Patents by Inventor Jörgen Johansson
Jörgen Johansson 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: 11968814Abstract: The present disclosure relates to a waveguide gasket arrangement arranged for electrically sealing a waveguide interface between a first waveguide end and a second waveguide end, where the waveguide gasket arrangement comprises a first plurality of electrically conducting members connected to a first common structure along a first circumference. The waveguide gasket arrangement further comprises a second plurality of electrically conducting members connected to a second common structure along a second circumference.Type: GrantFiled: June 26, 2019Date of Patent: April 23, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Göran Snygg, Torbjörn Westin, Henrik Pettersson, Gilbert Johansson, Jörgen Lundgren, Martin Fagerström, Cecilia Lundin, Ove Persson
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Publication number: 20230345870Abstract: The present disclosure relates to a lawn mower cutter unit (102) comprising a cutter propulsion unit (165) with a transmission axle (169) that is adapted to be rotated around a common rotation axis (Ax), a hub (166) that is rotatably connected to the transmission axle (169), a cutting disc (160), and a knob (120). The knob is rotatably connected to the hub (166) such that the knob (120) is adapted to rotate with the hub (166) and the transmission axle (169). The cutting disc (160) is displaceable along the common rotation axis (Ax), against a spring force of a spring element (130). The cutting disc (160) and the knob (120) are comprised in a coupling interface (140) that is comprised in the lawn mower cutter unit (102) and adapted to transfer a rotational torque transferred from the hub (166) to the cutting disc (160).Type: ApplicationFiled: May 2, 2023Publication date: November 2, 2023Inventor: Jörgen Johansson
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Patent number: 11781655Abstract: A sealing member (2), for waterproof sealing of a volume, comprises a hollow, generally cylindrical body and a sealing area (5a, 5b) at the respective axial ends thereof. At least one sealing area (5a) comprises a first radially extending portion (6) and a second portion (7) extending in a reverse direction partly overlapping the first portion. The second portion (7) has a free end and is arranged for pressing towards the first portion (6), thereby forming a seal with the first portion (6). A sealing system comprises a sealing member (2) as above, a sealing seat (9) for abutment against the sealing member (2), and a counterpart surface (11), for pressing the sealing member (2) against the sealing seat (9). The sealing seat (9) comprises an inclined surface (10). A work tool (1) comprising the above-mentioned sealing system has at least one sealing area (5a) of the sealing member (2) pressed between a housing (4) and a chassis (3) of the work tool (1).Type: GrantFiled: May 24, 2021Date of Patent: October 10, 2023Assignee: HUSQVARNA ABInventors: Jörgen Johansson, Stefan Stark, Lars Ederfors
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Publication number: 20220305691Abstract: The present disclosure relates to a method (100) for production of a chainsaw guide bar (5). The method comprises the steps of providing (120) an elongated core plate (5) extending along a plane, and, in said plane has a length (Lc) in the longitudinal direction (D), and a width (Wc) perpendicular to the longitudinal direction (D), comprising a pair of opposite long side edges (33) and at least one detachable element (31) that extends along at least one of the long side edges of the core plate. Arranging (140) a side plate (23a, 23b) on each side of the core plate (25), thereby forming a sandwiched structure and joining (160) of the plates (23a, 23b, 25) for formation of an elongated guide bar (5), wherein the at least one detachable element (31) remains attached to the core plate (25). The disclosure also relates to a guide bar (5) for a chainsaw (1).Type: ApplicationFiled: September 16, 2020Publication date: September 29, 2022Inventors: Christian Liliegård, Jörgen Johansson
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Publication number: 20220281342Abstract: The invention relates to a method for optimizing energy management of an electrical propulsion system of a vehicle, wherein the electrical propulsion system of the vehicle comprises an energy storage system and an electric machine. The electrical propulsion system further comprises at least one electrical component, wherein the electrical component has an idle state and an operation state. The method comprising the steps of: a) determining at least one parameter of the electrical component being in the operation state; b) inputting the parameter into a thermal model of the electrical component; c) predicting the temperature Tp of the electrical component being in operation state in real time on board the vehicle; d)comparing the predicted temperature value Tp with a predefined threshold value Tmax, and, e) automatically reducing the magnitude of the electrical current through the electrical component to a safe level if the predicted temperature value Tp exceeds the predefined threshold value Tmax.Type: ApplicationFiled: August 21, 2019Publication date: September 8, 2022Applicant: VOLVO TRUCK CORPORATIONInventors: Ingemar ECKERSTRÖM, Jörgen JOHANSSON
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Publication number: 20220110245Abstract: The present disclosure relates to a height adjustment device (1) comprising a height adjustment screw (3) having outer threads (5) and being oriented substantially vertically and arranged rotatably in relation to a chassis (7), and an adjustment nut (9) connected to a bracket (11) and comprising inner threads (13) for engagement with the threads (5) of the adjustment screw (3), such that a rotary movement of the height adjustment screw (3) results in a vertical linear movement of the bracket (11). The adjustment nut comprises a first part (15) and a second part (17) which together enclose the adjustment screw (3), wherein the first part (15) being adapted to be attached to the second part. The present disclosure also considers a robotic mower (101) comprising such a height adjustment device.Type: ApplicationFiled: October 8, 2021Publication date: April 14, 2022Inventors: Jörgen Johansson, Stefan Stark, Lars Ederfors
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Publication number: 20220030766Abstract: A cutting blade (100) adapted to be carried by a tool holder (20) provided in a robotic work tool (10), the cutting blade (100) comprising a blade body (110) and a cutting edge (120, 121) extending along at least a portion of the periphery (111) of the blade body (110), and a slit (113) arranged to receive a pin (30) for attaching the cutting blade (100) to said tool holder (20), wherein the cutting blade (100) is movable such that the pin (30) may be displaced within the slit (113). The hardness of the cutting blade (100) decreases in direction from the cutting edge (120, 121) towards the center (125) of the blade body (110) such that the hardness of the cutting edge (120, 121) is higher than the hardness of at least a center portion (126) of the blade body (110). The present disclosure also relates to a method for manufacturing a cutting blade.Type: ApplicationFiled: September 11, 2019Publication date: February 3, 2022Inventor: Jörgen JOHANSSON
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Patent number: 11230028Abstract: A chainsaw (100) includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar (120) around which a chain is rotatable. The guide bar (120) includes a first side plate (200) and a second side plate (210) facing each other and extending away from the housing (110) to a nose of the guide bar (120), the first and second side plates (200 and 210) each including an inner sidewall (224 and 222) facing inwardly toward each other. Each of the inner sidewalls (224 and 222) includes a recessed portion (230) at which material of the inner sidewalls (224 and 222) has been removed.Type: GrantFiled: April 5, 2017Date of Patent: January 25, 2022Assignee: Husqvarna ABInventors: Niklas Sarius, Christian Liliegård, Jörgen Johansson
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Publication number: 20210388905Abstract: A sealing member (2), for waterproof sealing of a volume, comprises a hollow, generally cylindrical body and a sealing area (5a, 5b) at the respective axial ends thereof. At least one sealing area (5a) comprises a first radially extending portion (6) and a second portion (7) extending in a reverse direction partly overlapping the first portion. The second portion (7) has a free end and is arranged for pressing towards the first portion (6), thereby forming a seal with the first portion (6). A sealing system comprises a sealing member (2) as above, a sealing seat (9) for abutment against the sealing member (2), and a counterpart surface (11), for pressing the sealing member (2) against the sealing seat (9). The sealing seat (9) comprises an inclined surface (10). A work tool (1) comprising the above-mentioned sealing system has at least one sealing area (5a) of the sealing member (2) pressed between a housing (4) and a chassis (3) of the work tool (1).Type: ApplicationFiled: May 24, 2021Publication date: December 16, 2021Inventors: Jörgen Johansson, Stefan Stark, Lars Ederfors
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Patent number: 11104026Abstract: A chainsaw (100) includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar (120) around 5 which a chain (210) is rotatable. The guide bar (120) includes first and second side plates (400, 410), a core (420) and a tension indicator (240). The first and second side plates (400, 410) each face other and extend away from a housing (110) to a nose. The core (420) is disposed between the first side plate (400) and the second side plate (410). The tension indicator (240) is provided at the core (420) and is visible at at least one of the first side plate 10 (400) or the second side plate (410). The tension indicator (240) is configured to indicate a chain tension based on a position of the guide bar (120).Type: GrantFiled: March 1, 2016Date of Patent: August 31, 2021Assignee: HUSQVARNA ABInventor: Jörgen Johansson
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Patent number: 11072889Abstract: A covering is particularly suited for use in a machine for producing and/or finishing a paper, cardboard, tissue or pulp web. The covering has a basic structure formed as a part of a flat woven material, which flat woven material is designed as a woven material by interlacing warp threads and weft threads. The portion of the flat woven material has a plurality of sections that are formed integrally with each other, with at least one property of one of the sections differing from the respective property of at least one adjacent section.Type: GrantFiled: May 30, 2017Date of Patent: July 27, 2021Assignee: Voith Patent GmbHInventors: Johan Malmquist, Hans-Joergen Johansson
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Patent number: 10849270Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade coupler operably coupled to the rotatable shaft. The blade coupler may define a blade channel configured to at least partially enclose four sides of a blade inserted therein. The blade coupler may include a support base and a sleeve that is movable relative to the support base based on a compression state of a biasing element. The blade may be insertable into the blade channel by orienting the blade to apply a force to sidewalls of the sleeve to shift the biasing element to a compressed state and rotating the blade proximate to the support base to enable the biasing element to shift to an extended state in which sidewalls of the sleeve define sidewalls of the blade channel.Type: GrantFiled: May 7, 2019Date of Patent: December 1, 2020Assignee: HUSQVARNA ABInventors: Jörgen Johansson, Eric Lennings
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Patent number: 10843369Abstract: A chainsaw (100) includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar (120) around which a chain is rotatable. The guide bar (120) includes a laminated structure in which different ones of the layers of the laminated structure are comprised of different materials.Type: GrantFiled: April 5, 2017Date of Patent: November 24, 2020Assignee: HUSQVARNA ABInventors: Niklas Sarius, Christian Liliegård, Jörgen Johansson
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Patent number: 10744670Abstract: A chainsaw (100) includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar (120) around which a chain is rotatable. The guide bar (120) includes first and second side plates (200 and 210), a sprocket wheel (220), first and second shims (240 and 242), and first and second sealing members (244 and 245). The first and second side plates (200 and 210) each face other and extend away from a housing (110) to a nose. The sprocket wheel (220) is provided at the nose between the first and second side plates (200 and 210). The first and second shims (240 and 242) are disposed between the first and second side plates (200 and 210), respectively, and corresponding ones of first and second sides of the sprocket wheel (220). The first sealing member (244) is disposed between the first shim (240) and the first side of the sprocket wheel (220).Type: GrantFiled: March 4, 2016Date of Patent: August 18, 2020Assignee: HUSQVARNA ABInventors: Jörgen Johansson, Christian Liliegård
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Patent number: 10627013Abstract: According to an example aspect of the present invention, there is provided A gripper comprising a body (1), the body (1) comprising an attachment (12) to a holding body. There is provided a first gripping jaw (2) extending from the body (1) and comprising a concave groove having has two longitudinal opposite edges (4, 5); at least one second gripping jaw (7) having a second concave groove with two longitudinal edges, at least one longitudinal edge of the second longitudinal groove being attached to one edge (5) of the first longitudinal groove either pivotably or detachably; and at least one closing element (10, 11) for pressing the second gripping jaw (7) towards the first gripping jaw (2).Type: GrantFiled: April 7, 2016Date of Patent: April 21, 2020Inventors: Janne Huovila, Jörgen Johansson, Kim Rinamo
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Patent number: 10470363Abstract: A height adjustment arrangement (1) for a lawn mower (20) for changing a cutting height is provided. The height adjustment arrangement comprises a respective link arm (2a, 2b) pivotally arranged at opposite sides of the chassis (21), and a transversal rod (5) extending between the link arms (2a, 2b) comprising wheel attachment ends (6a, 6b) configured to protrude outwardly from the respective link arm (2a, 2b). The height adjustment arrangement further comprises a locking arrangement (11) for releaseably locking at least one of the link arms (2a, 2b) in a pivot position. The transversal rod comprises connection portions (9a, 9b) which are essentially parallel to the link arms and releasably connected thereto such that pivoting of the link arm (2a, 2b) causes the wheel attachment ends (6a, 6b) to synchronously change the cutting height of the lawn mower chassis (21).Type: GrantFiled: May 31, 2011Date of Patent: November 12, 2019Assignee: HUSQVARNA ABInventors: Fredrik Edholm, Helena André, Magnus Henriksson, Jasmin Insanic, Jörgen Johansson, Jonas Tibbelin, Mikael Adolfsson, Karl Ljungquist
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Publication number: 20190254229Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade coupler operably coupled to the rotatable shaft. The blade coupler may define a blade channel configured to at least partially enclose four sides of a blade inserted therein. The blade coupler may include a support base and a sleeve that is movable relative to the support base based on a compression state of a biasing element. The blade may be insertable into the blade channel by orienting the blade to apply a force to sidewalls of the sleeve to shift the biasing element to a compressed state and rotating the blade proximate to the support base to enable the biasing element to shift to an extended state in which sidewalls of the sleeve define sidewalls of the blade channel.Type: ApplicationFiled: May 7, 2019Publication date: August 22, 2019Inventors: Jörgen Johansson, Eric Lennings
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Publication number: 20190194869Abstract: A covering is particularly suited for use in a machine for producing and/or finishing a paper, cardboard, tissue or pulp web. The covering has a basic structure formed as a part of a flat woven material, which flat woven material is designed as a woven material by interlacing warp threads and weft threads. The portion of the flat woven material has a plurality of sections that are formed integrally with each other, with at least one property of one of the sections differing from the respective property of at least one adjacent section.Type: ApplicationFiled: May 30, 2017Publication date: June 27, 2019Applicant: VOITH PATENT GMBHInventors: JOHAN MALMQUIST, HANS-JOERGEN JOHANSSON
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Patent number: 10327384Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade coupler operably coupled to the rotatable shaft. The blade coupler may define a blade channel configured to at least partially enclose four sides of a blade inserted therein. The blade coupler may include a support base and a sleeve that is movable relative to the support base based on a compression state of a biasing element. The blade may be insertable into the blade channel by orienting the blade to apply a force to sidewalls of the sleeve to shift the biasing element to a compressed state and rotating the blade proximate to the support base to enable the biasing element to shift to an extended state in which sidewalls of the sleeve define sidewalls of the blade channel.Type: GrantFiled: March 14, 2014Date of Patent: June 25, 2019Assignee: HUSQVARNA ABInventors: Jörgen Johansson, Eric Lennings
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Publication number: 20190134844Abstract: A chainsaw (100) includes a power unit and a working assembly powered responsive to operation of the power unit. The working assembly includes a guide bar (120) around which a chain is rotatable. The guide bar (120) includes a first side plate (200) and a second side plate (210) facing each other and extending away from the housing (110) to a nose of the guide bar (120), the first and second side plates (200 and 210) each including an inner sidewall (224 and 222) facing inwardly toward each other. Each of the inner sidewalls (224 and 222) includes a recessed portion (230) at which material of the inner sidewalls (224 and 222) has been removed.Type: ApplicationFiled: April 5, 2017Publication date: May 9, 2019Inventors: Niklas Sarius, Christian Liliegård, Jörgen Johansson