Line Type (e.g., Rope, Chain, Hawser, Cable, Etc.) Patents (Class 114/230.2)
  • Patent number: 10370905
    Abstract: A flexible elongate element for installation in a body of water to extend between a seabed connection device and a unit arranged at the opposite end of the flexible elongate element. At least one lateral displacement device is connected to a portion of the flexible elongate element and configured to displace at least a portion of the flexible elongate element a lateral distance away from a first axis extending between the seabed connection device and the unit, the at least one lateral displacement device including a spring member. The flexible elongate element may be a flexible riser, umbilical, hose, or cable.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: August 6, 2019
    Assignee: CAN SYSTEMS AS
    Inventors: Arild Bech, Eirik Storvoll
  • Patent number: 10227109
    Abstract: A watercraft securement device including a boat attachment line configured for connection to a watercraft and a dock attachment line configured for connection to an anchoring structure. A tensioning apparatus is connected to the boat attachment line and the dock attachment line. The tensioning apparatus is configured to adjust the length of one of the boat attachment line or the dock attachment line. The tensioning apparatus further includes a pulley for engaging the adjustable length and a ratcheting mechanism. The ratcheting mechanism operates to permit rotation of the pulley in only one direction when engaged, and to permit free rotation of the pulley when released. The ratcheting mechanism maintains tension as the adjustable length is pulled through the pulley.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: March 12, 2019
    Inventor: James Mullikin
  • Patent number: 10145659
    Abstract: A marine barrier has a line of buoyant column modules, and an impact net attached to and extending between the column modules. First and second lines of buoyant flotation modules are respectively disposed parallel to and on opposing sides of the line of column modules, and are connected to the column modules by legs such that each of the flotation modules is retained between two adjacent ones of the center column modules. When the barrier is floating in a body of water and a moving vessel impacts the impact net, the impact net deflects to transfer a force of the impact to one or more of the column modules and flotation modules, which in turn engage the water to transfer the force of the impact to the water, to arrest the motion of the vessel.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: December 4, 2018
    Assignee: HALO MARITIME DEFENSE SYSTEMS, INC.
    Inventors: Michael J. Osienski, Judson DeCew, Sean Gribbin, Tom Sherwin
  • Patent number: 10125845
    Abstract: A cord lock includes a first member having a first passage and a second passage for a cord; a second member combined with the first member to be capable of moving to rise and fall as a support point on the second passage side, and including a third passage positioned between the first passage and the second passage on a free end side of the rising and falling movement, and passing the cord; and an urging device urging the second member in a standing direction. The support point is formed by an engaging portion formed in one of the first member and the second member, and an engaged portion formed in the other, and engaged with the engaging portion, and the cord pulled out of the second passage is positioned on a free end side of the second member more than the support point.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: November 13, 2018
    Assignee: NIFCO INC.
    Inventors: Taiyo Ishii, Yohei Shimizu
  • Patent number: 10040515
    Abstract: A support buoy for supporting subsea equipment, the buoy comprising: a hull; a generator unit contained within the hull; a utilities array contained within the hull; and an umbilical, wherein the umbilical is adapted to provide services from the generator unit and the utilities array to the subsea equipment.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: August 7, 2018
    Assignee: Aquadownunder Pty Ltd
    Inventor: Peter David Kingston Mellor
  • Patent number: 9969236
    Abstract: A shock absorber for a vehicle having a damper and a first and second springs mounted coaxially around the damper and a preload adjuster for partially compressing at least one of the springs independently of the compression stroke. In one embodiment the preload adjuster is remotely controllable. In another embodiment the shock absorber includes an additional mechanism for preloading at least one of the springs.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: May 15, 2018
    Assignee: Fox Factory, Inc.
    Inventor: Christopher Paul Cox
  • Patent number: 9896164
    Abstract: A mooring method includes the steps of: transporting a mooring member having a mooring cable which can be connected to a float at one end and an accommodation member installed at the other end of the mooring cable and has an accommodation space therein to a mooring position of the float; accommodating a first heavy weight in at least a part of the accommodation space of the accommodation member at the mooring position; connecting the one end of the mooring cable to the float at the mooring position after the accommodation step; and accommodating a second heavy weight in the accommodation space of the accommodation member by adding the second heavy weight to the first heavy weight or exchanging at least part of the first heavy weight with the second heavy weight at the mooring position after the connection step.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: February 20, 2018
    Assignee: NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.
    Inventors: Tadashi Torii, Kohichi Fujiwara, Hiroshi Ookubo, Chikara Iwamoto, Atsushi Yamashita
  • Patent number: 9714727
    Abstract: A method and apparatus are disclosed for supporting a flexible pipe. The method includes the steps of responsive to a change in at least one condition experienced by a flexible pipe, varying an amount of support provided at at least one location on the flexible pipe.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: July 25, 2017
    Assignee: GE Oil & Gas UK Limited
    Inventors: Zhimin Tan, Michael David Powell, Yanqiu Zhang, Thomas Kolanski
  • Patent number: 9708864
    Abstract: A riser assembly for transporting fluids from a sub-sea location is disclosed. The riser assembly includes a riser having at least one segment of flexible pipe and a plurality of buoyancy compensating elements connected to the riser and connected together in an in-line configuration to form a mid-line buoyancy section. The riser assembly also includes at least one buoyancy aid connected to the riser at a position above and spaced apart from the mid-line buoyancy section. The at least one buoyancy aid forms a first distributed buoyancy section and is sufficiently buoyant to maintain a tension load on the riser between the first distributed buoyancy section and the mid-line line buoyancy section. The riser assembly further includes at least one further buoyancy compensating element connected to the riser at a position above and spaced apart from the first distributed buoyancy section to form a second distributed buoyancy section.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: July 18, 2017
    Assignee: GE Oil & Gas UK Limited
    Inventors: Zhimin Tan, Yucheng Hou, Yuan Tian, Yanqiu Zhang, Fabio de Souza Pires, George Karabelas
  • Patent number: 9701369
    Abstract: The invention relates to an offshore top site system comprising a subsea facility, a floating unit arranged above the subsea facility and at least one transportation line extending between the subsea facility and the floating unit. The transportation line comprises a catenary riser section and comprises an uppermost end and a top site section with a lowermost end. The catenary riser section and the top site section are in flow connection with each other. The transportation line further comprises a connecting portion preferably arranged within a vertical floating unit zone and between the top site section and the uppermost end of the riser section. The connection portion is pivotally connected to the floating unit. The connection portion is preferably pivotally connected to the floating unit such that at least a major part of pulling force from the riser section is alleviated by the connection to the floating unit.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: July 11, 2017
    Assignee: NATIONAL OILWELL VARCO DENMARK I/S
    Inventor: Morten Storgaard Nielson
  • Patent number: 9506593
    Abstract: In various embodiments, fluid conduits such as high pressure hoses deployed in-between two sea-fairing vessels may be released during an emergency by using a rapid release emergency disconnect system as described herein, where the rapid release emergency disconnect system may engage with a hanger such as an industry standard frac hanger and be used in-line with fluid conduits such as high-pressure lines. Various skid embodiments are described which can be configured to interface with one or more of the described rapid release emergency disconnect systems.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: November 29, 2016
    Assignee: OCEANEERING INTERNATIONAL, INC.
    Inventors: Gary R. Spexarth, Richard Allan Myers, Kyle William Gebhardt, Jordan Ashley Carter
  • Patent number: 9441707
    Abstract: Some embodiments provide release apparatuses comprising: a body comprising a first mating section and a second mating section connected to first and second tethers; and a plurality of movable locking shoes secured with the first mating section and movable between a first position configured to lock the first mating section and the second mating section together and a second position configured to allow the first mating section and the second mating section to disconnect; wherein each of the plurality of locking shoes comprises a locking surface configured to contact an engagement surface of the second mating section and maintain a position of the first mating section with the second mating section when the plurality of locking shoes are in the first position, and wherein the locking surface of each of the plurality of locking shoes is formed at a contact angle between about 18 degrees and 24 degrees.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 13, 2016
    Assignee: INTEROCEAN SYSTEMS LLC
    Inventor: Michael D. Pearlman
  • Patent number: 9032892
    Abstract: A mooring system, and connector assembly, which in a preferred embodiment is a vessel mooring and fluid transfer system. The connector assembly has a first portion (2A) configured to be coupled to one or more mooring lines (1), and a second portion (2B) configured to be coupled to a vessel. The first and second portions are rotatable with respect to one another to permit a vessel coupling on the second portion to swivel about the mooring coupling on the first portion. In a preferred embodiment, the connector assembly comprises a guide (2E) for a conduit, which may be a fluid transfer conduit such as flexible riser (6). The invention also provides methods of use of the mooring systems described.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: May 19, 2015
    Assignee: AXIS ENERGY PRODUCTS LTD.
    Inventor: Robin Stuart Colquhoun
  • Publication number: 20150115613
    Abstract: A flowing-water driveable turbine assembly (104) for location in river or sea areas with unidirectional and bidirectional water flows. The turbine assembly comprises a turbine support (106) with positive buoyancy in water. The turbine support (106) is arranged to be anchored by an anchoring system (108) to a water bed. The turbine assembly comprises at least one turbine (110). The positive buoyancy of the turbine assembly in water has an upward force to constrain the turbine support 106 and the at least one turbine (110) to a position of floating equilibrium against a downward force of the anchoring system (108). The turbine assembly may have variable buoyancy, a duct around each turbine for directing water through the turbine to generate power from water flow, and a winch or winches for submerging the turbine assembly or parts thereof.
    Type: Application
    Filed: May 14, 2012
    Publication date: April 30, 2015
    Applicant: SUSTAINABLE MARINE ENERGY LIMITED
    Inventor: Jason Hayman
  • Patent number: 9010265
    Abstract: A cover for a mooring line having a terminal eyelet, the cover having a sheath, with a pair of hook and loop strips positioned on opposite surfaces of the sheath. The cover is a single piece configured to enclose both a terminal eyelet and linear line section of a mooring line and also has a strap attached to the sheath proximate the linear line section to retain the sheath in position on the linear line section. A method for using the cover to protect mooring lines is also provided.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: April 21, 2015
    Assignee: Fjord, Inc
    Inventor: Edward Ratigan
  • Publication number: 20150047544
    Abstract: A mooring system for a marine vessel utilizing an extension system. The mooring system comprises at least one mooring line having a first line section and a second line section. An extension device is associated with the at least one mooring line. The extension device has a first component and a second component. The first and second component each has a shear pin hole. A shear pin is positioned within the shear pin holes thereby connecting the first component and the second component. The mooring system also comprises an extension line having a first end connected to the first component and a second end connected to the second component.
    Type: Application
    Filed: April 2, 2013
    Publication date: February 19, 2015
    Inventors: Sangsoo Ryu, Craig B. Martin
  • Patent number: 8950348
    Abstract: A split ring vessel mooring arrangement having floats thereon which may be installed on a post or piling over the top thereof or, in the case of the top being covered by a deck or other structure making access thereto impossible may be pivotally opened and wrapped around the post or piling and then re-secured together.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: February 10, 2015
    Inventor: Lance Neibauer
  • Patent number: 8950350
    Abstract: A fabric shielding tube protects an elastic end portion of a stretchable segment of a mooring rode from abrasion, water, and marine life, without inhibiting extension of the stretchable segment. The ends of the tube are attached to the rode at the ends of the elastic end portion, with the tube extending beyond the elastic portion and folding back on itself in a rolling wall configuration. The tube thereby adapts to extension of the rode by partially unrolling the rolling wall. At its distal end, the tube is attached only to an outer braid of the rode by a means that does not inhibit extension of the braid or of an elastomeric core within the braid. The distal end attachment can be by sewing, or by interweaving of a strap such as a cable tie through the shield and the braid. The fabric shield can include nylon.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: February 10, 2015
    Inventor: David A Merrill
  • Publication number: 20150017849
    Abstract: A system and method for offshore loading of large cargo vessels, or motherships. The system includes a plurality of mooring stations, which may be mooring buoys, positioned in an offshore mooring field proximal an onshore cargo loading facility. A mothership is positioned within the mooring field and moored via bow and stern lines to two or more different mooring stations. Environmental data, including wind, wave, and current data, as well data regarding the physical characteristics of the mothership and movement (roll/pitch/heave) of the mothership are collected by remote transmitting and sensing devices. This data is processed by numerical analysis in a digital processor, namely a computer, to determine optimum mooring line length and tension, and mooring station locations, in order to minimize mother ship movement and create an optimum “lee” loading area adjacent the mothership. Cargo is transferred to the mothership by a trans-shipper moored to the mothership.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 15, 2015
    Inventors: Erick B. Knezek, Matthew A. Marcy, William Stewart
  • Publication number: 20140366793
    Abstract: A system adapted to position a floating object having a slide assembly with a contact surface, the floating object selectively engaging the contact surface, a track operatively connected to the slide assembly, and a locking mechanism secured to the slide assembly, the locking mechanism having a plug at one end.
    Type: Application
    Filed: June 15, 2013
    Publication date: December 18, 2014
    Inventor: Ken Mahlich
  • Publication number: 20140352293
    Abstract: The present invention relates to a tether for connecting a moving device submerged in liquid to a support structure, e.g. a submersible power plant comprising a stream-driven vehicle provided with at least one turbine for generation of electrical energy. The tether extends in a main direction, and at least a tether portion of the tether comprises a tensile force bearing portion extending in the main direction of the tether, wherein the tether portion is arranged to strive to self-align in relation to a relative flow direction of the liquid during use.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 4, 2014
    Inventors: Arne Quappen, Olof Marzelius
  • Patent number: 8869524
    Abstract: Apparatus for connecting a power cable to a marine vessel which is subject to pitch, heave, roll and yaw motion includes a ball and socket device for decreasing the twisting and bending of the power cable. The socket is attached to the vessel and the ball can rotate freely Within the socket but its up down motion is restricted. The power cable's outer protective sheath is attached to the ball while its conductors pass through the ball and are connected to an internal connector. A flexible cable (wire) is connected between the internal connector and electrical equipment internal to the marine vessel.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: October 28, 2014
    Assignee: Ocean Power Technologies, Inc
    Inventors: David B. Stewart, William B. Powers
  • Patent number: 8800462
    Abstract: A traction method for an operating line, in particular a mooring line, of a floating production unit includes the steps of: attaching an end chain portion of the operating line to a socket of a main cable running through a sheave at a work station; reeling in the main cable, using a winch, to bring the socket of the main cable up to the sheave; locking the operating line with a chain stopper; slackening the main cable and moving the sheave closer to the chain stopper to reduce pull on the main cable; reeling in the main cable to run the socket of the main cable through the sheave; once the socket of the main cable has run through the sheave, releasing the operating line from the chain stopper, and reeling in, by means of the winch, the main cable and the operating line connected to it, to set the operating line to a given tension.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: August 12, 2014
    Assignee: Saipem S.p.A.
    Inventors: Alessandro Fenini, Gianfranco Gamba
  • Patent number: 8763550
    Abstract: A plurality of technologies for aiding line handling are disclosed. The technologies enable a marine vessel occupant to use a line, which has a fixed end secured to a dock and a free end extending over a body of water, for docking.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: July 1, 2014
    Inventors: Gerald Matlin, Vincent Grasso
  • Patent number: 8757077
    Abstract: The disclosure provides a method and system of coupling end-to-end at least two existing mooring lines (12A, 12B) that are already deployed from the floating platform (56) to the seabed or other connecting structure to create a single shared line from the two lines. The shared lines then form a single looped line with both ends deployed to the subsea connections. The shared length provides enough payout of line to loosen one line sufficiently, while the other line becomes correspondingly tighter using the catenary length of the tight line. In part, the line can be loosened while the other is tightened because the lines are generally in the same overall direction to the seabed, such as in a same quadrant around the platform. Thus, the lines share their available lengths to provide the necessary payout for the repairs.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: June 24, 2014
    Assignee: Technip France
    Inventors: David N. Edelson, Jim Wang, Andrew Buck, Peter Sharp, Timothy Arthur Hale
  • Patent number: 8733265
    Abstract: An offshore structure having a hull, an upper vertical wall, an upper inwardly-tapered wall disposed below the upper vertical wall, a lower outwardly-tapered wall disposed below the upper sloped wall, and a lower vertical wall disposed below the lower sloped wall. The upper and lower sloped walls produce significant heave damping in response to heavy wave action. A heavy slurry of hematite and water ballast is added to the lower and outermost portions of the hull to lower the center of gravity below the center of buoyancy. The offshore structure provides one or more movable hawser connections that allow a tanker vessel to moor directly to the offshore structure during offloading rather than mooring to a separate buoy at some distance from the offshore storage structure. The movable hawser connection includes an arcuate rail with a movable trolley that provides a hawser connection point that allows vessel weathervaning.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 27, 2014
    Assignee: SSP Technologies, Inc.
    Inventor: Nicolaas J. Vandenworm
  • Publication number: 20140069312
    Abstract: Disclosed is a boat docking assistance device including a cable locking device/carriage assembly which slides along a cable/rope attached either to a boat or dock. According to one exemplary embodiment, the carriage is pulled from the helm area of the boat towards the stern as the boat is docking with a resistance provided by a locking cam arrangement. The carriage is attached to a dock pile using a hoop type arrangement fastened to the sliding carriage by a rope, which is placed on the pile by a boat operator as the boat approaches the dock associated with the pile.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Inventors: Joseph V. Pease, Jr., Joseph V. Pease, III, Michael C. Mahar
  • Publication number: 20140053765
    Abstract: Apparatus and system are disclosed for anchoring the kayak to the bottom of a body of shallow water. The apparatus includes a receiver tube attached to the kayak into which a guide sleeve and stake are held vertically. A tether line is attached to the stake at one end and to the kayak at the other locking it in the up position for paddling. The stake drops to anchor the kayak by releasing the tether line using an attachment device at a contact point proximate the seat. Pulling the tether line and re-attaching the attachment device retrieves the anchor and returns it to the locked up position for resuming paddling.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 27, 2014
    Inventor: John Allen Phillips, JR.
  • Patent number: 8651909
    Abstract: A segmented flotation device available in a plurality of colors, sizes, and configurations is disclosed. Each flotation device includes one or more buoyant members strung together with an elastic band. A recessed cup at each end of the device stores a coupler which is in turn secured to the elastic band. The coupler is configured with couplers for interconnecting flotation devices to create a variety of shapes and structures such as grids, float mats, and long float lines. A cord lock may be provided on the elastic band for adjusting the preloaded tension. A plurality of flotation devices can be packaged with other accessories connectable to the devices for creating a seat, mat, island or other structure, for holding beverages, or for providing awning structure.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: February 18, 2014
    Inventor: Patrick J. Romzek
  • Publication number: 20140045394
    Abstract: A vessel has a hull, a contact area at the hull near keel level for attaching to a structure, a lifting device and a lifting cable attached thereto and extending along a heave compensating member. The lifting cable extends along a substantially vertical lifting trajectory to a connect position below keel level. The heave compensating member includes a guide element for guiding the lifting cable and which is connected to a displacement device. The heave compensating member includes a compensator arm with a pivot end pivotally connected to a pivot point on the vessel at a predetermined transverse distance from the lifting trajectory, the cable guide element being attached to a free end of the compensator arm at or near the lifting trajectory, guiding the lifting cable in the direction of the pivot point, the arm being at or near the free end connected to the displacement device.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicant: Single Buoy Moorings Inc.
    Inventors: Wilhelmus Coenradus Johannes Jozephus WOLDRING, Peter Alan LUNDE
  • Publication number: 20130333606
    Abstract: Exemplary embodiments of a manufacture of an aquatic stabilizing locus inhibiting roving, comprising: a buoyant main body comprising; a top, sky-side, surface, a bottom, water-side, surface, at least one attachment loop secured to at least one attachment loop base; at least one water-side attachment loop, secured to at least one water-side attachment loop base; and at least one stabilizing line, wherein each end of the stabilizing line forms into fixed loops enabled to concatenate with at least one concatenation element, and wherein the stabilizing line is concatenated to the water-side attachment loop. Exemplary embodiments of means for inhibiting roving, of at least one object floating in an aquatic medium, by means of a stabilizing locus comprising: a means for providing buoyancy to the locus; a means for concatenating at least one device to the locus; a means for concatenating the locus to an object that inhibits locus aquatic roving.
    Type: Application
    Filed: October 4, 2012
    Publication date: December 19, 2013
    Inventors: Cheryl Meares Dykstra, Nancy Meares Kelly
  • Patent number: 8590472
    Abstract: This installation comprises a transport conduit which is at least partially submerged in a body of water, a device for conveying fluid between the vessel and the conduit, and a floating platform for securing the vessel. The platform comprises a carrier structure which is partially submerged in the body of water. The carrier structure comprises an open-work trellis which delimits internal spaces which are for circulation of water and which open in the body of water. The floating platform further comprises flexible lines for anchoring the carrier structure to the bottom of the body of water. The ratio of the volume of the internal spaces to the total of the volume of the open-work trellis and the volume of the internal spaces is greater than 0.9.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: November 26, 2013
    Assignee: Technip France
    Inventors: Jean-Pascal Biaggi, Virginie Lehning
  • Patent number: 8568063
    Abstract: A mooring system for a floating vessel such as a drilling unit is provided. The floating vessel has a platform for providing drilling, production or other operations in a marine environment, and a tower for providing ballast and stability below a water line in the marine environment. The mooring system generally includes a plurality of anchors disposed radially around the tower along a seabed, and a plurality of mooring lines. Each mooring line has a first end operatively connected to the tower, and a second end operatively connected to a respective anchor. Each mooring line further comprises at least two substantially rigid links joined together using linkages. Each joint is at least five meters in length. The mooring system is capable of maintaining station-keeping for the vessel greater than about 100 Mega-Newtons such that operations may be conducted when the marine environment is substantially iced over.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: October 29, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Carl R. Brinkmann, Theodore Kokkinis, Adel H. Younan, Patricia Bruen
  • Patent number: 8567334
    Abstract: A boat docking device, for use with a boat, a dock adjacent to a body of water, and dock lines each having a fixed end secured to the dock, and a free end. The docking device has a mast that is secured to the dock, and an arm that is secured to the mast and is selectively pivotable between an extended position substantially perpendicular to the dock, and a retracted position substantially parallel to the dock. The arm has a lower surface having a plurality of clips for holding the dock lines as they extend substantially parallel to the arm along the lower surface with the free end of dock lines available at the distal end so when the arm is extended perpendicular to the dock and over the body of water, the boater can grab the free end before the boat reaches the dock.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: October 29, 2013
    Inventors: Gerald Matlin, Vincent Grasso
  • Patent number: 8544403
    Abstract: The present invention relates to a unit adapted to float in a body of water with a sea bed. The unit comprises a station-keeping system comprising a mooring line, the mooring line comprising a connection portion and a tail portion and when the unit is floating. The body of water reaches a still water line of the unit and the connection portion extends from the sea bed to a mooring line handling arrangement of the unit. The arrangement is adapted to actively alter the length of the connection portion. When the mooring line is in a permanent mooring position, at least a portion of the tail portion is located in the body of water.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: October 1, 2013
    Assignee: GVA Consultants AB
    Inventor: Daniel Åstrand
  • Publication number: 20130220201
    Abstract: A hawser system between a tension leg platform (TLP) and another vessel employs two lines, oriented in a V-shape, to restrict the vertical motion of a hawser near the bow of the other vessel which may be a semi-submersible tender assisted drilling vessel (TAD). Drilling operations may be performed from the TLP while the semi-submersible provides the supporting services for the drilling operation, e.g. drilling fluid and drill pipe storage. The restricted vertical motion of the hawsers significantly reduces the possibility of the hawsers contacting each other. A hawser system according to the invention couples the semi-submersible TAD vessel to the TLP and may be implemented without passing the hawsers through sheaves.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 29, 2013
    Applicant: SEAHORSE EQUIPMENT CORP.
    Inventor: Seahorse Equipment Corp.
  • Patent number: 8495964
    Abstract: An elastic anchor rope has an elastomeric core over most of its length. The core stretches during mooring to permit discharge of persons and items such as on a beach with subsequent retraction of the craft to an offshore location. A bow line permits retraction of the craft to the beach for loading purposes. Tensile loads are transferred from the elastomeric core to an intermediate cord and from the cord to end portions of the rope that do not have the core.
    Type: Grant
    Filed: October 15, 2011
    Date of Patent: July 30, 2013
    Inventor: Kubli N Ronald
  • Patent number: 8413599
    Abstract: A tethering device for a boat may be mounted to a dock so that the top surface of the tethering device is flush with the top of the dock. Inside the housing is a retraction reel storing a sufficient length of line to provide tethering of the boat to the dock while retracting excess line back for out-of-sight storage but leaving the pre-selected length of line extending from the tethering device. The housing also has a line locking mechanism to hold the line at the pre-selected length so as to prevent the boat from drifting away taking line with it.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: April 9, 2013
    Inventor: Rock Underwood
  • Publication number: 20130025523
    Abstract: Marine or underwater vehicle designed to be secured to a recovery cable includes contactless elements (6) for detecting the recovery cable (2), the element being capable of guiding the vehicle (1) towards the cable (2) and elements (7) situated at one end (3b) of the vehicle (1) for coupling the cable (2).
    Type: Application
    Filed: July 25, 2012
    Publication date: January 31, 2013
    Applicant: ECA ROBOTICS
    Inventors: Eric FREJAVILLE, Gerard MOTHIER
  • Publication number: 20120291685
    Abstract: An offshore structure having a vertically symmetric hull, an upper vertical wall, an upper inwardly-tapered wall disposed below the upper vertical wall, a lower outwardly-tapered wall disposed below the upper sloped wall, and a lower vertical wall disposed below the lower sloped wall. The upper and lower sloped walls produce significant heave damping in response to heavy wave action. A heavy slurry of hematite and water ballast is added to the lower and outermost portions of the hull to lower the center of gravity below the center of buoyancy. The offshore structure provides one or more movable hawser connections that allow a tanker vessel to moor directly to the offshore structure during offloading rather than mooring to a separate buoy at some distance from the offshore storage structure. The movable hawser connection includes an arcuate rail with a movable trolley that provides a hawser connection point that allows vessel weathervaning.
    Type: Application
    Filed: August 7, 2012
    Publication date: November 22, 2012
    Inventor: NICOLAAS J. VANDENWORM
  • Publication number: 20120285358
    Abstract: A mooring system may comprise a station keeping apparatus having a turntable rotatably mounted thereon. The station keeping apparatus is operable to movably couple to a first vessel and to a second vessel in a side-by-side configuration. The turntable is operable to freely rotate both the first and the second vessel about the station keeping apparatus. The station keeping apparatus is securable to the second vessel using a head mooring line having a length which is adjustable for aligning a heading of both the first and the second vessel with a prevailing weather direction. Further, the mooring system may comprise a rigid yoke or a soft yoke movably coupling the turntable to the first vessel for angular adjustment between the station keeping apparatus and a longitudinal center line of the first vessel.
    Type: Application
    Filed: October 9, 2009
    Publication date: November 15, 2012
    Applicant: KEPPEL OFFSHORE & MARINE TECHNOLOGY CENTRE PTE LTD
    Inventors: Zong Yao, Wen Sin Chong, Hee Yan Yip, Kok Seng Foo
  • Publication number: 20120266801
    Abstract: A mooring system for a floating vessel such as a drilling unit is provided. The floating vessel has a platform for providing drilling, production or other operations in a marine environment, and a tower for providing ballast and stability below a water line in the marine environment. The mooring system generally includes a plurality of anchors disposed radially around the tower along a seabed, and a plurality of mooring lines. Each mooring line has a first end operatively connected to the tower, and a second end operatively connected to a respective anchor. Each mooring line further comprises at least two substantially rigid links joined together using linkages. Each joint is at least five meters in length. The mooring system is capable of maintaining station-keeping for the vessel greater than about 100 Mega-Newtons such that operations may be conducted when the marine environment is substantially iced over.
    Type: Application
    Filed: February 2, 2010
    Publication date: October 25, 2012
    Inventors: Carl R. Brinkmann, Theodore Kokkinis, Adel H. Younan, Finbarr J. Bruen, Patricia Bruen
  • Publication number: 20120266800
    Abstract: The disclosure provides a method and system of coupling end-to-end at least two existing mooring lines (12A, 12B) that are already deployed from the floating platform (56) to the seabed or other connecting structure to create a single shared line from the two lines. The shared lines then form a single looped line with both ends deployed to the subsea connections. The shared length provides enough payout of line to loosen one line sufficiently, while the other line becomes correspondingly tighter using the catenary length of the tight line. In part, the line can be loosened while the other is tightened because the lines are generally in the same overall direction to the seabed, such as in a same quadrant around the platform. Thus, the lines share their available lengths to provide the necessary payout for the repairs.
    Type: Application
    Filed: April 30, 2010
    Publication date: October 25, 2012
    Applicant: TECHNIP FRANCE
    Inventors: David N. Edelson, Jim Wang, Andrew Buck, Peter Sharp, Timothy Arthur Hale
  • Patent number: 8291847
    Abstract: A portable water level-responsive mooring device has a mooring strap with a ring capable of engaging the mooring device around a dock piling. The mooring strap has a suitable length of cord having a clip or ring on each end capable of releasably attaching to a fender, spacing tubes, and rollers. The spacing tubes and rollers have an outer diameter greater than the outer diameter of the spacing tubes and an inner diameter larger than the outer diameter of the cord. The cord is positioned within an arrangement of the spacing tubes and rollers, the length of cord being sufficient to wrap around a dock piling.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: October 23, 2012
    Inventor: Loren Brelsford
  • Patent number: 8251003
    Abstract: An offshore structure having a vertically symmetric hull, an upper vertical wall, an upper inwardly-tapered wall disposed below the upper vertical wall, a lower outwardly-tapered wall disposed below the upper sloped wall, and a lower vertical wall disposed below the lower sloped wall. The upper and lower sloped walls produce significant heave damping in response to heavy wave action. A heavy slurry of hematite and water ballast is added to the lower and outermost portions of the hull to lower the center of gravity below the center of buoyancy. The offshore structure provides one or more movable hawser connections that allow a tanker vessel to moor directly to the offshore structure during offloading rather than mooring to a separate buoy at some distance from the offshore storage structure. The movable hawser connection includes an arcuate rail with a movable trolley that provides a hawser connection point that allows vessel weathervaning.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: August 28, 2012
    Assignee: SSP Technologies, Inc.
    Inventor: Nicolaas J. Vandenworm
  • Patent number: 8240266
    Abstract: A mooring apparatus (2) including a frame (4), a mooring wheel (6) and a locking system, wherein the mooring wheel includes a circumferentially located mooring rope engagement portion and is rotatably coupled to the frame; and the locking system is adapted to prevent rotation of the mooring wheel when in a locked configuration and to permit rotation of the mooring wheel when in a released configuration, whereby when the locking system is in the locked position, the mooring wheel is configured such that the forces exerted by a mooring rope against the mooring apparatus act along an axis which passes substantially through a rotational axis of the mooring wheel.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: August 14, 2012
    Inventor: David Arthur Cole
  • Patent number: 8176866
    Abstract: The invention provides a tether connection apparatus for remotely interconnecting respective free ends of two portions of a mooring tether, such as that used to moor a floating production vessel to the seabed. The apparatus includes a frame, a winch mounted on the frame and operable to pull-in to the apparatus the free end of one of the portions of the mooring tether, subsequent to deployment of the apparatus. The apparatus also includes a connector mount on the frame for releasably mounting a connector. The connector is designed to interconnect the respective free ends of two portions of the mooring tether, once the winch has pulled into the apparatus the free end of a first of the portions of mooring tether. The mount is operable to release the connector subsequent to interconnection.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: May 15, 2012
    Assignee: Acergy Norway AS
    Inventors: Hallgeir Lenes, Christian Wathne, Marius Tungseth, Kenneth John Whyte
  • Patent number: 8156884
    Abstract: A mooring system comprising a structure in a body of water; a vessel in the body of water; a first anchor in the body of water; a second anchor in the body of water; a first line connecting the first anchor and the vessel; a second line connecting the second anchor and the vessel; and a third line connecting the structure and the vessel.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: April 17, 2012
    Assignee: shell Oil Company
    Inventors: Hugo Antonio Corvalan San Martin, Yile Li, King Him Lo, Joao Paulo Juliao Matsuura
  • Patent number: 8122841
    Abstract: A ship that is to be coupled electrically to a terminal a method, and a method and a device for connecting an electrical power line (1) between a ship (3) and a terminal (5). The device includes an unwinder (7) for unwinding a traction cable (13) from the ship (3) towards a connection end (15) of the electrical power line (1); a lashing device (9) for lashing the traction cable (13) to the connection end (15); and a traction device (11) for pulling the electrical power line towards the ship (3) so as to connect the connection end (15) with an electrical interface (17a) of the ship (3).
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: February 28, 2012
    Assignee: New Generation Natural Gas
    Inventor: Damien Feger
  • Publication number: 20120037061
    Abstract: Described is a boat mooring assembly and method for preventing a boat from being damaged during docking and mooring. The boat mooring assembly can be used to moor a boat while allowing the boat to adjust to rising and falling tides. The latter advantage is of particular benefit when a boat is being moored in bodies of water that experience large tidal changes.
    Type: Application
    Filed: August 14, 2010
    Publication date: February 16, 2012
    Inventor: Scott Bender