Patents by Inventor Thomas Larson Nelson

Thomas Larson Nelson 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).

  • Patent number: 4059873
    Abstract: A twist-free continuous filament heather yarn of reduced streakiness and chevroning and muter appearance of the colors of the yarn making up the heather yarn when formed into a fabric is prepared by tensioning a plurality of twist-free crimped continuous filament yarns having a different color and/or dye receptivity in order to remove intra-yarn entanglement, passing the tensioned yarns side-by-side into a jet intermingling zone at a slower withdrawal rate from said zone. The heather yarn is characterized by substantially no twist between the yarns making up the heather yarn and by yarn-to-yarn randomly intermingled filaments forming blended areas of random length of filaments along the heather yarn randomly interspersed between unblended areas of random length along the yarn. The heather yarn is incorporated into a pile fabric.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: November 29, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas Larson Nelson