Entries |
Document | Title | Date |
20090194011 | Vessel Including Automatic Ballast System Using Tubes - A double-hulled vessel has a ballast draft line previously set at an empty state thereof. The double-hulled vessel of the present invention comprises an outer shell formed on bottom and side portions of the vessel; an inner shell formed on bottom and side portions of the vessel within the outer shell; an air tube positioned between the inner and outer shells; and a seawater tube positioned between the inner and outer shells, wherein seawater holes are formed in the outer shell to be connected to the seawater tube, the seawater tube is capable of containing seawater to substantially fill a space between the inner and outer shells extending from the bottom portion of the vessel up to the ballast draft line of the side portion of the vessel when the vessel is not loaded with cargo, and the air tube is capable of containing air to substantially fill the space between the inner and outer shells of the bottom and side portions of the vessel when the vessel is loaded with cargo. | 08-06-2009 |
20090255454 | Mooring System For Stabilizing A Vessel, A Vessel, Method For Stabilizing A Vessel And Use Of A Mooring System - A mooring system for stabilizing a vessel for handling offshore structures includes at least one mooring unit, a connection mechanism for connecting the mooring unit to the vessel, and a tractive mechanism for stabilizing the vessel by establishing permanent tension in the connection mechanism. Furthermore, the tractive mechanism includes a mechanism for lowering the connected vessel's position in relation to the water level. A method of stabilizing a vessel, a vessel for handling offshore structures and use of a mooring system are also contemplated. | 10-15-2009 |
20100186651 | PRELOADING TO REDUCE LOADS AND SAVE STEEL ON TOPSIDES AND GRILLAGE OF CATAMARAN SYSTEMS - The present invention reduces loads and saves steel on topsides and grillage of a catamaran system by creating a lifting force from a barge to the topsides to offset a sagging bending moment of the self-weight on the topsides during transportation. The present invention can reduce the span of the supports on the topsides on the catamaran float-over barges and move the reaction forces toward inner edges of the float-over barges. The lifting force can cause a reduction of stress on the topsides' and grillage's members caused during the topside offloading and transportation. The stress reduction can result in the members withstanding the additional dynamic load caused by a catamaran system without increasing member sizes adequate for an offloading operation. The reduction results in a significant savings, given the size of a typical topsides for a Spar hull or other offshore structure. | 07-29-2010 |
20110126748 | WIND TURBINE HOLDING AND LIFTING SYSTEM AND MOVABLE OPERATING PLATFORM ABOVE WATER - The present invention which relates to the field of offshore wind turbine installation technology, discloses a wind turbine holding and lifting system for a movable operating platform above water. The wind turbine holding and lifting system comprises a first standing column, a second standing column, a beam lifting device, no less than one beam and enclasping means for holding the wind turbine tower; the first standing column and the second standing column are juxtaposed, and the opposed faces of the first and second standing columns are provided with guiding grooves for sliding the beams; the enclasping means is arranged on the beam, and the two ends of the beam are interfitted within the guiding grooves of the first and second standing columns; the beam lifting device is fixed to the first or second standing column, and the lifting end of the beam lifting device is connected to the beam. The wind turbine holding and lifting system with such a structure can fix the assembled wind turbine in the installation state and the wind turbine can be lifted and lowered. The present invention further discloses a movable operating platform above water. | 06-02-2011 |
20110146556 | ACTIVE HEAVE COMPENSATION WITH ACTIVE DAMPING CONTROL - A damping control system includes a first sensor configured to detect movement of a vessel and generate a first signal representing the vessel movement and a second sensor configured to detect movement of a cable and generate a second signal representing the cable movement. An actuator is configured to dampen a force applied to a payload during a force event. The force event is at least partially caused by the movement of the vessel and the cable. A controller is configured to identify the force event based at least in part on the first and second signals and control the actuator during the force event to substantially dampen the force applied to the payload. | 06-23-2011 |
20110179986 | Method and Apparatus for Towing Offshore Wind Turbines - A method of moving a floating wind turbine relative to a body of water, the floating wind turbine having a buoyant body with a nacelle at the upper end thereof, including the steps of floating the floating wind turbine in the body of water, and towing the floating wind turbine whilst holding the buoyant body in an inclined position, whereby the nacelle is held clear of the water. As the wind turbine is held in an inclined position, it can be towed through regions of shallower water than if it were in a vertical position. | 07-28-2011 |
20110197801 | Sponge ballast system - A floatation device of any size or shape stabilized by a ballast system comprised of sponge contained in permeable enclosures, which enclosures in turn are secured to the underside of the device, which sponge, upon contact with water, rapidly absorbs such water and provides prompt, sufficient ballast. | 08-18-2011 |
20120090521 | FLOTATION DEVICE - This device is a manual and/or automatic inflatable flotation device with reflective material. The device is permanently, semi-permanently or temporarily mounted to a pleasure vessel, canoe/kayak, personal watercraft or other vessel. It provides additional flotation and incremental buoyancy to the vessel. The device has hand grab(s) which can be used to roll the vessel to an upright position or used by the passenger(s) to stay with the vessel when in the water. | 04-19-2012 |
20120298027 | OFFSHORE FLOATING PRODUCTION, STORAGE, AND OFF-LOADING VESSEL FOR USE IN ICE-COVERED AND CLEAR WATER APPLICATIONS - An offshore floating production, storage, and off-loading vessel has a hull of generally cylindrical or polygonal configuration surrounding a central double tapered conical moon pool and contains water ballast and oil and/or liquefied gas storage compartments. An adjustable water ballast system induces heave, roll, pitch and surge motions of the vessel to dynamically position and maneuver the vessel. The moon pool shape and other devices on the vessel provide added virtual mass for increasing the natural period of the roll and heave modes, reducing dynamic amplification and resonance due to waves and vessel motion, and facilitate maneuvering the vessel. A disconnectable turret buoy at the bottom of the moon pool connects risers and mooring lines. | 11-29-2012 |
20130092069 | INTEGRALLY EQUIPPED HEAVY DRAUGHT FLOATING TYPE OIL PRODUCTION PLATFORM WITH UNCONDITIONAL STABILITY AND OFFSHORE INSTALLATION METHOD THEREOF - An integrative deep draft floating production platform with unconditional stability and an offshore installation method thereof are disclosed. The platform comprises an ring ballast tank ( | 04-18-2013 |
20130160688 | GAS LIFT PUMP APPARATUS WITH ULTRASONIC ENERGY GENERATOR AND METHOD - Gas lift pump apparatus comprising a column through which a liquid medium may be pumped by gas lift, the apparatus comprising a delivery device for delivering a flow of a gaseous fluid into the liquid medium, the device comprising means for generating ultrasonic energy therein by the flow of gaseous fluid therethrough, the device being operable to launch the ultrasonic energy into the liquid medium in the column. | 06-27-2013 |
20130276687 | ASYMMETRIC MOORING SYSTEM FOR SUPPORT OF OFFSHORE WIND TURBINES - A mooring system for a semi-submersible platform includes buoyancy structures for providing buoyancy to the semi-submersible platform, mooring lines connected to the buoyancy structures, and anchors embedded in the sea floor that are connected to the mooring lines. At least one-half of the mooring lines are attached to one of the buoyancy structures. A ballast control system for a wind turbine platform includes a sensor that is configured to detect a rotation of a wind turbine and a controller that is configured to direct a transfer of ballast to correct the of the wind turbine. | 10-24-2013 |
20130298815 | FLOATING MARINE STRUCTURE - The invention provides a sub-structure ( | 11-14-2013 |
20130340663 | APPARATUS AND METHOD FOR WATERCRAFT STABILIZATION - A transportable watercraft stabilization apparatus includes a stability device configured to impart a stabilizing torque to a watercraft when mounted on the watercraft and a transportable containment device containing the stability device therein. The transportable containment device includes a first attachment apparatus for releasably attaching to a transporting means and a second attachment apparatus for releasably attaching to a coupling device onboard a watercraft. Furthermore, the transportable watercraft stabilization apparatus includes a power source configured to provide power to the stability device for generating the stabilizing torque. The watercraft stabilization apparatus is transportable between a first watercraft and a second watercraft for providing on-demand stabilization to the second watercraft. | 12-26-2013 |
20140216320 | SHIP WITH SINKING PREVENTION TANK AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a ship with sinking prevention tanks and a method for manufacturing the same wherein the ship includes: tank-retaining parts formed on the port and starboard sides of the bottom of a hull; the sinking prevention tanks insertedly disposed in the tank-retaining parts and having gas charging parts formed thereon so as to charge helium gas thereinto; a blocking wall adapted to block the top sides of the tank-retaining parts in which the sinking prevention tanks are insertedly disposed; gas supply lines connected to the gas charging parts formed on the sinking prevention tanks; and charging valves disposed on the inner side of the deck of the hull in such a manner as to be connected to the gas supply lines and thus to recharge the helium gas to the interiors of the sinking prevention tanks through the gas charging parts. | 08-07-2014 |
20140245939 | SWINGING MOTION REDUCING APPARATUS AND SHIP USING THE SAME - A swinging motion reducing apparatus includes a flywheel | 09-04-2014 |
20140261128 | Barge Mounted Floating Power Plant - According to an embodiment of the disclosure, a vessel includes a hull structure, a foundation, a plurality of springs, and plurality of hydraulic jacks. The hull structure is configured to float on water. The foundation is mounted on top of the hull structure and has significant mass. The foundation is configured to support a turbine structure and to absorb at least a portion of the forces or kinetic energy from the turbine structure. The plurality of springs are positioned between the hull structure and the foundation. The plurality of springs are configured to isolate the foundation from the effects of deflections in the hull structure, to absorb at least a portion of the forces or kinetic energy transferred from the turbine structure, and to transfer at least another portion of the forces or kinetic energy from the turbine structure to the hull structure. The plurality of hydraulic jacks are positioned between the hull structure and the foundation and are configured to adjust the degree of stiffness between the hull structure and the foundation, and to absorb forces or kinetic energy from the turbine structure. | 09-18-2014 |
20150136006 | FLOATING OFFSHORE WIND TURBINE WITH DAMPING STRUCTURE - An offshore wind turbine comprising a buoyancy structure intended to provide a buoyancy force to support the wind turbine, wherein said buoyancy structure comprises at least one floater tank and a damping structure extending radially outward from the floater tank to damp forces due to heave, pitch or roll. | 05-21-2015 |
20160152307 | MULTIFUNCTIONAL CARRYING DEVICE FOR TIDAL STREAM GENERATOR AND USING METHOD THEREOF | 06-02-2016 |