Patents by Inventor Joni A. Roberts

Joni A. Roberts 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 making an insulated transmission medium
    Patent number: 5024864
    Abstract: Methods and apparatus are provided for applying a colorant material to the surface of a plastic insulation material which has been applied to an elongated material such as a metallic conductor (22) or an optical fiber which is being moved at any of a wide range of speeds along a path of travel. The coolant material is applied by nozzles which are staggered along the path of travel and which direct the colorant into engagement with the plastic insulation material at different radial directions. A first plurality of nozzles (46--46) each cause the colorant to be in a spray pattern (45) which is in the area of a plane. Advantageously, those nozzles cooperate to stabilize the conductor and prevent undulations thereof as the conductor is moved along its path of travel. A second plurality of nozzles (50--50) cause the colorant to be in a solid conical pattern (53).
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: June 18, 1991
    Assignee: AT&T Bell Laboratories
    Inventors: Larry L. Bleich, Joni A. Roberts, Stephen T. Zerbs
  • Methods of and apparatus for applying a coating material to elongated material
    Patent number: 4877645
    Abstract: Methods and apparatus are provided for applying a colorant material to the surface of a plastic insulation material which has been applied to an elongated material such as a metallic conductor (22) or an optical fiber which is being moved at any of a wide range of speeds along a path of travel. The colorant material is applied by nozzles which are staggered along the path of travel and which direct the colorant into engagement with the plastic insulation material at different radial directions. A first plurality of nozzles (46--46) each cause the colorant to be in a spray pattern (45) which is in the area of a plane. Advantageously, those nozzles cooperate to stabilize the conductor and prevent undulations thereof as the conductor is moved along its path of travel. A second plurality of nozzles (50--50) cause the colorant to be in a solid conical pattern (53).
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: October 31, 1989
    Assignee: American Telephone & Telegraph AT&T Technologies, Inc.
    Inventors: Larry L. Bleich, Joni A. Roberts, Stephen T. Zerbs