Patents by Inventor Stefan Eisfelder

Stefan Eisfelder 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).

  • Pressure control device and method for a vehicle
    Patent number: 8910739
    Abstract: A pressure control device for a vehicle comprises an electronic control unit and a valve device for controllably connecting a compression chamber of the vehicle's air compressor to the vehicle's compressed-air supply and storage system. The pressure control device is configured to (i) connect the compression chamber to the compressed-air supply and storage system in a compressed-air production mode to convey compressed air from the compression chamber into the compressed-air supply and storage system, (ii) connect the compression chamber to the compressed-air supply and storage system in a compressed-air expansion mode to convey compressed air from the compressed-air supply and storage system into the compression chamber, and (iii) switch from the compressed-air production mode to the compressed-air expansion mode and vice-versa by electrically actuating one or more electrically operable valves of the valve device.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: December 16, 2014
    Assignee: WABCO GmbH
    Inventors: Stefan Eisfelder, Ingo Stumberg, Christian Wiehen, Christoph Wilken