Patents by Inventor Gerald Renger

Gerald Renger 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).

  • Variable capacity vane pump
    Patent number: 5399077
    Abstract: The invention relates to a vane pump, the volumetric delivery of which can be regulated by varying the axial width of the pump working chambers. The vanes are carried in an axially fixedly disposed vane-carrier which rotates with the rotor. An axial slide engages axial ends of the respective individual vanes to axially movably adjust the vanes and therewith the axial length of the pump working chambers.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: March 21, 1995
    Assignee: Mercedes-Benz Ag
    Inventors: Gerald Renger, Arno Roehringer