Patents by Inventor Thomas C. Pursley

Thomas C. Pursley 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).

  • Continuous filament yarn for trackless carpet
    Patent number: 5058371
    Abstract: Yarn suitable for use in making cut pile trackless carpet is disclosed. The yarn is composed of two continuous filament singles yarn cabled together with from 3.5 to 5.0 turns per inch (2.54 cm) of twist. Each singles yarn is tangled and contains substantially no twist. The yarn is characterized, in that, each singles yarn comprises, in addition to crimped carpet filaments, filaments having no crimp and a high degree of shrinkage. The yarn develops texture during conventional heatsetting of the yarn without the use of mechanical crimping.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: October 22, 1991
    Assignee: Monsanto Company
    Inventors: Jing-peir Yu, Thomas C. Pursley, John H. Southern