Patents by Inventor Tong Y. Yi

Tong Y. Yi 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).

  • Axle suspension system
    Patent number: 7510198
    Abstract: A suspension system for a rigid beam tractor axle in which the axle is connected to the chassis by two orthogonally oriented pivot points and axle movement is controlled by hydraulic cylinders to improve the ride and handling characteristics of the tractor.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: March 31, 2009
    Assignee: CNH America LLC
    Inventors: David T. Rach, Loreto Panettone, Robert C. Prasse, Tong Y. Yi
  • AXLE SUSPENSION SYSTEM
    Publication number: 20080231012
    Abstract: A suspension system for a rigid beam tractor axle in which the axle is connected to the chassis by two orthogonally oriented pivot points and axle movement is controlled by hydraulic cylinders to improve the ride and handling characteristics of the tractor.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 25, 2008
    Inventors: David T. Rach, Loreto Panettone, Robert C. Prasse, Tong Y. Yi