Patents by Inventor Klaus Pfannschmidt

Klaus Pfannschmidt 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).

  • Concentric bearing and seal arrangement of a shaft in a hydrogen system
    Publication number: 20050100462
    Abstract: A gas compressor that compresses a gas in a fuel cell system includes a shaft having first and second ends, a first bearing rotatably supporting the shaft at the first end and a second bearing rotatably supporting the shaft between the first and second ends. A sealing arrangement is concentric with the second bearing to inhibit migration of the gas between compartments of the compressor. The gas compressor can be a compressor, blower, pump or supercharger or turbo compressor that transports the gas.
    Type: Application
    Filed: November 10, 2003
    Publication date: May 12, 2005
    Inventors: Ralph Hobmeyr, Detlev Grobeis, Klaus Pfannschmidt