Patents by Inventor Alan T. Hughes

Alan T. Hughes 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).

  • Vibration damping structure for use with a machine tool
    Patent number: 5765818
    Abstract: A vibration damping structure for a machine tool is provided. The structure includes first and second plate members disposed in an opposing spaced apart relationship with one another. A cast structure formed of a polymer concrete extends between the first and second plate members. A first structure is attached to the first plate member and extends inwardly of the cast structure. The first structure has a compression surface extending in a spaced apart relationship from the surface of the first plate member. A second structure is attached to the second plate member and extends inwardly of the cast structure.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: June 16, 1998
    Inventors: David B. Sabatino, Alan T. Hughes