Class / Patent application number | Description | Number of patent applications / Date published |
114126000 | Fins and boards | 13 |
20080257245 | Fins to control angular travel of sailboats and wake control - As Aileron (fin) is to airplanes and aqualeron is to ships, a device with fins position on both sides of the keel in a horizontal position where a set of gears controls the fin on one side in a downward arc and the other side in an upward arc providing a controlled below water force to maintain any arc of travel on a sail boat, or as a hydrofoil. A set of fins positioned on the bottom of a sailboat eliminating the keel. A set of fins positioned at the bow of a motor boat providing a downward force of the bow. A set of fins on either side of the stem of a power boat, when activated, swing out directing water to the rear of the boat filling the cavity created by the boat to eliminate the wake. A set of fins on both sides when opened to a tube allowing a force of water to enter and empty at the rear of the boat filling the cavity with instant water thereby controlling a wake free operation. | 10-23-2008 |
20100031861 | Stabilizer of ship rolling - The roll-stabilizer consist of short wings, with aspect ratio r=0.5-0.75, fastened immovably to the ship hull in staggered rows or in lines along the bilges, at port and starboard sides. The height of the wings is such that they do not protrude the maximum breadth and base line of the ship. The transverse distance between two wing lines of the staggered row is 0.5-0.7 of the wing's chord, and the stagger between wings of the two lines is equal to the chord. The wing profiles are parallel to the longitudinal axis of the ship or form a small angle of 2-4° with this axis. At zero forward speed the roll damping moment of the staggered stabilizer is almost equal to that of continuous bilge keels having the same height and area. During motion of the ship ahead the lift forces of the wings produce a large damping moment, considerably reducing the ship rolling. | 02-11-2010 |
20100083887 | AUTOMATIC SYSTEM FOR ANTI-ROLL STABILIZATION OF WATERCRAFT - An automatic system for anti-roll stabilization of watercraft, comprising, a stabilizing fin that can turn about an axis, an actuator assembly, designed to govern rotation of said fin about said axis, and a regulating system, designed to govern said actuator assembly as a function of signals indicating rolling of the watercraft. Said actuator assembly comprises an electric motor connected to said stabilizing fin. | 04-08-2010 |
20100275830 | ROLL STABILIZER - A roll stabilizer ( | 11-04-2010 |
20110132246 | Variable Geometry Fin - A variable geometry fin for use in a ship stabilization system is provided. A stabilization element adapted to extend below the water line of a ship. The stabilization element has a foil body and a trailing edge assembly extending from inside of the foil body. The trailing edge assembly includes an extension body having two opposing surfaces, a trailing edge attached to an end of the extension body, a vortex generator having protrusions and/or recesses on the two opposing surfaces, and at least one support guide located on an outboard side of the extension body. A deploy mechanism is attached to the foil body and the trailing edge assembly. The trailing edge assembly extends laterally from the foil body producing an additional surface area. | 06-09-2011 |
20120167813 | HEAVE STABILIZED BARGE SYSTEM FOR FLOATOVER TOPSIDES INSTALLATION - The present invention increases the heave resistance rate of a barge system from wave motion, as the system is used to install a topsides to offshore structures. One or more heave plates can be coupled at a location below the water surface to one or more barges to change the period of motion of the barge(s) relative to the period of wave motion to better stabilize the barge(s) and resist the heave. A heave plate can be coupled between the barges, or on end(s) or side(s) of the barge(s). In at least another embodiment, each barge can have a heave plate and the heave plates can be releasably coupled to each other. Further, the heave plate can be rotated to an upward orientation during transportation of the topsides to the installation site to reduce drag, and then rotated to a submerged position during the installation of the topsides. | 07-05-2012 |
20120304910 | WATER VEHICLE HAVING A PROFILED ELEMENT ARRANGED ON THE BOW SIDE - A device for arranging a profiled element on the bow side of a water vehicle and a water vehicle having a wind-impacted element. The device has at least one profiled element ( | 12-06-2012 |
20130098281 | ROLLING REDUCTION APPARATUS OF FLOATING STRUCTURE - A rolling reduction apparatus includes a pair of plate members attached to both ends in a width direction on a bottom of a floating structure. Each of the plate members has a plurality of through-holes arranged in a longitudinal direction of the floating structure. The rolling motion of the floating structure is reduced because eddies are formed to consume energy when water passes through the through-holes. | 04-25-2013 |
20140090588 | Steering and roll-stabilizing device with retractable fins - The system includes at least two units each contained in a watertight housing to be installed on starboard and on port side, each containing inside a blade or a fin having a moving device that retracts or projects the fin outboard when necessary for steering or stabilizing. In both cases the blades or the fins are maintained normally inside their housing to reduce sailing resistance and are extended right or left only when activated for steering or for stabilizing. The motion device essentially consists of a plate joined to the blade or fin tilting on a shaft pivoting inside the housing but holding out at least one end passing through a hub provided with a seal providing water tightness and supporting actuators, and capable of supporting remote monitoring systems that record the exact position of the blade constantly and automatic controls of course or an automatic stabilization system. | 04-03-2014 |
20140209006 | FIN STRUCTURE FOR WATERCRAFT - By way of overview and introduction what is disclosed is a fin structure for use with watercraft that is configured to provide lateral stability and generate hydrodynamic lift. The fin structure has a first end that can be connected to the underside of a hull. Two sidewalls extend away from the first end down into the water. As the side walls extend away from the hull, they also first diverge relative to one another and then converge to form a generally diamond shaped fin structure that is symmetric across the longitudinal axis and has an opening in between the sidewalls. Preferably, the sidewalls have a cross-section profile with an outer surface having more curvature than the inner surface. The shape of the fin structure provides lateral stability, hydrodynamic lift and maneuverability. | 07-31-2014 |
20140251197 | SPRING-LOADED GEARED FLAP STRUCTURE - A spring-loaded flap rudder or flap stabilizer adapted to be mounted to the hull structure of a ship. In a geared version of the invention, the rudder or stabilizer includes a member and a gear including teeth. The rudder or stabilizer also includes a flap member pivotally connected to the member with a component, such as a spring, arranged to limit jamming between the gear and a movable flap gear. The flap gear includes a rod movably engaged in a socket of the flap member and gear teeth for engagement with the teeth of the gear. | 09-11-2014 |
20140305359 | FLOATING OFFSHORE PLATFORM WITH PONTOON-COUPLED EXTENSION PLATES FOR REDUCED HEAVE MOTION - A floating offshore platform is disclosed with one or more extension plates fixedly coupled to one or more pontoons on the offshore platform and extending from the pontoons. As the floating platform moves, the pontoon-coupled extension plates separate the water and cause drag on the platform. The water moving with the extension plates also increases the dynamic mass. The added drag and dynamic mass increases the natural period of the motion away from the wave excitation period to minimize the wave driven motion compared to a platform without the extension plates. The extension plates can be coupled to the pontoons during fabrication at the yard directly or through frame members. The extension plates generally are generally located inclusively between the top and bottom elevations of the pontoons, and therefore do not significantly reduce the clearance between the seabed and the hull at the quayside. | 10-16-2014 |
20140345510 | MOVEMENT INHIBITING APPARATUS FOR FLOATING OFFSHORE WIND TURBINE AND FLOATING BASE USED FOR OFFSHORE WIND TURBINE - A movement inhibiting apparatus for a floating offshore wind turbine and a floating base with the apparatus. The movement inhibiting apparatus for the floating offshore wind turbine comprises at least one layer of an annular shake-reducing panel placed horizontally and surrounding the floating base. A plurality of shake-reducing fins is further arranged on the shake-reducing panel. The plurality of shake-reducing fins comprises a first set of shake-reducing fins arranged on one side of the shake-reducing panel and the shake-reducing fins of the first set are spaced apart vertically around the floating base. The movement inhibiting apparatus for the floating offshore wind turbine can effectively inhibit the movement of the floating wind turbine and is of low cost. | 11-27-2014 |