Patents by Inventor W. Welch McCollough

W. Welch McCollough 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).

  • Optical tube assembly having a dry insert and methods of making the same
    Patent number: 7747117
    Abstract: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. In one embodiment, the dry insert has a first layer and a second layer. The first layer is a polyurethane foam and the second layer is a water-swellable layer, wherein the dry insert is disposed within the tube and generally surrounds the at least one optical waveguide.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: June 29, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Jody L. Greenwood, Douglas S. Hedrick, Jason C. Lail, W. Welch McCollough, Kenneth D. Temple, Jr.
  • Optical Fiber Assemblies Having One or More Water-Swellable Members
    Publication number: 20090180744
    Abstract: Disclosed are fiber optic assemblies having at least one optical fiber and at least one water-swellable yarn disposed within a tube that preserves optical performance. Optical performance is preserved by selecting water-swellable yarns for the fiber optic assemblies that are softer and loftier since at least some of the filaments have a textured characteristic. In one embodiment, the water-swellable yarn has a stretch ratio of about 2 or more, where the stretch ratio is defined as the nominal unstretched diameter divided by the nominal stretched diameter. In another embodiment, the water-swellable yarn has a textured elongation factor of about 2% or more. Additionally, embodiments may position the optical fibers radially outward of the water swellable yarn(s), thereby further preserving optical performance.
    Type: Application
    Filed: February 18, 2009
    Publication date: July 16, 2009
    Inventors: Anne G. Bringuier, George C. Abernathy, William C. Hurley, David A. Seddon, W. Welch McCollough
  • Optical tube assembly having a dry insert and methods of making the same
    Publication number: 20090067791
    Abstract: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. In one embodiment, the dry insert has a first layer and a second layer. The first layer is a polyurethane foam and the second layer is a water-swellable layer, wherein the dry insert is disposed within the tube and generally surrounds the at least one optical waveguide.
    Type: Application
    Filed: November 13, 2007
    Publication date: March 12, 2009
    Inventors: Jody L. Greenwood, Douglas S. Hedrick, Jason C. Lail, W. Welch McCollough, Kenneth D. Temple, JR.
  • Optical tube assembly having a dry insert and methods of making the same
    Patent number: 7336873
    Abstract: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. In one embodiment, the dry insert has a first layer and a second layer. The first layer is a polyurethane foam and the second layer is a water-swellable layer, wherein the dry insert is disposed within the tube and generally surrounds the at least one optical waveguide.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: February 26, 2008
    Assignee: Corning Cable Systems, LLC.
    Inventors: Jason C. Lail, Jody L. Greenwood, Douglas S. Hedrick, James L. Baucom, W. Welch McCollough, Jr., Kenneth D. Temple, Jr., Catharina L. Tedder
  • Optical tube assembly having a dry insert and methods of making the same
    Publication number: 20040120663
    Abstract: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. In one embodiment, the dry insert has a first layer and a second layer. The first layer is a polyurethane foam and the second layer is a water-swellable layer, wherein the dry insert is disposed within the tube and generally surrounds the at least one optical waveguide.
    Type: Application
    Filed: September 12, 2003
    Publication date: June 24, 2004
    Inventors: Jason C. Lail, Jody L. Greenwood, Douglas S. Hedrick, James L. Baucom, W. Welch McCollough, Kenneth D. Temple, Catharina L. Tedder