. The second coating layer includes an oxide of silicon. The coated glass article exhibits a total visible light transmittance of 70% or more and a film side visible light reflectance of less than 6.0%.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: May 31, 2022
    Assignee: Pilkington Group Limited
    Inventors: Matthew Barrington Mahoney, Neil McSporran, Srikanth Varanasi, Kyle Erik Sword, Jason Michael Shirk
  • Patent number: 11339078
    Abstract: A method of reducing the volume of float bath atmosphere lost from an opening in the exit end of the float bath is described. The method comprises directing a first jet of fluid having a first jet velocity followed by a second jet velocity towards a plane a conveyance for a float glass ribbon. An obstruction in the path of the first jet of fluid causes the jet to change from the second to a third jet velocity. The obstruction may be a portion of a roller positioned outside the opening or a float glass ribbon that has been formed on a surface of molten metal contained in the float bath that has subsequently been transferred through the opening. A float bath having sealing means to reduce atmosphere loss from an exit of the float bath is also described, as is an assembly useful in carrying out the aforementioned methods.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: May 24, 2022
    Assignee: Pilkington Group Limited
    Inventors: Karl Olverson, Gavin Parry, Mark David Lynam, Ian Ross Williams, David Lawrenson
  • Publication number: 20220153635
    Abstract: A glass article includes a glass substrate with a coating formed over the glass substrate. The coating includes a first anti-reflective layer deposited over the glass substrate, the first layer having a refractive index of 1.6 or more and a thickness of less than) ?/(4*n). A second anti-reflective layer is deposited over the first anti-reflective layer, the second anti-reflective layer having a thickness that is greater than the thickness of the first anti-reflective layer and a refractive index that is less than the refractive index of the first anti-reflective layer. The glass article exhibits a total visible light reflectance of less than 6.0%.
    Type: Application
    Filed: March 13, 2020
    Publication date: May 19, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: JUN NI, SRIKANTH VARANASI
  • Patent number: 11299018
    Abstract: A window assembly includes a first pane of glass. The first pane of glass is chemically strengthened and exhibits a surface compressive stress of 400 MPa or more. A second pane of glass has a first major surface and a second major surface. The second major surface of the second pane of glass and a first major surface of the first pane of glass face each other. The second pane of glass includes 68-74 weight % SiO2, 2-6 weight % MgO, 1-10 weight % CaO, 12-16 weight % Na2O, 0-1 weight % K2O, 0.8-2.0 weight % Fe2O3 (total iron), 0-1.25 weight % TiO2, and 0-1.25 weight % CeO2. A polymeric interlayer is provided between the first pane of glass and the second pane of glass. The window assembly exhibits a direct solar transmittance of 55% or less and a total solar transmittance of 65% or less.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: April 12, 2022
    Assignee: Pilkington Group Limited
    Inventors: Srikanth Varanasi, Martin James Horsley, James Eckhart
  • Publication number: 20220073419
    Abstract: The present invention relates to a method of depositing a coating comprising zinc oxide on a substrate; to a chemical vapour deposition precursor mixture for use in same and to a coated glass article and a photovoltaic cell prepared with a zinc oxide coating prepared using the method which comprises: providing a substrate, providing a precursor mixture comprising an alkyl zinc compound and a phosphorus source, the phosphorus source comprising a compound of formula OnP(OR)3, wherein n is 0 or 1 and each R is hydrocarbyl, and delivering the precursor mixture to a surface of the substrate.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: LIAM SONIE PALMER, PETER MICHAEL HARRIS, GARY ROBERT NICHOL
  • Publication number: 20220034155
    Abstract: The present invention relates to a transparent substrate comprising a multiple layer coating stack and the use of same in the manufacture of a double glazing unit, wherein the multiple layer coating stack comprises, n functional metal layer, m; and n plus 1 (n+1) dielectric layer, d, wherein the dielectric layers are positioned before and after each functional metal layer, and wherein n is the total number of functional metal layer in the stack counted from the substrate and is greater than or equal to 3; and wherein each dielectric layer comprises one or more layers, characterized in that the geometrical layer thickness of each functional metal layer in the coating stack Gm, is greater than the geometrical layer thickness of each functional metal layer appearing before it in the multiple layer coating stack, that is, Gmi+1>Gmi wherein i is the position of the functional metal layer in the coating stack counted from the substrate, and wherein for each dielectric layer d located before and after each functi
    Type: Application
    Filed: December 9, 2019
    Publication date: February 3, 2022
    Applicant: PILKINGTON GROUP LIMITED
    Inventors: THOMAS PAUL, AXEL NĂ–THE, TOBIAS BREIL
  • Patent number: 11230266
    Abstract: A laminated glazing and related detection method is described. The laminated glazing has a detecting device to determine the presence of mist on a surface of the glazing and/or the presence of an object contacting or proximal the glazing. The detecting device including transmitter means for emitting a beam of electromagnetic radiation, detector means for detecting electromagnetic radiation and a target for non-specular reflection of first beam of electromagnetic radiation. The transmitter means is configured to emit the beam of electromagnetic radiation to illuminate the target such that electromagnetic radiation reflects therefrom to illuminate a region of a major surface of the glazing. At least a portion of the electromagnetic radiation reflected off the region is detectable by the detector means to provide a detection signal for detecting mist on the region and/or the presence of an object contacting or proximal the glazing. A detection method is also described.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: January 25, 2022
    Assignee: Pilkington Group Limited
    Inventor: Stephen Roland Day
  • Patent number: 11223129
    Abstract: A connector for at least two antennas, comprising a base layer, first and second electrical conductors secured on the base layer, wherein the first electrical conductor is suitable for signals in a first frequency band F1 and the second electrical conductor is suitable for signals in a second frequency band F2, wherein F2 is higher than F1; and first and second electrical conductors comprise first and second input portions, first and second output portions and first and second linear portions extending between first and second input portions and first and second output portions respectively, wherein first and second linear portions extend substantially parallel with each other and wherein an average width of the first linear portion is less than an average width of the second linear portion. A glazing comprising the conductor and an antenna system comprising the conductor are also claimed. Connector provides superior performance in double band operation.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: January 11, 2022
    Assignee: PILKINGTON GROUP LIMITED
    Inventor: Detlef Baranski
  • Patent number: 11221537
    Abstract: A switchable device for changing the opacity of at least a portion of a glazing is described. The switchable device comprises at least two (a first and a second) switchable regions in electrical communication with at least two (a first and a second) electrical connector regions. Each switchable region comprises an electrically actuated variable opacity layer between a first electrode and a second electrode, the first switchable region being arranged relative to the second switchable region such that upon connecting the first and second electrical connector regions to a suitable power supply, the opacity of the first and second switchable region changes such that at least two (a first and a second) portions of the switchable device have a change of opacity, the first portion of the switchable device having a different opacity to the second portion of the switchable device.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: January 11, 2022
    Assignee: PILKINGTON GROUP LIMITED
    Inventors: Andrew Thomas Stanley, Jonathan Barclay Dixon, Jonathan Peter Voss
  • Publication number: 20210403363
    Abstract: Methods of shaping a glass sheet are described comprising heating the glass sheet to a temperature for shaping; positioning the glass sheet on a shaping support; shaping the glass sheet on the shaping support, wherein during the shaping of the glass sheet at least one portion of the glass sheet is deliberately cooled. In preferred embodiments, the shaping of the glass sheet involves press bending a heat softened glass sheet between a lower shaping support and an upper shaping member, and wherein during the shaping of the glass sheet on the shaping support only a portion of the major surface of the glass sheet facing the lower shaping support is cooled by directing one or more jet of air onto said portion.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 30, 2021
    Applicant: Pilkington Group Limited
    Inventors: Michael HURST, John George LEE, Joachim PILZ
  • Publication number: 20210387578
    Abstract: A vehicle windscreen has a bracket attached for a sensor including a camera, the bracket comprising a baseplate and a retaining element. The sensor is housed in a housing inserted in the bracket, and at least one rod-shaped member projects from the housing, by way of which it is removably retained in the bracket. A first retaining element variant comprises a raised bed integrated with the baseplate, and a resilient opposed limb, joined to the bed at one end and free at the other end. The limb opposes the bed, and an elongate space extends between the two, with the space closed at one end and open at the other end so the rod-shaped member may enter/be retained in the space. Another retaining element variant comprises a bore having a conical portion and a cylindrical portion in communication with each other, and aligned along a common axis of rotation.
    Type: Application
    Filed: October 2, 2019
    Publication date: December 16, 2021
    Applicant: Pilkington Group Limited
    Inventors: Tomasz SIUDAK, Lukasz PAWELEC
  • Patent number: 11192820
    Abstract: A coated glass pane and a method of preparing same comprising at least the following layers in sequence: a glass substrate; a lower anti-reflection layer, a silver-based functional layer; a barrier layer; an upper dielectric layer; and a topmost dielectric layer which comprises an oxide of zinc (Zn), tin (Sn) and zirconium (Zr); and wherein the amount of zirconium in the topmost dielectric layer comprises at least 10 atomic percent zirconium.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 7, 2021
    Assignee: Pilkington Group Limited
    Inventors: Monica Joscelyn Hughes, Charlie James Patrickson, Kieran James Cheetham, John Andrew Ridealgh, Rory Back
  • Patent number: 11179916
    Abstract: A laminated glazing comprising a first ply of glazing material and a second ply of glazing material joined by at least one ply of adhesive interlayer material is disclosed. The first ply of glazing material comprises a sheet of glass having a first composition and the second ply of glazing material comprises a sheet of glass having a second composition different to the first composition. The laminated glazing has (i) a peripheral region extending around the periphery of the laminated glazing, the laminated glazing having a surface compression stress in the peripheral region and (ii) an edge compression, wherein the magnitude of edge compression is greater than the magnitude of the surface compression stress in the peripheral region. A method of making such a laminated is provided. A glass sheet suitable for being incorporated in such a laminated glazing is also disclosed.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: November 23, 2021
    Assignee: PILKINGTON GROUP LIMITED
    Inventors: Massimo Michetti, Joachim Pilz