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Class 114/144B - Dynamic anchor


Subclass of Class 114 - Ships
No. of patents: 61
Last issue date: 10/05/2010


1    
NumberTitleIssue Date
7806065Modular system for fast and easy conversion of anchor moored semi-submersibles to dynamically positioned semis without the need for dry docking, using a diesel electric thruster system
A modular removable externally mountable diesel electric thruster system using azimuthing thrusters and a dynamic positioning system for positioning floating semi-submersible vessels with a ballasted waterline and at least one submerged pontoon. ...
10/05/2010
7328741System for sensing riser motion
A riser monitoring assembly is provided to monitor and manage a riser extending between subsea well equipment and a floating vessel. A riser measurement instrument module is connected adjacent a selected portion of the riser provides dynamic orientation data for the...
02/12/2008
7308863Offshore LNG regasification system and method
A system and method for the offshore transfer of liquefied natural gas from an LNG tanker vessel to a moored or dynamically positioned regasification plant is disclosed. Once the state of the natural gas has been changed from liquid to gas or regasified, the natural...
12/18/2007
7293520Control system for positioning of a marine seismic streamers
A method of controlling a streamer positioning device (18) configured to be attached to a marine seismic streamer (12) and towed by seismic survey vessel (10) and having a wing and a wing motor for changing the orientation of the wing. The metho...
11/13/2007
7280904Marine vessel running controlling apparatus, and marine vessel including the same
A marine vessel running controlling apparatus is applicable to a marine vessel which includes a propulsive force generating unit having an engine with an electric throttle as a drive source for generating a propulsive force to propel a hull of the marine vessel. The...
10/09/2007
7237501Means and apparatus for one person to load and unload a marine vessel from a trailer without assistance from other individuals
An electronic control system is provided to permit one-person loading and unloading of a vessel from a trailer. The control moves the vessel using bow, stern and fore/aft thrusters that are supplied by the boat manufacturer. Operator inputs to the system controller ...
07/03/2007
7222579Control system for positioning of marine seismic streamers
A method of controlling a streamer positioning device (18) configured to be attached to a marine seismic streamer (12) and towed by seismic survey vessel (10) and having a wing and a wing motor for changing the orientation of the wing. The metho...
05/29/2007
7186155Power steering rate controller for a boat and method
The invention provides a device and method for producing substantially kinematic steering of a boat whose yaw rate and direction is approximately proportional to the rate and direction that a steering device such as a steering wheel is being operated. The invention ...
03/06/2007
7150662Watercraft docking system and propulsion assembly
An improved docking system for a watercraft and a propulsion assembly therefor wherein the docking system comprises a plurality of the propulsion assemblies and wherein each propulsion assembly includes a motor and propeller assembly provided on the distal end of a ...
12/19/2006
7150240Method and apparatus for maneuvering a watercraft
A watercraft steer-by-wire control system comprising: an input device; at least one transducer in operable communication with the input device; a rudder control system in operable communication with the input device and configured to control a rudder of a watercraft...
12/19/2006
7128014Watercraft compensation system
A watercraft is disclosed that includes a hull, a deck supported by the hull, a propulsion system that is mounted to at least one of the hull and the deck, and a helm that is connected to the deck and configured to control the direction of the watercraft. A pole is ...
10/31/2006
7117810Platform structure
The invention relates to a floating platform (1) for offshore drilling or production of hydrocarbons, comprising a topsides (2) and a substructure (3) having a lower pontoon (4) and columns (5) connecting the pontoon (4) to ...
10/10/2006
7117811Anchor line pretensioning method
An anchor line pretensioning method of an anchor line configuration that includes anchor lines (2, 3, 4) which are not diametrically opposed with respect to the structure that is moored to the seabed via the anchor lines. Two anchor lines (2, 3) on a f...
10/10/2006
7108457System and method for reducing drag and vortex induced vibration in marine applications
A marine riser that includes active boundary-layer control (“BLC”) for reducing hydrodynamic drag and vortex-induced-vibration (“VIV”) caused by currents. The marine riser includes at least one riser pipe surrounded by a BLC sheath. Extending through the she...
09/19/2006
7080607Seismic data acquisiton equipment control system
A method of controlling a streamer positioning device configured to be attached to a marine seismic streamer and towed by a seismic survey vessel and having a wing and a wing motor for changing the orientation of the wing. The method includes the steps of: obtaining...
07/25/2006
7055447Dynamic positioning and motion control during cargo transfer operations
A system and method providing a portable, floatable vessel for controlling the absolute position and relative position and the motion of a floating craft using a small water plane area, high vertical drag coefficient and dynamic positioning is disclosed. The methodo...
06/06/2006
7037150Method and apparatus for controlling a waterjet-driven marine vessel
A control system and apparatus for controlling waterjet-driven marine vessels is disclosed. Some aspects allow for generation of a plurality of actuator control signals from a single vessel control signal, such as those provided by vessel control apparatus. A contro...
05/02/2006
6976443Crude oil transportation system
A crude oil transportation system uses a dynamically positionable floating crude oil storage and offloading vessel and a dynamically positionable shuttle tanker. The dynamically positionable floating crude oil storage and offloading vessel is a self-contained unit i...
12/20/2005
6957990Electric houseboat
An electric houseboat comprises a hull and a house-like structure mounted on the hull which includes at least one bedroom, a bathroom, and a kitchen. A Diesel generator comprises the sole power source for the houseboat. The operating temperature of the Diesel genera...
10/25/2005
6932542Tension leg platform having a lateral mooring system and methods for using and installing same
A lateral mooring system for tendon-based platforms is disclosed, which provides reduced installation and/or operational cost associated with the installation and operation of an extended-base tension leg platform. The lateral mooring system includes a plurality of ...
08/23/2005
6865996Waterjet control system
A dual axis joystick control system is used intuitively for maneuvring a waterborne vessel having two or more waterjets with steering deflectors (13) and reverse ducts (14) mounted independently of the steering deflectors. The joystick (21) is o...
03/15/2005
6848382Portable dynamic positioning system with self-contained electric thrusters
The system is an integrated and self contained electric thruster system integral with a dynamic positioning control system for dynamic positioning of any waterborne vessel having a hull with at least two sides and a deck connecting the sides, at least two azimuthing...
02/01/2005
6453838Turret-less floating production ship
The invention consists of a floating production vessel operating on the surface of the sea with two or more risers connected between equipment or wells on the sea floor and the vessel or its equipment at the surface. The risers are rigid, jointed pipe wit...
09/24/2002
6439936High retraction marine thruster
A floating marine structure, such as a drillship (10 ) includes at least one thruster (14, e.g.) which includes a thruster head (22) having a propeller (102) which is adjustable to vary the angular relation to the drillship hull (11) of the horizontal dir...
08/27/2002
6350164Dual electric motor stern drive with forward thruster control
A technique is provided for steering and navigating a watercraft. The technique provides for dual electric motor propulsion units aft of a transverse centerline of the watercraft. A forward thruster system is provided forward of the transverse centerline....
02/26/2002
6322406Dual electric motor marine propulsion system
A propulsion system for watercraft, such as pleasure craft, fishing boats, and so forth, includes a pair of unitary propulsion units driven by electric motors. The units are positioned to create components of thrust, and a net or resultant thrust to navig...
11/27/2001
6322405Reversing control for trolling motor propulsion system
An operator input device for a propulsion unit on a watercraft. The propulsion unit is of the type having an electric motor and a prop drivingly coupled to the electric motor. The operator input device includes a control circuit coupled to the propulsion ...
11/27/2001
6247421Method for DP-conversion of an existing semi-submersible rig
A method for converting a semi-submersible drilling or accommodation rig into a dynamically positioned vessel in which the rig has pontoon bodies submergible below a surface of a body of water for producing displacement, support columns extending upright ...
06/19/2001
5816182Tension mooring system
An offshore system is described that minimizes mooring loads attributable to oscillating wave drift. A tension member (24, FIG. 1), such as a chain, has a lower end (32) fixed to the seafloor and has an upper end portion (40) coupled to the vessel (12), s...
10/06/1998
5491636Anchorless boat positioning employing global positioning system
An anchorless boat positioning system dynamically and automatically maintains a boat at a selected anchoring location within water without the use of a conventional anchor by using a steerable thruster whose thrust and steering direction are determined on...
02/13/1996
5398635Floating airport
A floating airport that consists of a multiple-deck structure floatingly supported by a plurality of independent hulls removably attached to the underside of the structure. A system of propulsion jets is provided on all sides to permit the motion of the s...
03/21/1995
5282763Steerable bow thruster for swath vessels
A steerable bow thruster (12) system is located substantially within the pontoons (20) of a semisubmerged vessel (10) exclusive of a rotating nozzle (42) which is located on the upper side of the pontoons. The rotating nozzle can turn in any direction and...
02/01/1994
5249378Hydraulic thrust producing implement
A submersible thrust producing implement for use in combination with an excavator, the excavator being of the type having a boom and a stick with an attachment end on the stick for attaching the implement, which boom and stick can be extended and retracte...
10/05/1993
5081582Method of controlling position of on-water water curtain device
A method of controlling the position of an on-water water curtain device for building a water curtain on the water in order to stop or disperse dangerous gas leaking from a ship or to block flame and radiant heat due to the leaking gas. The method compris...
01/14/1992
5041029Automatic trolling arrangement
Automated constant depth steering and automated yaw correcting techniques for fishing boats or similar craft usable in concert or separately are disclosed. The constant depth steering arrangement controls a relative constant thrust electric trolling motor...
08/20/1991
4820217Device for preventing a flexible line from twisting
A device is provided for avoiding twisting of a flexible line having two ends one of which is connected to a revolving joint having two parts, one of these two parts being integral with said end and the outer part of said revolving joint being integral wi...
04/11/1989
4819730Development drilling system
A floating drilling platform having dual work stations is disclosed for performing deep sea drilling and/or hydrocarbon production operations. The structure of the platform is designed to accommodate replaceable modules which facilitate the installation a...
04/11/1989
4769773Vessel wave heading control apparatus
A vessel wave heading control apparatus is disclosed for use on a floating vessel. Linear acceleration signals from two accelerometers, which sense the rotational acceleration of the vessel due to waves which impact the vessel from a particular direction,...
09/06/1988
4747359Apparatus for controlling the turn of ship
When the right turn or left turn is set by operating one joystick lever, the bow thrustor arranged on the bow side generates the drift thrust in the rightward or leftward direction in accordance with the turning angular velocity on the basis of the operat...
05/31/1988
4723501Arrangement in a floating body for use during borehole-seismic measurements
An arrangement for spacing a floating body from a mother vessel during borehole-seismic measurements, wherein the floating body includes at least two buoyant bodies connected by a rigid framework and which supports the seismic equipment, the floating body...
02/09/1988
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