Patents by Inventor Donald W. Gillespie

Donald W. Gillespie 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).

  • Synthetic yarn bulking jet apparatus
    Patent number: 5216791
    Abstract: Apparatus is disclosed to prevent yarn from melting when stopped in a high temperature fluid texturing jet. A heat sink is attached to the jet body and thermally insulated from the conduit supplying the high temperature fluid to the jet.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: June 8, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Donald W. Gillespie, Jon O. Stanley