Patents by Inventor Brian David Mongold

Brian David Mongold 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).

  • Helical coil spring damper assembly
    Patent number: 6789790
    Abstract: A device for reducing the resonant vibrations of a helical valve spring of an internal combustion engine includes a member, such as a tension cable, attached between one end of the spring and a coil mid-section of the spring for limiting the movement of the coil mid-section away from the one end of the spring to about the distance between the coil mid-section and the one end of the spring when the spring is in a condition corresponding with a condition at which the spring is in static equilibrium.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: September 14, 2004
    Inventors: Frank H. Speckhart, Brian David Mongold, Hyunjun Chun, Von M Tyler, Jr.
  • Helical coil spring damper assembly
    Publication number: 20030230836
    Abstract: A device for reducing the resonant vibrations of a helical valve spring of an internal combustion engine includes a member, such as a tension cable, attached between one end of the spring and a coil mid-section of the spring for limiting the movement of the coil mid-section away from the one end of the spring to about the distance between the coil mid-section and the one end of the spring when the spring is in a condition corresponding with a condition at which the spring is in static equilibrium.
    Type: Application
    Filed: June 18, 2002
    Publication date: December 18, 2003
    Inventors: Frank H. Speckhart, Brian David Mongold, Hyunjun Chun, Von M. Tyler