Patents by Inventor Franz Kneldl

Franz Kneldl 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).

  • Eccentric screw-type pump with spare unit
    Publication number: 20040057846
    Abstract: The present invention relates to an eccentric screw-type pump. Due to their contact with the product to be pumped, the rotor and the stator of an eccentric screw-type are subject to a permanent wearing process. As the exchange of corresponding components subject to wear involves down times or requires special tools, the inventive eccentric screw-type pump is provided with a spare unit including, in particular, the stator, the rotor, the shaft, the driving shaft and the seal.
    Type: Application
    Filed: September 19, 2003
    Publication date: March 25, 2004
    Inventors: Reinhard Denk, Christoph Boehnisch, Michael Groth, Franz Kneldl, Johann Kreidl, Thomas Ribbe, Michael Robby, Robert Kurz