Patents by Inventor William L. Carranza

William L. Carranza 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).

  • Method of making rope
    Patent number: 4166357
    Abstract: Filaments are extruded from polyolefin. A plurality of filaments are formed into a strand by twisting. The twisted strand is is twisted with other strands to form a rope which retains its tensile strength and reduces elongation. The filaments are made into strands before the heat introduced during extrusion has completely dissipated.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: September 4, 1979
    Assignee: Sunshine Cordage Corporation
    Inventor: William L. Carranza