Patents by Inventor Matthew S. Purdy

Matthew S. Purdy 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).

  • Twist-beam rear axle comprising an additional Watt linkage
    Patent number: 8177245
    Abstract: A suspension is provided for non-steered wheels on a motor vehicle body. The suspension includes, but is not limited to a twist-beam rear axle with a Watt linkage. A top rocker arm of the Watt linkage is mounted on the motor vehicle body. The Watt linkage prevents the motor vehicle from oversteering during cornering. The damping bushes can be disconnected in part from wheel-guiding functions as the Watt linkage performs a major part of the wheel guiding functions, which leaves some freedom for designing the characteristics so as to significantly increase motoring comfort.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: May 15, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Gerd Bitz, Werner Brinker, Dirk Ehrlich, Michael Harder, Matthew S. Purdy, Wolfgang Stoff
  • TWIST-BEAM REAR AXLE COMPRISING AN ADDITIONAL WATT LINKAGE
    Publication number: 20100052281
    Abstract: A suspension is provided for non-steered wheels on a motor vehicle body. The suspension includes, but is not limited to a twist-beam rear axle with a Watt linkage. A top rocker arm of the Watt linkage is mounted on the motor vehicle body. The Watt linkage prevents the motor vehicle from oversteering during cornering. The damping bushes can be disconnected in part from wheel-guiding functions as the Watt linkage performs a major part of the wheel guiding functions, which leaves some freedom for designing the characteristics so as to significantly increase motoring comfort.
    Type: Application
    Filed: July 20, 2007
    Publication date: March 4, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Gerd Bitz, Werner Brinker, Dirk Ehrlich, Michael Harder, Matthew S. Purdy, Wolfgang Stoff
  • Aerial work apparatus
    Patent number: 5307898
    Abstract: An improved mast assembly for an aerial work apparatus having improved stability and safety. A telescoping vertical main mast is connected to a telescoping vertical auxiliary mast.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: May 3, 1994
    Inventors: Paul J. Purdy, Matthew S. Purdy