Patents by Inventor John Karstein TØNNESSEN

John Karstein TØNNESSEN 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).

  • Locking device for a wear part of a soil-working implement
    Patent number: 10130021
    Abstract: A locking device (3) for a wearing part (2) detachably attached to a soil-working working element (1) by means of quick-coupling elements (11, 21), wherein a locking element (31) attached to the working element (1) includes an end portion (312) projecting from the working element (1) and being provided with an engagement section (313) arranged to engage with a lock-receiving element (22) arranged on a lee-side face (2a) of the wearing part (2).
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: November 20, 2018
    Assignee: KVERNELAND GROUP OPERATIONS NORWAY AS
    Inventors: Magne Skjæveland, John Karstein Tønnessen
  • LOCKING DEVICE FOR A WEAR PART OF A SOIL-WORKING IMPLEMENT
    Publication number: 20170013769
    Abstract: A locking device (3) for a wearing part (2) detachably attached to a soil-working working element (1) by means of quick-coupling elements (11, 21), wherein a locking element (31) attached to the working element (1) includes an end portion (312) projecting from the working element (1) and being provided with an engagement section (313) arranged to engage with a lock-receiving element (22) arranged on a lee-side face (2a) of the wearing part (2).
    Type: Application
    Filed: February 25, 2015
    Publication date: January 19, 2017
    Applicant: KVERNELAND GROUP OPERATIONS NORWAY AS
    Inventors: Magne SKJAEVELAND, John Karstein TØNNESSEN