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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Publication number: 20190118404Abstract: 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: ApplicationFiled: April 5, 2017Publication date: April 25, 2019Applicant: HUSQVARNA ABInventors: Niklas Sarius, Christian Liliegård, Jörgen Johansson
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Publication number: 20190120407Abstract: 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: ApplicationFiled: April 7, 2016Publication date: April 25, 2019Inventors: Janne Huovila, Jörgen Johansson, Kim Rinamo
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Publication number: 20180050463Abstract: 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: ApplicationFiled: March 4, 2016Publication date: February 22, 2018Inventors: Jörgen Johansson, Christian Liliegård
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Publication number: 20180043567Abstract: 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: ApplicationFiled: March 1, 2016Publication date: February 15, 2018Inventor: Jörgen Johansson
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Publication number: 20180015632Abstract: The invention relates to a chain saw comprising a guide bar (1) for guiding a saw chain, wherein the guide bar (1) comprises two side plates (2, 3) between which a sprocket wheel (4) is rotatable arranged, wherein the sprocket wheel (4) is supported in the guide bar (1) by means of a bearing (5) and wherein the bearing (5) is supplied by a lubricant by means of a lubrication system (6). To improve the lubrication of the bearing the invention proposes that the lubrication system (6) comprises a lubrication reservoir (7) which is in fluidic connection (8) with the bearing (5), wherein the lubrication reservoir (7) is sealed against the environment by at least one valve element (9).Type: ApplicationFiled: December 15, 2014Publication date: January 18, 2018Inventor: Jörgen Johansson
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Patent number: 9491907Abstract: A walk-behind lawn mower comprising a body with an engine driving a cutting blade, and a handle assembly which is pivotably connected to the body. The lawn mower furthermore comprises a handle control arrangement for controlling pivotal movement of the handle assembly relative to the body, between a working position and a pivoted position. The handle control arrangement comprises a locking member, selectively displaceable between an open state in which the locking member allows pivotal movement of the handle assembly from the working position to the pivoted position, and a locked state in which the locking member inhibits pivotal movement of the handle assembly from the working position to the pivoted position. The handle control arrangement also comprises an actuating member operatively connected to the locking member and controlling the state of the locking member.Type: GrantFiled: February 21, 2011Date of Patent: November 15, 2016Assignee: HUSQVARNA ABInventors: Fredrik Edholm, Helena André, Jörgen Johansson, Mikael Adolfsson, Magnus Henriksson, Jasmin Insanic, Jonas Tibbelin
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Publication number: 20160037716Abstract: 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: March 14, 2014Publication date: February 11, 2016Inventors: Jörgen Johansson, Eric Lennings
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Publication number: 20160014957Abstract: A blade coupler for coupling a blade to a rotatable shaft of a lawn care device may include a blade coupler base configured to rotate responsive to rotation of the rotatable shaft, a holding bolt configured to hold the blade proximate to the blade coupler base responsive to application of a clamping force thereon, and a centrifugal clamp assembly configured to increase the clamping force applied to the holding bolt responsive to an increase in speed of rotation of the rotatable shaft.Type: ApplicationFiled: March 14, 2014Publication date: January 21, 2016Applicant: HUSQVARNA ABInventors: Jörgen Johansson, Eric Lennings
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Patent number: 9078395Abstract: A folding arrangement of a walk-behind power tool includes a hinge having a first hinge part and a second hinge part pivotally interconnected about a hinge axis, so as to enable pivoting of the hinge between a folded position and a closed position. The first hinge part has a first opening for passing through a cable harness. The second hinge part has a second opening for receiving the cable harness. The first and second openings are facing each other when the hinge is in the closed position. At least one of the first and second hinge parts has a protruding portion for directing the cable harness towards the first and second opening when the hinge pivots from the folded position to the closed position.Type: GrantFiled: October 27, 2011Date of Patent: July 14, 2015Assignee: HUSQVARNA ABInventors: Jörgen Johansson, Helena André, Kent Ludwigsson
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Publication number: 20150150192Abstract: The present invention discloses a folding arrangement (122) of a walk-behind power tool (100). The folding arrangement (122) includes a hinge (202) having a first hinge part (204) and a second hinge part (206). The first hinge part (204) is arranged for receiving an end of a first elongate member (118), while the second hinge part (206) is arranged for receiving an end of a second elongate member (120). Further, the first (204) and second (206) hinge parts are pivotally interconnected about a hinge axis (A), so as to enable pivoting of the hinge between a folded position and a closed position. Moreover, the first hinge part (204) has a first opening (212) arranged for passing through a cable harness (121) arriving from a channel or groove provided in the first elongate member (118). Similarly, the second hinge part (206) has a second opening (216) arranged for receiving the cable harness (121) arriving from the first opening (212).Type: ApplicationFiled: October 27, 2011Publication date: June 4, 2015Applicant: Husqvarna ABInventors: Jörgen Johansson, Helena André, Kent Ludwigsson
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Patent number: 8899006Abstract: A walk behind garden tool chassis including a first chassis part and a second chassis part. The first chassis part is arranged to receive an engine of the garden tool, and to receive a first wheel assembly of the garden tool. The second chassis part is arranged to receive a handle assembly of the garden tool, and to receive a second wheel assembly of the garden tool. The first and second chassis parts are interconnected by vibration dampers.Type: GrantFiled: June 22, 2011Date of Patent: December 2, 2014Assignee: Husqvarna ABInventors: Fredrik Edholm, Jasmin Insanic, Jörgen Johansson, Magnus Henriksson, Jonas Tibbelin
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Patent number: 8844253Abstract: A front baffle assembly (1) for a lawn mower (30) is provided. The front baffle assembly (1) is adapted for attachment to a lawn mower chassis (2), and comprises a stopper (5a, 5b) configured to abut against an upper side of the chassis (2) and a front baffle (4) configured to abut against a lower side of the chassis (2). The front baffle assembly (1) comprises a catch element (6a, 6b) which protrudes downwardly from the stopper (5a, 5b) and is arranged to extend through the chassis (2) and beyond a lower side of the front baffle (4). The front baffle assembly (1) comprises a front axle (7) arranged to be received between the catch element (6a, 6b) and the lower side of the front baffle (4) to clamp the chassis (2) between the stopper (5a, 5b) and the front baffle (4).Type: GrantFiled: May 31, 2011Date of Patent: September 30, 2014Assignee: Husqvarna ABInventors: Mikael Adolfsson, Fredrik Edholm, Helena André, Magnus Henriksson, Jasmin Insanic, Jörgen Johansson, Jonas Tibbelin
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Publication number: 20140196426Abstract: Embodiments herein relate to a walk behind garden tool chassis, which chassis comprises a first chassis part (11) and a second chassis part (12). The first chassis part (11) is arranged to receive an engine (2) of the garden tool (1), and to receive a first wheel assembly (3) of the garden tool (1). The second chassis part (12) is arranged to receive a handle assembly (4) of the garden tool (1), and to receive a second wheel assembly (5) of the garden tool (1). The first and second chassis parts (11, 12) are interconnected by means of vibration damping means (13).Type: ApplicationFiled: June 22, 2011Publication date: July 17, 2014Applicant: HUSQVARNA ABInventors: Fredrik Edholm, Jasmin Insanic, Jörgen Johansson, Magnus Henriksson, Jonas Tibbelin
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Publication number: 20140190141Abstract: A walk-behind lawn mower comprising a body with an engine driving a cutting blade, and a handle assembly which is pivotably connected to the body. The lawn mower furthermore comprises a handle control arrangement for controlling pivotal movement of the handle assembly relative to the bod, between a working position and a pivoted position. The handle control arrangement comprises a locking member, selectively displaceable between an open state in which the locking member allows pivotal movement of the handle assembly from the working position to the pivoted position, and a locked state in which the locking member inhibits pivotal movement of the handle assembly from the working position to the pivoted position. The handle control arrangement also comprises an actuating member operatively connected to the locking member and controlling the state of the locking member.Type: ApplicationFiled: February 21, 2011Publication date: July 10, 2014Applicant: HUSQVARNA ABInventors: Fredrik Edholm, Helena André, Jörgen Johansson, Mikael Adolfsson, Magnus Henriksson, Jasmin Insanic, Jonas Tibbelin
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Publication number: 20140109539Abstract: A front baffle assembly (1) for a lawn mower (30) is provided. The front baffle assembly (1) is adapted for attachment to a lawn mower chassis (2), and comprises a stopper (5a, 5b) configured to abut against an upper side of the chassis (2) and a front baffle (4) configured to abut against a lower side of the chassis (2). The front baffle assembly (1) comprises a catch element (6a, 6b) which protrudes downwardly from the stopper (5a, 5b) and is arranged to extend through the chassis (2) and beyond a lower side of the front baffle (4). The front baffle assembly (1) comprises a front axle (7) arranged to be received between the catch element (6a, 6b) and the lower side of the front baffle (4) to clamp the chassis (2) between the stopper (5a, 5b) and the front baffle (4).Type: ApplicationFiled: May 31, 2011Publication date: April 24, 2014Applicant: HUSQVARNA ABInventors: Mikael Adolfsson, Fredrik Edholm, Helena André, Magnus Henriksson, Jasmin Insanic, Jörgen Johansson, Jonas Tibbelin
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Publication number: 20140083072Abstract: 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 releasably 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: ApplicationFiled: May 31, 2011Publication date: March 27, 2014Applicant: Husqvarna ABInventors: Fredrik Edholm, Helena Forsberg, Magnus Henriksson, Jasmin Insanic, Jörgen Johansson, Jonas Tibbelin, Mikael Adolfsson, Karl Ljungquist
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Publication number: 20140047812Abstract: A lawn mower wheel (2) is provided. The lawn mower wheel (2) comprises a hub (3) arranged for attachment to a lawn mower wheel axle extending in an axial direction. The lawn mower wheel (2) comprises a tread (4). The tread (4) has a tread width (8) in the axial direction. The tread is a web structure of material portions (6) separated by through openings (7) to reduce the area of the tread (4) onto which grass clippings may attach. The lawn mower wheel (2) comprises a rim (5). The rim (5) extends from the hub (3) to the tread (4). The rim (5) has a rim width (9) in the axial direction. The rim width (9) corresponds to less than half of the tread width (8), to allow grass clippings to fall from one through opening (7) of the tread (4) to another.Type: ApplicationFiled: April 27, 2011Publication date: February 20, 2014Applicant: HUSQVARNA ABInventors: Jörgen Johansson, Mikael Adolfsson, Magnus Henriksson, Jasmin Insanic, Jonas Tibbelin, Fredrik Edholm, Helena Forsberg
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Patent number: 8327613Abstract: A lawn mower deck may include a housing for a cutter and a protruding portion extending from a base of the housing. An attachment portion extends from the protruding portion back toward the housing and is fastened to the housing at a location separate from the protruding portion. The housing, the protruding portion and the attachment portion are formed from one piece of material.Type: GrantFiled: November 22, 2006Date of Patent: December 11, 2012Assignee: Husqvarna ABInventors: Jörgen Johansson, Bengt Ahlund, Norbert Rosenpek, Cecilia Niva, Janarne Wetterheim
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Publication number: 20110108335Abstract: A drive hand-control system (6) mainly located at a lawn mower handle arrangement (5) intended for guidance of the lawn mower by an operator, the lawn mower having at least one power unit for driving at least one propulsion member and a cutting member, a drive arrangement for transmitting drive force to the at least one propulsion member and an operator presence control (7) located at the lawn mower handle arrangement (5) preferably for hand engagement by the operator, the drive hand-control system (6) comprising a drive engagement control (8) having at least two positions, where a first position disengages the drive of the at least one propulsion member and a second position engages the drive of the at least one propulsion member, and the drive engagement control (8) being switchable between the at least two positions by the operator, and the first position and the second position of the drive engagement control (8) being stable positions, which are stable without any effort from the operator, except for theType: ApplicationFiled: June 30, 2008Publication date: May 12, 2011Inventors: Andreas Levander, Helena Forsberg, Jörgen Johansson
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Publication number: 20100170212Abstract: A self-propelled lawn mower (1) is disclosed, comprising a chassis (2) and at least one drive axle (3) for driving a wheel of the lawn mower (1), wherein the at least one drive axle (3) is displaceably mounted relative to the chassis (2) in a direction perpendicular to a length direction of the at least one drive axle (3).Type: ApplicationFiled: January 12, 2007Publication date: July 8, 2010Inventor: Jörgen Johansson