Patents by Inventor Ralph T. Middleton

Ralph T. Middleton 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).

  • Sign post comprising composite material
    Patent number: 8341860
    Abstract: The present invention provides a tubular support (12) comprising a composite layer of resin and longitudinal arranged first fibers (66), said tubular support (12) further comprising longitudinal arranged second fibers (68) that are concentrated in discrete domains along the circumference of the tubular support, said second fibers having a Tensile modulus that is higher than the Tensile modulus of said first fibers.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: January 1, 2013
    Assignee: Frangible Safety Posts Limited
    Inventors: Gerard S. Boyce, Nigel A. Finney, Ralph T. Middleton, Nicholas L. Weatherby