Patents by Inventor Michael Kussmann

Michael Kussmann 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: 8291749
    Abstract: An immersion probe for water analysis includes at least one electrode configured to detect an analyte in water, a probe head with a probe head end side on which the at least one electrode is disposed, and a separate protective cap attached to the probe head so as to be removable in a distal direction. The separate protective cap includes a protective cap end side with an electrode opening and an air discharge nozzle. The air discharge nozzle is configured so as to cause air exiting the air discharge nozzle to sweep over the at least one electrode.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: October 23, 2012
    Assignee: Hach Lange GmbH
    Inventors: Axel Leyer, Lothar Heidemanns, Andreas Jonak, Markus Hahn, Michael Kussmann, Heinz Rudde, Claudia Rieger
  • Publication number: 20120212234
    Abstract: A water analysis measurement arrangement for determining a concentration of ions and/or ionic compounds in an aqueous medium includes a closed buffer solution housing comprising a pH buffer solution. The closed buffer solution housing is configured to communicate with the aqueous medium via an electrolyte bridge. A reference electrode is arranged in the closed buffer solution housing. An amplifier ground is disposed on a ground electrode and is configured to directly contact the aqueous medium. A high-impedance amplifier comprises a first capacitive element arranged between the reference electrode and the amplifier ground. An AC voltage generator is arranged between the amplifier ground and the ground electrode. A measurement electrode is configured to directly contact the aqueous medium.
    Type: Application
    Filed: August 5, 2010
    Publication date: August 23, 2012
    Applicant: HACH LANGE GMBH
    Inventors: Michael Kussmann, Lothar Heidemanns, Andreas Jonak, Markus Hahn, Heinz Rudde, Claudia Rieger, Axel Leyer
  • Publication number: 20110023586
    Abstract: An immersion probe for water analysis includes at least two sensors configured to determine different water parameters, a sensor module receiving portion with at least two sensor-module plug-in positions, and at least two sensor modules. The at least two sensor-module plug-in positions are configured to be substantially physically and electrically similar. Each of the at least two sensor modules respectively comprise a sensor and are disposed in a respective sensor-module plug-in position.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 3, 2011
    Applicant: Hach Lange GmbH
    Inventors: Axel Leyer, Lothar Heidemanns, Andreas Jonak, Markus Hahn, Michael Kussmann, Heinz Rudde, Claudia Rieger
  • Patent number: 7854894
    Abstract: Feed devices for liquid samples serve to convey liquid samples, for example to convey a liquid sample from waste water in a waste water treatment plant so as to monitor the treatment process. Known feed devices feed continuously at relatively low speeds. Films may accrete in the feed line that hinder the feeding and may react with the liquid sample. Therefore, the feed line must be cleaned frequently. In view of this, it is the object of the invention to improve the handling and the maintenance of a feed device for liquid samples. According to the invention, this object is solved by the fact that the feed pump (16) feeds in a pulse-like manner and the feed pump (16) as well as the feed line (18) are configured such that the expansion volume of the feed line (18) during the feed pulse is at most 50% of the pulse volume. Thereby, the feed line is cleaned and kept free of accretions.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: December 21, 2010
    Assignee: Hach Lange GmbH
    Inventors: Klaus Bittner, Michael Kussmann
  • Publication number: 20100288023
    Abstract: An immersion probe for water analysis includes at least one electrode configured to detect an analyte in water, a probe head with a probe head end side on which the at least one electrode is disposed, and a separate protective cap attached to the probe head so as to be removable in a distal direction. The separate protective cap includes a protective cap end side with an electrode opening and an air discharge nozzle. The air discharge nozzle is configured so as to cause air exiting the air discharge nozzle to sweep over the at least one electrode.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Applicant: HACH LANGE GMBH
    Inventors: Axel Leyer, Lothar Heidemanns, Andreas Jonak, Markus Hahn, Michael Kussmann, Heinz Rudde, Claudia Rieger
  • Patent number: 7799202
    Abstract: Gas-selective electrodes in liquid analyzing devices have a characteristic curve K with a linear portion L and a non-linear portion NL. In the non-linear portion NL, the characteristic previously could only be estimated so that determinations of the concentration were rather inexact. According to the present application, the electrode is rinsed with an acid and the zero point voltage UN at the electrode is determined during the rinsing. Using the zero point voltage UN, the non-linear portion NL of the characteristic K is determined with high precision so that even low concentrations c can be determined with great accuracy.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: September 21, 2010
    Assignee: Hach Lange GmbH
    Inventors: Manfred Battefeld, Klaus Bittner, Andreas Golitz, Markus Hahn, Michael Kussmann, Aurelia Stellmach-Hanulok
  • Publication number: 20060027464
    Abstract: Gas-selective electrodes in liquid analyzing devices have a characteristic K with a linear portion L and a non-linear portion NL. In the non-linear portion NL, the characteristic can only be estimated so that these determinations of the concentration are rather inexact. According to the present method, the electrode is rinsed with an acid and the zero point voltage at the electrode is determined during the rinsing. Using the zero point voltage UN thus quickly obtained, the non-linear portion NL of the characteristic K can be determined with high precision so that even low concentrations c can be determined with great accuracy.
    Type: Application
    Filed: August 2, 2005
    Publication date: February 9, 2006
    Inventors: Manfred Battefeld, Klaus Bittner, Andreas Golitz, Markus Hahn, Michael Kussmann, Aurelia Stellmach-Hanulok
  • Publication number: 20060024210
    Abstract: Feed devices for liquid samples serve to convey liquid samples, for example to convey a liquid sample from waste water in a waste water treatment plant so as to monitor the treatment process. Known feed devices feed continuously at relatively low speeds. Films may accrete in the feed line that hinder the feeding and may react with the liquid sample. Therefore, the feed line must be cleaned frequently. In view of this, it is the object of the invention to improve the handling and the maintenance of a feed device for liquid samples. According to the invention, this object is solved by the fact that the feed pump (16) feeds in a pulse-like manner and the feed pump (16) as well as the feed line (18) are configured such that the expansion volume of the feed line (18) during the feed pulse is at most 50% of the pulse volume. Thereby, the feed line is cleaned and kept free of accretions.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventors: Klaus Bittner, Michael Kussmann