Patents by Inventor Jurgen Zugner

Jurgen Zugner 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: 6095177
    Abstract: A precontrolled 3-way pressure control valve with a main valve having, in a valve housing, a valve bore with first, second and third control chambers connected with pressure connection, tank connection, and control connection, respectively, a control piston displaceable in a valve bore, wherein the third control chamber is connectable with the first or second control chambers, and subjectable in opposite direction to pressures from the control connection and pressure setting of a pilot valve. With deviation of pressure applied in control connection from pressure setting of the pilot valve, an imbalance of forces develops in the valve. Oblong holes, distributed over circumference of hollow control piston pass through the wall, are located in the wall radially delimiting its hollow chamber, which holes are longer than clearances between two control chambers.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: August 1, 2000
    Assignee: Mannesmann Rexroth AG
    Inventors: Gotz-Dieter Machat, Karl-Josef Meyer, Wilfried Stroka, Jurgen Zugner