Patents by Inventor Michael L. Langford

Michael L. Langford 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).

  • Hybrid Vehicle Driveline Noise Damper
    Publication number: 20090114492
    Abstract: A vehicle driveline includes a hybrid transmission, having a mass damper that provides noise and vibration damping over a broad range of frequencies. The damper provides damping at a desired frequency and all greater frequencies to act as a low pass filter for noise and vibration. A specific mass and inertia for the damper are selected to target the desired frequency range. Due to the hybrid design of the transmission the energy that is used to rotate the damper and provide the desired inertia is recovered by at least one motor/generator within the transmission during deceleration of the vehicle.
    Type: Application
    Filed: May 6, 2008
    Publication date: May 7, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Michael F. O'Leary, Michael L. Langford