Patents Examined by James Derrington
  • Patent number: 6854470
    Abstract: A non-smoking, non-ash, and non-combustible cigarette simulator. When the cigarette is smoked, electrical, magnetic, sonic, light and aromatic effects occur.
    Type: Grant
    Filed: November 27, 1998
    Date of Patent: February 15, 2005
    Inventor: Danming Pu
  • Patent number: 6748768
    Abstract: A method for doping silica soot with fluorine during laydown, including providing a bait rod, and providing a burner, wherein the burner emits a reactant flame. The method also including providing at least one first gas-feed separate from the burner, wherein the gas-feed supplies a first jet of fluorine-based gases, and depositing a layer of silica soot on the bait rod by vaporizing a silica producing gas within the reactant flame of the burner. The method further including supplying the first jet of fluorine-based gases to the silica soot deposited on to the bait rod via the first gas-feed subsequent to vaporizing at least a portion of the silica producing gas within the reactant flame of the burner.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: June 15, 2004
    Assignee: Corning Incorporated
    Inventors: Michael J. Lehman, Vaidyanathan Srikant, Jeffery S. Stone
  • Patent number: 6740285
    Abstract: Method of manufacturing a discharge lamp provided with a discharge vessel enclosing a discharge space. The discharge vessel is provided with a ceramic wall which is formed through sintering of a body shaped by sludge molding. The sludge molding process comprises the steps of: injecting an outer porous mold with sludge, precipitating the sludge against the outer mold, and removing the excess sludge, removing the outer mold, and pre-firing of the molded body. According to the invention, the sludge is injected into the outer mold by means of a hollow needle which extends to inside the hollow mold.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: May 25, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Lucas Johannes Anna Maria Beckers
  • Patent number: 6737013
    Abstract: A ceramic-molding binder includes a vinyl alcohol polymer having an ethylene unit content of 2 to 19 mole %, a polymerization degree of 200 to 2,000, a degree of saponification of 80 to 99.99 mole %, and a carboxylic acid and lactone ring content of 0.02 to 0.4 mole %. The use of the ceramic-molding binder provides green moldings with better formability and handling properties during the formation of smaller green moldings of more complex shape, and also provides ceramic products of good quality, higher yields, and fewer ceramic cracks when obtained by sintering such green moldings.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: May 18, 2004
    Assignee: Kuraray Co., Ltd
    Inventors: Takeshi Kusudou, Toshiyuki Akasawa
  • Patent number: 6729160
    Abstract: Apparatus (26) and a method for forming heated glass sheets in a heated chamber (22) of a housing (20) includes an upper mold support assembly (28) for supporting an upper mold (38) within the heated chamber for cyclical vertical movement between upper and lower positions. A lower mold shuttle (50) supports a lower mold (36) for cyclical movement between an idle position horizontally spaced from the upper mold and a use position below the lower mold. The apparatus also includes a lower mold support assembly (60) to which the lower mold is cyclically transferred from the lower mold shuttle (50) to provide support thereof while permitting horizontal alignment with the upper mold upon each cycle of downward movement to form a heated glass sheet between the molds. The lower mold shuttle (50) is supported by vertically movable rollers (70) to provide the transfer between the lower mold shuttle and the lower mold support assembly (60).
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: May 4, 2004
    Assignee: Glasstech, Inc.
    Inventors: David B. Nitschke, Eustace Harold Mumford, Dean M. Nitschke
  • Patent number: 6723274
    Abstract: The volume resistivity of a body consisting essentially of aluminum nitride is reduced by exposing the body to a soak temperature of at least about 1000° C. in an atmosphere deficient in nitrogen, such as an atmosphere consisting essentially of argon. The body can be, for example, a green body of aluminum nitride powder of a densified, or sintered body, such as a polycrystalline body. An electrostatic chuck has an electrode within a chuck body. A first portion of the chuck body, at a first side of the electrode, has a volume resistivity less than about 1×1013 ohm·cm at about 23° C. A second portion of the body, at a second side of the electrode, has a volume resistivity within one order of magnitude that of the first portion.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: April 20, 2004
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Ramesh Divakar
  • Patent number: 6715319
    Abstract: A method of producing flat glass in which foam which appears on the surface of molten glass melted using oxy-fuel burners is dispersed by directing a diffuse, luminescent flame onto the surface of the glass carrying the foam.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: April 6, 2004
    Assignee: Pilkington plc
    Inventors: Thomas Barrow, David Alan Bird
  • Patent number: 6716376
    Abstract: The invention relates to a process for producing a fiber composite material containing fibers with a high hot strength, in particular based on carbon, silicon, boron and/or nitrogen, a pressing compound being produced from fibers, a binder and, if appropriate, fillers and/or additives, which is then pressed in a press mold to form a green body. Various pressing compounds are produced, which contain fibers of different qualities and/or in different proportions, and the press mold is filled with the various pressing compounds in a number of successive steps. The invention also relates to a fiber composite material of this nature.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: April 6, 2004
    Assignee: DaimlerChrysler AG
    Inventors: Tilmann Haug, Kolja Rebstock, Christian Schwarz
  • Patent number: 6715318
    Abstract: There are provided a glass substrate for information recording media in which the undulations on the glass substrate surface are optimized, thus contributing to reduction of the flying height, and at the same time preventing the occurrence of head crashes and thermal asperity, and a method of manufacturing the glass substrate. At least one surface of a glass substrate is polished, and the polished at least one surface of the glass substrate is subjected to surface scrubbing using a sponge having an Asker C hardness of not less than 40 according to The Society of Rubber Industry, Japan SRIS 0101.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: April 6, 2004
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Kazuishi Mitani, Yasuhiro Saito, Tatsuro Umeyama
  • Patent number: 6705125
    Abstract: The present invention provides a method for reducing the density of sites on the surface of fused silica optics that are prone to the initiation of laser-induced damage, resulting in optics which have far fewer catastrophic defects and are better capable of resisting optical deterioration upon exposure for a long period of time to a high-power laser beam having a wavelength of about 360 nm or less. The initiation of laser-induced damage is reduced by conditioning the optic at low fluences below levels that normally lead to catastrophic growth of damage. When the optic is then irradiated at its high fluence design limit, the concentration of catastrophic damage sites that form on the surface of the optic is greatly reduced.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: March 16, 2004
    Assignee: The Regents of the University of California
    Inventors: John E. Peterson, Stephen M. Maricle, Raymond M. Brusasco, Bernardino M. Penetrante
  • Patent number: 6698249
    Abstract: An object of the present invention is to reduce the adhesion of floating glass particulates to the surface of a soot preform during the manufacture of the soot preform, thereby reducing the voids generated in the transparent glass preform made from the soot preform, and to improve the quality of the optical fiber manufactured from the transparent glass preform. The equipment of the invention is equipped with a reaction vessel 1, a burner 2 provided within the reaction vessel 1 into which raw material gas and combustion gas are supplied so as to generate glass particulates by hydrolysis reaction, and a starting rod 5 onto which the glass particulates generated by the burner 2 are deposited. By drawing up the starting rod 5 while turning it around its axis, the glass particulates are deposited on the tip of or around the starting rod 5 to form a soot preform 6 in column-like shape.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: March 2, 2004
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kanta Yagi, Sumio Hoshino, Wataru Kikuchi
  • Patent number: 6684665
    Abstract: Device for driving two mold half holders of a glass molding machine On a glass molding machine (5) holders (2; 3) are pivotally mounted about an axis (4). Each holder (2; 3) has mold tool halves (6; 7). A first joint bar (10) is articulated at a first articulation point (9) of each holder (2; 3). A second joint bar (12) is articulated at a second articulation point (11) of the first joint bar (10), which second joint bar is articulated for its part at a third articulation point (13) of the glass molding machine (5). A rod (14) is also articulated at the second articulation point (11) and is articulated with its other end at a crank pin (15) of a crank (16). Each of the two cranks (16) is coaxially connected to a toothed wheel (17; 18). The toothed wheels (17; 18) are in engagement with a worm (21) on diametrically opposite sides, which worm can be rotationally driven in a reciprocating manner by an electric servomotor (29) via a gear mechanism (30).
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: February 3, 2004
    Inventors: Hermann Bögert, Thomas Hartmann, Heinz Hermening
  • Patent number: 6672111
    Abstract: Methods and apparatus for adding metals such as aluminum to fused silica glass articles are disclosed. The methods and apparatus allow for controlled, low level addition of metals into fused silica glass articles. The fused silica glass articles containing added aluminum exhibit improved internal transmission and decreased absorption change when irradiated with a laser.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: January 6, 2004
    Assignee: Corning Incorporated
    Inventors: William P. Peters, Merrill F. Sproul, Daniel R. Sempolinski, Michael H. Wasilewski
  • Patent number: 6669892
    Abstract: A new method is disclosed for producing thin plates by sintering a thin gel plate (e.g., silica) made using a sol-gel process, which substantially eliminates warpage of the plate during the sintering step. Sintering a sol-gel based silica plate to a dense glass typically causes significant shrinkage, and this can cause the plate to curl, especially around its edges. This phenomenon is referred to as warpage. In the method of the invention, the sintering step is performed while the gel plate is mounted on a support surface, separated by a thin layer of refractory powder. At the high sintering temperature, the powder partially fuses and sticks to both the gel plate and the support surface, which prevents non-uniform stresses in the gel plate from warping the plate.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: December 30, 2003
    Inventors: Rahul Ganguli, Steven Colbern
  • Patent number: 6668837
    Abstract: In an arrangement for reducing noise level in a tobacco-processing production machine having an operator region and reflection surfaces facing the operator region, sound-damping material is disposed on the reflection surfaces facing the operator region.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: December 30, 2003
    Assignee: Hauni Maschinenbau AG
    Inventor: Uwe Heitmann
  • Patent number: 6667261
    Abstract: An open-cell glass crystalline porous material made from hollow microspheres which are cenospheres obtained from fly ash, having an open-cell porosity of up to 90 vol. % is produced. The cenospheres are separated into fractions based on one or more of grain size, density, magnetic or non-magnetic, and perforated or non-perforated. Selected fractions are molded and agglomerated by sintering with a binder at a temperature below the softening temperature, or without a binder at a temperature about, or above, the softening temperature but below the temperature of liquidity. The porous material produced has an apparent density of 0.3-0.6 g/cm3, a compressive strength in the range of 1.2-3.5 MPa, and two types of openings: through-flow wall pores in the cenospheres of 0.1-30 micrometers, and interglobular voids between the cenospheres of 20-100 micrometers.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: December 23, 2003
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Alexander G. Anshits, Olga M. Sharonova, Tatiana A. Vereshchagina, Irina D. Zykova, Yurii A. Revenko, Alexander A. Tretyakov, Albert S. Aloy, Rem I. Lubtsev, Dieter A. Knecht, Troy J. Tranter, Yevgeny Macheret
  • Patent number: 6660073
    Abstract: A porcelain composition for dental restorations comprising a leucite crystallite phase and a glass matrix phase, wherein the leucite crystallites possess diameters not exceeding about 10 micron. Preferably, the porcelain composition has a maturing temperature from about 750° to about 1050° C. and a coefficient of thermal expansion from about 12×10−6/° C. to about 17.5×10−6/° C., and comprises: Component Amount (wt. %) SiO2 57-66 Al2O3  7-15 K2O  7-15 Na2O  7-12 Li2O 0.5-3.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: December 9, 2003
    Assignee: Jeneric/Pentron Incorporated
    Inventors: Carlino Panzera, Lisa M. Kaiser
  • Patent number: 6652935
    Abstract: A laminated glass container has an inner layer of amber glass surrounded by an outer layer of flint glass. The container is manufactured by forming a cased glass stream, having an amber glass core and a flint glass casing layer, cutting the stream into individual gobs and molding the gobs into containers, all sufficiently rapidly that the amber glass does not have an opportunity chemically to react with the flint glass.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: November 25, 2003
    Assignee: Owens-Brookway Glass Container Inc.
    Inventors: Ronald A. Cirincione, W. Alan Poolos, Ronald T. Myers
  • Patent number: 6647748
    Abstract: A device for continuously twisting an optical fiber, which can add a sufficient twist to an optical fiber, is provided. Reciprocating rollers reciprocate so that the moving direction would be opposite each other along a center axis of rotation. The optical fiber passes through a gap between the reciprocating rollers and runs in contact with the outer circumferential surface of respective reciprocating rollers in order. Reciprocation of the reciprocating rollers adds a twist to the optical fiber. When &phgr; is a contacting angle between the optical fiber and the reciprocating rollers, F is maximum static friction of the optical fiber against the outer circumferential surface of the reciprocating rollers, and T is tension of the optical fiber, the coefficient of friction &mgr; between the optical fiber and the outer circumferential surface of the reciprocating rollers is lead from an operational formula of &mgr;=(1/&phgr;)·ln(F/T).
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: November 18, 2003
    Assignee: The Furukawa Electric Co., Ltd.
    Inventor: Nobuaki Orita
  • Patent number: 6644069
    Abstract: An end heating and processing method of an optical fiber preform. In this method, an optical fiber preform is processed by heating and melting an end of a vitrified optical fiber preform including a core portion and a cladding portion formed on an outer circumference thereof to process the end having a shape for drawing as an optical fiber.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: November 11, 2003
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Yukio Kohmura, Masahide Kuwabara, Kiyoshi Arima, Yasuhiro Naka, Shinpei Todo