Patents by Inventor Frédrik Danielsson
Frédrik Danielsson 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: 10203292Abstract: A method for estimating a heating value of a biological material is disclosed. The method comprises: correlating amounts of radiation transmitted through a number of different reference materials, said radiation being electromagnetic radiation of at least two energy levels, with heating values for said reference materials obtained by calorimeter measurements; irradiating the biological material (102) with electromagnetic radiation of said at least two different energy levels;and measuring the amount of radiation (109a-c) transmitted through said biological material at said energy levels. The method further comprises determining, for each energy level, a transmission value through the biological material based on the radiation through said biological material; and determining, based on said determined transmission values and said correlation, an estimate of the heating value of said biological material. A corresponding apparatus (100) is also disclosed.Type: GrantFiled: June 28, 2012Date of Patent: February 12, 2019Assignee: MANTEX ABInventors: Ragnar Kullenberg, Fredrik Danielsson, Eric Landstrom
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Method and apparatus for measurement of concentration of a specific analyte in a biological material
Patent number: 9588065Abstract: A method and apparatus for determining the concentration of a specific analyte in a sample of biological material are disclosed. The sample is placed in a sample container (10) which provides at least two radiation paths (14) with different lengths through the sample container (10), and is sequentially irradiated with electromagnetic radiation, e.g. X-rays. The amount of radiation penetrating the sample is detected, and absorbance is determined based on the detected radiation. During irradiation, the sample container (10) is moved in relation to the radiation source (1) and detector (5) so that absorbance measurements at different path-lengths are acquired. A regression line from the absorbance values and path lengths is determined, such that a slope of the regression line is obtained, and based on this slope, the concentration of the specific analyte is determined.Type: GrantFiled: June 12, 2013Date of Patent: March 7, 2017Assignee: Mantex ABInventors: Ragnar Kullenberg, Ralf Torgrip, Fredrik Danielsson, Eric Landström -
Patent number: 9442081Abstract: A method for measuring ash content in a biological material in an automated or semi-automated procedure is disclosed. The method includes the steps of scanning the biological material with electromagnetic radiation of at least two different energy levels, determining the amount of radiation transmitted through the sample of the biological material at the energy levels and estimating the moisture content in the biological material based on a relationship between the determined amount of radiation transmitted through the biological material. Thereafter, the ash content in the biological material is estimated, based on the estimated moisture content in the biological material, and average attenuation coefficients for the biological material without moisture, attenuation coefficients for a combustible part of the biological material and attenuation coefficients for ash of the biological material at the energy levels. A corresponding apparatus is also disclosed.Type: GrantFiled: January 26, 2011Date of Patent: September 13, 2016Assignee: MANTEX ABInventors: Erik Odén, Ragnar Kullenberg, Anders Ullberg, Fredrik Danielsson
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METHOD AND APPARATUS FOR MEASUREMENT OF CONCENTRATION OF A SPECIFIC ANALYTE IN A BIOLOGICAL MATERIAL
Publication number: 20150323475Abstract: A method and apparatus for determining the concentration of a specific analyte in a sample of biological material are disclosed. The sample is placed in a sample container (10) which provides at least two irradiation paths (14) with different lengths through the sample container (10), and is sequentially irradiated with electromagnetic radiation, e.g. X-rays. The amount of radiation penetrating the sample is detected, and absorbance is determined based on the detected radiation. During irradiation, the sample container (10) is moved in relation to the irradiation source (1) and detector (5) so that absorbance measurements at different path-lengths are acquired. A regression line from the absorbance values and path lengths is determined, such that a slope of the regression line is obtained, and based on this slope, the concentration of the specific analyte is determined.Type: ApplicationFiled: June 12, 2013Publication date: November 12, 2015Inventors: Ragnar KULLENBERG, Ralf TORGRIP, Fredrik DANIELSSON, Eric LANDSTRÖM -
Patent number: 9063061Abstract: A method for detecting an anomaly in a biological material is disclosed, including the steps of: irradiating the biological material with electromagnetic radiation of at least two different energy levels; measuring the amount of radiation transmitted through the biological material; and determining, for each energy level, a transmission value. Before or after irradiation of the biological material, a reference material of a predetermined thickness is irradiated and the amount of radiation transmitted is determined. For each energy level, a transmission calibration reference value is determined and a calibrated transmission value is determined for the biological material and the calibration reference. A material value based on a relationship between the calibrated transmission value and the presence of an anomaly in the biological material is determined by comparing the determined and expected material values for the biological material. A corresponding apparatus is also disclosed.Type: GrantFiled: December 29, 2010Date of Patent: June 23, 2015Assignee: MANTEX ABInventors: Erik Oden, Ragnar Kullenberg, Anders Ullberg, Fredrik Danielsson
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Patent number: 8811569Abstract: A method and an apparatus for measuring dry mass flow rate for a biological material. The method steps include conveying the biological material through a measuring station, scanning the biological material with electromagnetic radiation of at least two different energy levels, determining the amount of radiation transmitted through the biological material at said two energy levels, and summing, for each of sad two energy levels, the radiation transmission values over a time frame to summed radiation transmission values. Further, a wet dry mass flow rate is estimated based on the summed radiation transmission values for said two energy level. The moisture content of the biological material is estimated based on the amounts of radiation transmitted through the biological material. The estimated wet dry mass flow rate is scaled in accordance with the estimated moisture content of the biological material, thereby providing an estimate of the dry mass flow rate.Type: GrantFiled: October 16, 2012Date of Patent: August 19, 2014Assignee: Mantex ABInventors: Ragner Kullenberg, Eric Landstrom, Fredrik Danielsson, Christian Bergstrand
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Publication number: 20140226694Abstract: A method for estimating a heating value of a biological material is disclosed. The method comprises: correlating amounts of radiation transmitted through a number of different reference materials, said radiation being electromagnetic radiation of at least two energy levels, with heating values for said reference materials obtained by calorimeter measurements; irradiating the biological material (102) with electromagnetic radiation of said at least two different energy levels;and measuring the amount of radiation (109a-c) transmitted through said biological material at said energy levels. The method further comprises determining, for each energy level, a transmission value through the biological material based on the radiation through said biological material; and determining, based on said determined transmission values and said correlation, an estimate of the heating value of said biological material. A corresponding apparatus (100) is also disclosed.Type: ApplicationFiled: June 28, 2012Publication date: August 14, 2014Applicant: MANTEX ABInventors: Ragnar Kullenberg, Fredrik Danielsson, Eric Landstrom
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Patent number: 8515008Abstract: An apparatus and a method for X-ray fluorescence analysis of a mineral sample is disclosed. The apparatus comprises an X-ray source (2) for generating an X-ray beam to irradiate the mineral sample; at least one fluorescence detector (4,5) for measuring fluorescent radiation emitted by the mineral sample when irradiated by the X-ray beam; and a processing unit for providing an analysis of the mineral sample based on the measurements made by the at least one fluorescence detector (4,5). Further, the apparatus comprises a sample container (3) arranged to hold the mineral sample during the irradiation, wherein the sample container is arranged to provide at least two different irradiation paths through said mineral sample during irradiation. An advantage with this arrangement is that it enables analysis of elements having a wide range of atomic numbers in a single sample with improved reliability and accuracy.Type: GrantFiled: February 2, 2009Date of Patent: August 20, 2013Assignee: Orexplore ABInventors: Anders Ullberg, Erik Odén, Ragnar Kullenberg, Frédrik Danielsson
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Publication number: 20130195243Abstract: A method for measuring ash content in a biological material in an automated or semi-automated procedure is disclosed. The method includes the steps of scanning the biological material with electromagnetic radiation of at least two different energy levels, determining the amount of radiation transmitted through the sample of the biological material at the energy levels and estimating the moisture content in the biological material based on a relationship between the determined amount of radiation transmitted through the biological material. Thereafter, the ash content in the biological material is estimated, based on the estimated moisture content in the biological material, and average attenuation coefficients for the biological material without moisture, attenuation coefficients for a combustible part of the biological material and attenuation coefficients for ash of the biological material at the energy levels. A corresponding apparatus is also disclosed.Type: ApplicationFiled: January 26, 2011Publication date: August 1, 2013Applicant: MANTEX ABInventors: Erik Odén, Ragnar Kullenberg, Anders Ullberg, Fredrik Danielsson
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Patent number: 8467496Abstract: A method for measuring moisture content in a biological material in an automated procedure is disclosed. The method comprises the step of: providing a reference database for a plurality of different material types with known moisture content. Further, a sample of biological material, such as chips of wood, pulp, grain, crop or sugar canes, are scanned with electromagnetic radiation of at least two different energy levels and the amount of radiation transmitted through the sample of the biological material is determined at said two energy levels. Subsequently, a material type in the reference database most resembling the biological material of the biological material of the sample is identified, and the moisture content of the sample of biological material is determined based on the identified material type and the determined amounts of radiation transmitted through the sample.Type: GrantFiled: October 1, 2009Date of Patent: June 18, 2013Assignee: Mantex ABInventors: Anders Ullberg, Ragnar Kullenberg, Erik Odén, Fredrik Danielsson
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Publication number: 20130003925Abstract: A method for detecting an anomaly in a biological material is disclosed, including the steps of: irradiating the biological material with electromagnetic radiation of at least two different energy levels; measuring the amount of radiation transmitted through the biological material; and determining, for each energy level, a transmission value. Before or after irradiation of the biological material, a reference material of a predetermined thickness is irradiated and the amount of radiation transmitted is determined. For each energy level, a transmission calibration reference value is determined and a calibrated transmission value is determined for the biological material and the calibration reference. A material value based on a relationship between the calibrated transmission value and the presence of an anomaly in the biological material is determined by comparing the determined and expected material values for the biological material. A corresponding apparatus is also disclosed.Type: ApplicationFiled: December 29, 2010Publication date: January 3, 2013Applicant: MANTEX ABInventors: Erik Oden, Ragnar Kullenberg, Anders Ullberg, Fredrik Danielsson
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Publication number: 20110044426Abstract: An apparatus and a method for X-ray fluorescence analysis of a mineral sample is disclosed. The apparatus comprises an X-ray source (2) for generating an X-ray beam to irradiate the mineral sample; at least one fluorescence detector (4,5) for measuring fluorescent radiation emitted by the mineral sample when irradiated by the X-ray beam; and a processing unit for providing an analysis of the mineral sample based on the measurements made by the at least one fluorescence detector (4,5). Further, the apparatus comprises a sample container (3) arranged to hold the mineral sample during the irradiation, wherein the sample container is arranged to provide at least two different irradiation paths through said mineral sample during irradiation. An advantage with this arrangement is that it enables analysis of elements having a wide range of atomic numbers in a single sample with improved reliability and accuracy.Type: ApplicationFiled: February 2, 2009Publication date: February 24, 2011Inventors: Anders Ullberg, Erik Oden, Ragnar Kullenberg, Fredrik Danielsson