Patents by Inventor Kenn Christensen

Kenn Christensen 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: 11846052
    Abstract: The present invention concerns a method of producing a moulded mineral wool insulation product, said method comprising the steps of providing a mixture by mixing mineral fibres with a binder composition, and providing said mixture in a mould form, and then curing the binder, wherein the binder composition comprises at least one hydrocolloid, and then removing the moulded product from the mould form.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: December 19, 2023
    Assignee: ROCKWOOL A/S
    Inventors: Thomas Hjelmgaard, Kenneth Ramsing, Kenn Christensen, Sascha Karallus, Jens Jørren Sørensen, Frederik Johannes Maria Van der Eerden, Arne Kraglund
  • Patent number: 11318708
    Abstract: A panel and a method of making a panel are provided. The panel comprises a cured polymeric foam layer that is formed by application of a foam composition to an edge surface of the panel and then shaped and cured. The panel comprises man-made vitreous fibre or wood wool cement.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: May 3, 2022
    Assignee: ROCKWOOL INTERNATIONAL A/S
    Inventors: Kristian Skovgaard Jørgensen, Kenn Christensen
  • Publication number: 20200071866
    Abstract: The present invention concerns a method of producing a moulded mineral wool insulation product, said method comprising the steps of providing a mixture by mixing mineral fibres with a binder composition, and providing said mixture in a mould form, and then curing the binder, wherein the binder composition comprises at least one hydrocolloid, and then removing the moulded product from the mould form.
    Type: Application
    Filed: November 13, 2017
    Publication date: March 5, 2020
    Inventors: Thomas Hjelmgaard, Kenneth Ramsing, Kenn Christensen, Sascha Karallus, Jens Jørren Sørensen, Frederik Johannes Maria Van der Eerden, Arne Kraglund
  • Publication number: 20190308389
    Abstract: A panel and a method of making a panel are provided. The panel comprises a cured polymeric foam layer that is formed by application of a foam composition to an edge surface of the panel and then shaped and cured. The panel comprises man-made vitreous fibre or wood wool cement.
    Type: Application
    Filed: July 4, 2017
    Publication date: October 10, 2019
    Inventors: Kristian SKOVGAARD JØRGENSEN, Kenn CHRISTENSEN
  • Patent number: 10020784
    Abstract: A TIA includes first and second input terminals for differentially receiving an input current signal, and first and second amplification circuits. The first amplification circuit includes a first Alternating-Current (AC) path and a first Direct-Current (DC) path that are configured to amplify in parallel respective first AC and DC components of the input current signal flowing via the first input terminal, and a first combiner configured to sum the amplified first AC and DC components. The second amplification circuit includes a second AC path and a second DC path that are configured to amplify in parallel respective second AC and DC components of the input current signal flowing via the second input terminal, and a second combiner configured to sum the amplified second AC and DC components. First and second output terminals are configured for outputting an output voltage signal formed between outputs of the first and second combiners.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 10, 2018
    Assignee: MELLANOX TECHNOLOGIES DENMARK APS
    Inventors: Kenn Christensen, Steen Bak Christensen
  • Patent number: 9975270
    Abstract: Method for manufacturing an aerogel-containing composite, said method comprising the steps of: providing fibers, at least some of which are first fibers, such as mineral fibers, polymer fibers, cellulose fibers, or other types of fibers, in an amount of from 3 to 80 wt % of the total weight of starting materials, providing an aerogel particulate material in an amount of from 10 to 75 wt % of the total weight of starting materials, providing a binder in an amount of from 1 to 30 wt % of the total weight of starting materials, suspending the fibers in a primary air flow and suspending the aerogel particulate material in the primary air flow, thereby mixing the suspended aerogel particulate material with the suspended fibers, mixing the binder with the fibers and/or aerogel particulate material before, during or after mixing of the fibers with the aerogel particulate material, collecting the mixture of fibers, aerogel particulate material and binder and pressing and curing the mixture to provide a consolidated c
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: May 22, 2018
    Assignee: Rockwool International A/S
    Inventors: Kenn Christensen, Gorm Rosenberg, Ulrich Bauer, Dhaval Doshi, Elmar Pothmann
  • Patent number: 9260345
    Abstract: The invention relates to a method for manufacturing an insulating composite containing mineral fibers, aerogel and binder. This method implies the step of suspending the fiber webs and aerosol in an air flow thereby disentangling the fiber webs and mixing fibers, aerosol and eventually binder homogeneously. The apparatus described combines spinning of the fibers, collecting them as webs, disentangling the fiber webs in suspended air, mixing the fibers with aerogel and cement as well as pressing and curing the mixture to a consolidated product of density 150 to 800 kg/m3.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: February 16, 2016
    Assignee: Rockwool International A/S
    Inventors: Kristian Skovgard Jorgensen, Ulrich Bauer, Gorm Rosenberg, Kenn Christensen
  • Patent number: 9238333
    Abstract: A method for manufacturing a fiber-containing element, said method comprising the steps of: providing fibers, at least some of which are first fibers, such as mineral fibers, polymer fibers, cellulose fibers, or other types of fibers, in an amount of from 3 to 98 wt % of the total weight of starting materials in the form of a collected web, providing a binder in an amount of from 1 to 30 wt % of the total weight of starting materials, subjecting the collected web of fibers to a disentanglement process, suspending the fibers in a primary air flow, mixing the binder with the fibers before, during or after the disentanglement process, providing a filler, such as a fire retardant, in an amount of 1 to 55 wt % of the total weight of starting materials, adding the filler at any suitable step of the method, such as before, during or after the disentanglement process, collecting the mixture of fibers, filler and binder and pressing and curing the mixture to provide a consolidated composite with a density of from 120
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: January 19, 2016
    Assignee: Rockwool International A/S
    Inventors: Kristian Skovgaard Jorgensen, Gorm Rosenberg, Kenn Christensen
  • Patent number: 9163342
    Abstract: The invention relates to a method for manufacturing a mineral fiber-containing composite and the novel mineral fiber-containing element produced by that method. The invention also relates to an apparatus suitable for carrying out the method of the invention.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: October 20, 2015
    Assignee: ROCKWOOL INTERNATIONAL A/S
    Inventors: Gorm Rosenberg, Kenn Christensen
  • Publication number: 20140087119
    Abstract: Method for manufacturing an aerogel-containing composite, said method comprising the steps of: providing fibres, at least some of which are first fibres, such as mineral fibres, polymer fibres, cellulose fibres, or other types of fibres, in an amount of from 3 to 80 wt % of the total weight of starting materials, providing an aerogel particulate material in an amount of from 10 to 75 wt % of the total weight of starting materials, providing a binder in an amount of from 1 to 30 wt % of the total weight of starting materials, suspending the fibres in a primary air flow and suspending the aerogel particulate material in the primary air flow, thereby mixing the suspended aerogel particulate material with the suspended fibres, mixing the binder with the fibres and/or aerogel particulate material before, during or after mixing of the fibres with the aerogel particulate material, collecting the mixture of fibres, aerogel particulate material and binder and pressing and curing the mixture to provide a consolidated c
    Type: Application
    Filed: July 29, 2011
    Publication date: March 27, 2014
    Applicant: Rockwool International A/S
    Inventors: Kenn Christensen, Gorm Rosenberg, Ulrich Bauer, Dhaval Doshi, Elmar Pothmann
  • Publication number: 20130221567
    Abstract: A method for manufacturing a fibre-containing element, said method comprising the steps of: providing fibres, at least some of which are first fibres, such as mineral fibres, polymer fibres, cellulose fibres, or other types of fibres, in an amount of from 3 to 98 wt % of the total weight of starting materials in the form of a collected web, providing a binder in an amount of from 1 to 30 wt % of the total weight of starting materials, subjecting the collected web of fibres to a disentanglement process, suspending the fibres in a primary air flow, mixing the binder with the fibres before, during or after the disentanglement process, providing a filler, such as a fire retardant, in an amount of 1 to 55 wt % of the total weight of starting materials, adding the filler at any suitable step of the method, such as before, during or after the dientanglement process, collecting the mixture of fibres, filler and binder and pressing and curing the mixture to provide a consolidated composite with a density of from 120 k
    Type: Application
    Filed: July 29, 2011
    Publication date: August 29, 2013
    Applicant: Rockwool International A/S
    Inventors: Kristian Skovgaard Jorgensen, Gorm Rosenberg, Kenn Christensen
  • Patent number: 8450676
    Abstract: An optical receiver suitable for connecting to a photodiode generating a photocurrent with a sensing resistor and a diode circuit in parallel with the sensing resistor to limit the voltage across the sensing resistor. The diode circuit allows for a larger resistor providing greater sensitivity without risking violating the necessary headroom available to the photodiode.
    Type: Grant
    Filed: December 12, 2009
    Date of Patent: May 28, 2013
    Assignee: Iptronics A/S
    Inventor: Kenn Christensen
  • Publication number: 20130119294
    Abstract: Method for manufacturing an aerogel-containing composite, said method comprising the steps of: providing fibres, at least some of which are first fibres, such as mineral fibres, polymer fibres, cellulose fibres, or other types of fibres, in an amount of from 3 to 80 wt % of the total weight of starting materials, providing an aerogel particulate material in an amount of from 10 to 75 wt % of the total weight of starting materials, providing a binder in an amount of from 1 to 30 wt % of the total weight of starting materials, suspending the fibres in a primary air flow and suspending the aerogel particulate material in the primary air flow, thereby mixing the suspended aerogel particulate material with the suspended fibres, mixing the binder with the fibres and/or aerogel particulate material before, during or after mixing of the fibres with the aerogel particulate material, providing a filler, such as a fire retardant, in an amount of 1 to 55 wt of the total weight of starting materials, adding the filler at
    Type: Application
    Filed: July 29, 2011
    Publication date: May 16, 2013
    Applicant: Rockwool International A/S
    Inventors: Kenn Christensen, Kristian Skovgaard Jorgensen, Gorm Rosenberg, Ulrich Bauer, Dhaval Doshi, Elmar Pothmann
  • Patent number: 8276622
    Abstract: The invention relates to a metal sheet (15) ventilation/smoke exhaust duct section (10) for incorporation into a metal sheet ventilation/smoke exhaust duct, said metal sheets (15) being covered on the outside by a heat insulating material (20) and said duct section (10) including elongated stiffening bar members (30) located on the outside of the duct and attached to said metal sheets (15), the invention being characterized in said bar members (30) being located at a distance from said metal sheets (15), said bar members (30) being attached to said metal sheets (15) at discrete locations along the length of the bar members (30).
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: October 2, 2012
    Assignee: Rockwool International A/S
    Inventors: Kurt Munk Pedersen, Kenn Christensen, Lars Elmekilde Hansen
  • Publication number: 20120190262
    Abstract: The invention relates to a method for manufacturing a mineral fiber-containing composite and the novel mineral fiber-containing element produced by that method. The invention also relates to an apparatus suitable for carrying out the method of the invention.
    Type: Application
    Filed: July 30, 2010
    Publication date: July 26, 2012
    Inventors: Gorm Rosenberg, Kenn Christensen
  • Publication number: 20120187323
    Abstract: The invention relates to a method for manufacturing an insulating composite containing mineral fibers, aerogel and binder. This method implies the step of suspending the fiber webs and aerosol in an air flow thereby disentangling the fiber webs and mixing fibers, aerosol and eventually binder homogeneously. The apparatus described combines spinning of the fibers, collecting them as webs, disentangling the fiber webs in suspended air, mixing the fibers with aerogel and cement as well as pressing and curing the mixture to a consolidated product of density 150 to 800 kg/m3.
    Type: Application
    Filed: July 30, 2010
    Publication date: July 26, 2012
    Inventors: Kristian Skovgard Jorgensen, Ulrich Bauer, Gorm Rosenberg, Kenn Christensen
  • Patent number: 8018286
    Abstract: The present invention relates to an integrated electrical circuit in particular a receiver or driver suitable for broadband communication, such as optical interconnect. The circuit comprises two amplifiers which share current supply wherein the integrated circuit is arranged so that cross talk via this current supply is avoided over a large range of frequencies.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: September 13, 2011
    Assignee: Iptronics A/S
    Inventor: Kenn Christensen
  • Publication number: 20110139960
    Abstract: An optical receiver suitable for connecting to a photodiode generating a photocurrent with a sensing resistor and a diode circuit in parallel with the sensing resistor to limit the voltage across the sensing resistor. The diode circuit allows for a larger resistor providing greater sensitivity without risking violating the necessary headroom available to the photodiode.
    Type: Application
    Filed: December 12, 2009
    Publication date: June 16, 2011
    Inventor: Kenn Christensen
  • Publication number: 20100214019
    Abstract: The present invention relates to an integrated electrical circuit in particular a receiver or driver suitable for broadband communication, such as optical interconnect. The circuit comprises two amplifiers which share current supply wherein the integrated circuit is arranged so that cross talk via this current supply is avoided over a large range of frequencies.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 26, 2010
    Applicant: IPtronics A/S
    Inventor: Kenn CHRISTENSEN
  • Publication number: 20090165776
    Abstract: The invention relates to a metal sheet (15) ventilation/smoke exhaust duct section (10) for incorporation into a metal sheet ventilation/smoke exhaust duct, said metal sheets (15) being covered on the outside by a heat insulating material (20) and said duct section (10) including elongated stiffening bar members (30) located on the outside of the duct and attached to said metal sheets (15), the invention being characterised in said bar members (30) being located at a distance from said metal sheets (15), said bar members (30) being attached to said metal sheets (15) at discrete locations along the length of the bar members (30).
    Type: Application
    Filed: June 6, 2007
    Publication date: July 2, 2009
    Inventors: Kurt Munk Pedersen, Kenn Christensen, Lars Elmekilde Hansen