Patents Examined by Timothy P. Williams
  • Patent number: 5821671
    Abstract: The actuating device includes a housing having at least one inlet. At least one piston slide is slidably positioned in the housing for pumping a medium from the at least one inlet to a consuming device. At least one piezo element for axially displacing the at least one piston slide is provided.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: October 13, 1998
    Assignee: Hydraulik-Ring Antriebs- und Steuerungstechnik GmbH
    Inventor: Alfred Trzmiel