Patents by Inventor Lennart Karlsson
Lennart Karlsson 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: 11865743Abstract: Method for injection moulding one or more parts using an injection moulding machine and tool including at least one mould cavity, and a feed system comprising at least one gate and at least one runner that is located upstream of the at least one gate. The at least one runner includes at least one moveable wall and the method includes changing at least one cross-sectional dimension of the at least one runner by moving the at least one moveable wall in order achieve at least one of to vary a flow rate of material in the at least one runner, to apply a holding pressure to material in the at least one runner and consequently to the at least one mould cavity, or to compress residue in the at least one runner.Type: GrantFiled: January 23, 2023Date of Patent: January 9, 2024Assignee: FLEXIJECT ABInventor: Lennart Karlsson
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Publication number: 20230166345Abstract: A method comprises: providing a welding current pulse through a welding circuit to create an arc for a welding operation; measuring an arc voltage to produce a measured arc voltage pulse that includes an inductive voltage drop due to inductance in the welding circuit and current ramps of the welding current pulse; and during the welding operation, implementing an inductance-compensation feedback loop. The feedback loop includes canceling the inductive voltage drop from the measured arc voltage pulse using a canceling voltage to produce a compensated arc voltage pulse; and deriving the canceling voltage based on the compensated arc voltage pulse.Type: ApplicationFiled: November 30, 2021Publication date: June 1, 2023Inventor: Rolf Lennart Karlsson
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Publication number: 20230166437Abstract: Method for injection moulding one or more parts using an injection moulding machine and tool including at least one mould cavity, and a feed system comprising at least one gate and at least one runner that is located upstream of the at least one gate. The at least one runner includes at least one moveable wall and the method includes changing at least one cross-sectional dimension of the at least one runner by moving the at least one moveable wall in order achieve at least one of to vary a flow rate of material in the at least one runner, to apply a holding pressure to material in the at least one runner and consequently to the at least one mould cavity, or to compress residue in the at least one runner.Type: ApplicationFiled: January 23, 2023Publication date: June 1, 2023Applicant: FLEXIJECT ABInventor: Lennart KARLSSON
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Patent number: 11613057Abstract: Method for injection moulding one or more parts using an injection moulding machine and tool (12, 13) comprising at least one mould cavity (17), and a feed system comprising at least one gate (18) and at least one runner (19, 20, 21) that is located upstream of the at least one gate (18). The at least one runner (19, 20, 21) comprises a at least one moveable wall and the method comprises the step of changing at least one cross-sectional dimension (T, B, H, S or S+?S) of the at least one runner (19, 20, 21) by moving the at least one moveable wall in order achieve at least one of the following: a) to vary a flow rate of material in the at least one runner (19, 20, 21), b) to apply a holding pressure to material in the at least one runner (19, 20, 21) and consequently to the at least one mould cavity (17), c) to compress residue in the at least one runner (19, 20, 21).Type: GrantFiled: March 22, 2019Date of Patent: March 28, 2023Assignee: FLEXIJECT ABInventor: Lennart Karlsson
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Patent number: 11365472Abstract: A coated cutting tool includes a body and a PVD coating disposed on the body. The body being cemented carbide, cermet, ceramics, polycrystalline diamond, polycrystalline cubic boron nitride based materials or a high speed steel. The coating includes a first layer of (Ti1-xAlx)N wherein 0.3?x?0.7, and a second layer of (Ti1-p-qAlp Siq)N with 0.15?p?0.45, and 0.05?q?0.20, wherein the second layer is deposited outside the first layer as seen in a direction from the body.Type: GrantFiled: April 7, 2017Date of Patent: June 21, 2022Assignee: Seco Tools ABInventors: Gied Rutten, Lennart Karlsson
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Publication number: 20210008773Abstract: Method for injection moulding one or more parts using an injection moulding machine and tool (12, 13) comprising at least one mould cavity (17), and a feed system comprising at least one gate (18) and at least one runner (19, 20, 21) that is located upstream of the at least one gate (18). The at least one runner (19, 20, 21) comprises a at least one moveable wall and the method comprises the step of changing at least one cross-sectional dimension (T, B, H, S or S+?S) of the at least one runner (19, 20, 21) by moving the at least one moveable wall in order achieve at least one of the following: a) to vary a flow rate of material in the at least one runner (19, 20, 21), b) to apply a holding pressure to material in the at least one runner (19, 20, 21) and consequently to the at least one mould cavity (17), c) to compress residue in the at least one runner (19, 20, 21).Type: ApplicationFiled: March 22, 2019Publication date: January 14, 2021Applicant: FLEXIJECT ABInventor: Lennart KARLSSON
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Publication number: 20190161849Abstract: A coated cutting tool includes a body and a PVD coating disposed on the body. The body being cemented carbide, cermet, ceramics, polycrystalline diamond, polycrystalline cubic boron nitride based materials or a high speed steel. The coating includes a first layer of (Ti1-xAlx)N wherein 0.3?x?0.7, and a second layer of (Ti1-p-qAlp Siq)N with 0.15?p?0.45, and 0.05?q?0.20, wherein the second layer is deposited outside the first layer as seen in a direction from the body.Type: ApplicationFiled: April 7, 2017Publication date: May 30, 2019Inventors: Gied RUTTEN, Lennart KARLSSON
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Patent number: 8507108Abstract: The present invention relates to a cutting tool insert, solid end mill, or drill, comprising a substrate and a coating. The coating is composed of one or more layers of refractory compounds of which at least one layer comprises a h-Me1Me2X phase, where Me1 is one or several of the elements V, Cr, Nb, and Ta and Me2 is one or several of the elements Ti, Zr, Hf, Al, and Si and X is one or several of the elements N, C, O or B. The ratio R=(at-% X)/(at-% Me1+at-% Me2) of the h-MelMe2X phase is between 0.5 and 1.0, preferably between 0.8 and 1.0 and X contains less than 30 at-% of O+B. This invention is particularly useful in metal cutting applications where the chip thickness is small and the work material is hard e.g. copy milling using solid end mills, insert milling cutters or drilling of hardened steels.Type: GrantFiled: May 8, 2006Date of Patent: August 13, 2013Inventors: Tommy Larsson, Lennart Karlsson
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Patent number: 8440327Abstract: A method of producing hard wear resistant layer with improved wear resistance. The method is a reactive arc-evaporation based process using a cathode including as main constituent at least one phase of a refractory compound Mn+1AXn (n=1, 2 or 3), wherein M is one or more metals selected from the groups IIIB, IVB, VB, VIB and VIIB of the periodic table of elements, A is one or more elements selected from the groups IIIA, IVA, VA and VIA of the periodic table of elements, and wherein X is carbon and/or nitrogen.Type: GrantFiled: September 17, 2008Date of Patent: May 14, 2013Assignee: Seco Tools ABInventors: Jens-Petter Palmqvist, Jacob Sjolen, Lennart Karlsson
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Publication number: 20110123829Abstract: The present invention relates to a cutting tool insert, solid end mill, or drill, comprising a substrate and a coating. The coating is composed of one or more layers of refractory compounds of which at least one layer comprises a cubic (Me,Si)X phase, where Me is one or more of the elements Ti, V, Cr, Zr, Nb, Mo, Hf, Ta and Al, and X is one or more of the elements N, C, O or B. The ratio R=(at-% X)/(at-% Me) of the c-MeSiX phase is between 0.5 and 1.0 and X contains less than 30 at-% of O+B. This invention is particularly useful in metal machining applications where the chip thickness is small and the work material is hard e.g. copy milling using solid end mills, insert milling cutters or drilling of hardened steels.Type: ApplicationFiled: January 27, 2011Publication date: May 26, 2011Applicant: SECO TOOLS ABInventors: Jacob Sjolen, Tommy Larsson, Lennart Karlsson
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Patent number: 7947101Abstract: Embodiments of the invention generally include a filter assembly having a media pack having a single web of pleated media having at least two mini-pleated regions arranged in non-linear orientation. In one embodiment, a filter assembly includes a media pack defined by a single web of media, and an adhesive layer coupling a flat end of the media pack to a frame assembly to form a lap joint. In another embodiment, a filter assembly includes a media pack sealed to a frame assembly. A discontinuous layer of adhesive couples at least one edge of the media pack to the frame assembly.Type: GrantFiled: March 1, 2006Date of Patent: May 24, 2011Assignee: Camfil ABInventors: Steven T. Devine, Anders Martin Sundvik, Lennart Karlsson
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Patent number: 7938927Abstract: Embodiments of the invention generally include a filter assembly having a media pack having a single web of pleated media having at least two mini-pleated regions arranged in non-linear orientation. In one embodiment, a filter assembly includes a media pack defined by a single web of media, and an adhesive layer coupling a flat end of the media pack to a frame assembly to form a lap joint. In another embodiment, a filter assembly includes a media pack sealed to a frame assembly. A discontinuous layer of adhesive couples at least one edge of the media pack to the frame assembly.Type: GrantFiled: March 1, 2006Date of Patent: May 10, 2011Assignee: Camfil ABInventors: Anders Martin Sundvik, Lennart Karlsson, Steven T. Devine
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Patent number: 7931726Abstract: Embodiments of the invention generally include a filter assembly having a media pack having a single web of pleated media having at least two mini-seated regions arranged in non-linear orientation. In one embodiment, a filter assembly includes a media pack defined by a single web of media, and an adhesive layer coupling a flat end of the media pack to a frame assembly to from a lap joint. In another embodiment, a filter assembly includes a media pack sealed to a frame assembly. A discontinuous layer of adhesive couples at least one edge of the media pack to the frame assembly.Type: GrantFiled: March 1, 2006Date of Patent: April 26, 2011Assignee: Camfil ABInventors: Lennart Karlsson, Anders Martin Sundvik, Steven T. Devine
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Publication number: 20100322840Abstract: A method of producing hard wear resistant layer with improved wear resistance. The method is a reactive arc-evaporation based process using a cathode including as main constituent at least one phase of a refractory compound Mn+1AXn (n=1, 2 or 3), wherein M is one or more metals selected from the groups IIIB, IVB, VB, VIIB and VIIB of the periodic table of elements, A is one or more elements selected from the groups IIIA, IVA, VA and VIA of the periodic table of elements, and wherein X is carbon and/or nitrogen.Type: ApplicationFiled: September 17, 2008Publication date: December 23, 2010Applicant: SECO TOOLS ABInventors: Jens-Petter Palmqvist, Jacob Sjolen, Lennart Karlsson
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Patent number: 7592076Abstract: The present invention relates to a cutting tool insert, solid end mill, or drill, comprising a substrate and a coating. The coating is composed of at least one layer comprising a cubic c-(Me,Si,)N-phase without a co-existing amorphous phase.Type: GrantFiled: April 27, 2006Date of Patent: September 22, 2009Assignee: Seco Tools ABInventors: Axel Flink, Lars Hultman, Jacob Sjölén, Tommy Larsson, Lennart Karlsson
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Patent number: 7275763Abstract: An air bag system includes an inflatable air bag and a housing formed with a vent. A tether release/vent-modifying mechanism is connected to the housing and has a plurality of walls and a movable member. The movable member has a cap portion and a rod portion extending longitudinally from the underside of the cap portion. A first broad portion extends from the cap portion forward of the underside of the cap portion and covers or uncovers a vent in the housing when the movable member is actuated to move between first and second positions to release tethers connected to the air bag.Type: GrantFiled: March 26, 2004Date of Patent: October 2, 2007Assignees: General Motors Corporation, Autoliv ASP, Inc.Inventors: Scott David Thomas, Christina Lindblom, Lennart Karlsson, Marcus Weber
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Publication number: 20070204577Abstract: Embodiments of the invention generally include a filter assembly having a media pack having a single web of pleated media having at least two mini-pleated regions arranged in non-linear orientation. In one embodiment, a filter assembly includes a media pack defined by a single web of media, and an adhesive layer coupling a flat end of the media pack to a frame assembly to form a lap joint. In another embodiment, a filter assembly includes a media pack sealed to a frame assembly. A discontinuous layer of adhesive couples at least one edge of the media pack to the frame assembly.Type: ApplicationFiled: March 1, 2006Publication date: September 6, 2007Inventors: Steven Devine, Anders Sundvik, Lennart Karlsson
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Publication number: 20070204579Abstract: Embodiments of the invention generally include a filter assembly having a media pack having a single web of pleated media having at least two mini-seated regions arranged in non-linear orientation. In one embodiment, a filter assembly includes a media pack defined by a single web of media, and an adhesive layer coupling a flat end of the media pack to a frame assembly to from a lap joint. In another embodiment, a filter assembly includes a media pack sealed to a frame assembly. A discontinuous layer of adhesive couples at least one edge of the media pack to the frame assembly.Type: ApplicationFiled: March 1, 2006Publication date: September 6, 2007Inventors: Lennart Karlsson, Anders Sundvik, Steven Devine
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Publication number: 20070204578Abstract: Embodiments of the invention generally include a filter assembly having a media pack having a single web of pleated media having at least two mini-pleated regions arranged in non-linear orientation. In one embodiment, a filter assembly includes a media pack defined by a single web of media, and an adhesive layer coupling a flat end of the media pack to a frame assembly to form a lap joint. In another embodiment, a filter assembly includes a media pack sealed to a frame assembly. A discontinuous layer of adhesive couples at least one edge of the media pack to the frame assembly.Type: ApplicationFiled: March 1, 2006Publication date: September 6, 2007Inventors: Anders Sundvik, Lennart Karlsson, Steven Devine
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Patent number: D584807Type: GrantFiled: March 1, 2006Date of Patent: January 13, 2009Assignee: Camfil ABInventors: Anders Martin Sundvik, Lennart Karlsson