Patents by Inventor Thorsten Geiger

Thorsten Geiger 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).

  • Pilot-operated pressure control valve
    Patent number: 9512930
    Abstract: A pilot-controlled pressure control valve is disclosed. The pilot-controlled pressure control valve has a pilot control stage, a spool valve, and an overload spring. The pilot control stage includes a pilot control piston which has a pilot control spring. The pilot control spring acts in a closing direction of the pilot control stage. The pilot control spring is supported on the spool valve which can be positioned by a control pressure against the force of the overload spring. The control pressure is configured to set a preload of the pilot control spring. At the same time, in a loaded position, in which the pilot control valve has minimum preload, the spool valve rests against a stop. A preload of the overload spring and a position of the stop can be set independently of one another.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: December 6, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Adrian Jerchen, Thorsten Geiger, Ludmilla Graf
  • Pilot-Operated Pressure Control Valve
    Publication number: 20120305108
    Abstract: A pilot-controlled pressure control valve is disclosed. The pilot-controlled pressure control valve has a pilot control stage, a spool valve, and an overload spring. The pilot control stage includes a pilot control piston which has a pilot control spring. The pilot control spring acts in a closing direction of the pilot control stage. The pilot control spring is supported on the spool valve which can be positioned by a control pressure against the force of the overload spring. The control pressure is configured to set a preload of the pilot control spring. At the same time, in a loaded position, in which the pilot control valve has minimum preload, the spool valve rests against a stop. A preload of the overload spring and a position of the stop can be set independently of one another.
    Type: Application
    Filed: October 15, 2010
    Publication date: December 6, 2012
    Applicant: Robert Bosch GmbH
    Inventors: Adrian Jerchen, Thorsten Geiger, Ludmilla Graf