Patents by Inventor Lars A. Jonsson
Lars A. Jonsson 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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Publication number: 20180054060Abstract: An AC power transformer includes primary and secondary windings for at least a first AC phase and a second AC phase, and a core for said at least first and second phases. The transformer further includes a control unit for transferring power from the first phase to the second phase via magnetic coupling in the core such that the sum of the phase vectors of all of the at least first and second phases is substantially zero.Type: ApplicationFiled: March 6, 2015Publication date: February 22, 2018Applicant: ABB SCHWEIZ AGInventors: Lars JONSSON, Nan CHEN, Stefan THORBURN
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Publication number: 20160061034Abstract: The invention relates to a shielded draining pipe mesh (1) for mounting on a surface and for being covered by shotcrete (7). The pipes (2) are U-shaped in cross section with an open side facing the surface. The pipe (2) is provided with a shield (6) that covers the open side. The pipe remains enclosed while applying shotcrete, but the shield (6) allow water to flow through it into the interior. In one embodiment the pipe (2) is provided with side bands (3a-b) extending along either side of the edges of the pipe at its open side, where the shield is attached to the side bands giving additional mechanical strength.Type: ApplicationFiled: April 3, 2013Publication date: March 3, 2016Inventor: Lars JÖNSSON
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Publication number: 20160015077Abstract: A freeze dried oral smokeless tobacco snuff or non-tobacco snuff product and a method of manufacturing the freeze dried oral smokeless tobacco snuff or non-tobacco snuff product.Type: ApplicationFiled: April 4, 2014Publication date: January 21, 2016Inventors: Mårten Kindvall, Lars Jonsson, Mattias Schyberg
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Patent number: 8814076Abstract: A roll arrangement for determining a web tension profile of a web. The roll arrangement includes a roll having a peripheral surface for guiding the web, which peripheral surface is provided with a plurality of openings, and a plurality of sensor arrangements. Each of the plurality of openings are arranged to receive one sensor arrangement of the plurality of sensor arrangements to thereby sense forces applied by the web to the roll. The roll arrangement is adapted to suspend the sensor arrangements in the respective opening.Type: GrantFiled: April 26, 2013Date of Patent: August 26, 2014Assignee: ABB ABInventors: Kjell Ingvarsson, Ulf A. Lifvenborg, Lars Jonsson, Jesper Kiersgaard, Kenneth Grefve, Joar Johansson
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Patent number: 8777887Abstract: In a hemodiafiltration apparatus, a membrane device (2) comprises a blood chamber (3) and a fluid chamber (4) separated by a semipermeable membrane (5). A grounding device (17) is connected to the discharge line by means of a tubular connector (16) made of an electrically-conductive plastic material. The grounding device can disconnect the grounding connection if the leakage current measured on a patient (1) connected to the apparatus exceeds a predetermined value. The apparatus can be classified as Cardiac Floating and, at the same time, causes no disturbances to an electrocardiograph connected to the patient.Type: GrantFiled: October 3, 2007Date of Patent: July 15, 2014Assignee: Gambro Lundia ABInventors: Lars Jönsson, Riccardo Pellegrini, Andrea Ligabue
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Patent number: 8539804Abstract: The invention relates to a method and a device for controlling a roll gap when rolling a strip (1) in a rolling mill including at least two rolls (3a-b,4a-b), and at least two roll gap actuators (6,7) that independently control the size of the roll gap. The device is adapted to receive information on the amount of wedge shape (POSactOS,POSactDS) in the strip thickness profile across the strip width, and to control said actuators, based on said information on the amount of wedge shape in the strip thickness profile, such that the relative reduction of the strip on both sides of the rolling mill become essentially the same.Type: GrantFiled: May 21, 2007Date of Patent: September 24, 2013Assignee: ABB ABInventor: Lars Jonsson
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Publication number: 20130233959Abstract: A roll arrangement for determining a web tension profile of a web. The roll arrangement includes a roll having a peripheral surface for guiding the web, which peripheral surface is provided with a plurality of openings, and a plurality of sensor arrangements. Each of the plurality of openings are arranged to receive one sensor arrangement of the plurality of sensor arrangements to thereby sense forces applied by the web to the roll. The roll arrangement is adapted to suspend the sensor arrangements in the respective opening.Type: ApplicationFiled: April 26, 2013Publication date: September 12, 2013Inventors: Kjell Ingvarsson, Ulf A. Lifvenborg, Lars Jonsson, Jesper Kiersgaard, Kenneth Grefve, Joar Johansson
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Patent number: 8367951Abstract: A retrofit diverter switch which has a mechanical and electrical interface that is compatible with the existing designs is provided. The diverter switch may include a vacuum switch. The feature where the mechanical and electrical interface is compatible enables a retrofit from traditional On Load Tap Changers to a vacuum based on Load Tap Changers. The diverter switch may be retrofitted into existing tap changer housings. Retrofitting from traditional to vacuum based, traditional to vacuum based and up rating, and vacuum up rating may be possible. Also, the diverter switch may include modular components that allow for easy customization of the diverter switch for different applications.Type: GrantFiled: August 23, 2007Date of Patent: February 5, 2013Assignee: ABB Technology Ltd.Inventors: Petter Nilsson, Robert L. Hirt, Hans Johansson, Mats Carlsson, Lars Jonsson
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Patent number: 8286683Abstract: Device for automatically separating the tire and the rim in a vehicle wheel. The feed-in device feeds in vehicle wheels and a press-in device is located in an inactive position at a distance from the rim edge and is shifted to an active position. Press-in members are adjusted in the direction of the rim in order to press in the rim edge, whereafter the rim can be pressed out. The press-in device with a number of press-in elements forms a unit, which is movably suspended from a frame in which the wheel is placed in position to separate the tire and the rim. Feed-out devices feed out the separated rims to a first collection point and the separated tires to a second collection point.Type: GrantFiled: November 7, 2008Date of Patent: October 16, 2012Assignee: Tyre Save Sweden ABInventor: Lars Jönsson
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Patent number: 7982142Abstract: A diverter switch with an operating member and an electric circuit. The electric circuit has a main branch and a resistance branch connected in parallel with the main branch. Each branch includes a contact and a vacuum switch. The resistance branch also includes a resistance. The main rotary selector contact is always operated before the resistance contact. The operating member is arranged, during operation, always to rotate the main contact in one and the same direction of rotation. Also a corresponding method for operating a diverter switch and use of such a switch.Type: GrantFiled: June 29, 2005Date of Patent: July 19, 2011Assignee: ABB Research Ltd.Inventors: Lars Jonsson, Tommy Larsson, Petter Nilsson, Stefan Valdemarsson
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Patent number: 7942073Abstract: Device for transmitting rotary motion in a diverter switch comprising a motion-transmitting member for transforming an alternating rotary motion of a drive shaft into a unidirected rotary motion of a driven body driven about driven shaft. The motion-transmitting member includes an intermediate body rotatable about an intermediate shaft. A mechanical energy accumulation member is connected to the driven body. The motion-transmitting member for transforming the alternating rotary motion of the drive shaft into a unidirected rotary motion of the driven shaft includes an intermediate motion member connected to a crank mechanism. The motion member includes an engagement mechanism for transforming the linear motion into a unidirected rotary motion of the intermediate shaft via drive members.Type: GrantFiled: December 6, 2006Date of Patent: May 17, 2011Assignee: ABB Research Ltd.Inventor: Lars Jonsson
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Publication number: 20110031220Abstract: A retrofit diverter switch which has a mechanical and electrical interface that is compatible with the existing designs is provided. The diverter switch may include a vacuum switch. The feature where the mechanical and electrical interface is compatible enables a retrofit from traditional On Load Tap Changers to a vacuum based on Load Tap Changers. The diverter switch may be retrofitted into existing tap changer housings. Retrofitting from traditional to vacuum based, traditional to vacuum based and up rating, and vacuum up rating may be possible. Also, the diverter switch may include modular components that allow for easy customization of the diverter switch for different applications.Type: ApplicationFiled: August 23, 2007Publication date: February 10, 2011Applicant: ABB Technology Ltd.Inventors: Petter Nilsson, Robert L. Hirt, Hans Johansson, Mats Carlsson, Lars Jonsson
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Publication number: 20100307693Abstract: Device for automatically separating the tire and the rim in a vehicle wheel. The feed-in device feeds in vehicle wheels and a press-in device is located in an inactive position at a distance from the rim edge and is shifted to an active position. Press-in members are adjusted in the direction of the rim in order to press in the rim edge, whereafter the rim can be pressed out. The press-in device with a number of press-in elements forms a unit, which is movably suspended from a frame in which the wheel is placed in position to separate the tire and the rim. Feed-out devices feed out the separated rims to a first collection point and the separated tires to a second collection point.Type: ApplicationFiled: November 7, 2008Publication date: December 9, 2010Applicant: Tyre Save Swenden ABInventor: Lars Jönsson
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Publication number: 20100312161Abstract: In a hemodiafiltration apparatus, a membrane device (2) comprises a blood chamber (3) and a fluid chamber (4) separated by a semipermeable membrane (5). A grounding device (17) is connected to the discharge line by means of a tubular connector (16) made of an electrically-conductive plastic material. The grounding device can disconnect the grounding connection if the leakage current measured on a patient (1) connected to the apparatus exceeds a predetermined value. The apparatus can be classified as Cardiac Floating and, at the same time, causes no disturbances to an electrocardiograph connected to the patient.Type: ApplicationFiled: October 3, 2007Publication date: December 9, 2010Applicant: GAMBRO LUNDIA ABInventors: Lars Jonsson, Riccardo Pellegrini, Andrea Ligabue
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Publication number: 20090277241Abstract: The invention relates to a method and a device for controlling a roll gap when rolling a strip (1) in a rolling mill including at least two rolls (3a-b,4a-b), and at least two roll gap actuators (6,7) that independently control the size of the roll gap. The device is adapted to receive information on the amount of wedge shape (POSactOS,POSactDS) in the strip thickness profile across the strip width, and to control said actuators, based on said information on the amount of wedge shape in the strip thickness profile, such that the relative reduction of the strip on both sides of the rolling mill become essentially the same.Type: ApplicationFiled: May 21, 2007Publication date: November 12, 2009Inventor: Lars Jonsson
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Publication number: 20090151486Abstract: Device for transmitting rotary motion in a diverter switch comprising a motion-transmitting member for transforming an alternating rotary motion of a drive shaft into a unidirected rotary motion of a driven body driven about driven shaft. The motion-transmitting member includes an intermediate body rotatable about an intermediate shaft. A mechanical energy accumulation member is connected to the driven body. The motion-transmitting member for transforming the alternating rotary motion of the drive shaft into a unidirected rotary motion of the driven shaft includes an intermediate motion member connected to a crank mechanism. The motion member includes an engagement mechanism for transforming the linear motion into a unidirected rotary motion of the intermediate shaft via drive members.Type: ApplicationFiled: December 6, 2006Publication date: June 18, 2009Applicant: ABB RESEARCH LTD.Inventor: Lars Jonsson
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Publication number: 20080257703Abstract: The invention relates to a diverter switch with an operating member and an electric circuit. The electric circuit has a main branch (1) and a resistance branch (2) connected in parallel with the main branch (1). Each branch comprises a contact (11, 21) and a vacuum switch (12, 22). The resistance branch (2) comprises, in addition, a resistance (30). The main rotary selector contact is always operated before the resistance contact (21). According to the invention, the operating member is arranged, during operation, always to rotate the main contact (11) in one and the same direction of rotation. The invention also relates to a corresponding method for operating a diverter switch and use of such a switch.Type: ApplicationFiled: June 29, 2005Publication date: October 23, 2008Applicant: Abb Research Ltd.Inventors: Lars Jonsson, Tommy Larsson, Petter Nilsson, Stefan Valdemarsson
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Publication number: 20080056427Abstract: A reference frequency generator circuit for a radio frequency transmit and receive apparatus comprises: a first voltage controlled oscillator which is operable to produce a first reference frequency signal, a second voltage controlled oscillator which is operable to produce a second reference frequency signal, a switchable set of dividers, connected to receive the first and second reference frequency signals, and operable to produce a set of output reference frequency signals therefrom, a first subset of the set of output reference frequencies being derived from the first reference frequency, and a second subset of the set of output reference frequencies being derived from the second reference frequency, wherein the first and second reference frequency signals are not equal in frequency to the output reference frequency signals in the set of output reference frequency signals.Type: ApplicationFiled: November 23, 2004Publication date: March 6, 2008Inventors: Rob Bristow, Lars Jonsson, Thomas Mattsson
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Patent number: 7166936Abstract: An apparatus for controlling an electric switching device (1) for alternating current arranged in a current path for opening the switching device and for breaking the current in the current path after occurrence of a fault current comprises members (15) adapted to detect the current in the current path and a unit (20) adapted to control the electric switching device to break the current in the current path directly after a half wave of the alternating current having a peak value below a predetermined current limit value, so that the breaking is completed through a zero-crossing of the alternating current terminating a said half wave.Type: GrantFiled: June 7, 2001Date of Patent: January 23, 2007Assignee: ABB Group Services Center ABInventors: Per Larsson, Magnus Backman, Lars Jonsson
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Patent number: 7151353Abstract: A method for evaluating a condition of a switching device. The switching device includes contact parts, an electric motor and a mechanical coupling device for transforming motion from the electric motor to at least one of the contact parts. A self-diagnostic test is performed on a component of the switching device. The test includes making at least one small movement with the electric motor. A switching device includes contact parts, an electric motor, a mechanical coupling device for transforming motion from the electric motor to at least one of the contact parts, and tester for making self-diagnostic tests, wherein the tester makes small motor movements that are a fraction of a full breaking movement, thereby producing data for evaluating a condition of the switching device.Type: GrantFiled: September 17, 2001Date of Patent: December 19, 2006Assignee: ABB ABInventors: Sjoerd G. Bosga, Philip C. Kiaer, Magnus Backman, Mats Svensson, Per-Olof Thureson, Lars Jonsson, Freddy Magnussen, Per Larsson, Stefan Valdemarsson