Patents by Inventor James V. Smith, Jr.

James V. Smith, Jr. 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).

  • Methods of and apparatus for coating a lightguide fiber
    Patent number: 4613521
    Abstract: A lightguide fiber (21) which has been drawn from a preform in a furnace (26) and which has a relatively high temperature is cooled prior to its movement through an apparatus (41) which applies a coating to its outer surface. The fiber is cooled by moving it through a liquid material (42) in a reservoir (40) which is interposed between the furnace and the coating apparatus. The liquid material in the reservoir (40) is the same as the coating material contained in the apparatus that is used subsequently to coat the fiber.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: September 23, 1986
    Assignee: At&T Technologies, Inc.
    Inventor: James V. Smith, Jr.
  • Apparatus for coating a lightguide fiber
    Patent number: 4583485
    Abstract: A lightguide fiber (21) which has been drawn from a preform in a furnace (26) and which has a relatively high temperature is cooled prior to its movement through an apparatus (41) which applies a coating to its outer surface. The fiber is cooled by moving it through a liquid material (42) in a reservoir (40) which is interposed between the furnace and the coating apparatus. The liquid material in the reservoir (40) is the same as the coating material contained in the apparatus that is used subsequently to coat the fiber.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: April 22, 1986
    Assignee: AT&T Technologies, Inc.
    Inventor: James V. Smith, Jr.
  • Methods of and apparatus for coating lightguide fiber
    Patent number: 4409263
    Abstract: A coating material is applied to drawn lightguide fiber in a manner which substantially prevents the inclusion of bubbles and which causes the fiber to be disposed substantially concentrically within the coating layer. The lightguide fiber is advanced through a continuum of coating material, which extends from a free surface of a reservoir and through first and second dies that are arranged in tandem, at a velocity which causes air to be entrained in the coating material. A pressure gradient is established between portions of the first die adjacent to its exit orifice. The first die communicates with the reservoir and is spaced from the second die to provide a chamber which communicates with a pressurized supply of the coating material.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: October 11, 1983
    Assignees: Western Electric Co., Inc., Bell Telephone Laboratories, Inc.
    Inventors: Charles J. Aloisio, Jr., Terrence A. Lenahan, James V. Smith, Jr., Carl R. Taylor