Patents by Inventor Ernest A. Toon

Ernest A. Toon 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).

  • Precision control of the thickness of heat-softenable material
    Patent number: 4792426
    Abstract: A process for precisely controlling the thickness of a heat-softenable sheet material (52) comprising heating the material to bring it to a softened condition, compressing the material while in the softened condition to the desired thickness or somewhat less and then cooling the material to a temperature below its softening point so that it sets while precisely maintained at the desired thickness. The material is cooled by passing it between substantially parallel cooling plate (32,34) rigidly spaced with a separation equal to the desired thickness of the material.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: December 20, 1988
    Assignee: USM Corporation
    Inventors: Anthony T. Greatorex, Joseph Robbins, Ernest A. Toon, David A. Thompson