Patents by Inventor Hans Duve

Hans Duve 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).

  • Patent number: 8663481
    Abstract: A method of treating water with chlorine dioxide (ClO2), by: surrounding a reaction chamber, in which the ClO2 is generated, with water, wherein the water surrounding the reaction chamber is simultaneously the water to be treated; and passing a reaction solution comprising the ClO2 formed in the reaction chamber out of the reaction chamber through an outlet directly into the water, thus treating the water.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: March 4, 2014
    Assignee: Infracor GmbH
    Inventor: Hans Duve
  • Patent number: 8486276
    Abstract: The present invention relates to a method of treating water and an aqueous system, situated in a pipe, with chlorine dioxide (ClO2), the method including generating ClO2 in a reaction space such that the generated ClO2 is completely surrounded by a system to be treated, and delivering the ClO2 generated in the reaction space to the system to be treated which is situated in the pipe, wherein the system surrounding the reaction space is the system to be treated, the reaction space is a component of a mobile device and the mobile device can be introduced into the pipe, in which the system to be treated is situated, and removed again independently of the pressure state of the pipe containing the system to be treated, and the reaction space is situated in the pipe containing the system to be treated.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 16, 2013
    Assignee: Infracor GmbH
    Inventor: Hans Duve
  • Publication number: 20110220587
    Abstract: A method of treating water with chlorine dioxide (ClO2), by: surrounding a reaction chamber, in which the ClO2 is generated, with water, wherein the water surrounding the reaction chamber is simultaneously the water to be treated; and passing a reaction solution comprising the ClO2 formed in the reaction chamber out of the reaction chamber through an outlet directly into the water, thus treating the water.
    Type: Application
    Filed: May 17, 2011
    Publication date: September 15, 2011
    Applicant: Infracor GmbH
    Inventor: Hans DUVE
  • Publication number: 20100155341
    Abstract: The present invention relates to a method of treating water and an aqueous system, situated in a pipe, with chlorine dioxide (ClO2), the method including generating ClO2 in a reaction space such that the generated ClO2 is completely surrounded by a system to be treated, and delivering the ClO2 generated in the reaction space to the system to be treated which is situated in the pipe, wherein the system surrounding the reaction space is the system to be treated, the reaction space is a component of a mobile device and the mobile device can be introduced into the pipe, in which the system to be treated is situated, and removed again independently of the pressure state of the pipe containing the system to be treated, and the reaction space is situated in the pipe containing the system to be treated.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Applicant: Infracor GmbH
    Inventor: Hans DUVE
  • Publication number: 20090159538
    Abstract: A method of treating water with chlorine dioxide (ClO2), by: surrounding a reaction chamber, in which the ClO2 is generated, with water, wherein the water surrounding the reaction chamber is simultaneously the water to be treated; and passing a reaction solution comprising the ClO2 formed in the reaction chamber out of the reaction chamber through an outlet directly into the water, thus treating the water.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Applicant: Infracor GmbH
    Inventor: Hans DUVE
  • Patent number: 5531965
    Abstract: The content of decomposable organic carbon compounds present in a gaseous phase is determined down to the parts per billion (10.sup.-9) range and in special cases down to the parts per trillion (10.sup.-12) range. The gaseous sample material being tested is introduced into a limited quantity of water wherein the organic compounds are photolytically decomposed. The decomposition products are ascertained in the carrier gas and/or in the limited quantity of water.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 2, 1996
    Assignee: HULS Aktiengesellschaft
    Inventor: Hans Duve
  • Patent number: 5480806
    Abstract: The content of decomposable organic carbon compounds present in a gaseous phase is determined down to the parts per billion (10.sup.-9) range and in special cases down to the parts per trillion (10.sup.-12) range. The gaseous sample material being tested is introduced into a limited quantity of water wherein the organic compounds are photolytically decomposed. The decomposition products are ascertained in the carrier gas and/or in the limited quantity of water.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: January 2, 1996
    Assignee: Huls Aktiengesellschaft
    Inventor: Hans Duve
  • Patent number: 4622306
    Abstract: Decomposable organic compounds can, at times, be contained in the feedwater for steam generators; these decomposable compounds can stem from the untreated water supply or from the recondensate if the steam is utilized as heating steam for chemical plants and the condensate is recycled into the steam generator. The decomposition products can lead to damage to the material in the steam generator during long-term exposure.A partial stream of the feedwater is continuously examined for such compounds; as soon as these occur, they are disintegrated in the partial stream by UV light. The decomposition products are detected by measuring conductivity and/or by means of ion-sensitive electrodes. This measuring process works very rapidly and is highly sensitive, making it possible to consistently recognize contaminated water quantities and then to remove same in a controlled fashion from the feedwater stream for the steam generator or to process same into unobjectionable feedwater.
    Type: Grant
    Filed: August 14, 1984
    Date of Patent: November 11, 1986
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventor: Hans Duve