Patents by Inventor Ronald Dean Cornwell

Ronald Dean Cornwell 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).

  • Pre-fabricated vacuum bag and vacuum bag process to externally reinforce structural members with advanced composites
    Patent number: 5738741
    Abstract: A structural member is reinforced by applying an adhesive material between a reinforcement surface of the structural member and an adhesion surface of a support plate, positioning a vacuum assembly adjacent to an exposed surface of said support plate so as to create an inner space between an exterior surface of said vacuum assembly and said reinforcement surface, and creating a partial vacuum in said inner space so as to force said vacuum assembly and said plate towards said reinforcement surface. A prefabricated vacuum assembly is a vacuum assembly comprising a flexible porous film, a flexible non-porous film, and a flexible sheet of breather material positioned between said porous film and said non-porous film.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: April 14, 1998
    Assignee: The University of Dayton
    Inventors: Allan Stanislaus Crasto, Ronald Dean Cornwell, John Paul Mistretta, Keith Bryan Bowman, Brian Patrick Rice, James Andrew Lute