Patents by Inventor Fredrik Sjödahl

Fredrik Sjödahl 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).

  • Patent number: 11788252
    Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: October 17, 2023
    Assignee: HUSQVARNA AB
    Inventors: Lars Gustafsson, Rolf Johansson, Fredrik Sjödahl, Tobias Nilsson, Donald F. Meister
  • Publication number: 20230278259
    Abstract: A cutting segment (110) for mounting onto a saw blade to provide an abrasive operation by the saw blade, the cutting segment comprising a body (200) having a cutting surface (210) facing in a cutting direction (C), and side surfaces (220) facing laterally (L) with respect to the cutting direction (C), wherein a plurality of protrusions (230) extend laterally from the sides (220), and wherein the cutting segment (110, 410, 510) constituted by the body (200) and the protrusions (230) is formed by a homogenous mixture of metal powder and diamond granules.
    Type: Application
    Filed: August 3, 2021
    Publication date: September 7, 2023
    Inventors: Philippe Uytters, Brianna Welch, Fredrik Sjödahl, Salvatore Callari
  • Patent number: 11639592
    Abstract: A spacer structure (204; 205) for a saw disc assembly of a sawing machine (4), comprises a hub device (220) having a central axis and being adapted to be coaxially arranged between a pair of axially peripheral saw discs. According to the invention, said hub device (220) is configured and adapted to detachably or non-detachably receive a proximal portion (231) of an elongated spacer means (230) in a substantially radial manner in relation to said hub device, said elongated spacer means (230) being adapted to be arranged between said pair of saw discs, a distal portion (235) of said elongated spacer means (230) being constituted and adapted to detachably or non-detachably connect to said pair of peripheral saw discs.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: May 2, 2023
    Assignee: HUSQVARNA AB
    Inventors: Tobias Nilsson, Fredrik Sjödahl
  • Publication number: 20220205216
    Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Inventors: Lars Gustafsson, Rolf Johansson, Fredrik Sjödahl, Tobias Nilsson, Donald F. Meister
  • Patent number: 11280060
    Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: March 22, 2022
    Assignee: Husqvarna AB
    Inventors: Lars Gustafsson, Rolf Johansson, Fredrik Sjödahl, Tobias Nilsson, Donald F. Meister
  • Patent number: 10370820
    Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: August 6, 2019
    Assignee: HUSQVARNA AB
    Inventors: Lars Gustafsson, Rolf Johansson, Fredrik Sjödahl, Tobias Nilsson, Donald F. Meister
  • Publication number: 20190093314
    Abstract: A spacer structure (204; 205) for a saw disc assembly of a sawing machine (4), comprises a hub device (220) having a central axis and being adapted to be coaxially arranged between a pair of axially peripheral saw discs. According to the invention, said hub device (220) is configured and adapted to detachably or non-detachably receive a proximal portion (231) of an elongated spacer means (230) in a substantially radial manner in relation to said hub device, said elongated spacer means (230) being adapted to be arranged between said pair of saw discs, a distal portion (235) of said elongated spacer means (230) being constituted and adapted to detachably or non-detachably connect to said pair of peripheral saw discs.
    Type: Application
    Filed: March 3, 2016
    Publication date: March 28, 2019
    Inventors: Tobias Nilsson, Fredrik Sjödahl
  • Publication number: 20190078293
    Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.
    Type: Application
    Filed: November 12, 2018
    Publication date: March 14, 2019
    Inventors: Lars Gustafsson, Rolf Johansson, Fredrik Sjödahl, Tobias Nilsson, Donald F. Meister
  • Publication number: 20160130781
    Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.
    Type: Application
    Filed: January 19, 2016
    Publication date: May 12, 2016
    Inventors: Lars Gustafsson, Rolf Johansson, Fredrik Sjödahl, Tobias Nilsson, Donald F. Meister
  • Patent number: D995585
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: August 15, 2023
    Assignee: HUSQVARNA AB
    Inventors: Fredrik Sjödahl, Salvatore Callari, Brianna Welch
  • Patent number: D994737
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: August 8, 2023
    Assignee: HUSQVARNA AB
    Inventors: Fredrik Sjödahl, Salvatore Callari, Brianna Welch
  • Patent number: D999265
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: September 19, 2023
    Assignee: HUSQVARNA AB
    Inventors: Fredrik Sjödahl, Salvatore Callari, Brianna Welch