Patents by Inventor A. Dahlgren Vaughan

A. Dahlgren Vaughan 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).

  • Inert atmosphere cooler for optical fibers
    Patent number: 4838918
    Abstract: In the manufacture of optical fibers, at least a portion of a preform of optical glass is heated into a molten state and drawn to create an optical fiber of the desired diameter. To cool the fiber during the drawing process and prior to coating thereof, the invention contemplates providing a cooling device with a laminar flow of inert gas therein to surround and cool the fiber.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: June 13, 1989
    Assignee: Alcatel NA
    Inventors: A. Dahlgren Vaughan, Dipak R. Biswas
  • Optical fiber with single ultraviolet cured coating
    Patent number: 4682850
    Abstract: An optical fiber coated with a single ultraviolet cured resin wherein the attenuation losses are less than 0.5 decibels/kilometer. The resin has a tensile modulus of about 7,800 psi. This cable is particularly useful in loosely wrapped cable structures such as open channel or loose tube cables.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: July 28, 1987
    Assignee: ITT Corporation
    Inventors: John S. White, A. Dahlgren Vaughan, Francis I. Akers