Patents Represented by Attorney, Agent or Law Firm Adenike A. Adewuya
  • Patent number: 6810691
    Abstract: A method of making glass tubing includes assembling together a first glass rod having at least one bore and a second glass rod having at least one bore to form a single glass unit, shaping an outer surface of the glass unit to a desired cross-section, and drawing the glass unit to form a glass tubing having a predetermined outer and inner dimension.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: November 2, 2004
    Assignee: Corning Incorporated
    Inventors: James Gerard Fagan, David J. Gokey, Nikki J. Russo
  • Patent number: 6753279
    Abstract: A glass composition suitable for manufacturing plasma displays and large-area displays using the fusion draw process is provided. The glass composition includes 59-66 mol % SiO2, 14.5-18.0 mol % Al2O3, 8.5-12.0 mol % Na2O, 2.5-6.5 mol % K2O, 2.5-9.0 mol % CaO, 0.0-3.0 mol % MgO, 0.0-3.0 mol % SrO, 0.0-3.0 mol % BaO, and 0.0-5.0 mol % MgO+SrO+BaO.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: June 22, 2004
    Assignee: Corning Incorporated
    Inventor: Jeffrey T. Kohli
  • Patent number: 6732551
    Abstract: A method for making silica includes delivering a silica precursor comprising a pseudohalogen to a conversion site and passing the silica precursor through a flame to produce silica soot.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: May 11, 2004
    Assignee: Corning Incorporated
    Inventors: David L. Tennent, Joseph M. Whalen
  • Patent number: 6698247
    Abstract: A method for making silica includes delivering a silica precursor comprising a perfluorinated group to a conversion site and passing the silica precursor through a conversion flame to produce silica soot.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: March 2, 2004
    Assignee: Corning Incorporated
    Inventors: David L. Tennent, Joseph M. Whalen
  • Patent number: 6699412
    Abstract: A process for forming a silicon carbide structure includes molding by compression a mixture of a silicon precursor powder and a cross-linking thermoset resin to form a rigid structure, carbonizing the rigid structure, and forming a silicon carbide structure by heating the carbonized rigid structure at a temperature sufficient to allow carbon and silicon in the structure to react to form silicon carbide.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: March 2, 2004
    Assignee: Corning Incorporated
    Inventors: Kishor P. Gadkaree, Joseph F. Mach
  • Patent number: 6656398
    Abstract: A method for forming a pattern in a film carried on a substrate includes depositing a layer of alkyl silane on a surface of a mold having a pattern, bringing the mold in contact with the film on the substrate and pressing the mold into the film so as to emboss the pattern on the mold in the film, wherein the film comprises a thermoplastic polymer, and removing the mold from the film.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: December 2, 2003
    Assignee: Corning Incorporated
    Inventors: William R. Birch, Alain R. E. Carre, Paul D. Frayer, Kenjiro Hasui
  • Patent number: 6633700
    Abstract: A method for aligning optical fibers with an optical component includes making a lens on an end of each optical fiber to form a microlensed fiber and arranging the microlensed fibers such that an optical axis of each of the optical fibers is oriented along a common direction. The method further includes positioning each lens a selected distance from the optical component so as to couple light into and out of the optical component.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 14, 2003
    Assignee: Corning Incorporated
    Inventors: Robert A. Bellman, Ronald L. Burt, Donald M. Trotter, Ljerka Ukrainczyk
  • Patent number: 6606883
    Abstract: A method for forming a fused silica glass includes delivering a silica precursor to a burner and passing the silica precursor through the flame of the burner to form silica particles, depositing the silica particles on a planar surface to form a flat, porous preform, dehydrating the porous preform, and consolidating the porous preform into a flat, dense glass.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: August 19, 2003
    Assignee: Corning Incorporated
    Inventors: Kenneth E. Hrdina, Nikki J. Russo, Michael H. Wasilewski
  • Patent number: 6596201
    Abstract: A method for patterning an optical property on a optical element that includes selectively applying an energy source to an optical element to pattern an optical property thereon. A method is disclosed where the optical element includes metal halide particles dispersed in the optical element. A method is also disclosed where localized heating includes pre-heating the optical element and heating a small region of the optical element with sufficient energy for metal halide particles to relax in shape. An additional method is disclosed for patterning an optical property on an optical element that includes fusing pieces of optical element containing the optical property with pieces of optical element without the optical property by heat treatment.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: July 22, 2003
    Assignee: Corning Incorporated
    Inventors: Nicholas F. Borrelli, Donald M. Trotter, Jr., Ljerka Ukrainczyk
  • Patent number: 6594419
    Abstract: A tapered lensed fiber includes a tapered multimode fiber having a gradient-index core and an optical fiber attached to the tapered multimode fiber. A method for forming a tapered lensed fiber includes attaching an optical fiber to a multimode fiber having a gradient-index core, applying heat to a surface of the multimode fiber, and pulling the multimode fiber into a taper. The method also allows for forming a tapered polarization-maintaining fiber while preserving stress rods and polarization isolation properties of the polarization-maintaining fiber.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: July 15, 2003
    Assignee: Corning Incorporated
    Inventors: Ljerka Ukrainczyk, Debra L. Vastag
  • Patent number: 6562126
    Abstract: A method for producing below 200 nm transmitting optical fluoride crystals includes loading a fluoride raw material into a vertical stack having at least 6 crystal growth chambers, heating the vertical stack to a temperature sufficient to maintain the fluoride raw material in a molten condition, applying a crystal growth thermal gradient to the vertical stack to form optical fluoride crystals within the molten fluoride raw material, and cooling the crystals.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: May 13, 2003
    Assignee: Corning Incorporated
    Inventor: Michael W. Price
  • Patent number: 6555032
    Abstract: A process for forming a porous silicon nitride-silicon carbide body, the process comprising (a) forming a plasticizable batch mixture comprising (1) powdered silicon metal; (2) a silicon-containing source selected from the group consisting of silicon carbide, silicon nitride and mixtures thereof; (3) a water soluble crosslinking thermoset resin having a viscosity of about 50-300 centipoise; and, (4) a water soluble thermoplastic temporary binder; (b) shaping the plasticizable batch mixture to form a green body; (c) drying the green body; (d) firing the green body in nitrogen at a temperature of 1400° C. to 1600° C. for a time sufficient to obtain a silicon nitride-silicon carbide structure.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: April 29, 2003
    Assignee: Corning Incorporated
    Inventor: Kishor P. Gadkaree
  • Patent number: 6412552
    Abstract: A cable protector includes a housing body which is adapted to fit in a pipe connector. The housing body has a central bore and an insert body is rotatably supported in the central bore. The insert body has a groove which is adapted to receive a cable.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: July 2, 2002
    Assignee: Schlumberger Technology Corporation
    Inventor: Alvin Rooks
  • Patent number: 6403508
    Abstract: An optical member includes a fused silica glass having a concentration of ≡SiH moiety below detection limit as measured by Raman spectroscopy and a concentration of molecular hydrogen of at least 1×1017 molecules/cm3. The fused silica glass exhibits an induced absorption level which quickly attains an initial peak upon exposure to irradiation and rapidly decays to a low value. The induced absorption level after decaying to the low value remains substantially unchanged by further irradiation.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: June 11, 2002
    Assignee: Corning Incorporated
    Inventors: Roger J. Araujo, Nicholas F. Borrelli, Robert E. McLay, Daniel R. Sempolinski, Charlene M. Smith
  • Patent number: 6392753
    Abstract: An accelerated radiation damage testing method for an optical sample includes disposing the optical sample inside or external to an optical cavity and injecting a predetermined number of light pulses into the optical cavity at a selected wavelength and at spaced intervals. Each light pulse injected into the optical cavity produces a train of pulses which are focused on the optical sample. The method further includes allowing each light pulse in the optical cavity to decay to a selected value and determining a change in a selected optical property of the optical sample after the optical sample has been exposed to a predetermined number of pulses.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: May 21, 2002
    Assignee: Corning Incorporated
    Inventor: Stephan L. Logunov
  • Patent number: 6382595
    Abstract: A hydrostatic transmission system for driving a rotatable member includes a differential having an output coupled with the rotatable member, a first hydrostatic drive having an output coupled to a first input of the differential, and a second hydrostatic drive having an output coupled to a second input of the differential. The output of the first hydrostatic drive is rotatable in a first selected direction and at a first selected speed. The output of the second hydrostatic drive is rotatable in a second selected direction and at a second selected speed. A rotational speed and direction of the output of the differential is related to the algebraic sum of the rotational speeds and directions of the outputs of the hydrostatic drives. In one embodiment, the speeds of the first and second drives are maintained above a minimum stable threshold, while operating the rotatable drive at very low or zero speed, by selecting the first direction to be opposite the second direction.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: May 7, 2002
    Assignee: Schlumberger Technology Corporation
    Inventor: Raymond V. Nold, III
  • Patent number: 6378337
    Abstract: A method for preparing high-purity, bulk fused silica includes supplying silane gas, a gaseous fuel, and oxygen gas to a combustion burner. Silica particles are formed by passing the silane gas into a flame formed by the combustion reaction of the gaseous fuel with the oxygen gas while maintaining the ratio of the flow rate of the gaseous fuel to the flow rate of the silane gas no less than twelve and the ratio of the flow rate of the gaseous fuel to the flow rate of the oxygen gas no less than three. The silica particles formed are immediately deposited onto a hot bait to form a boule.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: April 30, 2002
    Assignee: Corning Incorporated
    Inventors: John T. Brown, Michael S. Dobbins, Christine E. Heckle, Robert E. McLay, Mahendra K. Misra, Dale R. Powers, Michael H. Wasilewski
  • Patent number: 6286337
    Abstract: A tubing system for conveying a molten material through a vacuum housing includes a tubing having a plurality of convolutions which compress as the tubing expands. A plurality of projections disposed along a length of the tubing carries the electrical current which heats the tubing. A plurality of refractory insulation bricks are stacked between the projections. A first seal flange is coupled to an inlet end of the tubing, and a second seal flange is coupled to an outlet end of the tubing. Each seal flange includes a metal seal ring which is adapted to be coupled to the base of the vacuum housing so as to make a sealed contact with the base of the vacuum housing. Each seal flange also includes a refractory seal block which transfers the expansion force of the tubing to the metal seal ring and, thereby, causes the convolutions to compress.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: September 11, 2001
    Assignee: Corning Incorporated
    Inventor: Ronald W. Palmquist