公开(公告)号：BR0009970A

公开(公告)日：2002-01-08

申请号：BR0009970

申请日：2000-04-07

Applicant: CORNING INC

Inventor： BERKEY GEORGE EDWARD ,  HAWTOF DANIEL WARREN ,  POWERS DALE ROBERT ,  GIROUX CYNTHIA B ,  SRIKANT V ,  BOOKBINDER DANA C ,  FIACCO RICHARD M

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03C13/04 ,  G02B6/02 ,  C03B37/018 ,  G02B6/16

Abstract: A cylindrical glass body having a low water content centerline region and method of manufacturing such a cylindrical glass body for use in the manufacture of optical waveguide fiber is disclosed. The centerline region of the cylindrical glass body has a water content sufficiently low such that an optical waveguide fiber made from the cylindrical glass body of the present invention exhibits an optical attenuation of less than about 0.35 dB/km, and preferably less than about 0.31 dB/km at a measured wavelength of 1380 nm. A low water content plug used in the manufacture of such a cylindrical glass body, an optical waveguide fiber having a low water peak, and an optical fiber communication system incorporating such an optical waveguide fiber is also disclosed.

公开(公告)号：ZA200100713B

公开(公告)日：2001-07-17

申请号：ZA200100713

申请日：2001-01-25

Applicant: CORNING INC

Inventor： CAIN MICHAEL B ,  HAWTOF DANIEL WARREN ,  SRIKANT V

IPC: G02B6/00 ,  C03B19/14 ,  C03B37/014 ,  C03B37/018 ,  C03B

Abstract: The present invention is directed to methods of producing soot used in the manufacture of optical waveguides. Both non-aqueous liquid reactants and aqueous solutions containing one or more salts are delivered through an atomizing burner assembly to form a homogenous soot stream containing the oxides of the selected elements contained within the non-aqueous liquid reactant and the aqueous solution. The resulting multi-component soot is collected by conventional methods to form preforms used in the manufacture of optical waveguide fibers. Alternatively, an aqueous solution may be atomized with a gas at a first burner assembly to form an aerosol and a reactant vaporized for delivery to a second burner assembly. Preforms produced by the methods are also disclosed. The aqueous solution is preferably one comprising a metal salt, e.g. acetate, nitrate, sulfate, carbonate, chloride, hydroxide. The metal of the metal salt is preferably an alkali metal, an alkaline earth metal, lead, lanthanum, cobalt, antimony, erbium, aluminum, neodymium, praeseodymium.

公开(公告)号：BR9813652A

公开(公告)日：2000-10-03

申请号：BR9813652

申请日：1998-12-03

Applicant: CORNING INC

Inventor： HAWTOF DANIEL WARREN

IPC: F23D14/14 ,  C01B13/20 ,  C01B33/18 ,  C03B8/04 ,  C03B19/14 ,  C03B37/014 ,  F23D14/56 ,  F23D14/58 ,  F23D99/00 ,  H04R29/00 ,  C03B37/018

Abstract: A burner and a method for producing an inorganic soot such as silica comprising a plurality of substantially planar layers having multiple openings therethrough formed by a micromachining process. The openings are in fluid communication with a precursor inlet and a gas inlet to permit the gas and the precursor to flow through and exit the burner. The burner produces a flame from a combustible gas in which the precursor undergoes a chemical reaction to form the soot.

公开(公告)号：BR9811514A

公开(公告)日：2000-09-26

申请号：BR9811514

申请日：1998-07-07

Applicant: CORNING INC

Inventor： BLACKWELL JEFFREY L ,  HAWTOF DANIEL WARREN ,  POWERS DALE ROBERT ,  FU XIAODONG

IPC: B01J19/26 ,  C01B33/18 ,  C03B8/04 ,  C03B19/10 ,  C03B19/14 ,  C03B20/00 ,  C03B37/014 ,  C03B37/018 ,  C03C1/00 ,  C03C3/06

Abstract: The present invention is directed to a method for making silica. A liquid, preferably halide-free, silicon-containing compound capable of being converted by thermal oxidative decomposition to SiO2 is provided and introduced directly into the flame of a combustion burner, which converts the compound to silica, thereby forming finely divided amorphous soot. The soot is vaporized at the site where the liquid is converted into silica by pneumatically atomizing the liquid with a stream of oxygen gas, or a mixture of oxygen gas and nitrogen gas. The amorphous soot is deposited on a receptor surface where, either substantially simultaneously with or subsequently to its deposition, the soot is consolidated into a body of fused silica glass.

公开(公告)号：ZA9904171B

公开(公告)日：2000-03-28

申请号：ZA9904171

申请日：1999-06-24

Applicant: CORNING INC

Inventor： HAWTOF DANIEL WARREN ,  STONE JOHN

IPC: G02B6/00 ,  C03B8/04 ,  C03B19/14 ,  C03B20/00 ,  C03B37/014 ,  F23D14/48 ,  F23J ,  C01B ,  C03B ,  C10B

CPC classification number: C03B19/1423 ,  C03B37/0142 ,  C03B2201/06 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2207/06 ,  C03B2207/08 ,  C03B2207/12 ,  C03B2207/14 ,  C03B2207/20 ,  C03B2207/22 ,  C03B2207/32 ,  C03B2207/34 ,  C03B2207/42 ,  C03B2207/46 ,  Y02P40/57

公开(公告)号：EP2858957A4

公开(公告)日：2016-03-23

申请号：EP13796697

申请日：2013-05-29

Applicant: CORNING INC

Inventor： GEREMEW MULUWORK ,  HAWTOF DANIEL WARREN ,  NONI JR DOUGLAS MILES

IPC: C03B5/235 ,  C03B5/08 ,  C03B18/02

CPC classification number: F23D14/583 ,  C03B19/1423 ,  C03B2207/02 ,  C03B2207/20 ,  C03B2207/34 ,  C03B2207/42 ,  F23D14/00 ,  F23D2900/21005 ,  Y10T428/24355

Abstract: A burner module comprising a burner gas inlet block, a lower flow plate, an upper flow plate, a burner gas flow disperser, and a burner gas discharge block. The burner gas inlet block, the burner gas flow disperser, and the burner gas discharge block each comprising a plurality of channels separated by partitions. The partitions of the burner gas flow disperser and the burner gas discharge block comprising a knife edge. The upper flow plate and the lower flow plate each comprising a plurality of pressure holes in fluid communication with the plurality of channels. Additionally, the method of forming a glass sheet or ribbon using the disclosed burner module and a glass sheet or ribbon formed using the method.