Patents by Inventor Alf G. R. Wincent

Alf G. R. Wincent 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).

  • Four-wheel-drive articulated frame steering vehicle
    Patent number: 4135592
    Abstract: The disclosure relates to a four-wheel drive articulated frame steering vehicle for material handling in difficult terrain, the vehicle having a control bar assembly which projects ahead of the vehicle and is connected to a valve system for forward and reverse movement and to a valve system for turning to the left and right.
    Type: Grant
    Filed: June 15, 1977
    Date of Patent: January 23, 1979
    Assignee: Trelleborgs Gummifabriks Aktiebolag
    Inventor: Alf G. R. Wincent