Patents by Inventor Charles C. Wynn

Charles C. Wynn 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: 4349305
    Abstract: A lifting and dumping apparatus for use with a front end loading refuse vehicle. The apparatus includes a pair of lift arms which extend forward of the cab of the vehicle and which are pivotally secured to the sides of the vehicle. A rotatable front tube extends between the front ends of the left arms, and a pair of fork arms are pivotally connected to the front tube. The fork arms can pivot between an open position and a closed position. In the open position the fork arms extend forward of the lift arms, generally perpendicular to the front tube for engagement with a detachable refuse container, and in the closed position the fork arms are generally parallel to the front tube so that their projection forward of the left arms is eliminated. Hydraulic cylinders are provided for pivoting the fork arms, and a hydraulic circuit is provided with a sequencing valve to close the fork arms one at a time.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: September 14, 1982
    Assignee: Dempster Systems Inc.
    Inventors: Charles C. Wynn, Donald J. Hopkins