Patents by Inventor Martin Kristoffersen
Martin Kristoffersen 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: 11348748Abstract: A gas-insulated puffer-type switch device for operating inside a sealed gas tight enclosure of an electric power distribution switchgear, the sealed gas tight enclosure being filled with a dielectric gas having a global warming potential lower than that of SF6. The switch device has at least one of improved compactness, minimised electrical stress, maximised heat dissipation and reduced environmental impact.Type: GrantFiled: December 10, 2020Date of Patent: May 31, 2022Assignee: ABB Schweiz AGInventors: Elham Attar, Magne Saxegaard, Richard Lauritzen, Ståle Talmo, Stanley Lohne, Martin Kristoffersen, Wilhelm Rondeel
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Publication number: 20210193416Abstract: A gas-insulated puffer-type switch device for operating inside a sealed gas tight enclosure of an electric power distribution switchgear, the sealed gas tight enclosure being filled with a dielectric gas having a global warming potential lower than that of SF6. The switch device has at least one of improved compactness, minimised electrical stress, maximised heat dissipation and reduced environmental impact.Type: ApplicationFiled: December 10, 2020Publication date: June 24, 2021Inventors: Elham Attar, Magne Saxegaard, Richard Lauritzen, Ståle Talmo, Stanley Lohne, Martin Kristoffersen, Wilhelm Rondeel
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Patent number: 10991528Abstract: A load-break switch has a housing holding insulation gas at ambient pressure; a first main contact and a second main contact being movable relative to each other in an axial direction of the switch; a first arcing contact and a second arcing contact being movable relative to each other in the axial direction and defining an arcing region where an arc is formed during a current breaking operation, wherein the arcing region is located radially inward from the first main contact; a pressurizing system pressurizing a quenching gas during the current breaking operation; and a nozzle system arranged to blow the pressurized quenching gas onto the arc. The first main contact includes at least one pressure release opening to allow gas flow in a radial outward direction. A total area of the pressure release opening suppresses a reduction of gas flow out of the pressure release opening.Type: GrantFiled: June 12, 2018Date of Patent: April 27, 2021Assignee: ABB Schweiz AGInventors: Nitesh Ranjan, Elham Attar, Jan Carstensen, Magne Saxegaard, Martin Kristoffersen, Ståle Talmo, Stanley Lohne, Michael Schwinne, Martin Seeger
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Patent number: 10964498Abstract: A gas-insulated low- or medium-voltage load break switch includes: a housing defining a housing volume for holding an insulation gas at an ambient pressure; a first arcing contact and a second arcing contact arranged within the housing volume, the first and second arcing contacts being movable in relation to each other along an axis of the load break switch and defining a quenching region in which an arc is formed during a current breaking operation; a pressurizing system having a pressurizing chamber arranged within the housing volume for pressurizing a quenching gas from an ambient pressure p0 to a quenching pressure pquench during the current breaking operation; and a nozzle system arranged within the housing volume for blowing the pressurized quenching gas in a subsonic flow pattern from the pressurization chamber onto the arc formed in the quenching region during the current breaking operation.Type: GrantFiled: December 3, 2018Date of Patent: March 30, 2021Assignee: ABB Schweiz AGInventors: Bernardo Galletti, Elham Attar, Jan Carstensen, Magne Saxegaard, Martin Kristoffersen, Martin Seeger, Michael Schwinne, Nitesh Ranjan, Patrick Stoller
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Publication number: 20200126742Abstract: A gas-insulated load break switch and a gas-insulated switchgear having a gas-insulated load break switch.Type: ApplicationFiled: June 12, 2018Publication date: April 23, 2020Inventors: Nitesh Ranjan, Elham Attar, Jan Carstensen, Magne Saxegaard, Martin Kristoffersen, Ståle Talmo, Stanley Lohne, Michael Schwinne, Martin Seeger
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Publication number: 20190115174Abstract: A gas-insulated low- or medium-voltage load break switch includes: a housing defining a housing volume for holding an insulation gas at an ambient pressure; a first arcing contact and a second arcing contact arranged within the housing volume, the first and second arcing contacts being movable in relation to each other along an axis of the load break switch and defining a quenching region in which an arc is formed during a current breaking operation; a pressurizing system having a pressurizing chamber arranged within the housing volume for pressurizing a quenching gas from an ambient pressure p0 to a quenching pressure pquench during the current breaking operation; and a nozzle system arranged within the housing volume for blowing the pressurized quenching gas in a subsonic flow pattern from the pressurization chamber onto the arc formed in the quenching region during the current breaking operation.Type: ApplicationFiled: December 3, 2018Publication date: April 18, 2019Inventors: Bernardo Galletti, Elham Attar, Jan Carstensen, Magne Saxegaard, Martin Kristoffersen, Martin Seeger, Michael Schwinne, Nitesh Ranjan, Patrick Stoller
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Patent number: 9684120Abstract: An optical article, such as a backlight for electronic display devices, is disclosed. The optical article includes a lightguide, a viscoelastic layer disposed on the light guide and a nanovoided polymeric layer disposed on the viscoelastic layer. The nanovoided polymeric layer comprises a plurality of interconnected nanovoids and at least some of the interconnected nanovoids are connected to one another by hollow passages. The lightguide may be optically coupled to a light source, and the viscoelastic layer and the nanovoided polymeric layer may be used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic layer may be a pressure sensitive adhesive.Type: GrantFiled: December 10, 2015Date of Patent: June 20, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Martin B. Wolk, Michael J. Sykora, Robert L. Brott, William J. Bryan, Erik A. Aho, Martin Kristoffersen, Michael A. Meis, Kevin R. Schaffer, Audrey A. Sherman, John C. Schultz, Mieczyslaw H. Mazurek
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Publication number: 20160097895Abstract: An optical article, such as a backlight for electronic display devices, is disclosed. The optical article includes a lightguide, a viscoelastic layer disposed on the light guide and a nanovoided polymeric layer disposed on the viscoelastic layer. The nanovoided polymeric layer comprises a plurality of interconnected nanovoids and at least some of the interconnected nanovoids are connected to one another by hollow passages. The lightguide may be optically coupled to a light source, and the viscoelastic layer and the nanovoided polymeric layer may be used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic layer may be a pressure sensitive adhesive.Type: ApplicationFiled: December 10, 2015Publication date: April 7, 2016Inventors: Martin B. Wolk, Michael J. Sykora, Robert L. Brott, William J. Bryan, Erik A. Aho, Martin Kristoffersen, Michael A. Meis, Kevin R. Schaffer, Audrey A. Sherman, John C. Schultz, Mieczyslaw H. Mazurek
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Patent number: 9304243Abstract: An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a viscoelastic lightguide optically coupled to a light source, and a nanovoided polymeric layer is used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic lightguide may be a pressure sensitive adhesive.Type: GrantFiled: August 11, 2015Date of Patent: April 5, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Martin B. Wolk, Michael J. Sykora, Robert L. Brott, William J. Bryan, Erik A. Aho, Martin Kristoffersen, Michael A. Meis, Kevin R. Schaffer, Audrey A. Sherman, John C. Schultz, Mieczyslaw H. Mazurek
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Patent number: 9239417Abstract: An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a lightguide optically coupled to a light source, and a viscoelastic layer and a nanovoided polymeric layer are used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic layer may be a pressure sensitive adhesive.Type: GrantFiled: February 9, 2011Date of Patent: January 19, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Martin B. Wolk, Michael J. Sykora, Robert L. Brott, William J. Bryan, Erik A. Aho, Martin Kristoffersen, Michael A. Meis, Kevin R. Schaffer, Audrey A. Sherman, John C. Schultz, Mieczyslaw H. Mazurek
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Publication number: 20150346416Abstract: An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a viscoelastic lightguide optically coupled to a light source, and a nanovoided polymeric layer is used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic lightguide may be a pressure sensitive adhesive.Type: ApplicationFiled: August 11, 2015Publication date: December 3, 2015Inventors: Martin B. Wolk, Michael J. Sykora, Robert L. Brott, William J. Bryan, Erik A. Aho, Martin Kristoffersen, Michael A. Meis, Kevin R. Schaffer, Audrey A. Sherman, John C. Schultz, Mieczyslaw H. Mazurek
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Patent number: 9194124Abstract: A sound absorbing luminaire providing lighting for an interior space environment and managing the acoustics within the environment. The luminaire includes a frame holding an acoustic film and a lighting element, forming a resonant cavity between them. The acoustic film is used for absorbing sound within the resonant cavity, and the lighting element provides light from a light source, such as LEDs, through the acoustic film. An optical film can be mounted in the frame between the acoustic film and the lighting element for providing a desired distribution of light.Type: GrantFiled: December 9, 2011Date of Patent: November 24, 2015Assignee: 3M Innovative Properties CompanyInventors: Raymond P. Johnson, Michael A. Meis, Anthony J. Piekarczyk, Martin Kristoffersen, Stephanie B. Castiglione
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Patent number: 9146342Abstract: An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a viscoelastic lightguide optically coupled to a light source, and a nanovoided polymeric layer is used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic lightguide may be a pressure sensitive adhesive.Type: GrantFiled: January 13, 2011Date of Patent: September 29, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Martin B. Wolk, Michael J. Sykora, Robert L. Brott, William J. Bryan, Erik A. Aho, Martin Kristoffersen, Michael A. Meis, Kevin R. Schaffer, Audrey A. Sherman, John C. Schultz, Mieczyslaw H. Mazurek
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Publication number: 20140043824Abstract: A solid state light having a solid state light source such as LEDs, and optical guide, and a thermal guide. The optical guide is coupled to the light source for receiving and distributing light from the light source, and the thermal guide is integrated with the optical guide for providing thermal conduction from the solid state light source and dissipating heat through convection for cooling the light.Type: ApplicationFiled: October 11, 2013Publication date: February 13, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: RAYMOND P. JOHNSTON, MICHAEL A. MEIS, MARTIN KRISTOFFERSEN
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Patent number: 8596809Abstract: Suspended optical film assemblies including a frame, an optical film, and an elastomeric film are disclosed. The elastomeric films include a first attachment region, a second attachment region, and a free region between the first and second attachment regions. The first attachment region is affixed to the frame; the second attachment region is affixed to the optical film, so that the free region is in tension and supports the optical film within the frame. The tension in the elastomeric film free region can help maintain flatness and reduce distortion in the optical film during environmental changes that influence dimensional changes in the frame, optical film, and elastomeric film.Type: GrantFiled: May 15, 2009Date of Patent: December 3, 2013Assignee: 3M Innovative Properties CompanyInventors: Raymond P. Johnston, David G. Freier, Mieczyslaw H. Mazurek, Martin Kristoffersen, John A. Wheatley
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Patent number: 8596825Abstract: A solid state light having a solid state light source such as LEDs, and optical guide, and a thermal guide. The optical guide is coupled to the light source for receiving and distributing light from the light source, and the thermal guide is integrated with the optical guide for providing thermal conduction from the solid state light source and dissipating heat through convection for cooling the light.Type: GrantFiled: August 4, 2009Date of Patent: December 3, 2013Assignee: 3M Innovative Properties CompanyInventors: Raymond P. Johnston, Michael A. Meis, Martin Kristoffersen, Brian W. Lueck, Katie B. Thompson
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Publication number: 20130235614Abstract: An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a viscoelastic lightguide optically coupled to a light source, and a nanovoided polymeric layer is used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic lightguide may be a pressure sensitive adhesive.Type: ApplicationFiled: January 13, 2011Publication date: September 12, 2013Inventors: Martin B. Wolk, Michael J. Sykora, Robert L. Brott, William J. Bryan, Erik A. Aho, Martin Kristoffersen, Michael A. Meis, Kevin R. Schaffer, Audrey A. Sherman, John C. Schultz, Mieczyslaw H. Mazurek
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Patent number: 8487518Abstract: A solid state light having a solid state light source such as LEDs, an optical guide, and a thermal guide. The optical guide is coupled to the light source for receiving and distributing light from the light source, and the thermal guide is integrated with the optical guide for providing thermal conduction from the solid state light source and dissipating heat through convection and radiation for cooling the light. The optical guide can be tapered to enhance the efficiency of light distribution. The thermal guide can have an external shell connected with internal fins, and the external shell can have a reflective coating to provide for a back reflector behind the optical guide.Type: GrantFiled: December 6, 2010Date of Patent: July 16, 2013Assignee: 3M Innovative Properties CompanyInventors: Raymond P. Johnston, Michael A. Meis, Robert L. Brott, Martin Kristoffersen, Charles N. DeVore, Paul E. Humpal
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Publication number: 20130170218Abstract: An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a lightguide optically coupled to a light source, and a viscoelastic layer and a nanovoided polymeric layer are used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic layer may be a pressure sensitive adhesive.Type: ApplicationFiled: February 9, 2011Publication date: July 4, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Martin B. Wolk, Michael J. Sykora, Robert L. Brott, William J. Bryan, Erik A. Aho, Martin Kristoffersen, Michael A. Meis, Kevin R. Schaffer, Audrey A. Sherman, John C. Schultz, Mieczyslaw H. Mazurek
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Publication number: 20130148357Abstract: A sound absorbing luminaire providing lighting for an interior space environment and managing the acoustics within the environment. The luminaire includes a frame holding an acoustic film and a lighting element, forming a resonant cavity between them. The acoustic film is used for absorbing sound within the resonant cavity, and the lighting element provides light from a light source, such as LEDs, through the acoustic film. An optical film can be mounted in the frame between the acoustic film and the lighting element for providing a desired distribution of light.Type: ApplicationFiled: December 9, 2011Publication date: June 13, 2013Inventors: Raymond P. Johnston, Michael A. Meis, Anthony J. Piekarczyk, Martin Kristoffersen, Stephanie B. Castiglione