Patents by Inventor Leander Molter
Leander Molter 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).
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Patent number: 10996144Abstract: A process dilutes an aerosol by feeding an input aerosol through an inlet pipe surrounded by an annular space to a first mixing stage. An output aerosol leaves purified via an outlet as a particle-free clean gas. The particle-free clean gas is fed to the annular space upstream of the outlet and is mixed with the aerosol. A mixing stage includes an inlet pipe feeding aerosol as inlet aerosol. A downstream purification device purifies outlet aerosol leaving the mixing stage via an outlet pipe to form the particle-free clean gas. A mass flow controller and a pump suction off the outlet aerosol from the outlet pipe. A return line, for the clean gas, leads upstream into the annular space.Type: GrantFiled: November 29, 2018Date of Patent: May 4, 2021Assignee: Palas GmbH Partikel- und LasermeßtechnikInventors: Leander Mölter, Ralf Notheis, Joachim Roman, Martin Schmidt
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Patent number: 10634600Abstract: A device for condensing vapor on condensation nuclei, especially for a particle counter, includes an inlet, via which a gas stream carrying particles as condensation nuclei enters into a feed channel; with a saturation channel. An evaporation unit extends over at least a part of the saturation channel. In the evaporation unit a working liquid can be evaporated in the saturation channel. An outlet leads to a measuring unit. At least one flow passage is provided from the feed channel towards the saturation channel. The at least one flow channel is directed at an angle greater than 90° in relation to a direction in which the feed channel extends.Type: GrantFiled: April 14, 2016Date of Patent: April 28, 2020Assignee: PALAS GMBH PARTIKEL-UND LASERMESSTECHNIKInventors: Leander Mölter, Maximilian Weiss
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Publication number: 20190168955Abstract: A device dilutes an aerosol without distortion due to loss of particles, especially liquid particles, on wall surfaces. An inlet pipe feeds aerosol as inlet aerosol and an outlet pipe has an inlet opening arranged at a finite distance from an outlet end of the inlet pipe. An annular space surrounds an end area of the inlet pipe. A clean gas line opens, via an outlet opening, into the annular space. A process is provided including feeding the aerosol as inlet aerosol through the inlet pipe, with particle-free clean gas fed to an end area of the inlet pipe and mixed with the fed inlet aerosol into a diluted outlet aerosol. The diluted outlet aerosol is sent to a measuring device. The mass flow of the aerosol sent to the measuring device and that of the added clean gas are maintained at a fixed ratio.Type: ApplicationFiled: November 29, 2018Publication date: June 6, 2019Inventors: Leander MÖLTER, Ralf NOTHEIS, Joachim ROMAN, Martin SCHMIDT
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Publication number: 20190162636Abstract: A process dilutes an aerosol by feeding an input aerosol through an inlet pipe surrounded by an annular space to a first mixing stage. An output aerosol leaves purified via an outlet as a particle-free clean gas. The particle-free clean gas is fed to the annular space upstream of the outlet and is mixed with the aerosol. A mixing stage includes an inlet pipe feeding aerosol as inlet aerosol. A downstream purification device purifies outlet aerosol leaving the mixing stage via an outlet pipe to form the particle-free clean gas. A mass flow controller and a pump suction off the outlet aerosol from the outlet pipe. A return line, for the clean gas, leads upstream into the annular space.Type: ApplicationFiled: November 29, 2018Publication date: May 30, 2019Inventors: Leander MÖLTER, Ralf NOTHEIS, Joachim ROMAN, Martin SCHMIDT
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Publication number: 20180136106Abstract: A device for condensing vapor on condensation nuclei, especially for a particle counter, includes an inlet, via which a gas stream carrying particles as condensation nuclei enters into a feed channel; with a saturation channel. An evaporation unit extends over at least a part of the saturation channel. In the evaporation unit a working liquid can be evaporated in the saturation channel. An outlet leads to a measuring unit. At least one flow passage is provided from the feed channel towards the saturation channel. The at least one flow channel is directed at an angle greater than 90° in relation to a direction in which the feed channel extends.Type: ApplicationFiled: April 14, 2016Publication date: May 17, 2018Inventors: Leander MÖLTER, Maximilian WEISS
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Patent number: 9581494Abstract: A method for detecting decalibration of a device for analyzing particles, including irradiating particles with light, detecting light scattered from the particles, amplifying, digitizing and detecting the electric signal obtained in a plurality of digital channels corresponding to the intensity representing the particle size and monitoring the appearance of the Mie peak in the measured size-dependent frequency distribution and sending a report if the Mie peak deviates in a digital channel other than the digital standard channel belonging to it based on measurement settings. The electronic analyzing unit detecting a Mie peak in the measured particle size distribution and assigning it to a digital detection channel in a device for detecting the concentration of small particles in gas, with a sample tube, a light source, a detector detecting scattered light scattered on the particles, an analog amplifier, an analog-digital converter, an electronic analyzing unit and a display and operating unit.Type: GrantFiled: October 1, 2013Date of Patent: February 28, 2017Assignee: PALAS GmbH Partikel- und LasermeβtechnikInventors: Maximilian Weiβ, Leander Mölter
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Publication number: 20140092386Abstract: A method for detecting decalibration of a device for analyzing particles, including irradiating particles with light, detecting light scattered from the particles, amplifying, digitizing and detecting the electric signal obtained in a plurality of digital channels corresponding to the intensity representing the particle size and monitoring the appearance of the Mie peak in the measured size-dependent frequency distribution and sending a report if the Mie peak deviates in a digital channel other than the digital standard channel belonging to it based on measurement settings. The electronic analyzing unit detecting a Mie peak in the measured particle size distribution and assigning it to a digital detection channel in a device for detecting the concentration of small particles in gas, with a sample tube, a light source, a detector detecting scattered light scattered on the particles, an analog amplifier, an analog-digital converter, an electronic analyzing unit and a display and operating unit.Type: ApplicationFiled: October 1, 2013Publication date: April 3, 2014Applicant: Palas GmbH Partikel- und LasermesstechnikInventors: Maximilian WEIß, Leander MÖLTER
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Patent number: 7988135Abstract: For the reliable condensation of steam on condensation nuclei in an aerosol flow and therefore for enlarging the particles in the aerosol, the invention provides a method which is characterized in that condensation nuclei are passed through an inner area of an evaporating zone forming a flow area, the liquid to be evaporated is contacted with the flow area and evaporated therein and the thus produced steam is condensed on the condensation nuclei. the invention also provides an apparatus for condensing steam on condensation nuclei with an inlet for condensation nuclei and an evaporating zone constructed in such a way that a flow area for the condensation nuclei has a heated liquid duct open thereto and that a condensation flue is connected to the flow area. The invention also provides methods and apparatuses for counting particles, for producing monodisperse aerosols using the aforementioned method or the aforementioned apparatus.Type: GrantFiled: June 23, 2010Date of Patent: August 2, 2011Assignee: Palas GmbH Partikel-und LasermesstechnikInventors: Leander Mölter, Friedrich Munzinger
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Patent number: 7828273Abstract: For the reliable condensation of steam on condensation nuclei in an aerosol flow and therefore for enlarging the particles in the aerosol, the invention provides a method which is characterized in that condensation nuclei are passed through an inner area of an evaporating zone forming a flow area, the liquid to be evaporated is contacted with the flow area and evaporated therein and the thus produced steam is condensed on the condensation nuclei. The invention also provides an apparatus for condensing steam on condensation nuclei with an inlet for condensation nuclei and an evaporating zone constructed in such a way that a flow area for the condensation nuclei has a heated liquid duct open thereto and that a condensation flue is connected to the flow area. The invention also provides methods and apparatuses for counting particles, for producing monodisperse aerosols using the aforementioned method or the aforementioned apparatus.Type: GrantFiled: March 25, 2009Date of Patent: November 9, 2010Assignee: Palas GmbH Partikel-und LasermesstechnikInventors: Leander Mölter, Friedrich Munzinger
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Publication number: 20100264554Abstract: For the reliable condensation of steam on condensation nuclei in an aerosol flow and therefore for enlarging the particles in the aerosol, the invention provides a method which is characterized in that condensation nuclei are passed through an inner area of an evaporating zone forming a flow area, the liquid to be evaporated is contacted with the flow area and evaporated therein and the thus produced steam is condensed on the condensation nuclei. the invention also provides an apparatus for condensing steam on condensation nuclei with an inlet for condensation nuclei and an evaporating zone constructed in such a way that a flow area for the condensation nuclei has a heated liquid duct open thereto and that a condensation flue is connected to the flow area. The invention also provides methods and apparatuses for counting particles, for producing monodisperse aerosols using the aforementioned method or the aforementioned apparatus.Type: ApplicationFiled: June 23, 2010Publication date: October 21, 2010Inventors: Leander Mõlter, Friedrich Munzinger
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Publication number: 20090236762Abstract: For the reliable condensation of steam on condensation nuclei in an aerosol flow and therefore for enlarging the particles in the aerosol, the invention provides a method which is characterized in that condensation nuclei are passed through an inner area of an evaporating zone forming a flow area, the liquid to be evaporated is contacted with the flow area and evaporated therein and the thus produced steam is condensed on the condensation nuclei. The invention also provides an apparatus for condensing steam on condensation nuclei with an inlet for condensation nuclei and an evaporating zone constructed in such a way that a flow area for the condensation nuclei has a heated liquid duct open thereto and that a condensation flue is connected to the flow area. The invention also provides methods and apparatuses for counting particles, for producing monodisperse aerosols using the aforementioned method or the aforementioned apparatus.Type: ApplicationFiled: March 25, 2009Publication date: September 24, 2009Inventors: Leander Molter, Friedrich Munzinger
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Patent number: 7543803Abstract: For the reliable condensation of steam on condensation nuclei in an aerosol flow and therefore for enlarging the particles in the aerosol, the invention provides a method which is characterized in that condensation nuclei are passed through an inner area of an evaporating zone forming a flow area, the liquid to be evaporated is contacted with the flow area and evaporated therein and the thus produced steam is condensed on the condensation nuclei. the invention also provides an apparatus for condensing steam on condensation nuclei with an inlet for condensation nuclei and an evaporating zone constructed in such a way that a flow area for the condensation nuclei has a heated liquid duct open thereto and that a condensation flue is connected to the flow area. The invention also provides methods and apparatuses for counting particles, for producing monodisperse aerosols using the aforementioned method or the aforementioned apparatus.Type: GrantFiled: January 17, 2006Date of Patent: June 9, 2009Assignee: Palas GmbH Partikel- und LasermesstechnikInventors: Leander Mölter, Friedrich Munzinger
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Patent number: 7139075Abstract: A method for measuring the characteristics of particles in a fluid by detecting electromagnetic radiation scattered on individual particles and an apparatus for performing the method are characterized in that the measurement takes place in structurally separated manner using at least one irradiating device and at least one receiver device in at least one sensor arrangement through which flows a fluid flow containing the particles to be measured, that in the at least one sensor arrangement signal formation takes place of a signal to be received in the receiver device using exclusively optomechanical elements and that signals are transmitted between the at least one sensor arrangement and the at least one irradiating device or the at least one receiver device by means of optical signal transmitters. This makes the apparatus particularly suitable for use in explosion-endangered environments and at difficultly accessible measurement locations, e.g. on chimneys.Type: GrantFiled: January 27, 2003Date of Patent: November 21, 2006Assignee: Palas GmbH Partikel-und LasermestechnikInventors: Leander Mölter, Friedrich Munzinger
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Publication number: 20060158640Abstract: For the reliable condensation of steam on condensation nuclei in an aerosol flow and therefore for enlarging the particles in the aerosol, the invention provides a method which is characterized in that condensation nuclei are passed through an inner area of an evaporating zone forming a flow area, the liquid to be evaporated is contacted with the flow area and evaporated therein and the thus produced steam is condensed on the condensation nuclei. the invention also provides an apparatus for condensing steam on condensation nuclei with an inlet for condensation nuclei and an evaporating zone constructed in such a way that a flow area for the condensation nuclei has a heated liquid duct open thereto and that a condensation flue is connected to the flow area. The invention also provides methods and apparatuses for counting particles, for producing monodisperse aerosols using the aforementioned method or the aforementioned apparatus.Type: ApplicationFiled: January 17, 2006Publication date: July 20, 2006Inventors: Leander Molter, Friedrich Munzinger
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Publication number: 20030142311Abstract: A method for measuring the characteristics of particles in a fluid by detecting electromagnetic radiation scattered on individual particles and an apparatus for performing the method are characterized in that the measurement takes place in structurally separated manner using at least one irradiating device and at least one receiver device in at least one sensor arrangement through which flows a fluid flow containing the particles to be measured, that in the at least one sensor arrangement signal formation takes place of a signal to be received in the receiver device using exclusively optomechanical elements and that signals are transmitted between the at least one sensor arrangement and the at least one irradiating device or the at least one receiver device by means of optical signal transmitters. This makes the apparatus particularly suitable for use in explosion-endangered environments and at difficultly accessible measurement locations, e.g. on chimneys.Type: ApplicationFiled: January 27, 2003Publication date: July 31, 2003Inventors: Leander Molter, Friedrich Munzinger
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Patent number: 6067865Abstract: To increase the dynamic range when testing the particle size distribution of aerosols, the invention proposes a method whereby particles are detected in two measuring volumes connected in series in the measuring channel, whereby in particular the total number of particles flowing through the measuring channel passes through one measuring volume while only a smaller number of particles passes through the other measuring volume. A device appropriate therefor provides for a first measuring volume (MV1) to be located immediately downstream of an inlet nozzle (4) for the aerosol and having a surface perpendicular to the flow direction of the aerosol, said surface corresponding to the surface of the end of the inlet nozzle and for a second measuring volume to be provided downstream of the first measuring volume at a distance therefrom, the cross section of said second measuring volume perpendicular to the flow direction of the aerosol being smaller than the cross section of the measuring channel.Type: GrantFiled: December 4, 1997Date of Patent: May 30, 2000Assignee: Palas GmbH Partikel-und LasermeBtechnikInventors: Leander Molter, Friedrich Munzinger
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Patent number: 5815265Abstract: For simplifying the optical measurement of a particle flow in a fluid and in particular for eliminating errors, in a device for measuring a particle flow in a fluid with at least one illumination system having a diaphragm and at least one receiver system having a diaphragm, the invention provides for a diaphragm (6a, 11a) to have an aperture (6, 11) with an edge (6b, 11b) constructed convexly towards the interior of the diaphragm aperture (6, 11). According to a method, the particle flow is illuminated and/or observed through a diaphragm aperture with an edge constructed convexly towards its interior and the maximum intensity of the particle flying through a first optical measuring range is measured and account is only taken of the particle if the intensity on flowing through a second measuring range exceeds a specific minimum percentage of the maximum intensity measured for this particle.Type: GrantFiled: July 10, 1997Date of Patent: September 29, 1998Assignee: Palas GmbH Partikel-und LasermeBtechnikInventors: Leander Molter, Friedrich Munzinger
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Patent number: 4967958Abstract: An apparatus for producing a solid aerosol, such as a carbon aerosol, in which aerosol particles are produced by spark discharge via particle-supplying electrodes and the particles are entrained by a gas flow. Electrodes having parallel, adjacent end faces and are prvided with a feed drive moving them synchronously in a direction toward one another.Type: GrantFiled: September 13, 1988Date of Patent: November 6, 1990Assignee: Palas GmbH Partikel-und LasermesstechnikInventors: Christoph Helsper, Leander Molter, Friedrich Munzinger, Werner Sturn
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Patent number: 4764057Abstract: An apparatus for producing a solid aerosol from a heap, with a solids container, a feed piston, a rotary brush, an air intake and an outlet passage. To improve the constancy of the particle output the outlet passage has a non-increasing cross-section over a length thereof, with an increasing depth. In addition, in the outlet path of the solid aerosol it is possible to provide a light detector, which is connected by a regulating device to a drive of the piston.Type: GrantFiled: May 30, 1986Date of Patent: August 16, 1988Assignee: Palas GmbH Partikel-und LasermesstechnikInventors: Leander Molter, Wolfgang Molter, Friedrich Munzinger