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).
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Patent number: 11846052Abstract: 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: GrantFiled: November 13, 2017Date of Patent: December 19, 2023Assignee: ROCKWOOL A/SInventors: Thomas Hjelmgaard, Kenneth Ramsing, Kenn Christensen, Sascha Karallus, Jens Jørren Sørensen, Frederik Johannes Maria Van der Eerden, Arne Kraglund
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Patent number: 11318708Abstract: 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: GrantFiled: July 4, 2017Date of Patent: May 3, 2022Assignee: ROCKWOOL INTERNATIONAL A/SInventors: Kristian Skovgaard Jørgensen, Kenn Christensen
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Publication number: 20200071866Abstract: 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: ApplicationFiled: November 13, 2017Publication date: March 5, 2020Inventors: Thomas Hjelmgaard, Kenneth Ramsing, Kenn Christensen, Sascha Karallus, Jens Jørren Sørensen, Frederik Johannes Maria Van der Eerden, Arne Kraglund
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Publication number: 20190308389Abstract: 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: ApplicationFiled: July 4, 2017Publication date: October 10, 2019Inventors: Kristian SKOVGAARD JØRGENSEN, Kenn CHRISTENSEN
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Patent number: 10020784Abstract: 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: GrantFiled: February 27, 2017Date of Patent: July 10, 2018Assignee: MELLANOX TECHNOLOGIES DENMARK APSInventors: Kenn Christensen, Steen Bak Christensen
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Patent number: 9975270Abstract: 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 cType: GrantFiled: July 29, 2011Date of Patent: May 22, 2018Assignee: Rockwool International A/SInventors: Kenn Christensen, Gorm Rosenberg, Ulrich Bauer, Dhaval Doshi, Elmar Pothmann
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Patent number: 9260345Abstract: 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: GrantFiled: July 30, 2010Date of Patent: February 16, 2016Assignee: Rockwool International A/SInventors: Kristian Skovgard Jorgensen, Ulrich Bauer, Gorm Rosenberg, Kenn Christensen
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Patent number: 9238333Abstract: 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 120Type: GrantFiled: July 29, 2011Date of Patent: January 19, 2016Assignee: Rockwool International A/SInventors: Kristian Skovgaard Jorgensen, Gorm Rosenberg, Kenn Christensen
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Patent number: 9163342Abstract: 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: GrantFiled: July 30, 2010Date of Patent: October 20, 2015Assignee: ROCKWOOL INTERNATIONAL A/SInventors: Gorm Rosenberg, Kenn Christensen
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Publication number: 20140087119Abstract: 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 cType: ApplicationFiled: July 29, 2011Publication date: March 27, 2014Applicant: Rockwool International A/SInventors: Kenn Christensen, Gorm Rosenberg, Ulrich Bauer, Dhaval Doshi, Elmar Pothmann
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Publication number: 20130221567Abstract: 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 kType: ApplicationFiled: July 29, 2011Publication date: August 29, 2013Applicant: Rockwool International A/SInventors: Kristian Skovgaard Jorgensen, Gorm Rosenberg, Kenn Christensen
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Patent number: 8450676Abstract: 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: GrantFiled: December 12, 2009Date of Patent: May 28, 2013Assignee: Iptronics A/SInventor: Kenn Christensen
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Publication number: 20130119294Abstract: 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 atType: ApplicationFiled: July 29, 2011Publication date: May 16, 2013Applicant: Rockwool International A/SInventors: Kenn Christensen, Kristian Skovgaard Jorgensen, Gorm Rosenberg, Ulrich Bauer, Dhaval Doshi, Elmar Pothmann
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Patent number: 8276622Abstract: 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: GrantFiled: June 6, 2007Date of Patent: October 2, 2012Assignee: Rockwool International A/SInventors: Kurt Munk Pedersen, Kenn Christensen, Lars Elmekilde Hansen
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Publication number: 20120187323Abstract: 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: ApplicationFiled: July 30, 2010Publication date: July 26, 2012Inventors: Kristian Skovgard Jorgensen, Ulrich Bauer, Gorm Rosenberg, Kenn Christensen
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Publication number: 20120190262Abstract: 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: ApplicationFiled: July 30, 2010Publication date: July 26, 2012Inventors: Gorm Rosenberg, Kenn Christensen
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Patent number: 8018286Abstract: 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: GrantFiled: February 12, 2010Date of Patent: September 13, 2011Assignee: Iptronics A/SInventor: Kenn Christensen
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Publication number: 20110139960Abstract: 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: ApplicationFiled: December 12, 2009Publication date: June 16, 2011Inventor: Kenn Christensen
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Publication number: 20100214019Abstract: 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: ApplicationFiled: February 12, 2010Publication date: August 26, 2010Applicant: IPtronics A/SInventor: Kenn CHRISTENSEN
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Publication number: 20090165776Abstract: 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: ApplicationFiled: June 6, 2007Publication date: July 2, 2009Inventors: Kurt Munk Pedersen, Kenn Christensen, Lars Elmekilde Hansen