Patents by Inventor Jerry W. Baumgart

Jerry W. Baumgart 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).

  • Method of and apparatus for overcladding a glass rod
    Patent number: 4820322
    Abstract: Method and apparatus are provided for overcladding a preform rod (22). The preform rod is aligned with and inserted into an overcladding tube (30). The outer diameter of the preform rod and the inner diameter of the tube are such that the clearance between the tube and the rod does not exceed a predetermined value. Successive increments of length of the tube and rod therein are subjected to a controlled zone of heat while the pressure inside the tube is maintained at a value which is substantially less than that outside the tube. This causes the tube to be collapsed onto the preform rod to provide an overclad preform and subsequently a drawn optical fiber in which the overcladding is substantially concentric with respect to the optical fiber core.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: April 11, 1989
    Assignees: American Telephone and Telegraph Company AT&T Bell Laboratories, AT&T Technologies, Inc.
    Inventors: Jerry W. Baumgart, Anthony T. D'Annessa, Franz T. Geyling, William M. Flegal, Thomas J. Miller