Patents by Inventor Stanely R. Borkgren

Stanely R. Borkgren 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).

  • Patent number: 8468655
    Abstract: A hinge assembly with two pivot axes is provided for a folding frame. One pivot axis, a working pivot axis, allows the outer wing frame to rotate while in operation to follow the ground contours by rotating relative to the adjacent frame section without creating any interference between adjacent tools mounted to the frame sections. The second pivot axis is a folding pivot axis above the frame and about which the outer wing frame rotates to fold the outer wing into the transport position. This hinge assembly when used on a five section implement frame allows the outer wing frame to both follow the ground contour and to fold into an acceptable transport position.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: June 25, 2013
    Assignee: Deere & Company
    Inventors: Stanely R. Borkgren, William D. Graham, Xinzhan Z. Yang