Patents by Inventor Dieter Schufer

Dieter Schufer 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).

  • Folding hand truck
    Patent number: 4679817
    Abstract: A folding hand truck with a four-part handle shaft 1, in which a bottom part 6 and a central part 8 are connected by an articulation 7, while a locking part 9, to which a handle part 11 is articulated by a multiple articulation 10 is guided telescopically in these two parts, so that in the telescoped state of the handle part the multiple articulation assumes a position above the articulation (FIG. 1).
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: July 14, 1987
    Assignee: Leifheit AG
    Inventor: Dieter Schufer