Patents Represented by Attorney C. S. Janes, Jr.
  • Patent number: 5405811
    Abstract: This invention is directed to a transparent glass which, at a thickness of 2 mm, transmits less than 1% of ultraviolet radiation having a wavelength of 380 nm and exhibits a green fixed tint bounded by apices A,C,D,E,A of the drawing, a purity between 18-32%, and a dominant wavelength between 554-564 nm, said glass having a composition consisting essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ SiO.sub.2 65-72 Na.sub.2 O + K.sub.2 O 15-21 B.sub.2 O.sub.3 3-8 CaO 0-4 Al.sub.2 O.sub.3 0.5-5 ZnO 0-9 Na.sub.2 O 6-12 CaO + ZnO 1-5 K.sub.2 O 6-12 Fe.sub.2 O.sub.3 4.8-7.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: April 11, 1995
    Assignee: Corning Incorporated
    Inventors: David J. Kerko, David W. Morgan
  • Patent number: 5403789
    Abstract: A transparent glass which, at a thickness of 2 mm, transmits less than 1% of ultraviolet radiation having a wavelength of 380 nm and exhibits a brown fixed tint bounded by apices A, B, D, F, A of the drawing, a purity between 48-70%, and a dominant wavelength between 580-588 nm, said glass having a composition consisting essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ SiO.sub.2 65-72 CaO 0-5.5 B.sub.2 O.sub.3 3-8 ZnO 0-4 Na.sub.2 O 6-10 CaO + ZnO 2-5.5 K.sub.2 O 7-12 Fe.sub.2 O.sub.3 3-5 Na.sub.2 O + K.sub.2 O 15-20 Se 0.01-2 Al.sub.2 O.sub.3 0-4 NiO 0-0.12.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: April 4, 1995
    Assignee: Corning Incorporated
    Inventors: David J. Kerko, Wagner R. Lozano, David W. Morgan
  • Patent number: 5395413
    Abstract: A method of producing a fused silica product comprising introducing a silicon-containing, organometallic compound into a flame to form molten silica particles, and collecting the molten silica particles in a furnace having a crown and cup such that a fused silica product is obtained, wherein at least the furnace crown is formed from a porous, fired, zircon refractory having a sodium ion content of less than 30 ppm. The fused silica product produced by the method has a sodium ion contamination level below 100 parts per billion.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: March 7, 1995
    Assignee: Corning Incorporated
    Inventors: Daniel R. Sempolinski, Latha I. Swaroop
  • Patent number: 5392376
    Abstract: This invention is directed broadly to transparent glasses exhibiting excellent transmission far into the infrared region of the electromagnetic radiation spectrum, those glasses consisting essentially, expressed in terms of mole percent, of 40-80% Ga.sub.2 S.sub.3, 0-35% RS.sub.x, wherein R is at least one network forming cation selected from the group consisting of aluminum, antimony, arsenic, germanium, and indium, 1-50% Ln.sub.2 S.sub.3, wherein Ln is at least one cation selected from the group consisting of a rare earth metal cation and yttrium, 1-45% MS.sub.x, wherein M is at least one modifying metal cation selected from the group consisting of barium, cadmium, calcium, lead, lithium, mercury, potassium, silver, sodium, strontium, thallium, and tin, and 0-10% total chloride and/or fluoride. Glass compositions consisting essentially, expressed in terms of mole percent, of 5-30% Ga.sub.2 S.sub.3, 0-10% R.sub.2 S.sub.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: February 21, 1995
    Assignee: Corning Incorporated
    Inventors: Bruce G. Aitken, Mark A. Newhouse
  • Patent number: 5389584
    Abstract: This invention is directed to the production of transparent glasses exhibiting excellent transmission far into the infrared region of the electromagnetic radiation spectrum, said glasses consisting essentially, expressed in terms of mole percent on the sulfide basis, of 55-95% GeS.sub.2, 2-40% As.sub.2 S.sub.3, 0.01-20% R.sub.2 S.sub.3, wherein R is at least one trivalent network forming cation selected from the group consisting of gallium and indium, 0-10% MS.sub.x, wherein M is at least one modifying cation selected from the group consisting of aluminum, barium, cadmium, calcium, lead, lithium, mercury, potassium, silver, sodium, strontium, thallium, tin, yttrium, and a rare earth metal of the lanthanide series, 0-20% total of at least one halide selected from the group consisting of chloride and fluoride, 0-5% total selenide, and wherein the sulfur and/or selenium content can vary between 85-125% of the stoichiometric value.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: February 14, 1995
    Assignee: Corning Incorporated
    Inventors: Bruce G. Aitken, Mark A. Newhouse
  • Patent number: 5387558
    Abstract: This invention is directed to the formation of glass-ceramic articles which exhibit a yellow coloration in visible light and fluoresce with a yellow coloration while being exposed to ultraviolet radiation. The yellow coloration is produced through the incorporation of a color package comprising 0.05-0.5% V.sub.2 O.sub.5, 0.25-5% CeO.sub.2, and 0.1-1% Tb.sub.2 O.sub.3. When the glass-ceramic articles contain tetrasilicic fluormica as the predominant crystal phase, they are eminently suitable for use as dental prosthetic materials.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: February 7, 1995
    Assignee: Corning Incorporated
    Inventor: David G. Grossman
  • Patent number: 5385871
    Abstract: This invention is directed to a glass frit composition essentially free from lead and cadmium exhibiting a linear coefficient of thermal expansion (25.degree. C.-300.degree. C.) between about 75-85.times.10.sup.-7 /.degree.C., good flow at temperatures between about 950.degree.-1000.degree. C., a softening point between about 650.degree.-725.degree. C., and excellent resistance to attack by alkaline detergent and hydrochloric acid, said frit consisting essentially, expressed in terms of weight percent on the oxide basis (except for the fluorine content), of______________________________________ SiO.sub.2 49-55 MgO 0-2 B.sub.2 O.sub.3 13-20 CaO 1-7 Al.sub.2 O.sub.3 4.5-7 SrO 0-8 Na.sub.2 O 5-8.5 BaO 0-11 K.sub.2 O 5-8.5 ZnO 0-2 Na.sub.2 O + K.sub.2 O 11-16 F 0.25-3.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: January 31, 1995
    Assignee: Corning Incorporated
    Inventors: Jaroslava M. Nigrin, Paul L. Rose
  • Patent number: 5374595
    Abstract: This invention is related to glasses for use as substrates in flat panel display devices; more specifically, for use as substrates in LCDs which utilize polycrystalline silicon thin film transistors. The compositions for the inventive glasses are essentially free from alkali metal oxides and consist essentially, in mole percent, of______________________________________ SiO.sub.2 64-70 Y.sub.2 O.sub.3 0-5 Al.sub.2 O.sub.3 9.5-14 MgO 0-5 B.sub.2 O.sub.3 5-10 CaO 3-13 TiO.sub.2 0-5 SrO 0-5.5 Ta.sub.2 O.sub.5 0-5 BaO 2-7 Nb.sub.2 O.sub.5 0-5 MgO + CaO + SrO + BaO 10-20.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: December 20, 1994
    Assignee: Corning Incorporated
    Inventors: William H. Dumbaugh, Jr., Josef C. Lapp, Dawne M. Moffatt
  • Patent number: 5352638
    Abstract: This invention is directed to the production of thermally crystallizable glasses which can be crystallized in situ via heat treatment into glass-ceramic articles containing a nickel spinelloid as the predominant crystal phase. The glasses consist essentially, in weight percent, of 40-60% SiO.sub.2, 10-35% Al.sub.2 O.sub.3, 5-35% NiO, 0-20% MgO, and 0-15% total TiO.sub.2 and/or ZrO.sub.2. The preferred glasses contain at least 2% MgO.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: October 4, 1994
    Assignee: Corning Incorporated
    Inventors: George H. Beall, Joseph E. Pierson
  • Patent number: 5353148
    Abstract: This invention relates to an electrochromic device comprising a layer (2') of an electrochromic product held between two conducting layers (5',6') each formed on one face of a transparent plate (3',4'), electrodes formed on each of the conducting layers, and a source of direct current for selectively supplying these electrodes with electrical energy. Electrodes (8', 9', 10, 11) are of elongated shape and extend over facing surfaces of the two conducting layers (5',6'), essentially symmetrical with respect to the plane of the electrochromic layer (2').The invention has application to windows in the building industry or the automobile industry (windshields, windows, rear view mirrors, etc.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: October 4, 1994
    Assignee: Corning Incorporated
    Inventors: Bernard A. G. Eid, Jean-Pierre Themont
  • Patent number: 5350716
    Abstract: There is disclosed a fiber-reinforced composite having a high degree of fracture toughness and being composed of a glass-ceramic matrix reinforced with silicon carbide or graphite type fibers, the predominant crystal phase of the matrix glass-ceramic being canasite, and/or agrellite, and/or fedorite.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: September 27, 1994
    Assignee: Corning Incorporated
    Inventors: George H. Beall, Kenneth Chyung, Mark P. Taylor
  • Patent number: 5346865
    Abstract: This invention is directed to the production of transparent glasses exhibiting transmission far into the infrared regime of the radiation spectrum. The glasses consist essentially, in mole percent, of 42-55% CdF.sub.2 and/or CdCl.sub.2, 30-40% NaF and/or NaCl, 2-20% total of BaF.sub.2 and/or BaCl.sub.2 +KF and/or KCl, consisting of 0-15% BaF.sub.2 and/or BaCl.sub.2 and 0-7% KF and/or KCl, 1-12% total of at least one stabilizing metal halide selected from the group LiX, BeX.sub.2, MgX.sub.2, MnX.sub.2, PbX.sub.2, TlX, COX.sub.2, and ZnX.sub.2, and 0,005-0.5% REX.sub.3, wherein Re is at least one rare earth metal selected from the lanthanide series of rare earth metals and X is at least one halide selected from the group consisting of fluoride, chloride, and bromide. The preferred glasses contain at least 2% each of BaF.sub.2 and/or BaCl.sub.2 and KF and/or KCl.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: September 13, 1994
    Assignee: Corning Incorporated
    Inventors: Bruce G. Aitken, Frank A. Annunziata, Roger F. Bartholomew, Mark A. Newhouse, Mark L. Powley, Andrea L. Sadd
  • Patent number: 5342426
    Abstract: This invention is directed to a method for preparing glass sheet having surfaces which are essentially defect-free and equivalent in smoothness to polished glass surfaces which comprises the steps of: Two different batches of alkali-metal-free batches are melted and formed into a laminated sheet and the first glass is enclosed by the second glass. The second glass is 1000 times more soluble than the first glass. The laminate is contacted with an acid to dissolve the second glass wherein the first glass remains with essentially defect free surfaces.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: August 30, 1994
    Assignee: Corning Incorporated
    Inventor: William H. Dumbaugh, Jr.
  • Patent number: 5343260
    Abstract: This invention is directed to the fabrication of composite lenses consisting of a transparent thermoset polymer exhibiting an index of refraction of at least 1.58 and a thin glass element of essentially constant thickness adhered to the front surface of the polymer without the use of an adhesive, the glass element having a thickness not exceeding 0.3 mm and the thermoset polymer being an aromatic epoxy resin.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: August 30, 1994
    Assignee: Corning Incorporated
    Inventors: David Henry, Andre J. Vachet, Jacques J. Vial
  • Patent number: 5332530
    Abstract: This invention concerns an electrolytic material in the form of a solid gel for the modulation of light comprising a homogeneous mixture of:(A) at least one organic solvent;(B) at least one salt of an electrodepositable metal;( C ) at least one organic acid; and(D) at least one salt of a non-electrodepositable metal that facilitates the solubilization of metal salt (B);characterized in that it comprises in addition:(E) at least one agent gelling said mixture to a non-flowing, transparent, solid gel state.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: July 26, 1994
    Assignee: Corning Incorporated
    Inventors: Bernard A. G. Eid, Pascal J. J. Marque
  • Patent number: 5326728
    Abstract: This invention is directed to the production of lead-free enamels containing finely-divided glass particles, finely-divided pigment particles, and an organic binder wherein the glass particles consist essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ SiO.sub.2 35-50 Li.sub.2 O + Na.sub.2 O + K.sub.2 O <8 B.sub.2 O.sub.3 23-30 CaO 1-5 Al.sub.2 O.sub.3 10-22 CaO + MgO + ZnO + BaO + SrO <7 Li.sub.2 O 1-3 TiO.sub.2 0-2 Na.sub.2 O 0-3 ZrO.sub.2 0-5 K.sub.2 O 2-5 ______________________________________said glass having a softening temperature T.sub.L above 650.degree. C. and thermal expansion coefficient below 60.times.10.sup.-7 /.degree.C. Among other applications, said glass can be used for the decoration of low-expansion glass-ceramic cooking plates.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: July 5, 1994
    Assignee: Corning Incorporated
    Inventors: Gerard R. M. Boury, Daniel L. G. Ricoult
  • Patent number: 5326730
    Abstract: This invention is directed to glass compositions particularly designed for use as substrates in flat panel display devices and, more expressly, for use as substrates in LCDs which employ polycrystalline silicon thin film transistors. The glass compositions are essentially free from alkali metal oxides and consist essentially, in mole percent, of______________________________________ SiO.sub.2 65-76 MgO 0-5 ZrO.sub.2 0-2.5 Al.sub.2 O.sub.3 7-11 CaO 0-10 TiO.sub.2 0-3 BaO 12-19 SrO 0-10 Ta.sub.2 O.sub.5 0-3 B.sub.2 O.sub.3 0-5 MgO + 0-15 ZrO.sub.2 + 0.5-5. CaO + TiO.sub.2 + SrO Ta.sub.2 O.sub.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: July 5, 1994
    Assignee: Corning Incorporated
    Inventors: William H. Dumbaugh, Jr., Josef C. Lapp
  • Patent number: 5323191
    Abstract: This invention is directed to the production of glass-plastic lenses consisting of a thin glass element bonded to a relatively thick transparent lens or lens preform made of poly(diethylene glycol)bis(allyl carbonate) by a transparent thermoset, polyurethane adhesive layer of optical quality having an elongation at rupture of at least 200% and an elastic modulus in the range of 0.13-10 MPa and at 100% elongation.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: June 21, 1994
    Assignee: Corning Incorporated
    Inventors: Eric Firtion, David Henry, Jean-Jacques Theron, Andre J. Vachet, Jacques J. Vial
  • Patent number: 5300465
    Abstract: A transparent photochromic glass displaying a pink hue in the darkened state which, in bodies of 2 mm cross section, will exhibit the following optical properties:(a) a clear (undarkened) luminous transmittance greater than 82%;(b) a darkened luminous transmittance after 15 minutes' exposure to actinic radiation at 25.degree. C. between about 20-32%;(c) a darkened luminous transmittance after 15 minutes' exposure to actinic radiation at 40.degree. C. between about 35-55%;(d) a rate of fading such that the luminous transmittance after 5 minutes' removal from actinic radiation at 25.degree. C. will be at least 30 percentage units higher and will exhibit a luminous transmittance greater than 50%;(e) a x trichromatic coordinate between 0.3500 and 0.3700; and(f) a y trichromatic coordinate between 0.3250 and 0.3450;said glass consisting essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ SiO.sub.2 52-58 ZrO.sub.2 1.5-2.8 K.sub.2 O 4-8 B.sub.2 O.sub.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: April 5, 1994
    Assignee: Corning Incorporated
    Inventors: Luc Grateau, Michel Prassas
  • Patent number: 5273834
    Abstract: This invention is directed to the fabrication of magnetic memory storage devices which consist essentially of a head pad and a rigid information disc, that disc consisting essentially of a rigid substrate having a layer of magnetic media joined to the surface of said substrate through an underlayer. The invention is particularly drawn to the substrate for the information disc which is composed of a glass-based material containing 0.05-2% by weight total of cobalt oxide and/or iron oxide and/or nickel oxide. The most preferred glass-based material comprises a glass-ceramic wherein canasite constitutes the predominant crystal phase.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: December 28, 1993
    Assignee: Corning Incorporated
    Inventors: Herbert L. Hoover, Roger A. Miller, Linda R. Pinckney, Brent M. Wedding