Patents by Inventor George W. Hammond

George W. Hammond 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).

  • Sound deadening
    Patent number: 4315971
    Abstract: A sound deadening coating is provided on an article, such as an engine cover, by applying a polysulphide, silicone or polyurethane rubber layer to the surface of the article and applying a layer of zinc, aluminium or ferrous metal or their alloys to the rubber layer. Preferably, polysulphide rubber and zinc metal are used. The metal or alloy may be applied to the rubber layer when the latter is only partly cured. Preferably, the rubber and metal layers are sprayed.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: February 16, 1982
    Assignee: Massey-Ferguson Services N.V.
    Inventors: Peter A. J. Taylor, George W. Hammond