Patents by Inventor Kurt Schardt

Kurt Schardt 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).

  • Process for the catalytic cleaning of the exhaust gas from a combustion plant
    Patent number: 6620391
    Abstract: Exhaust gas to be cleaned is introduced into a conversion and mixing duct and the exhaust gas flows through the duct along a predetermined longitudinal direction. A reducing agent, such as aqueous urea solution, is injected into the exhaust gas stream in the conversion and mixing duct. The exhaust gas stream is then deflected into a reaction duct which extends parallel to or coaxially around the conversion and mixing duct. The exhaust gas then flows in the opposite direction through the reaction duct. A reduction catalyst is disposed in the reaction duct, where the reducible components of the exhaust gas are reduced. The exhaust gas cleaned in this manner is then discharged from the reaction duct.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: September 16, 2003
    Assignee: Siemens Aktiengesellschaft
    Inventors: Raimund Müller, Lothar Hofmann, Kurt Schardt, Wieland Mathes
  • Process for the catalytic cleaning of the exhaust gas from a combustion plant
    Publication number: 20020187093
    Abstract: Exhaust gas to be cleaned is introduced into a conversion and mixing duct and the exhaust gas flows through the duct along a predetermined longitudinal direction. A reducing agent, such as aqueous urea solution, is injected into the exhaust gas stream in the conversion and mixing duct. The exhaust gas stream is then deflected into a reaction duct which extends parallel to or coaxially around the conversion and mixing duct. The exhaust gas then flows in the opposite direction through the reaction duct. A reduction catalyst is disposed in the reaction duct, where the reducible components of the exhaust gas are reduced. The exhaust gas cleaned in this manner is then discharged from the reaction duct.
    Type: Application
    Filed: July 24, 2002
    Publication date: December 12, 2002
    Applicant: Siemens Aktiengesellschaft
    Inventors: Raimund Muller, Lothar Hofmann, Kurt Schardt, Wieland Mathes
  • Process and device for the catalytic cleaning of the exhaust gas from a combustion plant
    Patent number: 6444177
    Abstract: Exhaust gas to be cleaned is introduced into a conversion and mixing duct and the exhaust gas flows through the duct along a predetermined longitudinal direction. A reducing agent, such as aqueous urea solution, is injected into the exhaust gas stream in the conversion and mixing duct. The exhaust gas stream is then deflected into a reaction duct which extends parallel to or coaxially around the conversion and mixing duct. The exhaust gas then flows in the opposite direction through the reaction duct. A reduction catalyst is disposed in the reaction duct, where the reducible components of the exhaust gas are reduced. The exhaust gas cleaned in this manner is then discharged from the reaction duct.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: September 3, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Raimund Müller, Lothar Hofmann, Kurt Schardt, Wieland Mathes