Patents by Inventor Stig Fredrik Mathisen
Stig Fredrik Mathisen 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: 11384617Abstract: The following invention relates to a subsea actuator (16?; 16?) for actuating a subsea rotating component (81; 181); comprising: a first biasing element (82; 182); a motor (85; 185); a holding element (83; 100, 183) configured to receive an input force; a rotatable stem (80?, 80?, 250, 84; 80; 200) operatively connectable to the component; a force transmitting arrangement (84, 80?, 80?; 83, 84; 183?, 195, 201; 84, 99, 86, 101, 83) connectable to the first biasing clement (82; 182) and the holding element (83; 100, 183); a first connection which in a first mode is configured to lock the stem (80?, 80?, 250, 84; 80; 200) in a rotatable engagement with the motor (85; 185) and in a second mode is configured to unlock the stem (80?, 80?, 250, 84; 80; 200) from the rotatable engagement with the motor (85; 185) and allow the stem (80?, 80?, 250, 84; 80; 200) to be influenced by the first biasing element (82; 182); wherein the first biasing element (82; 182) and the stem (80?, 80?, 250, 84; 80; 200) are releasably coType: GrantFiled: December 12, 2018Date of Patent: July 12, 2022Assignee: FMC Kongsberg Subsea ASInventors: Simen Landa, Heyn Halfdan Magnus, Stig Fredrik Mathisen, Espen Rinde Brauti
-
Patent number: 11378103Abstract: The present invention relates to a subsea hydraulic control device (10) for hydraulically controlling a subsea module (2). The control device (10) comprises a hydraulic distribution unit (12) with a valve unit (13) and a manifold unit (50), where hydraulic fluid lines are provided in the valve unit (13) and in the manifold unit (50). The hydraulic distribution unit (12) comprises a low pressure hydraulic input port (21) connectable to a low pressure fluid source (LP) and connected to a low pressure fluid line (22) within the hydraulic distribution unit (12), a high pressure hydraulic input port (31) connectable to a high pressure fluid source (HP) and connected to a high pressure fluid line (32) within the hydraulic distribution unit (12), a return port (41) connectable to a return fluid reservoir (R) and connected to a return fluid line (42) within the hydraulic distribution unit (12) and a number of hydraulic output ports (24, 34) connectable to subsea actuators (A) of the subsea module (2).Type: GrantFiled: June 20, 2018Date of Patent: July 5, 2022Assignee: FMC Kongsberg Subsea ASInventors: Stig Fredrik Mathisen, Heyn Halfdan Magnus, Dharmesh Gadaria, Simen Landa, Kandasamy Balendran
-
Publication number: 20210079933Abstract: The present invention relates to a subsea hydraulic control device (10) for hydraulically controlling a subsea module (2). The control device (10) comprises a hydraulic distribution unit (12) with a valve unit (13) and a manifold unit (50), where hydraulic fluid lines are provided in the valve unit (13) and in the manifold unit (50). The hydraulic distribution unit (12) comprises a low pressure hydraulic input port (21) connectable to a low pressure fluid source (LP) and connected to a low pressure fluid line (22) within the hydraulic distribution unit (12), a high pressure hydraulic input port (31) connectable to a high pressure fluid source (HP) and connected to a high pressure fluid line (32) within the hydraulic distribution unit (12), a return port (41) connectable to a return fluid reservoir (R) and connected to a return fluid line (42) within the hydraulic distribution unit (12) and a number of hydraulic output ports (24, 34) connectable to subsea actuators (A) of the subsea module (2).Type: ApplicationFiled: June 20, 2018Publication date: March 18, 2021Inventors: Stig Fredrik Mathisen, Heyn Halfdan Magnus, Dharmesh Gadaria, Simen Landa, Kandasamy Balendran
-
Patent number: 10865895Abstract: The present invention relates to a subsea control valve (10) for controlling the supply of hydraulic fluid to a subsea fluid-actuated device (4). The valve comprises a housing (11) with an input fluid line bore (16) connectable to a input fluid system (2), a return fluid line bore (17) connectable to a return fluid system (3) and an actuator fluid line bore (18) connectable to the fluid-actuated device (4). A ball valve member (20) with a through bore (21) is pivotably connected within the housing (11) between the input fluid line bore (16), the return fluid line bore (17) and the actuator fluid line bore (18), the ball valve member (20) having a first and a second position. The actuator fluid line bore (18) and the return fluid line bore (17) are connected to each other via the through bore (21) when the ball valve member (20) is in its first position, thereby allowing fluid to be returned from the fluid-actuated device (4) to the return fluid system (3).Type: GrantFiled: September 22, 2017Date of Patent: December 15, 2020Assignee: FMC Kongsberg Subsea ASInventors: Heyn Halfdan Magnus, Stig Fredrik Mathisen
-
Publication number: 20200347690Abstract: The following invention relates to a subsea actuator (16?; 16?) for actuating a subsea rotating component (81; 181); comprising: a first biasing element (82; 182); a motor (85; 185); a holding element (83; 100, 183) configured to receive an input force; a rotatable stem (80?, 80?, 250, 84; 80; 200) operatively connectable to the component; a force transmitting arrangement (84, 80?, 80?; 83, 84; 183?, 195, 201; 84, 99, 86, 101, 83) connectable to the first biasing clement (82; 182) and the holding element (83; 100, 183); a first connection which in a first mode is configured to lock the stem (80?, 80?, 250, 84; 80; 200) in a rotatable engagement with the motor (85; 185) and in a second mode is configured to unlock the stem (80?, 80?, 250, 84; 80; 200) from the rotatable engagement with the motor (85; 185) and allow the stem (80?, 80?, 250, 84; 80; 200) to be influenced by the first biasing element (82; 182); wherein the first biasing element (82; 182) and the stem (80?, 80?, 250, 84; 80; 200) are releasably coType: ApplicationFiled: December 12, 2018Publication date: November 5, 2020Inventors: Simen Landa, Heyn Halfdan Magnus, Stig Fredrik Mathisen, Espen Rinde Brauti
-
Patent number: 10822906Abstract: The present invention relates to a subsea electric power and communication module (10) for controlling a subsea module (2) of a subsea oil/gas installation (1). The module (10) comprises a housing (20), a first outer connector (30) provided outside of the housing (20), where the first outer connectors (30) is configured to be connected to a subsea module (2), and a control device (80) comprising electric power supply circuitry (80a) and/or communication circuitry (80b) 40b provided within the pressure sealed compartment (25). A penetrator device (50) is connected between the first outer connector (30) and the control device (80). The penetrator device (50) comprises a printed circuit board (51), a first sealing device (53) and a second sealing device (56) for sealing off a first area (A53) and a second area (A56) of the printed circuit board (51).Type: GrantFiled: June 6, 2018Date of Patent: November 3, 2020Assignee: FMC Kongsberg Subsea ASInventors: Stig Fredrik Mathisen, Heyn Halfdan Magnus, Vidar Nicolaysen, Egil Mulstad Skrivervik
-
Publication number: 20200182003Abstract: The present invention relates to a subsea electric power and communication module (10) for controlling a subsea module (2) of a subsea oil/gas installation (1). The module (10) comprises a housing (20), a first outer connector (30) provided outside of the housing (20), where the first outer connectors (30) is configured to be connected to a subsea module (2), and a control device (80) comprising electric power supply circuitry (80a) and/or communication circuitry (80b) 40b provided within the pressure sealed compartment (25). A penetrator device (50) is connected between the first outer connector (30) and the control device (80). The penetrator device (50) comprises a printed circuit board (51), a first sealing device (53) and a second sealing device (56) for sealing off a first area (A53) and a second area (A56) of the printed circuit board (51).Type: ApplicationFiled: June 6, 2018Publication date: June 11, 2020Inventors: Stig Fredrik Mathisen, Heyn Halfdan Magnus, Vidar Nicolaysen, Egil Mulstad Skrivervik
-
Publication number: 20190226590Abstract: The present invention relates to a subsea control valve (10) for controlling the supply of hydraulic fluid to a subsea fluid-actuated device (4). The valve comprises a housing (11) with an input fluid line bore (16) connectable to a input fluid system (2), a return fluid line bore (17) connectable to a return fluid system (3) and an actuator fluid line bore (18) connectable to the fluid-actuated device (4). A ball valve member (20) with a through bore (21) is pivotably connected within the housing (11) between the input fluid line bore (16), the return fluid line bore (17) and the actuator fluid line bore (18), the ball valve member (20) having a first and a second position. The actuator fluid line bore (18) and the return fluid line bore (17) are connected to each other via the through bore (21) when the ball valve member (20) is in its first position, thereby allowing fluid to be returned from the fluid-actuated device (4) to the return fluid system (3).Type: ApplicationFiled: September 22, 2017Publication date: July 25, 2019Inventors: Heyn Halfdan Magnus, Stig Fredrik Mathisen