Patents by Inventor William H. Herold

William H. Herold 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: 4217076
    Abstract: A load-lifting mechanism at the front of a lift truck carries an upright boom with a pair of parallel spaced-apart forwardly cantilevered boom portions rotatably supporting a horizontal pivot tube between their forward ends. A vertical pivot shaft rotatably carried by the pivot tube suspends a grapple beneath the cantilevered boom portions. The grapple includes a yoke mounting and a pair of grapple arms opened and closed by single or dual hydraulic cylinders. A mechanical link interconnects the grapple arms so that they open and close together and to the same extent. A pair of fluid cylinders on the cantilever boom portions pivot the pivot tube to swing the shaft and grapple fore and aft. A rotation mechanism between the cantilever boom portions and their cylinders rotates the pivot shaft and connected grapple about the axis of the shaft.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: August 12, 1980
    Assignee: Raygo Wagner, Inc.
    Inventors: James J. Robnett, William H. Herold