Patents by Inventor Johannes L. Gaasenbeek

Johannes L. Gaasenbeek 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).

  • Self-propelled vehicle
    Patent number: 4226140
    Abstract: A skid-steerable self-propelled vehicle has a simple differential connected to the engine, and a variable speed drive connected direct across differential-speed elements of the differential. The vehicle can be steered using a device for adjusting the drive ratio of the variable speed drive.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: October 7, 1980
    Inventor: Johannes L. Gaasenbeek