Patents by Inventor Jens Ronnefahrt

Jens Ronnefahrt 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).

  • Spring system and vehicle seat having a spring system
    Publication number: 20060214458
    Abstract: The invention relates to a spring system having an oscillating part, a stationary part and an intermediately disposed air spring. At least one ccompressible pneumatic spring element is disposed between the stationary part and the oscillating part and defines an aperture through which the spring element is connected to the volume of the air spring, in an unloaded state, and the aperture is closed in a loaded, compressed state. The invention furthermore also relates to a vehicle seat which includes a spring system having the aforementioned features.
    Type: Application
    Filed: February 27, 2006
    Publication date: September 28, 2006
    Inventors: Lutz Meyer, Jens Ronnefahrt