Patents Assigned to Husqvarna
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Patent number: 11980956Abstract: A chainsaw includes a housing, a guide bar, projecting from the housing, and one or more handles. The guide bar has a main direction of extension defined by its center-line. The housing comprises an outer shell made of plastic, which has at least a first outer groove filled with a contrasting plastic material, wherein the groove at least partly extends straight in a transverse direction that deviates less than 3 degrees from a direction perpendicular to the main direction of extension of the guide bar. This provides an indication that facilitates precise and safe felling of trees.Type: GrantFiled: November 5, 2019Date of Patent: May 14, 2024Assignee: HUSQVARNA ABInventors: Alex Rasooli, Peter Björkman
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Patent number: 11980124Abstract: A self-propelled robotic lawnmower may include a lawnmower body, a body part movably arranged in relation to the lawnmower body, and an elongated sensor element extending in an interface between the lawnmower body and the body part. The elongated sensor element may be configured to generate a signal when a portion of the elongated sensor element is subjected to a change in thickness in a direction perpendicular to a direction of elongation of the elongated sensor element by a relative movement between the body part and the lawnmower body.Type: GrantFiled: June 4, 2019Date of Patent: May 14, 2024Assignee: HUSQVARNA ABInventors: Stefan Stark, Svante Larsson, Staffan Palm
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Patent number: 11974519Abstract: A robotic lawnmower system comprising a charging station (210) and a robotic lawnmower (100), the charging station comprising a signal generator (240) to which a navigation signal cable (260; 250) is to be connected, the signal generator (240) being configured to transmit a signal (265; 245) through the navigation signal cable (260; 250), and the robotic lawnmower (100) comprising: a propulsion system (130, 50); a sensor (170) configured to sense field values of magnetic fields generated by the signal (265; 245) in the navigation signal cable (260; 250); and a controller (110) configured to determine that the robotic lawnmower (100) is in a docking position; record the field value(s) of the sensed signal; control the propulsion system (130, 150) to reverse out of said docking position; and to control the propulsion system (130,150) to enter into said docking position by sensing a current field value; comparing the current field value to the stored field value(s); and determining how to navigate the robotic laType: GrantFiled: January 21, 2019Date of Patent: May 7, 2024Assignee: HUSQVARNA ABInventor: Jonas Holgersson
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Patent number: 11975437Abstract: A vibration suppressing handle arm (600) for an early entry concrete saw, the handle comprising a joint separating the handle into a first elongated part (120) and a second elongated part (140), wherein the first and second elongated parts are arranged pivotable with respect to each other about the joint, wherein the first part (120) has an elongation direction configured to align with an elongation direction of the second part (140) to form an elongation direction of the handle when the handle is in an unfolded position, the handle further comprising a resilient element arranged to resist but not prevent pivoting by the first elongated part (120) and the second elongated part (140) about the joint.Type: GrantFiled: December 17, 2020Date of Patent: May 7, 2024Assignee: HUSQVARNA ABInventors: Johan Sandwall, Tobias Gustafsson, Eric Hulthe
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Patent number: 11963478Abstract: The present disclosure relates to a self-propelled robotic work tool (1), e.g. an automatic robotic lawn mower, and a corresponding method. The robotic tool comprises an inertia measurement unit (IMU 15) which generally obtains (25) measured IMU parameters regarding the robotic working tool's movement. A prediction algorithm (17) predicts (27,36) required motor currents for driving the robotic work tool's wheels (5) based on the measured IMU parameters. The predicted motor current is compared (29,37) to the actual current used and the difference constitutes an error (19), which is used in a collision detection unit (21). If the collision detection unit (21) senses that the actually used motor current is much higher than the predicted current, a collision may be indicated (31).Type: GrantFiled: June 12, 2019Date of Patent: April 23, 2024Assignee: HUSQVARNA ABInventor: Jonas Holgersson
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Patent number: 11953074Abstract: An outdoor robotic tool comprising a first part and a second part, wherein the first part supports the second part through a suspension arrangement. The suspension arrangement comprises a first component, which comprises at least one magnetic member; and a second component, which comprises at least one magnetic member. The first component is attached to the first part, wherein the second component is attached to the second part, wherein at least one of the magnetic members of suspension arrangement is a permanent magnet; and wherein a magnetic member of the first component is positioned so as to magnetically interact with a magnetic member of the second component when in use. A magnetic field sensing unit may be present that comprises a control unit and a magnetic field sensor. A method for detecting the alignment of the first part relative to the second part, wherein the method comprises detecting the magnetic field using the magnetic field sensing unit.Type: GrantFiled: February 7, 2019Date of Patent: April 9, 2024Assignee: HUSQVARNA ABInventor: Lars Ederfors
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Patent number: 11931750Abstract: A hose nozzle for spraying fluids is disclosed. The hose nozzle comprises a faceplate rotatable about a central pivot axis to two or more user-selectable rotational orientations. The faceplate comprises an upstream sealing surface and two or more entry openings. A seal member defines a seal opening that comprises a portion of a fluid flow pathway within the hose nozzle. The seal member may comprise a downstream sealing surface.Type: GrantFiled: April 1, 2021Date of Patent: March 19, 2024Assignee: HUSQVARNA ABInventors: Andrew Mark Urry, Eric Tres Wangsgaard
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Patent number: 11926887Abstract: A magnesium alloy containing: Al: 0.2-1.6 wt. % Zn: 0.2-0.8 wt. % 5 Mn: 0.1-0.5 wt. % Zr 0-0.5 wt. % La: 1-3.5 wt. % Y: 0.05-3.5 wt. % Ce: 0-2 wt. % 10 Nd: 0-2 wt. % Gd: 0-3 wt. % Pr: 0-0.5 wt. % Be: 0-20 ppm the balance being Mg and incidental elements.Type: GrantFiled: February 17, 2020Date of Patent: March 12, 2024Assignee: HUSQVARNA ABInventors: Martin Almgren, Henrik Assarsson, Simon Hjalmarsson, Xixi Dong, Ji Shouxun, Eric Nyberg, Per Orestig
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Patent number: 11919199Abstract: A cutting and dust or slurry collecting assembly that comprises: a) a circular saw blade (4) b) a blade guard (5) c) a cover device (6), and the cover device (6) has a front end (31), a rear end (32), a top surface (34), a bottom surface (36), elongated sidewalls (35), and a longitudinal passage (45,46) for the saw blade, d) the blade guard (5) and the cover device (6) being pivotally connected or connectable to one another via a hinge (40) in or adjacent to a lower rear corner of the blade guard (5), such that the cover device and the blade guard can be turned in relation to each other, e) a discharge member (52) is provided at the rear of said hinge and has an outlet (58) which can be connected to a vacuum source, f) a connection member (12) connects the discharge member (52) with at least one of the longitudinal passage (45, 46) and the cut created rear of the longitudinal passage, g) that the direction of rotation of the saw blade (4) is such that a circumferential part of the blade which has passed beyonType: GrantFiled: April 26, 2017Date of Patent: March 5, 2024Assignee: HUSQVARNA ABInventors: Pär Carlsson, Håkan Pinzani, Paulo Varella
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Patent number: 11920527Abstract: A powered device may include an engine, a mobility assembly operably coupled to the engine to provide mobility of the powered device responsive at least in part to operation of the engine, a working assembly operably coupled to the engine to perform a working function responsive at least in part to operation of the engine, and a key-operated combination ignition and speed control assembly including switch circuitry configured to control both starting the engine and selection of different selectable positions corresponding to respective different operating speeds for the engine.Type: GrantFiled: October 20, 2020Date of Patent: March 5, 2024Assignee: HUSQVARNA ABInventors: Kenneth Mandeville, Scott Johnson
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Patent number: 11910760Abstract: A watering system (100) includes a watering robot (102). The watering robot (102) further includes an irrigation controller (110) configured to operate within a region (114). A connector portion (106) is coupled to the body (104), and is adapted to couple with the one or more water supplying units (116) to receive water therefrom. The watering system (100) is characterized in that a sensor (130) of the watering robot (102) detects the one more water supplying units (116) to selectively integrates therewith. An actuator (140) of the watering robot (102) at least partially lifts up the watering robot (102) with respect to a ground surface (120) of the region (114). The watering robot (102) automatically couples with the one or more water supplying units (116) through the connector portion (106), and the actuator (140) at least partially lifts up the watering robot (102) with respect to the ground surface (120).Type: GrantFiled: June 2, 2021Date of Patent: February 27, 2024Assignee: HUSQVARNA ABInventors: Christoph Schenk, Rainer Kaupp, Rudolf Pfau, Florian Soor
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Patent number: 11911926Abstract: An element for serial configuration with an adjacent element in an abrasive tool, wherein the element is arranged to be mounted on a flexible drive carrier having a drive direction D. The element comprising at least one protruding member extending in a direction parallel to the drive direction D. The at least one protruding member being configured to overlap with the adjacent element at least when the flexible drive carrier has a straight configuration, and to reduce a width of a gap G formed between the element and the adjacent element when the flexible drive carrier is configured bent in an arcuate form.Type: GrantFiled: October 14, 2019Date of Patent: February 27, 2024Assignee: HUSQVARNA ABInventor: Tristan Nijs
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Patent number: 11913815Abstract: A metering console (100) includes a housing (110) adapted to allow flow of a liquid (F) therethrough. The housing (110) is adapted to attach with one or more gardening devices (132, 152). The metering console (100) includes a display (170) associated with the housing (110). The metering console (100) is characterized in that the display (170) is rotatably engaged with the housing (110) of the metering console (100) such that the display (170) rotates along a central axis (A-A?) of the housing (110).Type: GrantFiled: June 2, 2021Date of Patent: February 27, 2024Assignee: HUSQVARNA ABInventors: Tobias Mack, Matthias Müller-Braun, Reinhold Steck
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Patent number: D1014211Type: GrantFiled: March 9, 2021Date of Patent: February 13, 2024Assignee: HUSQVARNAInventors: Gustav Landberg, Joel Sellstrand
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Patent number: D1014566Type: GrantFiled: June 12, 2019Date of Patent: February 13, 2024Assignee: HUSQVARNAInventors: Rajinder Mehra, Elin Atlebond
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Patent number: D1016009Type: GrantFiled: November 10, 2021Date of Patent: February 27, 2024Assignee: HUSQVARNAInventors: Rajinder Mehra, Malin Andersson, Tor Sigurdson
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Patent number: D1022874Type: GrantFiled: October 21, 2021Date of Patent: April 16, 2024Assignee: HUSQVARNA ABInventors: Rajinder Mehra, Malin Andersson, Patrik Almqvist
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Patent number: D1023276Type: GrantFiled: November 22, 2021Date of Patent: April 16, 2024Assignee: HUSQVARNA ABInventors: Karl Elmestrand, Axel Sjöberg
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Patent number: D1026042Type: GrantFiled: April 19, 2022Date of Patent: May 7, 2024Assignee: HUSQVARNA ABInventors: Rajinder Mehra, Tor Sigurdson, Marcin Widlund
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Patent number: D1027152Type: GrantFiled: November 22, 2021Date of Patent: May 14, 2024Assignee: HUSQVARNA ABInventors: Karl Elmestrand, Axel Sjöberg