Patents by Inventor Frederick A. Sutton

Frederick A. Sutton 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).

  • Spring for floors and the like
    Patent number: 4869479
    Abstract: The spring is one piece and elliptical with the working material concentrated nearer the ends than the middle section, leaving the middle section available for deflection limiting stops and for fastening holes. A preferred material is acetal plastic. The spring can be machined, molded or cut from extrusions in widths to suit use requirements. The spring is attached to mounting structure by a fastener which passes through a hole in one leaf and is seated on the other.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: September 26, 1989
    Inventors: Richard C. Colonel, Devere V. Lindh, Frederick A. Sutton