Patents by Inventor Vernon R. Krein

Vernon R. Krein 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: 4090624
    Abstract: Apparatus for handling, transporting, and unrolling large cylindrical bales of hay, including a frame mountable in the box of a pickup truck or on its own wheels. Hydraulic controls and actuators are provided for pivoting a bale fork about a horizontal axis, and for spreading and drawing together a pair of arms making up the fork to grasp and release the bale axially. A lost motion mechanism is provided to permit the fork to move vertically, as a bale unrolls, although the hydraulically actuated portion of the fork remains motionless.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: May 23, 1978
    Inventors: Vernon R. Krein, Lawrence D. Elmer