Patents by Inventor Hans J. Pieperhoff

Hans J. Pieperhoff 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: 5062759
    Abstract: A safety circuit arrangement for use with lifting/tilting devices for emptying garbage containers into garbage trucks. To prevent the manipulation of switches such as flap and acknowledgement signal switches provided on such lifting/tilting devices, for the safety of the operating personnel, these switches are connected to a current flow monitor 25 which is electrically connected to an automatic control unit 30 for the automatic emptying of the garbage containers. This current flow monitor 25 transmits a "clear" signal to the automatic control unit 30 only if the flap and acknowledgement switches 16 and 11 are in their intended positions. In addition, other safety switches may be provided, such as lower and upper reference switches 9 and 32, respectively and a barrier switch 13.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: November 5, 1991
    Assignee: Zoller-Kipper GmbH
    Inventor: Hans J. Pieperhoff
  • Patent number: 4886411
    Abstract: The pour-in opening of the collection container of a garbage truck is provided with a shield which envelops the entire working area of the lifting/tilting or tilting device in the manner of a hood. Wall parts of the shield are movable singly or together and are moved into an operating position or a rest position by suitable power devices.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: December 12, 1989
    Assignee: Zoller-Kipper GmbH
    Inventors: Hans J. Pieperhoff, Karl-Heinz Droge