Patents by Inventor John Czving

John Czving 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).

  • Multi-stage spring for track tensioning system
    Publication number: 20070087876
    Abstract: A multi-stage spring for maintaining tension in a track of a tracked vehicle is provided. The multi-stage spring can urge the idler wheel in a first manner when the vehicle is accelerated or decelerated. The multi-stage spring can urge the idler wheel in a second manner when debris is caught between the track and a wheel on the vehicle. The multi-stage spring can urge the idler wheel in a third manner when the suspension of the vehicle is compressed.
    Type: Application
    Filed: March 17, 2006
    Publication date: April 19, 2007
    Inventors: Michael Ward, John Czving