Patents by Inventor Carroll Simpson

Carroll Simpson 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 and apparatus for treating strand-like material
    Patent number: 4414756
    Abstract: An improved method and apparatus for treating strand-like material is described. The method comprises conveying loops of such strand-like material supported by conveyor means through a heating zone wherein provision is made for causing certain portions of said loop material to experience substantial peripheral sliding movement in their contact with and with respect to said conveyor means, which movement has been found to reduce irregularities in the subsequent dyeing of the strand-like material.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: November 15, 1983
    Assignee: American Hoechst Corporation
    Inventors: Carroll Simpson, Ludwig Schierl