Patents by Inventor Harold E. Dotson

Harold E. Dotson 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 edge sealing of foam boards
    Patent number: 9302425
    Abstract: A method and apparatus for sealing a cut edge of a foam board is disclosed. The foam board has a top surface, a bottom surface, a first cut edge and a second cut edge. Each cut edge extends between the top and bottom surface. The method includes heating of at least one of cut edges to raise the surface to a first temperature, applying pressure to the at least one of the cut edges by a pressure source at a first pressure, and cooling the at least one of the cut edges to a second temperature. The first temperature is above the foam glass transition temperature and the second temperature is below the glass transition temperature.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: April 5, 2016
    Assignee: Simonton Building Products LLC
    Inventors: Harold E. Dotson, Charles H. Detamore, Clarence B. White, Charles E. Scott