Patents by Inventor Roger L. Lewis

Roger L. Lewis 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 device and a method for a road planer and the like
    Patent number: 4744604
    Abstract: A vibration damper for a road planer and the like with a main frame and a sub-frame movably connected thereto. A prime mover and a tool are mounted on the sub-frame, which includes frame members forming compartments adapted to receive lead shot particles therein. The particles absorb vibrational energy from the prime mover and the tool. A method of damping vibration is disclosed wherein vibrational energy is transmitted to the lead shot particles which vibrate and generate heat. The heat is dissipated through the frame members to the atmosphere.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: May 17, 1988
    Assignee: Federal-Mogul Corporation
    Inventors: Roger L. Lewis, Richard S. Norland, Leon D. Jones