Patents by Inventor Øivind Rokne

Øivind Rokne 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).

  • Subsea actuator with override function, as well as a method of operating an actuator
    Patent number: 11286745
    Abstract: It is described a subsea electric actuator (100) operating a linear valve (200), the actuator (100) comprising a roller-screw (2) for translating a rotational movement of a motor (3) to a linear movement of a gate rod (4) operating the valve (200), the actuator (100) comprising: —an actuator housing (101); —an outer roller screw part (2?) rotationally connected to the motor (3) and comprising internal threads forming a first part of a first connection (10), —an inner roller screw part (2?) comprising external threads forming a second part of the first connection (10) and being arranged inside the outer roller screw part (2?), a surface of the inner roller screw part (2?) having a first interface forming a first part of a second connection (20?; 20?) connecting the inner roller screw part (2?) to a non-rotational part of the actuator (100), the second connection (20?, 20?) is configured to rotationally lock the inner roller screw part (2?) giving linear movement of the inner roller screw part (2?) when the out
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: March 29, 2022
    Assignee: FMC Kongsberg Subsea AS
    Inventors: Geir Tandberg, Øivind Rokne
  • Subsea Actuator with Override Function, as well as a Method of Operating an Actuator
    Publication number: 20210363857
    Abstract: It is described a subsea electric actuator (100) operating a linear valve (200), the actuator (100) comprising a roller-screw (2) for translating a rotational movement of a motor (3) to a linear movement of a gate rod (4) operating the valve (200), the actuator (100) comprising: —an actuator housing (101); —an outer roller screw part (2?) rotationally connected to the motor (3) and comprising internal threads forming a first part of a first connection (10), —an inner roller screw part (2?) comprising external threads forming a second part of the first connection (10) and being arranged inside the outer roller screw part (2?), a surface of the inner roller screw part (2?) having a first interface forming a first part of a second connection (20?; 20?) connecting the inner roller screw part (2?) to a non-rotational part of the actuator (100), the second connection (20?, 20?) is configured to rotationally lock the inner roller screw part (2?) giving linear movement of the inner roller screw part (2?) when the out
    Type: Application
    Filed: January 11, 2019
    Publication date: November 25, 2021
    Inventors: Geir Tandberg, Øivind Rokne