Patents by Inventor Douglas Gregg Neilson

Douglas Gregg Neilson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180304304
    Abstract: A method of applying a coating liquid to an optical fiber is described. An optical fiber is drawn through a guide die into a pressurized coating chamber and through the pressurized coating chamber to a sizing die. The pressurized coating chamber contains a coating liquid. The method includes directing coating liquid in a direction transverse to the processing pathway of the optical fiber in the pressurized coating chamber. The transverse flow of coating liquid counteracts detrimental effects associated with gyres that form in the pressurized coating chamber during the draw process. Benefits of the transverse flow include removal of bubbles, reduction in the temperature of the gyre, improved wetting, homogenization of the properties of the coating liquid in the pressurized coating chamber, and stabilization of the meniscus.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 25, 2018
    Inventors: Robert Clark Moore, Douglas Gregg Neilson, Johnnie Edward Watson
  • Patent number: 10036108
    Abstract: One embodiment of the disclosure relates to a fiber coating apparatus having a fiber entrance opening, a conical section with walls tapered at half angles between 2 and 25° and height (also referred to as length herein) L1 between 0.25 mm and 2 mm, and a cylindrical land portion of diameter d2 between 0.1 and 0.5 mm and height (length) L2 between 0.05 and 1.25 mm.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: July 31, 2018
    Assignee: Corning Incorporated
    Inventors: Robert Clark Moore, Douglas Gregg Neilson
  • Publication number: 20180208504
    Abstract: An optical fiber coating apparatus that provides increased gyre stability and reduced gyre strength, thereby providing a more reliable coating application process during fiber drawing includes a cone-only coating die having a conical entrance portion with a tapered wall angled at a half angle ?, wherein 2°???25°, and a cone height L1 less than 2.2 mm, and a cylindrical portion having an inner diameter of d2, wherein 0.1 mm?d2?0.5 mm and a cylindrical height of L2, wherein 0.05 mm?L2?1.
    Type: Application
    Filed: January 11, 2018
    Publication date: July 26, 2018
    Inventors: Sumitava De, Robert Clark Moore, Douglas Gregg Neilson, Pushkar Tandon
  • Patent number: 9440873
    Abstract: In one embodiment, an optical fiber cooling system includes a first cooling tube oriented substantially in parallel with and spaced apart from a second cooling tube such that an optical fiber pathway is positioned between the first cooling tube and the second cooling tube. The first cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the first cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the second cooling tube. The second cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the second cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the first cooling tube.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: September 13, 2016
    Assignee: Corning Incorporated
    Inventors: Gary Alan Cummings, Samir Khanna, Douglas Gregg Neilson, Thomas Andre Pedersen, Massoud Rahiminejad, Bruce Warren Reding
  • Publication number: 20150147467
    Abstract: One embodiment of the disclosure relates to a fiber coating apparatus having a fiber entrance opening, a conical section with walls tapered at half angles between 2 and 25° and height (also referred to as length herein) L1 between 0.25 mm and 2 mm, and a cylindrical land portion of diameter d2 between 0.1 and 0.5 mm and height (length) L2 between 0.05 and 1.
    Type: Application
    Filed: October 23, 2014
    Publication date: May 28, 2015
    Inventors: Robert Clark Moore, Douglas Gregg Neilson
  • Publication number: 20130312461
    Abstract: In one embodiment, an optical fiber cooling system includes a first cooling tube oriented substantially in parallel with and spaced apart from a second cooling tube such that an optical fiber pathway is positioned between the first cooling tube and the second cooling tube. The first cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the first cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the second cooling tube. The second cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the second cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the first cooling tube.
    Type: Application
    Filed: August 6, 2013
    Publication date: November 28, 2013
    Applicant: Corning Incorporated
    Inventors: Gary Alan Cummings, Samir Khanna, Douglas Gregg Neilson, Thomas Andre Pedersen, Massoud Rahiminejad, Bruce Warren Reding
  • Patent number: 8578737
    Abstract: This disclosure relates to methods and apparatus for controlling glass flow in, for example, a downdraw glass manufacturing process (e.g., the fusion downdraw process). The methods and apparatus are particularly well-suited for use in the manufacture of glass sheets such as the glass sheets used as substrates in display devices, e.g., liquid crystal displays (LCDs).
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: November 12, 2013
    Assignee: Corning Incorporated
    Inventors: Olus Naili Boratav, Keith Raymond Gaylo, Kiat Chyai Kang, Bulent Kocatulum, Steven Michael Milillo, Douglas Gregg Neilson
  • Patent number: 8528367
    Abstract: In one embodiment, an optical fiber cooling system includes a first cooling tube oriented substantially in parallel with and spaced apart from a second cooling tube such that an optical fiber pathway is positioned between the first cooling tube and the second cooling tube. The first cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the first cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the second cooling tube. The second cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the second cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the first cooling tube.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: September 10, 2013
    Assignee: Corning Incorporated
    Inventors: Gary Alan Cummings, Samir Khanna, Douglas Gregg Neilson, Thomas A Pedersen, Massoud Rahiminejad, Bruce Warren Reding
  • Publication number: 20130133372
    Abstract: This disclosure relates to methods and apparatus for controlling glass flow in, for example, a downdraw glass manufacturing process (e.g., the fusion downdraw process). The methods and apparatus are particularly well-suited for use in the manufacture of glass sheets such as the glass sheets used as substrates in display devices, e.g., liquid crystal displays (LCDs).
    Type: Application
    Filed: January 23, 2013
    Publication date: May 30, 2013
    Inventors: Olus Naili Boratav, Keith Raymond Gaylo, Kiat Chyai Kang, Bulent Kocatulum, Steven Michael Milillo, Douglas Gregg Neilson
  • Publication number: 20120260697
    Abstract: In one embodiment, an optical fiber cooling system includes a first cooling tube oriented substantially in parallel with and spaced apart from a second cooling tube such that an optical fiber pathway is positioned between the first cooling tube and the second cooling tube. The first cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the first cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the second cooling tube. The second cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the second cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the first cooling tube.
    Type: Application
    Filed: June 25, 2012
    Publication date: October 18, 2012
    Inventors: Gary Alan Cummings, Samir Khanna, Douglas Gregg Neilson, Thomas A. Pedersen, Massoud Rahiminejad, Bruce Warren Reding
  • Patent number: 8230704
    Abstract: In one embodiment, an optical fiber cooling system includes a first cooling tube oriented substantially in parallel with and spaced apart from a second cooling tube such that an optical fiber pathway is positioned between the first cooling tube and the second cooling tube. The first cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the first cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the second cooling tube. The second cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the second cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the first cooling tube.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: July 31, 2012
    Assignee: Corning Incorporated
    Inventors: Gary Alan Cummings, Samir Khanna, Douglas Gregg Neilson, Thomas A Pedersen, Massoud Rahiminejad, Bruce Warren Reding
  • Patent number: 7984625
    Abstract: Methods of fabricating glass sheets (13) are provided in which the sheets are cut from a glass ribbon (15) composed of a glass having a setting zone temperature range (SZTR). As the glass is drawn, it passes through the SZTR (31) and an across-the-ribbon temperature distribution is produced at least one longitudinal position along the ribbon to compensate for in-plane stress induced in the sheets (13) when flattened. Through such thermal compensation, glass sheets (13) are produced which exhibit controlled levels of distortion when cut into sub-pieces and thus are suitable for use as substrates in the manufacture of, for example, flat panel displays, e.g., LCD displays.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: July 26, 2011
    Assignee: Corning Incorporated
    Inventors: Shawn Rachelle Markham, Gautam Meda, Douglas Gregg Neilson, Daniel Arthur Nolet, Robert A Novak
  • Publication number: 20110094717
    Abstract: In one embodiment, an optical fiber cooling system includes a first cooling tube oriented substantially in parallel with and spaced apart from a second cooling tube such that an optical fiber pathway is positioned between the first cooling tube and the second cooling tube. The first cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the first cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the second cooling tube. The second cooling tube includes a plurality of cooling fluid outlets positioned along an axial length of the second cooling tube which are oriented to direct a flow of cooling fluid across the optical fiber pathway towards the first cooling tube.
    Type: Application
    Filed: October 25, 2010
    Publication date: April 28, 2011
    Inventors: Gary Alan Cummings, Samir Khanna, Douglas Gregg Neilson, Thomas A. Pedersen, Massoud Rahiminejad, Bruce Warren Reding
  • Publication number: 20080066498
    Abstract: Methods of fabricating glass sheets (13) are provided in which the sheets are cut from a glass ribbon (15) composed of a glass having a setting zone temperature range (SZTR). As the glass is drawn, it passes through the SZTR (31) and an across-the-ribbon temperature distribution is produced at least one longitudinal position along the ribbon to compensate for in-plane stress induced in the sheets (13) when flattened. Through such thermal compensation, glass sheets (13) are produced which exhibit controlled levels of distortion when cut into sub-pieces and thus are suitable for use as substrates in the manufacture of, for example, flat panel displays, e.g., LCD displays.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 20, 2008
    Inventors: Shawn Rachelle Markham, Gautam Meda, Douglas Gregg Neilson, Daniel Arthur Nolet, Robert A. Novak