Patents by Inventor Hans-Jurgen Hachmann

Hans-Jurgen Hachmann 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: 4893693
    Abstract: A fork truck is provided with a collision-preventing safety arrangement which initiates an emergency stopping in response to a contact with or detection of an obstacle. That safety arrangement comprises a safety device which at least adjacent to a load carrier (3) encloses the space for accommodating a picked-up load (20) on a level within the height range of a human being. That safety device is designed to permit a handling of the load (20) by means of the load carrier (3) at least in a forward direction. For that purpose the safety device may comprise a confining structure, which in its operative position encloses at least the space adjacent to the load carrier (3) and is movable out of its operative position when a load (20) is to be handled.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: January 16, 1990
    Assignee: Firma Jungheinrich Unternehmensverwaltung KG
    Inventors: Hans-Jurgen Hachmann, Siegfried Hoener