Patents by Inventor Michael C. Duenow

Michael C. Duenow 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: 4367062
    Abstract: A device for attachment to the three point hitch of a tractor to handle large cylindrical hay bales. The device includes a pair of tines for piercing one side of the bale and an elevated pivot arm which extends over the bale and has a hook on one end for piercing the opposite side of the bale. A tension spring urges the arm in a direction to pinch the bale between the tines and the hooked end of the arm. The bale is raised for transport when the lift arms of the three point tractor hitch are raised.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: January 4, 1983
    Inventor: Michael C. Duenow