Patents by Inventor Mikael Adolfsson
Mikael Adolfsson 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: 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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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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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: 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: 6227162Abstract: A system (1) for cleaning of intake air (2) for a fan-cooled combustion engine intended for a working tool, such as a chain saw, cutting machine, grasstrimmer or lawn-mower, whose engine is equipped with a fan wheel (3) enclosed in a fan cover (4) for cooling of the engine. A flow duct (5) is connected to the fan cover (4) at least at one of its both ends (6, 7), and a deflection duct (8) is arranged in the wall of the flow duct (5), so that the ducts (5, 8) are forming a T-like crossing, and the deflection duct leads to the engine's inlet duct (9), usually via an inlet volume (10) and a filter (11).Type: GrantFiled: November 12, 1998Date of Patent: May 8, 2001Assignee: Aktiebolaget ElectroluxInventors: Göran Dahlberg, Mikael Adolfsson