Patents by Inventor Stéphane Gerbier

Stéphane Gerbier 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).

  • Pump assembly for hand fork-lift truck
    Patent number: 7401467
    Abstract: Pump assembly for the lift cylinder of a hand fork-lift truck includes a piston pump activated by a bar of a hand fork-lift truck and has a piston chamber and an annulus collector. A three stage control valve connects the lift cylinder with a tank in the lowered setting and connects the piston chamber with the tank in a neutral setting and in a pump setting, connects the piston chamber with the lift cylinder through a first check-valve, with the tank through a second check-valve, a third check-valve between the piston chamber and the annulus collector open to the piston chamber, and a reversing valve between the piston chamber and the annulus collector.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: July 22, 2008
    Assignee: Jungheinrich Aktiengesellschaft
    Inventors: Stéphane Gerbier, Ernst-Peter Magens, Frank Maenken, Nis-Georg Nissen, Martin von Werder