Patents by Inventor Marvin P. Perelli

Marvin P. Perelli 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: 4328869
    Abstract: An implement with a wing lift wherein the wing is displaceable from a wheel supported floating, ground working position approximately 180.degree. to a transport position where it lies inverted on the implement. The wing lift includes a pair of toggle links with one link pivotally connected to the wing hinge, a stop on the wing hinge, a lift arm pivotally connected to the implement central frame hinge structure and to the other toggle link and a hydraulic cylinder mounted on the central frame with the rod end pivotally connected to the lift arm and the other link of the toggle links. The lift arm also has a roller for contact by the wing hinge ramp. The toggle link construction allows the wing to float upwardly and downwardly in the working position without affecting the cylinder. The toggle links, upon abutting the stop, raise the wing when the cylinder is retracted until the links break wherein the roller engages the wing hinge ramp to support the wing to and in the inverted position without wing fall.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: May 11, 1982
    Assignee: International Harvester Company
    Inventor: Marvin P. Perelli