Patents by Inventor Frank J. Murray

Frank J. Murray 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).

  • Zero pressure device such as tires or run-flat rings
    Patent number: 4125660
    Abstract: A zero pressure device is composed of either a microcellular or homogeneous polyurethane made by reacting an organic polyisocyanate with at least three polyols, a monomeric polyol of 2 to 3 hydroxyls having a molecular weight of less than 250, a polyester polyol of 2 to 3 hydroxyls having a molecular weight of 800 to 3000 and a polyether polyol of 2 to 3 hydroxyls having a molecular weight of 4 to 7000. When the zero pressured device is a run-flat ring for a tire-wheel assembly, it has an average density of 60 to 65 pounds per cubic foot and 30 to 42 pounds per cubic foot when it is a tire.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: November 14, 1978
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: John R. White, Frank J. Murray, Cletus A. Becht