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).

  • Patent number: 10053252
    Abstract: 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: Grant
    Filed: August 21, 2017
    Date of Patent: August 21, 2018
    Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Roger Lindgren, Håkan Mellbin, Jonas Dickner, Fredrik Hansen
  • Patent number: 9969513
    Abstract: 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: Grant
    Filed: January 16, 2015
    Date of Patent: May 15, 2018
    Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Jonas Dickner, Håkan Mellbin, Roger Lindgren, Fredrik Hansen
  • Patent number: 9850014
    Abstract: 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: Grant
    Filed: January 16, 2015
    Date of Patent: December 26, 2017
    Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Jonas Dickner, Håkan Mellbin, Roger Lindgren, Fredrik Hansen
  • Publication number: 20170341792
    Abstract: 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: Application
    Filed: August 21, 2017
    Publication date: November 30, 2017
    Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Roger LINDGREN, Håkan MELLBIN, Jonas DICKNER, Fredrik HANSEN
  • Patent number: 9758268
    Abstract: 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: Grant
    Filed: June 19, 2014
    Date of Patent: September 12, 2017
    Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Roger Lindgren, Hakan Mellbin, Jonas Dickner, Fredrik Hansen
  • Publication number: 20170183114
    Abstract: 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: Application
    Filed: January 16, 2015
    Publication date: June 29, 2017
    Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Jonas DICKNER, Häkan MELLBIN, Roger LINDGREN, Fredrik HANSEN
  • Publication number: 20170166340
    Abstract: 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: Application
    Filed: January 16, 2015
    Publication date: June 15, 2017
    Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Jonas DICKNER, Håkan MELLBIN, Roger LINDGREN, Fredrik HANSEN
  • Patent number: 9675718
    Abstract: 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: Grant
    Filed: November 29, 2013
    Date of Patent: June 13, 2017
    Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Lars-Ake Naslund, Kristoffer Bengtsson, Hakan Mellbin, Hans Hallstadius, Fredrik Hansen, Marco Lavalle
  • Publication number: 20160152365
    Abstract: 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: Application
    Filed: June 19, 2014
    Publication date: June 2, 2016
    Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Roger LINDGREN, Hakan MELLBIN, Jonas DICKNER, Fredrik HANSEN
  • Publication number: 20150306261
    Abstract: 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: Application
    Filed: November 29, 2013
    Publication date: October 29, 2015
    Applicant: Tetra Laval Holdings & Finance S.A.
    Inventors: Lars-Ake NASLUND, Kristoffer BENGTSSON, Hakan MELLBIN, HANS HALLSTADIUS, Fredrik HANSEN, Marco LAVALLE
  • Patent number: 7175731
    Abstract: 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: Grant
    Filed: April 18, 2002
    Date of Patent: February 13, 2007
    Assignee: Panorama Press AB
    Inventors: Christian Hansen, Fredrik Hansen
  • Publication number: 20040134320
    Abstract: 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: Application
    Filed: October 23, 2003
    Publication date: July 15, 2004
    Inventors: Christian Hansen, Fredrik Hansen