Patents by Inventor Karl Rubenberger

Karl Rubenberger 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).

  • Bioreactor with vortex mixing chamber
    Patent number: 6168949
    Abstract: The invention relates to an apparatus for the aerobic multiplication of micro-organisms. A tank with a conical bottom shape holds the fermentation broth and a circulating pump outside the tank circulates the fermentation broth from the bottom of the tank to the top. A heat exchanger maintains the desired process temperature. In accordance with the invention, the apparatus includes at least one atomizing nozzle contained within a vortex chamber for the fine atomization of the fermentation broth and for the mixing with process gas in the top of the tank above the fermentation broth. The fermentation broth in the lower portion of the tank is at a quiescent state without mechanical agitation.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: January 2, 2001
    Inventor: Karl Rubenberger