Patents by Inventor Otto Hutka

Otto Hutka 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).

  • Pothole protection mechanism for a lifting device
    Patent number: 5890737
    Abstract: A mechanism for preventing tipping of a lifting device having a main frame supported by a plurality of ground engaging support elements and a lifting element raisable and lowerable with respect to the main frame, the mechanism comprising a subframe mounted on the main frame and extending thereunder and intermediately disposed between all of the support members, and a parallel linkage mechanism for raising and lowering the subframe with respect to the ground in response to the lowering and raising of the lifting element respectively.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: April 6, 1999
    Assignee: Skyjack, Inc
    Inventor: Otto Hutka