Patents by Inventor Fredrik Hansen
Fredrik Hansen 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: 10053252Abstract: A method for sterilizing packaging material comprises an emitter that is adapted to emit charge carriers, in particular electrons, wherein the charge carriers form at least one cloud, and wherein the emitter and the packaging material are moved relative to each other so that a flow of a gaseous medium is established in between the emitter and the packaging material. The method comprises the steps of: controlling a movement profile between the emitter and the packaging material; sterilizing the flow of the medium in between the emitter and the packaging material by adjusting the movement profile so that the flow of the medium in between the emitter and the packaging material is sterilized. Also disclosed is a device for sterilizing packaging material.Type: GrantFiled: August 21, 2017Date of Patent: August 21, 2018Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Roger Lindgren, Håkan Mellbin, Jonas Dickner, Fredrik Hansen
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Patent number: 9969513Abstract: The invention relates to a device for sterilization of the interior surface of packaging containers with electron beam, comprising an emitter provided with an electron exit window. The emitter is adapted to emit charge carriers, such as electrons, through the electron exit window, said electrons forming an electron cloud. The device comprises at least one outlet adapted to provide a flow of sterile gaseous medium adapted to maintain a local aseptic zone around at least an emitter portion including the electron exit window, thus preventing any flow of medium from outside the local aseptic zone from coming into the local aseptic zone. The invention also relates to a method.Type: GrantFiled: January 16, 2015Date of Patent: May 15, 2018Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Jonas Dickner, Håkan Mellbin, Roger Lindgren, Fredrik Hansen
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Patent number: 9850014Abstract: The invention relates to a device for sterilization of the interior surface of packaging containers with electron beam, comprising an emitter provided with an electron exit window. The emitter is adapted to emit charge carriers, such as electrons, through the electron exit window, said electrons forming an electron cloud. The device comprises at least one outlet for conditioning at least a sterilized volume in the packaging container. The outlet is adapted to provide a flow of a sterile gaseous medium, thereby generating a first condition at least inside the sterilized volume of the packaging container. The first condition is adapted to prevent any flow of medium from outside the sterilized volume from coming into the sterilized volume without first being sterilized by the electron cloud. The invention also relates to a method.Type: GrantFiled: January 16, 2015Date of Patent: December 26, 2017Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Jonas Dickner, Håkan Mellbin, Roger Lindgren, Fredrik Hansen
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Publication number: 20170341792Abstract: A method for sterilizing packaging material comprises an emitter that is adapted to emit charge carriers, in particular electrons, wherein the charge carriers form at least one cloud, and wherein the emitter and the packaging material are moved relative to each other so that a flow of a gaseous medium is established in between the emitter and the packaging material. The method comprises the steps of: controlling a movement profile between the emitter and the packaging material; sterilizing the flow of the medium in between the emitter and the packaging material by adjusting the movement profile so that the flow of the medium in between the emitter and the packaging material is sterilized. Also disclosed is a device for sterilizing packaging material.Type: ApplicationFiled: August 21, 2017Publication date: November 30, 2017Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Roger LINDGREN, Håkan MELLBIN, Jonas DICKNER, Fredrik HANSEN
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Patent number: 9758268Abstract: The invention relates to a method for sterilizing packaging material, comprising an emitter that is adapted to emit charge carriers, in particular electrons, wherein the charge carriers form at least one cloud, and wherein the emitter and the packaging material are moved relative to each other so that a flow of a gaseous medium is established in between the emitter and the packaging material. The method comprises the steps of: controlling a movement profile between the emitter and the packaging material; sterilizing the flow of the medium in between the emitter and the packaging material by adjusting the movement profile so that the flow of the medium in between the emitter and the packaging material is sterilized. Also disclosed is a device for sterilizing packaging material.Type: GrantFiled: June 19, 2014Date of Patent: September 12, 2017Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Roger Lindgren, Hakan Mellbin, Jonas Dickner, Fredrik Hansen
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Publication number: 20170183114Abstract: The invention relates to a device for sterilization of the interior surface of packaging containers with electron beam, comprising an emitter provided with an electron exit window. The emitter is adapted to emit charge carriers, such as electrons, through the electron exit window, said electrons forming an electron cloud. The device comprises at least one outlet adapted to provide a flow of sterile gaseous medium adapted to maintain a local aseptic zone around at least an emitter portion including the electron exit window, thus preventing any flow of medium from outside the local aseptic zone from coming into the local aseptic zone. The invention also relates to a method.Type: ApplicationFiled: January 16, 2015Publication date: June 29, 2017Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Jonas DICKNER, Häkan MELLBIN, Roger LINDGREN, Fredrik HANSEN
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Publication number: 20170166340Abstract: The invention relates to a device for sterilization of the interior surface of packaging containers with electron beam, comprising an emitter provided with an electron exit window. The emitter is adapted to emit charge carriers, such as electrons, through the electron exit window, said electrons forming an electron cloud. The device comprises at least one outlet for conditioning at least a sterilized volume in the packaging container. The outlet is adapted to provide a flow of a sterile gaseous medium, thereby generating a first condition at least inside the sterilized volume of the packaging container. The first condition is adapted to prevent any flow of medium from outside the sterilized volume from coming into the sterilized volume without first being sterilized by the electron cloud. The invention also relates to a method.Type: ApplicationFiled: January 16, 2015Publication date: June 15, 2017Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Jonas DICKNER, Håkan MELLBIN, Roger LINDGREN, Fredrik HANSEN
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Patent number: 9675718Abstract: The present invention relates to an irradiation device for irradiating objects with electron beams. The irradiation device comprises at least one electron beam emitter having an electron exit window and at least one sensor device for detecting a first dose control parameter of the electron beam. The electron beam emitter is adapted to move past the sensor device such that the electron beam emitted from the electron exit window passes within a sensing area of the sensor device. The sensor device comprises more than one conductor each having a conductor surface in the sensing area of the sensor device, and the conductor surface is adapted to be exposed to electrons of the electron beam. The invention also relates to a method.Type: GrantFiled: November 29, 2013Date of Patent: June 13, 2017Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Lars-Ake Naslund, Kristoffer Bengtsson, Hakan Mellbin, Hans Hallstadius, Fredrik Hansen, Marco Lavalle
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Publication number: 20160152365Abstract: The invention relates to a method for sterilizing packaging material, comprising an emitter that is adapted to emit charge carriers, in particular electrons, wherein the charge carriers form at least one cloud, and wherein the emitter and the packaging material are moved relative to each other so that a flow of a gaseous medium is established in between the emitter and the packaging material. The method comprises the steps of: controlling a movement profile between the emitter and the packaging material; sterilizing the flow of the medium in between the emitter and the packaging material by adjusting the movement profile so that the flow of the medium in between the emitter and the packaging material is sterilized. Also disclosed is a device for sterilizing packaging material.Type: ApplicationFiled: June 19, 2014Publication date: June 2, 2016Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Roger LINDGREN, Hakan MELLBIN, Jonas DICKNER, Fredrik HANSEN
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Publication number: 20150306261Abstract: The present invention relates to an irradiation device for irradiating objects with electron beams. The irradiation device comprises at least one electron beam emitter having an electron exit window and at least one sensor device for detecting a first dose control parameter of the electron beam. The electron beam emitter is adapted to move past the sensor device such that the electron beam emitted from the electron exit window passes within a sensing area of the sensor device. The sensor device comprises more than one conductor each having a conductor surface in the sensing area of the sensor device, and the conductor surface is adapted to be exposed to electrons of the electron beam. The invention also relates to a method.Type: ApplicationFiled: November 29, 2013Publication date: October 29, 2015Applicant: Tetra Laval Holdings & Finance S.A.Inventors: Lars-Ake NASLUND, Kristoffer BENGTSSON, Hakan MELLBIN, HANS HALLSTADIUS, Fredrik HANSEN, Marco LAVALLE
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Patent number: 7175731Abstract: The present invention relates to a method of manufacturing tearable sheets, wherewith each sheet obtains a perfectly smooth tear edge when torn-off. The method comprises the steps of: punching each sheet transversely of the fibers of said sheet from a first side of the sheet to an extend corresponding to a firs portion of the thickness of the sheet; and punching each sheet transversely of the fibers of said sheet from a second side of the sheet to an extent corresponding to a second portion of the thickness of said sheet; wherein the sum of said first thickness portion and said second thickness portion is smaller than the thickness of the sheet, and wherein the second punching operation is performed parallel with the first punching operation but displaced in a plane parallel with said first and said second sides of the sheet, said displacement being adapted for tear-off purposes.Type: GrantFiled: April 18, 2002Date of Patent: February 13, 2007Assignee: Panorama Press ABInventors: Christian Hansen, Fredrik Hansen
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Publication number: 20040134320Abstract: The present invention relates to a method of manufacturing tearable sheets, wherewith each sheet obtains a perfectly smooth tear edge when torn-off. The method comprises the steps of: punching each sheet transversely of the fibres of said sheet from a first side of the sheet to an extend corresponding to a firs portion of the thickness of the sheet; and punching each sheet transversely of the fibres of said sheet from a second side of the sheet to an extent corresponding to a second portion of the thickness of said sheet; wherein the sum of said first thickness portion and said second thickness portion is smaller than the thickness of the sheet, and wherein the second punching operation is performed parallel with the first punching operation but displaced in a plane parallel with said first and said second sides of the sheet, said displacement being adapted for tear-off purposes.Type: ApplicationFiled: October 23, 2003Publication date: July 15, 2004Inventors: Christian Hansen, Fredrik Hansen