Patents by Inventor Lance E. Nunley

Lance E. Nunley 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).

  • Spinneret for producing circular cross section yarn and process for making the same
    Patent number: 7165963
    Abstract: A melt extrusion spinneret plate has at least one non-circular capillary orifice for producing at least a single filament of circular cross-sectional shape. This non-circular cross-sectional shape of the extrusion capillary, when used to extrude filaments of circular cross-sectional shape, extends the spinneret wipe life by lessening the amount of thermal deposits, which extends the time between wipe cycles. As a result of increased wipe life, the productivity of the process is increased.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: January 23, 2007
    Assignee: Invista North America S.a.r.l.
    Inventors: Lance E. Nunley, Ronald E. Steele