Patents by Inventor Gary F. Nunn

Gary F. Nunn 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).

  • Apparatus for tensioning and forwarding tow
    Patent number: 4554716
    Abstract: The improvement in a tow delivery apparatus downstream of a crimper of a jet device mounted in the laydown spout of the apparatus in the path of the tow. The jet is operated to tension and forward tow through the spout only during startup of the crimper when operating speed is reached at startup the jet is inactivated.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: November 26, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gary F. Nunn
  • Vacuum slide for crimped tow delivery
    Patent number: H20
    Abstract: The improvement in a tow delivery apparatus downstream of a horizontally oriented stuffing box crimper of an unenclosed smoothly contoured curved perforated surface tangent to and sloping gradually downward away from the outlet end of the crimper to a moving conveyor belt. A vacuum is applied to the perforations in the curved surface at such a level so that the crimped tow is pushed down the curved surface by the tow exiting the crimper.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: February 4, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gary F. Nunn, Thomas H. Watson, James L. Woodley, Jr.