Patents by Inventor Kurt Frederich Roos

Kurt Frederich Roos 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).

  • Anaerobic digester system for animal waste stabilization and biogas recovery
    Patent number: 7320753
    Abstract: An ambient anaerobic digester system for anaerobic digestion of animal waste with biogas production and recovery is provided. The anaerobic digester system includes a substantially flexible bladder for anaerobically digesting the animal waste with biogas production and transmitting the biogas to at least one biogas storage container, biogas use device or a combination thereof. In a preferred form, the substantially flexible bladder has a waste inlet, a digester effluent outlet, one or more sludge access ports and a biogas outlet in a top surface thereof. The anaerobic digester system may inexpensively, simply, reliably, and effectively be used to treat animal waste without energy expenditure and little capital expense, thus minimizing pollution typically caused by animal waste.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: January 22, 2008
    Assignee: The United States of America as represented by the United States Environmental Protection Agency
    Inventor: Kurt Frederich Roos
  • ANAEROBIC DIGESTER SYSTEM FOR ANIMAL WASTE STABILIZATION AND BIOGAS RECOVERY
    Publication number: 20070256971
    Abstract: An ambient anaerobic digester system for anaerobic digestion of animal waste with biogas production and recovery is provided. The anaerobic digester system includes a substantially flexible bladder for anaerobically digesting the animal waste with biogas production and transmitting the biogas to at least one biogas storage container, biogas use device or a combination thereof. In a preferred form, the substantially flexible bladder has a waste inlet, a digester effluent outlet, one or more sludge access ports and a biogas outlet in a top surface thereof. The anaerobic digester system may inexpensively, simply, reliably, and effectively be used to treat animal waste without energy expenditure and little capital expense, thus minimizing pollution typically caused by animal waste.
    Type: Application
    Filed: March 5, 2007
    Publication date: November 8, 2007
    Inventor: KURT FREDERICH ROOS