Patents Assigned to GasPorOx AB
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Patent number: 11674898Abstract: An system and method is disclosed for determining a concentration of at least one gas in a container. The system and method includes detecting light reflected by a surface inside or behind the container, or light refracted or scattered by the container, with a detector, wherein the detector provides a first signal related to an intensity of the reflected light, and a second signal related to a position of reflected light being detected. The first and second signals are used for estimating a concentration of the at least one gas inside the container.Type: GrantFiled: October 1, 2019Date of Patent: June 13, 2023Assignee: GasPorOx ABInventors: Märta Lewander Xu, Patrik Lundin
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Patent number: 11340161Abstract: An apparatus or method for measurement of multiple gas concentrations. The apparatus comprises a multi-wavelength laser module, and a multi-layered/multi-band detector.Type: GrantFiled: April 30, 2018Date of Patent: May 24, 2022Assignee: GasPorOx ABInventors: Märta Lewander Xu, Patrik Lundin, Johannes Swartling
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Patent number: 10928314Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: GrantFiled: October 5, 2017Date of Patent: February 23, 2021Assignee: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
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Patent number: 10466170Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: GrantFiled: October 5, 2017Date of Patent: November 5, 2019Assignee: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
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Patent number: 10101239Abstract: A method and system is disclosed for determining the integrity of a closed container. The method and system includes the steps of positioning the container in a surrounding, changing a gas pressure, a gas composition, a gas concentration, or any combination of gas pressure, gas concentration and gas composition, in the surrounding. Thereafter subjecting the container to an optical sensor, non-intrusively, the sensor being sensitive to at least one gas, and the sensor is configured for detecting the at least one gas inside the container. Reading a signal from the optical sensor related to a gas pressure, a gas concentration, a gas composition, or any combination of gas pressure, gas concentration, and gas composition, inside the container. The behavior of the signal being indicative of breach in integrity of the container.Type: GrantFiled: April 4, 2016Date of Patent: October 16, 2018Assignee: GASPOROX ABInventors: Patrik Lundin, Daniel Karlsson, Märta Lewander Xu, Johannes Swartling, Joachim Dillner
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Publication number: 20180188164Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: ApplicationFiled: October 5, 2017Publication date: July 5, 2018Applicant: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
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Publication number: 20180100797Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: ApplicationFiled: October 5, 2017Publication date: April 12, 2018Applicant: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
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Publication number: 20180095000Abstract: A method and system is disclosed for determining the integrity of a closed container. The method and system includes the steps of positioning the container in a surrounding, changing a gas pressure, a gas composition, a gas concentration, or any combination of gas pressure, gas concentration and gas composition, in the surrounding. Thereafter subjecting the container to an optical sensor, non-intrusively, the sensor being sensitive to at least one gas, and the sensor is configured for detecting the at least one gas inside the container. Reading a signal from the optical sensor related to a gas pressure, a gas concentration, a gas composition, or any combination of gas pressure, gas concentration, and gas composition, inside the container. The behaviour of the signal being indicative of breach in integrity of the container.Type: ApplicationFiled: April 4, 2016Publication date: April 5, 2018Applicant: GASPOROX ABInventors: Patrik LUNDIN, Daniel KARLSSON, Märta LEWANDER XU, Johannes SWARTLING, Joachim DILLNER
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Patent number: 9841374Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: GrantFiled: May 27, 2014Date of Patent: December 12, 2017Assignee: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
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Publication number: 20160169796Abstract: A system and method for measuring a concentration of a gas in a container having at least one flexible or variable side or wall. The system and method comprising creating a determinable optical path length through the container having a shape. Positioning a light source head and a detector head against at least one of the least one flexible or variable side or wall. Transmitting a light signal between the light source head and the detector head through the determinable optical path length. Determining the concentration of the gas in the container based on detected light and the determinable optical path length.Type: ApplicationFiled: May 27, 2014Publication date: June 16, 2016Applicant: GasPorOx ABInventors: Märta Lewander Xu, Johannes Swartling, Daniel Karlsson, Patrik Lundin, Joan Sandberg
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Patent number: 9182345Abstract: A method and apparatus are disclosed for assessment of a sealed package. Light is emitted from a narrow-band laser source towards said package from outside of said package. An absorption signal of said light scattered in said package is measured, wherein said absorption is caused by said at least one gas when said light is scattered and travels in said sealed package. Measuring is made outside of said package, whereby said assessment is non-intrusive with regard to said package. It is determined if a deviation exists from a predetermined, expected gas composition and/or concentration of said at least one gas within said sealed package based on said measured absorption signal. Thus sealing of said package for said gas is detected.Type: GrantFiled: January 10, 2014Date of Patent: November 10, 2015Assignee: GasPorOx ABInventors: Sune Svanberg, Anders Johnsson, Märta Lewander, Annika Olsson
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Patent number: 8638439Abstract: A method and apparatus are disclosed for assessment of a sealed package. Light is emitted from a narrow-band laser source towards said package from outside of said package. An absorption signal of said light scattered in said package is measured, wherein said absorption is caused by said at least one gas when said light is scattered and travels in said sealed package. Measuring is made outside of said package, whereby said assessment is non-intrusive with regard to said package. It is determined if a deviation exists from a predetermined, expected gas composition and/or concentration of said at least one gas within said sealed package based on said measured absorption signal. Thus sealing of said package for said gas is detected.Type: GrantFiled: May 11, 2010Date of Patent: January 28, 2014Assignee: GasPorOx ABInventors: Sune Svanberg, Anders Johnsson, Märta Lewander, Annika Olsson
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Patent number: 8190240Abstract: A device and method for gas measurements in body cavities are provided. These may be any body cavity containing a free gas, where there is an interest in detecting and/or measuring the concentration of said free gas by non-invasive or minimally invasive method. According to an exemplary embodiment measurement of free oxygen in cranium cavities is performed by scattering media absorption spectroscopy, and in particular variations of such oxygen. This is particularly useful for diagnostic purposes based on the measurements, for instance for detecting sinusitis or the like.Type: GrantFiled: April 18, 2006Date of Patent: May 29, 2012Assignee: GasPorOx ABInventors: Sune Svanberg, Linda Person, Katarina Svanberg
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Patent number: 8067244Abstract: A method and device for investigation of a surface layer of a material. The material without surface layer is exposed for a gas and the penetration of the gas into the material is measured. Then the surface layer is applied to the material. Finally, the material including the surface layer is exposed for the gas and the penetration of the gas into the material through the surface layer is measured. The measurement of the passage of the gas into the material is performed by a method comprising measurement of light absorption by the gas by absorption spectroscopy.Type: GrantFiled: November 2, 2004Date of Patent: November 29, 2011Assignee: GasPorOx ABInventors: Sune Svanberg, Mikael Sjoholm, Gabriel Somes-Falean