Patents by Inventor Paul B. Groothius

Paul B. Groothius 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).

  • Hydraulically actuated planetary wheel drive
    Patent number: 4611506
    Abstract: A drive mechanism located within a vehicle wheel at the outer end of a drive axle. The mechanism is operated by the operator of the vehicle by remote control from his normal operating position. The mechanism may be connected for the usual gear reduction drive or, at the option of the operator, moved to a second position.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: September 16, 1986
    Assignee: Clark Equipment Company
    Inventor: Paul B. Groothius