Patents by Inventor William L. Edens

William L. Edens 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).

  • Apparatus for production of free flowing polytetrafluoroethylene (PTFE) molding pellets
    Patent number: 5182119
    Abstract: An apparatus and process for the production of agglomerated pellets from a polytetrafluoroethylene (PFTE) resin powder. Such agglomerated pellets are commonly used in molding apparatus. The pellets of this invention exhibit better and more consistent flowability and higher, more consistent bulk density than those made by previously known apparatus and methods. The apparatus includes a tilted, heated polygonal tube provided at its discharge end with an apertured plate.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: January 26, 1993
    Assignee: ICI Americas, Inc.
    Inventor: William L. Edens