Submerged Object Patents (Class 114/244)
  • Patent number: 11077920
    Abstract: A marine array having various embodiments of a modular foil system is disclosed. The modular foil system may be configured to generate lift when towed in a marine environment, and thus used to move, position, and/or depress instrument of the array. The modular foil system may include multiple groups of foil sections, each having an angle of attack that is adjustable relative to other groups of foil sections. For example, each group may be supported by a pair of through cables, and an actuator may adjust a tension in one or both of through cables, thereby alerting the angle of attack. The pair of through cables may converge toward one another at connection points adjacent opposing ends of a given group of foil sections of the modular system. The connection points thus establishing a modular framework to couple the given group to other groups of foils of the system.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: August 3, 2021
    Assignee: Ion Geophysical Corporation
    Inventor: Daniel George Martin
  • Patent number: 11048003
    Abstract: A system for bridle bite adjustment can include a tow rope coupled to a paravane at a first position on a lever arm and a spur line coupled to the paravane at a second position on the lever arm. The system can also include a winch to adjust a deployed length of the tow rope. The tow rope and the lever arm can adjust a bridle bite of the paravane by when the deployed length of the tow rope is adjusted by the winch, thereby balancing tension between the tow rope and the spur line.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: June 29, 2021
    Assignee: PGS GEOPHYSICAL AS
    Inventor: Daniel Lindberg
  • Patent number: 11027806
    Abstract: Apparatus and methods are disclosed relating to a body towable behind a vessel in a body of water, an arm rotatably coupled to the body, and one or more foils disposed on the arm. The arm, when deployed, is configured to be free to rotate as the apparatus is towed through the body of water. The one or more foils are configured to generate lift as the apparatus is towed. Due to the free rotation of the arm, the foils impart tension force to the body and not torque forces.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: June 8, 2021
    Assignee: PGS Geophysical AS
    Inventor: Rune Sindre Voldsbekk
  • Patent number: 11018489
    Abstract: A terminal structure of an armored cable includes an end of an armored cable, a terminal metal fitting, and a support. The end includes a core, and an armoring including armor wires made of copper or copper alloy disposed on an outer circumference of the core. The terminal metal fitting is attached to an end of each armor wire. The support is disposed on a tip side of the core and supports a plurality of the terminal metal fittings. The support includes a base plate and a fixing member. The base plate is provided with a first through hole into which the core is inserted, and second through holes which are provided on an outer circumference of the first through hole and into each of which a corresponding one of the terminal metal fittings is inserted. The fixing member fixes each terminal metal fitting to the base plate.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: May 25, 2021
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tatsuya Kazama, Takehiro Nozaki
  • Patent number: 10921474
    Abstract: The invention relates to a seismic streamer (1) for underwater towing at a towing speed in ice-free or wholly or partially icy water, the streamer (1) is provided with birds (2) spaced along the streamer, the streamer including the birds (2) has negative buoyancy, the birds have wings (8) which can be set so that the birds during movement in the water apply an upward or downward force on the streamer. The streamer (1) is provided with buoyant bodies (4) spaced along the streamer, the buoyant bodies are connected to the streamer by spacer elements (5), the streamer including the birds, the buoyant bodies with associated spacer elements and any other equipment together have positive buoyancy. The invention also relates to a corresponding method for securing a seismic streamer (1) from damage at a substantial reduction or cessation of towing speed when towing underwater in ice-free or wholly or partially icy water.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: February 16, 2021
    Assignee: POLARCUS DMCC
    Inventor: Erik Godøy
  • Patent number: 10894588
    Abstract: An electromagnet can be used to provide a controlled magnetic field, for example for the purpose of minesweeping. The electromagnet is constructed of a material which has a Curie temperature, such that the electromagnet can be stored at a temperature above the Curie temperature, but deployed below the Curie temperature in use.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: January 19, 2021
    Assignee: THALES HOLDINGS UK PLC
    Inventors: Sasha Roberts, Andrew Bond
  • Patent number: 10802490
    Abstract: Described herein are embodiments of an autonomous drone for refueling. The autonomous drone may comprise a fuel storage area; a fuel delivery mechanism coupled to the fuel storage area; a delivery connection coupled to the fuel delivery mechanism; a drive mechanism; and a central controller. The central controller may be configured to receive a refueling location; and control the drive mechanism to pilot the autonomous drone to the refueling location.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: October 13, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Ryan C. Harris, Matthew A. Jansma
  • Patent number: 10669137
    Abstract: A compact and simplified heave compensation system for reducing the effect of waves or wavelike movements on a lifting device. The system can have active and passive heave compensation components. An overload protection to protect lifting equipment can also be implemented. The system enables accurate load and displacement calculations, as well as simplifying the control schemes utilized for lifting devices.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: June 2, 2020
    Assignee: WT INDUSTRIES, LLC
    Inventor: Douglas Patrick Trail
  • Patent number: 10583905
    Abstract: A submersible inspection drone used for inspection can include a ballast system used to control depth of the submersible inspection drone. The submersible can be configured to communicate to a base station using a wireless transmitter and receiver. The ballast system can include a pressure vessel for storing fluid and a bag for inflating and deflating as it receives a fluid. Buoyancy of the submersible inspection drone can be provided by change in density of the pressure vessel as a compressible gas is expanded when the ballast bag is caused to inflate or deflate. A pump can be used to draw fluid from the ballast bag and store the fluid in the pressure vessel. In one form the pressure vessel can include a compressible fluid and an incompressible fluid, where the incompressible fluid is used to inflate and deflate the bag.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: March 10, 2020
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Gregory Cole, William Eakins, Daniel Lasko, Harshang Shah, Thomas Fuhlbrigge, Biao Zhang, Sanguen Choi, Luiz Cheim, Poorvi Patel, Andrew Salm
  • Patent number: 10578760
    Abstract: The invention in particular relates to a method for controlling the horizontal position of a seismic cable adapted for acquiring seismic data midwater. The method comprises, based on a deviation observed between the position of the seismic cable and a setpoint horizontal position, a correction of the position of the seismic cable through an adjustment of the forces respectively exerted by lead-in cables on the ends of the seismic cable, the exerted forces simultaneously and each having an axial component and a lateral component relative to the seismic cable at at least one moment of the correction. This allows an easy to implement and relatively precise control of the horizontal position of a seismic cable adapted for acquiring seismic data midwater and kept stationary or quasi-stationary during the data acquisition.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: March 3, 2020
    Assignee: KIETTA
    Inventors: Luc Haumonte, Divine Maalouf, Michel Manin
  • Patent number: 10532812
    Abstract: A multi-hull seaplane configured to eliminate most porpoising modes (only the low angle planing remains) by separating the forward and aft hulls and staggering them transversely so as the water flow from the forward hulls does not strike the rear hulls at planing speeds thereby eliminating afterbody induced porpoising. The forward and aft hulls are offset laterally with possible vertical offset and longitudinally to maintain lateral and longitudinal stability over all speed regimes.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: January 14, 2020
    Assignee: WAVE AIRCRAFT, INC.
    Inventors: Perry Gino DiClemente, William Gary Horn, James Campbell Davis
  • Patent number: 10516854
    Abstract: An underwater camera assembly is configured to be dragged behind a boat underwater. The camera assembly includes a housing having a hollow interior that is configured to hold a camera in waterproof manner. The camera assembly includes at least one rail disposed along an outer surface of the housing and being configured to slidingly receive and interlockingly engage a first accessory (camera positioning fin). The camera assembly can further include a second accessory (trolling fin) that is also interlockingly, yet releasably, engaged to the housing.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: December 24, 2019
    Assignee: OUTDOOR'S INSIGHT, INC.
    Inventor: Thomas Maschhoff
  • Patent number: 10457356
    Abstract: A method for handling a cable that is faired by means of a fairing, the cable towed by a ship on board which there is a winch allowing the faired cable to be wound in and paid out through a faired-cable guide device, the method comprises: a first step of monitoring the cable, making it possible to detect whether the fairing is experiencing a double twist around the cable comprising an immersed full twist and an airborne full twist, and, when a double twist is detected, a first step of hauling in the faired cable, during which step the faired cable is hauled in, the first hauling step being carried out in such a way that the immersed full twist at least partially leaves the water and does not enter the guide device.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: October 29, 2019
    Assignee: THALES
    Inventors: François Warnan, Dominique Durand, Jean-Philippe Longuet, Marc Lazzarini, Stéphane Autret, Jean-Jacques Lossec, Philippe Prost
  • Patent number: 10435118
    Abstract: A towed vessel suitable for containing and transporting various liquids is disclosed. The vessel further comprises various features useful in the transportation, navigation, and storage of the towable vessel, both when in use for transporting fluids and when transported in an emptied state. Such features include navigational and positioning devices and methods, power supply devices and methods, and means for filling, inflating, emptying, and deflating a non-rigid, towed vessel. Aspects of embodiments of the present invention further include features useful for purifying or preserving the purity of the fluid to be transported.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: October 8, 2019
    Inventors: Allen Szydlowski, Ian Szydlowski
  • Patent number: 10351212
    Abstract: A recovery system for recovering an autonomous underwater vehicle from a ship, the underwater vehicle comprising a front portion referred to as the nose, the system comprising: a receiving device comprising a stop on which the nose of the underwater vehicle is capable of bearing, blocking means making it possible to secure the underwater vehicle to the stop, a flexible link intended to provide the interface between the receiving device and the ship, the flexible link being arranged so the ship pulls the assembly formed by the receiving device and the underwater vehicle on the front of the underwater vehicle when the latter is rigidly connected to the stop, stabilization means configured to make it possible to control the depth and the attitude, in particular the list and trim of the assembly formed by the receiving device and the underwater vehicle when the latter is rigidly connected to the stop.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: July 16, 2019
    Assignee: THALES
    Inventors: Michaël Jourdan, Albert Tom, Pierre Guthmann
  • Patent number: 10310126
    Abstract: A sea bed survey system being configured to be towed by a towing body (12) is provided. The system comprises at least one sensor carrier (100) having a plurality of sensors (128) disposed along its length, and at least one deflector (110) for controlling the lateral extension and the vertical position of said sensor carrier (100), wherein the lateral extension exceeds 25% of the length of sensor carrier, and the vertical height above the sea bed is less than the lateral extension of said sensor carrier.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: June 4, 2019
    Assignee: Subvision AB
    Inventors: Per Gunnarsson, Olle Kröling
  • Patent number: 10279879
    Abstract: A tow body apparatus, a method of making a modular tow body, and a method of using a tow body. The tow body comprises a nose module, a tail module, and a first payload module that may be made of plastic by three-dimensional printing. The nose module is configured to be connected to a tow cable for towing the tow body through water and comprises a nose module mating interface. The tail module comprises fins for stabilizing the tow body as the tow body is towed through water and a tail module mating interface. The first payload module comprises an interior configured to hold a payload, a first mating interface configured to be attached alternatively to the nose module mating interface or to a second payload module, and a second mating interface configured to be attached alternatively to the tail module mating interface or to the second payload module.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 7, 2019
    Assignee: The Boeing Company
    Inventors: Wayne Allen Viloria, Todd Patten, Alexander Carter Vaughn, Michael A. Carralero, Christopher S. van Harmelen
  • Patent number: 10227117
    Abstract: A system for use by a diver during an underwater dive. An autonomous underwater vehicle (one component of the system, AUV) comprises a component for detecting that the AUV has entered water, an AUV acoustic transceiver, a plurality of AUV sensors, a propulsion unit, a processor for determining dive information and diver information responsive to data from one or both of the AUV acoustic transceiver and the plurality of AUV sensors, and one or more cameras. Diver equipment carried by the diver comprises a plurality of diver sensors and a diver acoustic transceiver for receiving sensed information from the plurality of diver sensors and communicating the sensed information to the AUV, and for receiving information from the AUV acoustic transceiver.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: March 12, 2019
    Inventor: Jacob Easterling
  • Patent number: 10222500
    Abstract: A method for estimating a tilt angle ?(t) of at least one given particle motion sensor nearly collocated, in a multi-sensor streamer for seismic prospection, with a pressure sensor. The given particle motion sensor has two orthogonal sensing axes Y and Z in a plane orthogonal to a longitudinal axis of the streamer. The tilt angle is formed by the Z sensing axis and a reference vertical axis Z0.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: March 5, 2019
    Assignee: SERCEL
    Inventor: Simon Leboeuf
  • Patent number: 10202264
    Abstract: A cable winch, comprising an electric drive motor, a transmission, and a rotary indicator, where the electric drive motor is coupled to the transmission and the rotary indicator is associated with the electric drive motor and/or the transmission in such a way that the rotary indicator provides a signal for determining the rotational speed of the drive motor and/or of the transmission, with the rotary indicator being arranged between the electric drive motor and the transmission.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: February 12, 2019
    Assignee: Konecranes Global Corporation
    Inventors: Oliver Moll, Giuliano Persico, Holger Freitag
  • Patent number: 10126464
    Abstract: Techniques are disclosed relating to marine geophysical prospecting. According to some embodiments, a survey vessel may tow a streamer through a body of water. If the streamer needs to be maintained (e.g., cleaned, repaired, or serviced), a second vessel may lift the streamer out of the water for this purpose. Techniques are disclosed that are relevant to the handling of protruding members (such as streamer steering devices) on the streamer.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 13, 2018
    Assignee: PGS Geophysical AS
    Inventors: Einar Nielsen, Karl Petter Elvestad
  • Patent number: 10118681
    Abstract: A method for automatically controlling a trim position of a trimmable drive unit with respect to a transom of a marine vessel includes retrieving from a memory a stored level trim position of the drive unit, measuring an actual trim position of the drive unit, and determining with a controller whether an absolute difference between the level trim position and the actual trim position exceeds a given threshold. The method also includes determining whether at least one of a plurality of trim-to-level enable conditions indicative of an idle state of an engine powering the drive unit is true. In response to a determination that the absolute difference exceeds the given threshold and that at least one trim-to-level enable condition is true, the method includes sending a control signal with the controller to trim the drive unit to the level trim position. A system for carrying out the method is provided.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: November 6, 2018
    Assignee: BRUNSWICK CORPORATION
    Inventors: Steven J. Andrasko, Andrew J. Przybyl
  • Patent number: 10118676
    Abstract: A submarine survey platform, including: a gasbag; a gas tube; a floater; an upper longitudinal plate; a lower longitudinal plate; diaphragm plates including upper openings, lower openings, and trapezoid openings disposed between the upper openings and the lower openings; and diagonal braces. The upper longitudinal plate includes a flat plate and a flanged plate. The lower longitudinal plate is a rectangular plate. The upper longitudinal plate pass through the upper openings, and the lower longitudinal plate pass through the lower openings. The diagonal braces and longitudinal stiffeners are disposed between every two adjacent diaphragm plates. Two diaphragm plates at two ends of the flat plate are provided with a lifting lug. The diagonal braces are symmetrically disposed and include outward braces and inward braces which are crossed with each other. Cross points of the upper/lower longitudinal plate with the diaphragm plates are support points of the upper/lower longitudinal plate.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 6, 2018
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Yan Lin, Yanyun Yu, Xiaoning Jiang, Guan Guan
  • Patent number: 10029771
    Abstract: Disclosed herein is a floating recovery device for underwater equipment. The device includes a recovery body partitioned into a first compartment, a second compartment, and a third compartment by a partition wall, first and second pressure tanks installed in the first and second compartments, respectively, first and second striking parts fastened to the first and second pressure tanks, respectively, to strike the first and second pressure tanks, first and second actuators wirelessly actuating the first and second striking parts, respectively, and a buoyancy generator installed in the third compartment, and inflated by high-pressure gas introduced from the first and second pressure tanks, thus generating buoyancy. Such a configuration allows the pressure tank to be wirelessly struck for the purpose of supplying high-pressure gas to the buoyancy generator and floating the underwater equipment in the event of the loss of the underwater equipment.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 24, 2018
    Inventor: Ki Joon Kim
  • Patent number: 10024123
    Abstract: When one of at least two independently driven gripper chains (102) of a coiled tubing injector (100) begins to turn faster than another one of the injector's other independently drive gripper chains by an amount that indicates slipping of one of the independently driven gripper chains relative to tubing (109) being held between the driven gripper chains, a hydraulic timing circuit (318), which is coupled with the driven chains through hydraulic timing motors (214, 216), generates a pressure signal that causes the injector's hydraulic traction system to increase the hydraulic pressure applied by hydraulic cylinders (220) to generate a normal force applied by grippers on the chains to the tubing.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: July 17, 2018
    Assignee: National Oilwell Varco, L.P.
    Inventors: Timothy S. Steffenhagen, William B. White
  • Patent number: 9950773
    Abstract: A towed vessel suitable for containing and transporting various liquids is disclosed. The vessel further comprises various features useful in the transportation, navigation, and storage of the towable vessel, both when in use for transporting fluids and when transported in an emptied state. Such features include navigational and positioning devices and methods, power supply devices and methods, and means for filling, inflating, emptying, and deflating a non-rigid, towed vessel. Aspects of embodiments of the present invention further include features useful for purifying or preserving the purity of the fluid to be transported.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: April 24, 2018
    Inventors: Allen Szydlowski, Ian Szydlowski
  • Patent number: 9897713
    Abstract: A hydrodynamic foil system for a sensor streamer array includes towing equipment coupled to a survey vessel. The towing equipment includes at least one spreader cable extending substantially transversely to a direction of motion of the survey vessel. A plurality of laterally spaced apart sensor streamers is coupled at respective forward ends thereof to the towing equipment. A plurality of foils disposed on the spreader cable, the foils configured to provide hydrodynamic lift in a vertical direction as the at least one spreader cable is moved through the water. The foils are each rotatable about the spreader cable.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: February 20, 2018
    Assignee: Petroleum Geo-Services, Inc.
    Inventors: Erling Vågeskar, Kenneth Karlsen
  • Patent number: 9784236
    Abstract: A water mill, power generator, for use underwater, has a flexible support shaft which permits the water current to orient the turbine axis substantially parallel to the direction of flow so that the force of the water on the blades is optimized for a given turbine, without the need for slip ring style connections between the generator at the turbine and the 5 anchored base. Optionally, the design features fins or cowlings on the flexible support shaft to further improve reorientation of the turbine with the water current or flow acting as the source of power; and/or output power links or power conditioning systems at the anchored base. The generators may be selected to meet low rotation operating conditions, and the entire system may be designed for particular ocean bottom and/or current parameters applicable to the 10 deployment.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 10, 2017
    Assignee: Memorial University of Newfoundland
    Inventors: Vlastimil Masek, Andrew Cook
  • Patent number: 9733375
    Abstract: System and method for enriching a bandwidth of seismic data related to a subsurface of a body of water. The system includes streamers and sources that are towed at alternating depths during consecutive and/or adjacent line of sails or during the same line of sail.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: August 15, 2017
    Assignee: CGGVERITAS SERVICES (U.S.) INC.
    Inventor: Zhaohong Wu
  • Patent number: 9695958
    Abstract: An arrangement that brings all of the separate elements of equipment used to lay product offshore such as pipe, umbilicals and power cables and assembles them into a single device that can be installed on a vessel of opportunity is described. A base is used for mounting, integration, and installation of the separate elements onto a vessel. The base receives a movable lay chute, an apparatus for moving and stabilizing the lay chute, a movable hang off clamp and work table, a movable access platform, a product support arm and wheel, and a fixed chute.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: July 4, 2017
    Assignee: J. RAY MCDERMOTT, S.A.
    Inventor: David Lee Guymon
  • Patent number: 9671514
    Abstract: There is provided an apparatus for positioning in water of seismic equipment towed by a survey vessel. The apparatus is made of an elongated body part for receiving a towed underwater cable. The body part is provided with wings and integrated wing flaps for stably holding the apparatus in the correct water position.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: June 6, 2017
    Assignee: SEISMISK IQ BIRD APS
    Inventor: Soeren Peter Soegaard
  • Patent number: 9611012
    Abstract: An underwater towing device, including an underwater towing assembly and a fixing mechanism of the underwater towing assembly. The underwater towing assembly includes a first floating body, a second floating body, and a third floating body. The fixing mechanism includes a fairlead carrier and two supports disposed on two sides of the fairlead carrier. The first floating body, the second floating body, and the third floating body are connected together via a fixing frame. The first floating body, the second floating body, and the third floating body have streamlined and bilaterally symmetrical shapes and all are hollow to accommodate experimental equipment. The first floating body is a cylinder having a drop-shaped horizontal cross-section. The upper part of the first floating body is provided with a buoyancy reserve tank having an elliptic horizontal cross-section.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 4, 2017
    Assignees: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Yan Lin, Xiaoning Jiang, Yanyun Yu, Ming Chen, Zhikang Zhang, Chao Ye
  • Patent number: 9592919
    Abstract: One example of an aircraft fuel line assembly clamp member includes a c-shaped outer shell and a plurality of spokes. The c-shaped outer shell is sized to be positioned within an outer tube of an aircraft fuel line assembly. The plurality of spokes is arranged on an inner surface of the outer shell. The plurality of spokes protrudes from the inner surface towards a center of the outer shell to define a shape to receive an inner tube of the aircraft fuel line assembly. The plurality of spokes is also spaced apart on the inner surface.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: March 14, 2017
    Assignee: BELL HELICOPTER TEXTRON INC.
    Inventor: Joseph Leachman
  • Patent number: 9581714
    Abstract: A control system for use in a marine seismic survey is provided. The system may include one or more processors configured to receive a desired position for one or more seismic streamers during the marine seismic survey. The one or more processors may be further configured to determine a current position for the one or more seismic streamers and to adjust a position of a steering device on each streamer, based upon, at least in part, a comparison between the current position of the one or more seismic streamers and the desired position of the one or more seismic streamers.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 28, 2017
    Assignee: WesternGeco L.L.C.
    Inventors: Nicolas Barral, Halvor S. Grønaas, Antonin Bertin
  • Patent number: 9540076
    Abstract: A launch and recovery management system with a pass through tether for an offshore object. The system turns a free flying remotely operated vehicle system into a tether management controlled system by separately supporting the tether management system frame with an independent load line so the tether or umbilical only passes through the frame going direct to a remotely operated vehicle. A traction system coupled with a constant tension system on the tether management system topside maintains the tether or umbilical directly below the launch and recovery system down to the desired working depth thereby avoiding any slack or impacts of current forces.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: January 10, 2017
    Assignee: WT INDUSTRIES, LLC
    Inventor: Douglas Patrick Trail
  • Patent number: 9494703
    Abstract: A marine geophysical deflector for towing seismic arrays includes a float main body with one or more deflector wings extending downwards into the sea, and one or more slender top float elements arranged generally in a longitudinal direction on top of the main body. The number of the top float elements may be two or more. There may be arranged two or more distance floats below the float main body and an upper horizontal plate at the top of the one or more deflector wings.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: November 15, 2016
    Assignee: ULMATEC BARO AS
    Inventors: Birger Enerhaug, Karl-Johan Mork
  • Patent number: 9481430
    Abstract: A lightweight transport vessel transports compressed natural gas underwater without needing to liquefy the gas for transport.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: November 1, 2016
    Assignee: Elwha, LLC
    Inventors: Jesse R. Cheatham, III, Tom Driscoll, Alexander Galt Hyde, Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Nathan P. Myhrvold, Tony S. Pan, Robert C. Petroski, David R. Smith, Clarence T. Tegreene, Nicholas W. Touran, Yaroslav A. Urzhumov, Charles Whitmer, Lowell L. Wood, Jr., Victoria Y. H. Wood
  • Patent number: 9389328
    Abstract: A seismic spread is constructed having an arrangement of towed components to be neutrally buoyant in water when towed in a seismic survey. The towed components at least include streamers and paravanes. Immersed weight and drag of the towed components is determined, and drag forces versus buoyancy required to neutrally buoy the towed components at at least one tow speed in the water is calculated based on the determined weight and drag of the towed components. Floatation is configured for the seismic spread based on the calculated drag forces versus buoyancy; and the arrangement of the towed components in the seismic spread is constructed with the configured floatation.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: July 12, 2016
    Assignee: ION Geophysical Corporation
    Inventors: Curt Schneider, Timothy A. Dudley
  • Patent number: 9371114
    Abstract: A towed vessel suitable for containing and transporting various liquids is disclosed. The vessel further comprises various features useful in the transportation, navigation, and storage of the towable vessel, both when in use for transporting fluids and when transported in an emptied state. Such features include navigational and positioning devices and methods, power supply devices and methods, and means for filling, inflating, emptying, and deflating a non-rigid, towed vessel. Aspects of embodiments of the present invention further include features useful for purifying or preserving the purity of the fluid to be transported.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: June 21, 2016
    Inventors: Allen Szydlowski, Ian Szydlowski
  • Patent number: 9223002
    Abstract: A system and a method are provided for determining the position of an underwater vehicle while the vehicle is operating underwater. A buoyant float stays on or near the surface of the water and is attached to the vehicle by thin tether that can include insulated wires. The vehicle moves under the water and pulls the float behind it. The float can receive a localization signal, such as a signal indicating its GPS position, and so can determine its position precisely. The position can be transmitted to the underwater vehicle over the wires located in the tether. The underwater vehicle can use sensors and/or calculations to determine the positional offset of the vehicle from the float buoy and generates its true position based on the known position of the float and the positional offset. The float can be constructed with attributes that will allow the float it operate with a greater tether length, and in turn allow the underwater vehicle to operate at greater depths.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: December 29, 2015
    Assignee: Ocean Server Technology, Inc.
    Inventor: Jonathan C. Crowell
  • Patent number: 9211940
    Abstract: Deflectors configured to be attached to cables towed behind a vessel for performing a marine survey and associated methods are provided. A deflector has a body including a wing portion and a knuckle portion. The wing portion has substantially flat wings extending away from a position where the body is attached to the cable. The knuckle portion is configured to attach the wing portion to the cable so that the wing portion remains able to rotate about three rectangular axes while being towed underwater.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 15, 2015
    Assignee: CGG SERVICES SA
    Inventor: Hervé Richer De Forges
  • Patent number: 8997675
    Abstract: A method and a marine towing system for towing streamers or sources. The towing system includes a connecting line; a first paravane connected to the connecting line, wherein the connecting line is configured to connect the first paravane to a vessel; a spur line connected to the first paravane and configured to provide a tension to maintain streamers apart from each other; and a second paravane connected to the connecting line, between the first paravane and the vessel. The second paravane is configured to increase an angle (?4) between the connecting line and the spur line.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: April 7, 2015
    Assignee: CGGVeritas Services SA
    Inventors: Raphael MacQuin, Helene Tonchia, Thierry Grousset
  • Patent number: 9001623
    Abstract: A tow body and associated method have an acoustic projector that can be rotated about a vertical plane while the tow body is being towed through the water. In some embodiments, the tow body and method allow the tow body to be coupled to a tow cable while the tow cable is being towed through the water and under tension.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: April 7, 2015
    Assignee: Raytheon Company
    Inventors: David A. Sharp, Joseph Ricci, Patrick M. Brogan, Gregory S. Rosche, Michael A. Gonzalez, James R. Sturges, Arthur J. Pedro
  • Patent number: 8960117
    Abstract: Techniques are disclosed relating to using a remote operated vehicle (ROV) to facilitate cleaning of a submerged geophysical equipment (e.g., a streamer) being towed behind a tow vessel. The ROV may, in one embodiment, attach a streamer cleaning unit (SCU) to the streamer, where the SCU is configured to clean the streamer. In another embodiment, the ROV may facilitate cleaning by cleaning the streamer itself using a cleaning attachment coupled to the ROV.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: February 24, 2015
    Assignee: PGS Geophysical AS
    Inventors: Einar Nielsen, Kenneth Karlsen, Rune Tønnessen, Erling Vageskar, Jan Terje Rodseth, Arnt M. Bjorno
  • Publication number: 20150020726
    Abstract: A lead-in cable used to tow a streamer behind a vessel includes a replaceable portion removably connected between a portion of the lead-in cable attached to the vessel and the streamer. Alternatively a lead-in additional cable is inserted between a lead-in cable and a towed streamer. The replaceable portion or the lead-in additional cable covers a portion most likely to be damaged between the streamer and the towing vessel.
    Type: Application
    Filed: March 19, 2014
    Publication date: January 22, 2015
    Applicant: CGG SERVICES SA
    Inventors: Frank MCLEMORE, Pierre LE ROUX, Philippe DUMAZET
  • Patent number: 8902696
    Abstract: A technique for seismic surveying is presented in which a towed array, marine seismic spread, includes a plurality of streamers and a deflector system. The deflector system laterally spreads the seismic streamers, wherein at least one streamer in the spread is deflected using more than one deflector attached to the tow cable or streamer, and where the deflectors are not connected to a float on the sea surface. Other aspects of the technique include methods for towing such a spread and for controlling such a spread. Still other aspects include computing resources which may be used to perform the methods.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: December 2, 2014
    Assignee: WesternGeco L.L.C.
    Inventor: Rune Toennessen
  • Patent number: 8891332
    Abstract: A marine acoustic source system for generating an acoustic wave in a body of water. The marine acoustic source system includes a first marine acoustic source array having first and second external source sub-arrays, each sub-array including one or more individual source elements; a first actuator device connected to the first external source sub-array; and a first rope connecting the first actuator device to a first lead-in that is configured to connect to a head of a streamer. The first actuator device is configured to control a length of the first rope in order to control a position of the first source array relative to the streamer.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: November 18, 2014
    Assignee: CGGVeritas Services SA
    Inventors: Hélène Tonchia, Frederic Simonnot
  • Patent number: 8891331
    Abstract: Method and marine acoustic source array for generating an acoustic wave in a body of water. The marine acoustic source array includes first and second external source sub-arrays, each sub-array including one or more individual source elements; a first actuator device connected to the first external source sub-array; and a second actuator device connected to the second external source sub-array. The first actuator device has a corresponding cable configured to connect to a first lead-in, and the second actuator device has a corresponding cable configured to connect to a second lead-in such that a position of the source array as a whole is controllable along a line substantially perpendicular to a path of the source array.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: November 18, 2014
    Assignee: CGGveritas Services SA
    Inventor: Glen Barker
  • Publication number: 20140326170
    Abstract: A towing device, intended to be fitted to the deck of a ship, comprises a winch, a cable and a fairlead, the cable running through the fairlead under the action of the winch. The fairlead comprises at least a first and a second sector, the sectors allowing the cable to be guided in a groove made in each of the sectors, a first articulation with a degree of freedom to rotate about an axis, the articulation connecting the two sectors, the axis being substantially perpendicular to a direction in which the cable runs substantially through the fairlead at the articulation, and limiting means that limit the angular travel of the articulation. The sectors and the limiting means are dimensioned so as to prevent the cable from exceeding a lower limit of radius of curvature.
    Type: Application
    Filed: November 8, 2012
    Publication date: November 6, 2014
    Inventor: Christophe Borel
  • Patent number: 8813669
    Abstract: A towable antenna system is deployable and retrievable from and tetherable to an underwater vehicle while the underwater vehicle is submerged under water. An underwater vehicle having a towable antenna system is capable of communicating with one or more remote communication systems, the towable antenna system acting as an intermediary for communications between a submerged underwater vehicle and the one or more remote communication systems.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: August 26, 2014
    Assignee: Rolls-Royce Marine North America, Inc.
    Inventors: Roger E. Race, Jacob C. Piskura, David S. Sanford