Patents by Inventor Fredrik Klackensjö

Fredrik Klackensjö 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).

  • Publication number: 20230034100
    Abstract: A robotic work tool system (200) comprising a robotic work tool (100), the robotic work tool (100) being configured to determine (410) that the robotic work tool (100) has entered a state of limited movement; determine (420) an exit path; and exit (430) the state of limited movement by navigating the exit path.
    Type: Application
    Filed: December 2, 2020
    Publication date: February 2, 2023
    Inventors: Jonas Holgersson, Stefan Bergström, Hugo Johansson, Erik Starhagen, Claes Johannesson, Marcus Stjärnås, Fredrik Klackensjö, Tommy Glimberg, Stefan Grufman, Mattias Kamfors, Marcus Liljedahl, Björn Mannefred, Beppe Hellsin
  • Publication number: 20220397907
    Abstract: A method (100) of assisting a user of a robotic tool system (10) is disclosed. The robotic tool system (10) comprises a self-propelled robotic tool (1) configured to operate an area in an autonomous manner and a docking station (3) for charging one or more batteries (5) of the robotic tool (1). The method (100) comprises the steps of obtaining (110) inclination data representative of an inclination angle (a0, a1, a2) of the robotic tool (1) when the robotic tool (1) is located on or at the docking station (3) and outputting (120) a notification (n0, n1, n2) based on the inclination data. The present disclosure further relates to a robotic tool (1) and a robotic tool system (10) comprising a robotic tool (1) and a docking station (3).
    Type: Application
    Filed: June 10, 2022
    Publication date: December 15, 2022
    Inventors: Susanne Leijonberger, Anders Sjögren, Fredrik Klackensjö, Mari Ejdehag
  • Patent number: 10149430
    Abstract: Robotic work tool (100) configured for improved turning in a slope (S), said robotic work tool comprising a slope detector (190), at least one magnetic field sensor (170), a controller (110), and at least two driving wheels (130?), the robotic work tool (100) being configured to detect a boundary wire (250) and in response thereto determine if the robotic work tool (100) is in a slope (S), and if so, perform a turn by rotating each wheel (130?) at a different speed thereby reducing a risk of the robotic work tool (100) getting stuck.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: December 11, 2018
    Assignee: HUSQVARNA AB
    Inventors: Jonas Bergström, Fredrik Klackensjö, Olle Markusson
  • Publication number: 20160360695
    Abstract: The invention relates to a cutting blade (110, 500, 600, 700) for a robotic mower (100). The cutting blade includes a first end section (302) and a second end section (304), and two lateral sections (306, 308, 502, 602, 604, 702, 704) extending between the first and second end sections. Further, at least one of the two lateral sections includes at least one cutting portion (310A, 310B, 612, 712A, 712B) configured to cut vegetation and at least one protective portion (312A, 312B, 614, 714A, 714B) configured to protect the at least one cutting portion.
    Type: Application
    Filed: February 26, 2014
    Publication date: December 15, 2016
    Applicant: HUSQVARNA AB
    Inventor: Fredrik Klackensjö
  • Publication number: 20150366130
    Abstract: Robotic work tool (100) configured for improved turning in a slope (S), said robotic work tool comprising a slope detector (190), at least one magnetic field sensor (170), a controller (110), and at least two driving wheels (130?), the robotic work tool (100) being configured to detect a boundary wire (250) and in response thereto determine if the robotic work tool (100) is in a slope (S), and if so, perform a turn by rotating each wheel (130?) at a different speed thereby reducing a risk of the robotic work tool (100) getting stuck.
    Type: Application
    Filed: February 20, 2013
    Publication date: December 24, 2015
    Applicant: HUSQVARNA AB
    Inventors: Jonas Bergström, Fredrik Klackensjö, Olle Markusson