Patents by Inventor William D. Zopf

William D. Zopf 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: 5607277
    Abstract: An intermediate container which may be attached to a lift assembly of a refuse vehicle, and having a remotely controlled motor powered assembly attached thereto for emptying refuse containers. The motor powered assembly includes an extendible arm coupled to the intermediate container, a dump assembly coupled to the extendible arm, and an engagement assembly coupled to the dump assembly.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: March 4, 1997
    Assignee: The Heil Co.
    Inventor: William D. Zopf
  • Patent number: 5484245
    Abstract: An intermediate container which may be attached to a lift assembly of a refuse collection vehicle, and having a side arm assembly attached thereto for emptying refuse containers. The side arm assembly includes an extendable arm coupled to the intermediate container, terminating in a tilt assembly and a grabber assembly. The grabber assembly engages a refuse container, which is drawn to the intermediate container where the tilt assembly empties the refuse container.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: January 16, 1996
    Assignee: Heil
    Inventor: William D. Zopf