Class / Patent application number | Description | Number of patent applications / Date published |
114122000 | Antirolling | 28 |
20080216730 | FIN STABILIZER TO REDUCE ROLL FOR BOATS IN TURNS METHOD AND APPARATUS - The disclosure relates to a fin stabilization system adapted to minimize roll about the longitudinal axis of the boat during sharp cornering at very high speeds. In one form, equipment such as a machine gun is mounted to the bow of the boat and targets are adapted to be engaged in high-speed maneuvers when cornering and the deck of the boat is not excessively rolled whereby blocking visibility in a turn. | 09-11-2008 |
20090114136 | Vessel Stabilization Apparatus and Method - A method for controlling the motion of marine vessel ( | 05-07-2009 |
20090120342 | Roll Motion Damping Device for a Floating Body - The present disclosure relates to techniques for reducing roll motion experienced by a floating vessel. The disclosure reveals several different techniques for damping roll motion, which may be used alone or in conjunction to stabilize a floating vessel. A typical disclosed embodiment of a roll motion damping device would employ a sponson on each side of the vessel. Each sponson would typically encompass one or more baffles. And a wing keel could be located on the outside of each sponson. When all of these features are used in conjunction, they work synergistically to maximize the resistance to roll experienced by the floating vessel. | 05-14-2009 |
20090301373 | Cooling Bearings, Motors and Other Rotating Heat Generating Components - Cooling apparatus for transferring heat from and cooling one or more heat generating components that support or drive a flywheel or other spinning member. The apparatus may include a first heat transfer element attached to and spinning with the spinning member, a second heat transfer element stationary with respect to the spinning member, wherein the first and second heat transfer elements move relative to one another, and wherein the first and second heat transfer elements are shaped and positioned in close proximity to one another so that substantial heat is transferred from the first heat transfer element to the second heat transfer element. Alternatively, the apparatus may include a set of rotating vanes mounted to rotate with the spinning member, an orifice configured to direct a spray of cooling liquid onto the rotating vanes, wherein the cooling liquid is sprayed onto the rotating vanes at a radially inward location, so that the liquid flows radially outward over the surface of the vanes as a thin film of liquid, and is thrown off the vanes by centrifugal action, and collecting apparatus configured to collect the liquid thrown off of the vanes. | 12-10-2009 |
20100037808 | FLOATING STRUCTURE MOTION SUPPRESSION SYSTEMS AND METHODS - A system comprising a floating structure, the structure subject to waves and/or water currents; and at least one motion suppression system attached to the floating structure; the motion suppression system comprising a first oscillating water column tuned to a first frequency and a second oscillating water column tuned to a second frequency. | 02-18-2010 |
20100050917 | System for Active Heave Compensation and Use Thereof - A system for active heave compensation of the running block in a drilling derrick on board a floating off shore platform comprises a double-acting hydraulic cylinder ( | 03-04-2010 |
20100147204 | RUDDER ROLL STABILIZATION BY NONLINEAR DYNAMIC COMPENSATION - A method for rudder roll stabilization having two-feedback-path nonlinear dynamic compensation (NDC) is described. The high-order, Nyquist-stable control system having NDC hereof is absolutely stable and will provide a 20%-40% improvement in performance over existing roll reduction designs when lower performance steering mechanisms are employed, and is superior to linear controllers. That is, the present invention will be effective rudder roll stabilization in commercial vessels having slower rudders as well as in vessels having steering machines representing the best performance currently available, such as military systems. Since no ship hardware modifications are required, the present roll control technology will be able to be economically implemented. | 06-17-2010 |
20100307401 | VESSELS WITH ROLL DAMPING MECHANISM - The present invention relates to a monohull vessel with a heavy lift crane. The crane ( | 12-09-2010 |
20110011320 | RISER TECHNOLOGY - The present invention is directed to novel methods and apparatus for the design, installation, use, recovery, and reuse of a Self Supporting Riser (SSR) for wells that are not under a platform. The SSR of the present invention uses standardized joints that can be recovered, potentially warehoused, and recombined in different configurations for different purposes or locations. Emphasis is on methods and apparatus that use relatively small vessels subject to high motions in the installation, use and recovery of the SSR. The SSR is adapted for high current and/or deep water applications for purposes of downhole well intervention and subsea equipment installation. In contrast to the apparatus and processes of the prior art, this invention addresses a comprehensive system design. | 01-20-2011 |
20110017114 | ACTIVE ROLL STABILISATION SYSTEM FOR SHIPS - An active roll stabilisation system for ships is described. The system comprises a rotatable stabilisation element extending below the ship's water line on a side of the ship, sensor means for sensing the ship's movements and delivering control signals on the basis thereof to driving means for rotatably driving the stabilisation element for the purpose of damping the ship's movements that are being sensed, as well as moving means for moving the stabilisation element with respect to the ship. The rotatable stabilisation element can only rotate in one direction. | 01-27-2011 |
20110017115 | ARRANGEMENT FOR DYNAMIC CONTROL OF RUNNING TRIM AND LIST OF A BOAT - The invention relates to an arrangement ( | 01-27-2011 |
20110030604 | SWING MOTION REDUCING APPARATUS FOR SHIP - In a swing motion reducing apparatus for a ship includes a flywheel, a gimbal mechanism configured to rotatably support the flywheel, a motor configured to rotate the flywheel based on a drive power to be supplied; and a motor driver configured to supply the drive power to the motor. A damper section is configured to brake a swing motion of the gimbal mechanism. A safety unit controls the motor driver to stop the supply of the drive power to the motor when a temperature of the damper section is equal to or higher than a predetermined temperature. | 02-10-2011 |
20110061578 | ROLL SUPPRESSION DEVICE FOR OFFSHORE STRUCTURE - The present disclosure relates to a roll-suppression device for an offshore structure. The device includes a damping plate separated downward from a hull to be placed below a bottom of the offshore structure by a connection unit, so that the width of the damping plate may be effectively enlarged without occurrence of collision during shuttle docking or ship-to-ship operation. Accordingly, the device may maximize roll-suppression, as compared with a bilge-keel or a step, and a detachable design of the device facilitates ship construction or shore operation inside a drydock. | 03-17-2011 |
20110100279 | HEAVE COMPENSATION SYSTEM AND METHOD - A heave compensation system comprises a motor-generator to interact with a load and a control unit being arranged to control operation of the motor-generator. The control unit is arranged to: operate the motor-generator to drive the load in a first part of a wave motion cycle, and operate the motor-generator to regenerate in a second part of the wave motion cycle at least a part of the energy with which the load has been driven in the first part of the wave motion cycle. The heave compensation system comprises an electrical storage element to buffer at least part of the regenerated energy for powering the motor-generator in a following cycle of the wave motion. | 05-05-2011 |
20110100280 | DRAG-INDUCING STABILIZER PLATES WITH DAMPING APERTURES - A floating vessel is equipped with perforated plates which exhibit both an added-mass effect and a damping effect. The addition of porosity to an added mass plate phase-shifts the added mass force so that it becomes at least partially a damping force which does not depend on large velocities to develop a large damping force. Preferred porosity is in the range of about 5% to about 15% of total plate area. A semi-submersible drilling rig may have damper plates fitted between its surface-piercing columns and/or extending from the sides of its pontoons. A truss spar offshore platform may have damper plates installed within its truss structure intermediate its hull and ballast tank. Drill ships and similar vessels may be equipped with damper plates extending from the sides of their hulls to reduce both heave and roll. In certain embodiments, the damper plates are retractable so as not to interfere with docking and to reduce drag while the vessel is underway. | 05-05-2011 |
20110192333 | Stable Floating Structure wit Limited Oscillations - The stable floating platform is constituted from (as shown in FIG. | 08-11-2011 |
20110209651 | Riser for Coil Tubing/Wire Line Injection - The present invention is directed to a system including a self supporting riser (SSR) which is connected to a well to provide fluid communication to fossil hydrocarbon reservoirs deep below the seafloor. The SSR is constructed of a plurality of joints comprising regular joints and specialty joints that define the SSR and are selected to optimize the SSR for a well in a specific location. A unique aspect of the invention is further directed to a small vessel subject to high vessel motions that permits a coil tubing/wire line system to be mounted on a stabilizer system mounted on the vessel. The riser extension that connects the vessel to the self supporting riser preferably has a telescopic joint/section that is designed for the heave of the vessel. | 09-01-2011 |
20120132118 | TRIMARAN MOTION DAMPING - A multi-hulled vessel ( | 05-31-2012 |
20120137946 | APPARATUS FOR REDUCING PITCHING AND ROLLING MOTION OF VESSEL - Provided is an apparatus for reducing the pitching and rolling motion of a vessel, the apparatus including a plurality of buoyancy members spaced apart from each other and vertically slidably mounted on a vessel, a plurality of hydraulic cylinders that are connected to the upper end portions of the respective buoyancy members and receive the locomotive power of the buoyancy members that rise from waves, and a hydraulic connection line provided in such a manner that the hydraulic pressures of the hydraulic cylinders are interconnected, so that the hydraulic pressures, which are generated from the rise of the hydraulic cylinders due to the rise of the buoyancy members located at the peaks of the waves, can be supplied to the hydraulic cylinders located at the troughs of the waves to cause the buoyancy members to fall, thereby increasing the buoyancy of the vessel and restraining the pitching and rolling thereof. | 06-07-2012 |
20130036958 | FAULT TOLERANT VESSEL STABILISER CONTROL SYSTEM - A vessel stabiliser control system ( | 02-14-2013 |
20130036959 | ACTIVE ADAPTIVE GYROSTABILISER CONTROL SYSTEM - A gyrostabiliser control system and method for stabilising marine vessel motion based on precession information only. The control system employs an Automatic Gain Control (AGC) precession controller ( | 02-14-2013 |
20130319312 | CONTROL METHOD FOR ANTI-ROLL STABILIZATION OF WATERCRAFT, AND CORRESPONDING STABILIZATION SYSTEM AND COMPUTER PROGRAM PRODUCT - A method for controlling a stabilizing fin for anti-roll stabilization of watercraft standing at anchor, comprising the steps of: detecting at least one value identifying roll of the watercraft; estimating the expected oscillation of roll of the watercraft as a function of the value detected; determining a path for the movement of the stabilizing fin as a function of the expected roll; and controlling the movement of the stabilizing fin as a function of the path. | 12-05-2013 |
20140060411 | ANNULAR BUOYANT BODY - The invention relates to the field of buoyant bodies, and more particularly to an annular buoyant body ( | 03-06-2014 |
20140202366 | METHOD AND SYSTEM FOR MEASURING MOTIONS - The invention is related to a method and system for measuring motions of a moving, essentially rigid, floating (elongated) body such as a boat, yacht or vessel using two motion detectors that are installed near the ends of, or far enough away from each other in the (elongated) floating body. In accordance with the invention the two motion detectors are essentially simultaneously measuring the movements of the floating body. | 07-24-2014 |
20140331908 | HEAVE COMPENSATION AND TENSIONING APPARATUS, AND METHOD OF USE THEREOF - A heave compensation and tensioning apparatus for use on a floating vessel during “locked-to-bottom” operations is provided. The apparatus includes a pair of hydraulic cylinders that are fixed to a lower section of a frame. Respective free ends of piston rods of the hydraulic cylinders are operatively associated with an upper section of the frame. A pair of accumulators are in communication with pressure vessels and the cylinders using a pneumatic fluid line and a primary hydraulic fluid line, respectively. A control valve assembly allows the piston rods to retract or extend in response to, and to compensate for, heave of the floating vessel. An isolation valve can hydraulically lock the piston rods. In this way, the heave compensation and tensioning apparatus forms a rigid link and can be employed as a secondary or back-up heave compensator for a primary heave compensator. | 11-13-2014 |
20150298772 | FLOATABLE SUPPORT STRUCTURE FOR AN OFFSHORE WIND TURBINE OR OTHER DEVICE - An apparatus for supporting an additional structure near a surface of a body of water, and a system which includes the apparatus and further includes the structure attached to the apparatus. The apparatus and the system are each configured to assume a rest position and orientation when the apparatus or system is floating at the surface and when the body of water is substantially still, where the rest orientation defines a vertical direction extending from the surface to a keel at a lowermost position of the apparatus. The apparatus includes a support member, which, in use, is attached to the additional structure; and buoyant units. Each buoyant unit is attached to the support member at or near the keel and extends from the keel in a longitudinal direction of the buoyant unit, which longitudinal direction defines an angle of approximately 35°-65° with respect to the vertical direction. | 10-22-2015 |
20150307168 | KAYAK STABILIZER - A stabilizing ballast system for a kayak. A movable ballast weight is configured to be deployed below the kayak for maximal stability, and raised above the bottom of the hull in order to navigate in shallow water or when beaching the kayak. The ballast weight system is user-configurable over a wide range of weights. | 10-29-2015 |
20160075413 | SUBMERSIBLE ACTIVE SUPPORT STRUCTURE FOR TURBINE TOWERS AND SUBSTATIONS OR SIMILAR ELEMENTS, IN OFFSHORE FACILITIES - A submersible active support structure for turbine towers and substations or similar elements, in offshore facilities, which is made up of hollow concrete bodies joined together by means of segments or beams, through which water passes from one body to another, with a pumping system that regulates the inclination of the structure based on the overturning moment, equipped with means for regulating immersion, which regulate the amount of water in the hollow bodies such that, in its working position, the center of gravity of the structure is below the center of buoyancy thereof, and the area of the cross-section of the structure at the waterline is smaller than the sum of the submerged cross-sections of said hollow bodies. In addition, the assembly may operate with a traditional mooring system, or with a single-point mooring system that enables the assembly to position itself facing the wind. Lastly, to install it in shallow areas, a special design may be used which enables the assembly to sit upon the sea bed, thus reducing and evening out the loads upon the same. | 03-17-2016 |