Patents by Inventor Andreas Mitreiter

Andreas Mitreiter 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: 10520433
    Abstract: Various turbidimeters are described that can detect light directly in a substantially circular, e.g., encompassing, manner such that an increased amount of scattered light from a sample vial may be detected by a light detector, e.g., a photodiode or photodiode array. In an embodiment, a substantially circular photodiode array is provided to directly detect scattered light in an arc about the sample vial. In other embodiments, light guides are provided in an arc element that guides light to a detector or detectors. Other aspects are described and claimed.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: December 31, 2019
    Assignee: HACH COMPANY
    Inventors: Richard Edward Leggett, Wayne Boris Perdue, Andreas Mitreiter
  • Patent number: 10408729
    Abstract: A nephelometric turbidimeter for measuring a turbidity of a liquid sample in a transparent sample cuvette. The nephelometric turbidimeter includes a cuvette chamber housing with a cuvette chamber having the transparent sample cuvette arranged therein, and a drying apparatus. The drying apparatus includes a cuvette chamber inlet opening which vents the cuvette chamber, a cuvette chamber outlet opening which de-vents the cuvette chamber, an air circulator which circulates air from the cuvette chamber outlet opening to the cuvette chamber inlet opening, and a drying body. The drying body is provided as a container of a hygroscopic agent defined by a drying substance which is arranged in a drying path between the cuvette chamber outlet opening and the cuvette chamber inlet opening so that air flows through the drying body.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: September 10, 2019
    Assignee: HACH LANGE GMBH
    Inventors: Manfred Battefeld, Hans-Joachim Kumpch, Axel Leyer, Bas De Heij, Clemens Hanschke, Michael Kueppers, Andreas Jonak, Elk Fricke, Heinz Rudde, Markus Hahn, Markus Lenhard, Rolf Uthemann, Sebastian Minke, Andreas Golitz, Bernd Gassner, Frank Steinhauer, Lothar Heidemanns, Andreas Mitreiter
  • Publication number: 20190219502
    Abstract: Various turbidimeters are described that can detect light directly in a substantially circular, e.g., encompassing, manner such that an increased amount of scattered light from a sample vial may be detected by a light detector, e.g., a photodiode or photodiode array. In an embodiment, a substantially circular photodiode array is provided to directly detect scattered light in an arc about the sample vial. In other embodiments, light guides are provided in an arc element that guides light to a detector or detectors. Other aspects are described and claimed.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 18, 2019
    Inventors: Richard Edward Leggett, Wayne Boris Perdue, Andreas Mitreiter
  • Patent number: 10309950
    Abstract: A test element for a mobile water analyzing system includes a sample line and a key reagent disposed in the sample line. The sample line includes an inlet opening arranged at a first end, a pump port arranged at a second end of the sample line, an inlet section arranged between the inlet opening and the pump port, and a measuring section with at least one window arranged at an end of the measuring section. The inlet opening receives a water sample. The measuring section is arranged between the inlet section and the pump port and is coincident with a sample pathway.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: June 4, 2019
    Assignee: HACH LANGE GMBH
    Inventors: Ulrich Lundgreen, Aria Farjam, Rolf Uthemann, Andreas Mitreiter, Isabel Huenig, Markus Lenhard, Rainer Froemel, Hans-Joachim Kumpch
  • Patent number: 10281393
    Abstract: Various turbidimeters are described that can detect light directly in a substantially circular, e.g., encompassing, manner such that an increased amount of scattered light from a sample vial may be detected by a light detector, e.g., a photodiode or photodiode array. In an embodiment, a substantially circular photodiode array is provided to directly detect scattered light in an arc about the sample vial. In other embodiments, light guides are provided in an arc element that guides light to a detector or detectors. Other aspects are described and claimed.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: May 7, 2019
    Assignee: HACH COMPANY
    Inventors: Richard Edward Leggett, Wayne Boris Perdue, Andreas Mitreiter
  • Patent number: 10261009
    Abstract: A basic unit for a mobile water analyzing system includes a photometer comprising a light source configured to generate a measurement beam and a light detector configured to receive the measurement beam, a test element receptacle configured to allow a test element to be inserted therein, and a photometric measuring track arranged between the light source and the light detector. The measurement beam is coincident with the photometric measuring track during a photometric measurement, and not in a cross direction thereto.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: April 16, 2019
    Assignee: HACH LANGE GMBH
    Inventors: Ulrich Lundgreen, Aria Farjam, Rolf Uthemann, Andreas Mitreiter, Isabel Huenig, Markus Lenhard, Rainer Froemel, Hans-Joachim Kumpch
  • Publication number: 20180372607
    Abstract: A nephelometric turbidimeter for measuring a turbidity of a liquid sample in a transparent sample cuvette. The nephelometric turbidimeter includes a cuvette chamber housing with a cuvette chamber having the transparent sample cuvette arranged therein, and a drying apparatus. The drying apparatus includes a cuvette chamber inlet opening which vents the cuvette chamber, a cuvette chamber outlet opening which de-vents the cuvette chamber, an air circulator which circulates air from the cuvette chamber outlet opening to the cuvette chamber inlet opening, and a drying body. The drying body is provided as a container of a hygroscopic agent defined by a drying substance which is arranged in a drying path between the cuvette chamber outlet opening and the cuvette chamber inlet opening so that air flows through the drying body.
    Type: Application
    Filed: November 19, 2015
    Publication date: December 27, 2018
    Applicant: HACH LANGE GMBH
    Inventors: MANFRED BATTEFELD, HANS-JOACHIM KUMPCH, AXEL LEYER, BAS DE HEIJ, CLEMENS HANSCHKE, MICHAEL KUEPPERS, ANDREAS JONAK, ELK FRICKE, HEINZ RUDDE, MARKUS HAHN, MARKUS LENHARD, ROLF UTHEMANN, SEBASTIAN MINKE, ANDREAS GOLITZ, BERND GASSNER, FRANK STEINHAUER, LOTHAR HEIDEMANNS, ANDREAS MITREITER
  • Patent number: 10126236
    Abstract: A method for detecting a contamination of a cuvette of a turbidimeter. The turbidimeter includes a light source which emits a light beam directed to a cuvette, a scattering light detector, and a diffuser with a body and an actuator. The actuator moves the body between a parking position and a test position where the body is between the measurement light source and the cuvette, thereby interferes with the light beam, and generates a diffuse test light entering the cuvette. The method includes activating the actuator to move the body from the parking position into the test position, activating the light source, measuring a test light intensity received by the scattering light detector, comparing the test light intensity measured with a reference light intensity, and generating a contamination signal if a difference between a reference light intensity and the test light intensity measured exceeds a first threshold value.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 13, 2018
    Assignee: HACH LANGE GMBH
    Inventors: Manfred Battefeld, Michael Kussmann, Bas De Heij, Bernd Gassner, Frank Steinhauer, Hans-Joachim Kumpch, Axel Leyer, Michael Kueppers, Andreas Golitz, Andreas Mitreiter, Clemens Hanschke, Lothar Heidemanns
  • Publication number: 20180059016
    Abstract: A method for detecting a contamination of a cuvette of a turbidimeter. The turbidimeter includes a light source which emits a light beam directed to a cuvette, a scattering light detector, and a diffuser with a body and an actuator. The actuator moves the body between a parking position and a test position where the body is between the measurement light source and the cuvette, thereby interferes with the light beam, and generates a diffuse test light entering the cuvette. The method includes activating the actuator to move the body from the parking position into the test position, activating the light source, measuring a test light intensity received by the scattering light detector, comparing the test light intensity measured with a reference light intensity, and generating a contamination signal if a difference between a reference light intensity and the test light intensity measured exceeds a first threshold value.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 1, 2018
    Applicant: HACH LANGE GMBH
    Inventors: MANFRED BATTEFELD, MICHAEL KUSSMANN, BAS DE HEIJ, BERND GASSNER, FRANK STEINHAUER, HANS-JOACHIM KUMPCH, AXEL LEYER, MICHAEL KUEPPERS, ANDREAS GOLITZ, ANDREAS MITREITER, CLEMENS HANSCHKE, LOTHAR HEIDEMANNS
  • Patent number: 9851297
    Abstract: A nephelometric turbidimeter for measuring a turbidity of a liquid sample in a sample cuvette. The nephelometric turbidimeter includes a measurement light source configured to emit an axial parallel light beam directed to the sample cuvette, a scattering light detector arranged to receive a scattered light from the sample cuvette, and a diffuser comprising a diffuser body and a diffuser actuator. The diffuser actuator is configured to move the diffuser body between a parking position in which the diffuser body does not interfere with the axial parallel light beam and a test position where the diffuser body is arranged between the measurement light source and the sample cuvette so that the diffuser body interferes with the axial parallel light beam and generates a diffuse test light entering the sample cuvette.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 26, 2017
    Assignee: Hach Lange GmbH
    Inventors: Manfred Battefeld, Michael Kussmann, Bas De Heij, Bernd Gassner, Frank Steinhauer, Hans-Joachim Kumpch, Axel Leyer, Michael Kueppers, Andreas Golitz, Andreas Mitreiter, Clemens Hanschke, Lothar Heidemanns
  • Patent number: 9784669
    Abstract: A nephelometric turbidimeter with a cylindrical turbidimeter vial. The cylindrical turbidimeter vial includes a transparent vial body and a circular optical shielding configured to optically block an inside from an outside of the turbidimeter vial. The vial body comprises a transparent and flat bottom inlet window, and a transparent vial cylinder body. The vial cylinder body comprises a circular outlet window. The optical shielding is arranged axially above the outlet window of the vial cylinder body, over a part of an axial length of the vial cylinder body, and axially adjacent to a non-shielded part of the vial cylinder body which serves as the outlet window.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: October 10, 2017
    Inventors: Manfred Battefeld, Bas De Heij, Hans-Joachim Kumpch, Andreas Mitreiter, Andreas Golitz
  • Publication number: 20170276603
    Abstract: Various turbidimeters are described that can detect light directly in a substantially circular, e.g., encompassing, manner such that an increased amount of scattered light from a sample vial may be detected by a light detector, e.g., a photodiode or photodiode array. In an embodiment, a substantially circular photodiode array is provided to directly detect scattered light in an arc about the sample vial. In other embodiments, light guides are provided in an arc element that guides light to a detector or detectors. Other aspects are described and claimed.
    Type: Application
    Filed: September 18, 2015
    Publication date: September 28, 2017
    Inventors: Richard Edward Leggett, Wayne Boris Perdue, Andreas Mitreiter
  • Publication number: 20170176406
    Abstract: A test element for a mobile water analyzing system includes a sample line and a key reagent disposed in the sample line. The sample line includes an inlet opening arranged at a first end, a pump port arranged at a second end of the sample line, an inlet section arranged between the inlet opening and the pump port, and a measuring section with at least one window arranged at an end of the measuring section. The inlet opening receives a water sample. The measuring section is arranged between the inlet section and the pump port and is coincident with a sample pathway.
    Type: Application
    Filed: March 2, 2017
    Publication date: June 22, 2017
    Applicant: HACH LANGE GMBH
    Inventors: ULRICH LUNDGREEN, ARIA FARJAM, ROLF UTHEMANN, ANDREAS MITREITER, ISABEL HUENIG, MARKUS LENHARD, RAINER FROEMEL, HANS-JOACHIM KUMPCH
  • Patent number: 9638626
    Abstract: A nephelometric turbidimeter vial arrangement includes a vial and a separate vial cap. The vial comprises a transparent cylindrical vial body configured to enclose a vial interior, a bottom inlet window, and a top vial opening configured to be circular. The separate vial cap comprises a light trap cavity. The separate vial cap is configured to close the top vial opening. The light trap cavity comprises an inner surface which comprises a light absorbing surface. The light trap cavity is configured to be open to the vial interior.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: May 2, 2017
    Assignee: HACH LANGE GMBH
    Inventors: Manfred Battefeld, Bas De Heij, Hans-Joachim Kumpch, Andreas Mitreiter, Andreas Golitz
  • Patent number: 9625435
    Abstract: A basic unit for a mobile water analyzing system includes a photometer, a test element receptacle, a photometric measuring track, and a pump actuator. The photometer comprises a light source configured to generate a measurement beam and a light detector configured to receive the measurement beam. The test element receptacle is configured so as to allow a separate test element comprising a measuring section and a pump port to be inserted into the test element receptacle. The photometric measuring track is defined by the measuring section when the separate test element is inserted into the test element receptacle. The measurement beam and the photometric measuring track are aligned during a photometric measurement so that a photometric measurement occurs along a longitudinal length of each of the photometric measuring track and the measuring section. The pump actuator is cooperatively connected with the pump port.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: April 18, 2017
    Assignee: HACH LANGE GMBH
    Inventors: Ulrich Lundgreen, Aria Farjam, Rolf Uthemann, Andreas Mitreiter, Isabel Huenig, Markus Lenhard, Rainer Froemel, Hans-Joachim Kumpch
  • Publication number: 20160231240
    Abstract: A nephelometric turbidimeter for measuring a turbidity of a liquid sample in a sample cuvette. The nephelometric turbidimeter includes a measurement light source configured to emit an axial parallel light beam directed to the sample cuvette, a scattering light detector arranged to receive a scattered light from the sample cuvette, and a diffuser comprising a diffuser body and a diffuser actuator. The diffuser actuator is configured to move the diffuser body between a parking position in which the diffuser body does not interfere with the axial parallel light beam and a test position where the diffuser body is arranged between the measurement light source and the sample cuvette so that the diffuser body interferes with the axial parallel light beam and generates a diffuse test light entering the sample cuvette.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 11, 2016
    Applicant: HACH LANGE GMBH
    Inventors: MANFRED BATTEFELD, MICHAEL KUSSMANN, BAS DE HEIJ, BERND GASSNER, FRANK STEINHAUER, HANS-JOACHIM KUMPCH, AXEL LEYER, MICHAEL KUEPPERS, ANDREAS GOLITZ, ANDREAS MITREITER, CLEMENS HANSCHKE, LOTHAR HEIDEMANNS
  • Patent number: 9410882
    Abstract: A turbidimeter for measuring a turbidity of a liquid sample in a sample cuvette includes a cuvette receiving device configured to position the sample cuvette in a defined cuvette position, a light source configured to generate a parallel light beam in the sample cuvette, an annular 45° collecting mirror configured to surround the sample cuvette, a scattering body arranged concentric to the annular 45° collecting mirror, a scattering light detector arranged to receive light scattered by the scattering body, and an annular 45° concentration mirror arranged coaxially to the annular 45° collecting mirror and optically opposite to the annular 45° collecting mirror. The annular 45° collecting mirror is arranged concentric to the light beam. The annular 45° concentration mirror is configured to surround the scattering body.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: August 9, 2016
    Assignee: HACH LANGE GMBH
    Inventors: Barbara Haase, Manfred Battefeld, Andreas Mitreiter, Michael Kussmann, Bas De Heij, Clemens Hanschke, Wayne Perdue
  • Publication number: 20160153893
    Abstract: A nephelometric turbidimeter vial arrangement includes a vial and a separate vial cap. The vial comprises a transparent cylindrical vial body configured to enclose a vial interior, a bottom inlet window, and a top vial opening configured to be circular. The separate vial cap comprises a light trap cavity. The separate vial cap is configured to close the top vial opening. The light trap cavity comprises an inner surface which comprises a light absorbing surface. The light trap cavity is configured to be open to the vial interior.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 2, 2016
    Inventors: MANFRED BATTEFELD, BAS DE HEIJ, HANS-JOACHIM KUMPCH, ANDREAS MITREITER, ANDREAS GOLITZ
  • Publication number: 20160153891
    Abstract: A nephelometric turbidimeter with a cylindrical turbidimeter vial. The cylindrical turbidimeter vial includes a transparent vial body and a circular optical shielding configured to optically block an inside from an outside of the turbidimeter vial. The vial body comprises a transparent and flat bottom inlet window, and a transparent vial cylinder body. The vial cylinder body comprises a circular outlet window. The optical shielding is arranged axially above the outlet window of the vial cylinder body, over a part of an axial length of the vial cylinder body, and axially adjacent to a non-shielded part of the vial cylinder body which serves as the outlet window.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 2, 2016
    Inventors: MANFRED BATTEFELD, BAS DE HEIJ, HANS-JOACHIM KUMPCH, ANDREAS MITREITER, ANDREAS GOLITZ
  • Publication number: 20160109365
    Abstract: A turbidimeter for measuring a turbidity of a liquid sample in a sample cuvette includes a cuvette receiving device configured to position the sample cuvette in a defined cuvette position, a light source configured to generate a parallel light beam in the sample cuvette, an annular 45° collecting mirror configured to surround the sample cuvette, a scattering body arranged concentric to the annular 45° collecting minor, a scattering light detector arranged to receive light scattered by the scattering body, and an annular 45° concentration minor arranged coaxially to the annular 45° collecting minor and optically opposite to the annular 45° collecting mirror. The annular 45° collecting minor is arranged concentric to the light beam. The annular 45° concentration minor is configured to surround the scattering body.
    Type: Application
    Filed: May 13, 2013
    Publication date: April 21, 2016
    Inventors: BARBARA HAASE, MANFRED BATTEFELD, ANDREAS MITREITER, MICHAEL KUSSMANN, BAS DE HEIJ, CLEMENS HANSCHKE, WAYNE PERDUE