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7555992 |
Stabilizer apparatus and method
In a water craft, a stabilizer apparatus and method includes a stabilizer surface with a retractable arm connected with the stabilizer surface. An extension/retractor is connected with the...
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7527009 |
Method for damping of the rolling motion of a water vehicle, in particular for roll stabilization of ships
A method for damping of the rolling motion of a water vehicle, in particular roll stabilization of a ship with at least one propeller, comprising a rotating wheel body, which bears axis parallel...
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7513204 |
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...
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7451715 |
Active roll stabilisation system for ships
The invention relates to an active roll stabilization system for ships, including at least one stabilization element extending below the water line, which is mounted on a rotary shaft that extends...
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7434527 |
Steering and/or stabilising device for motorized watercraft
Steering and/or stabilising device for motorised watercraft, with at least two operating units comprising each a retractable fin ( 4 ), characterised in that the retractable fins of each operating...
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7287480 |
Nautical transport vehicle having enhanced stability
A nautical transport vehicle includes at least one floating member, at least one longitudinal fin pivotally mounted on the floating member, and at least one corresponding plate mounted on the...
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7263942 |
Fin stabilizer for vessel and control method and control program therefor
An object is to suppress the rocking motion of a vessel body with a high level of accuracy by obtaining a required lifting force. A torque calculation section 27 calculates a torque of a fin 11 ...
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7168386 |
Small boat
A small boat has left and right sponsons extending in a longitudinal direction and respectively attached to left and right side walls forming a boat body. The sponsons are provided with an...
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7104211 |
Watercraft stabilizing device
A device for stabilizing boats and other watercraft that is generally blade-shaped and attaches to the body or hull of the boat. The stabilizing device projects generally outwardly and downwardly...
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6978728 |
Active roll stabilization system for ships
The invention relates to an active roll stabilisation system for ships, comprising at least one rotatable stabilisation element extending below the water line, sensor means for sensing the ship's...
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6892660 |
Furling sail and means for turning mast
A sail that is fully battened by a plurality of essentially thin, spaced apart battens positioned at a steep angle on the sail. The sail is adapted to be furled around the mast. The battens are...
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6767166 |
Motion reduced floating structure
A motion reduced floating structure includes a main hull structure and a wave damping structure connected with the main hull structure. The wave damping structure may include a back board, a lower...
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6745715 |
Stern flap corrective motion and fuel saving control system for marine vessels
Corrective stabilizing motions are applied to a sea vessel hull during seawater travel in response to stern flap displacement by hydrodynamic forces induced at the buttock of the vessel hull and by...
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6712016 |
Personal watercraft having ventilated sponsons
Ventilated sponsons, personal watercraft having ventilated sponsons, and methods for adjusting the handling characteristics of personal watercraft by ventilating the sponsons. The present invention...
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6655308 |
Passive stabilizer for floating petroleum-production systems
The present invention relates to a passive stabilizer ( 3 ) which is installed in the lower part of a tanker used in floating production systems which make use of a mechanism which enables the...
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6652193 |
Swaying reduction apparatus and floating body therewith
The motion reducing apparatus has an orthorhombic shaped floating main body, a horizontal plumb plate supported horizontally on one side section of the floating main body by stay members, and flow...
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6651579 |
Personal watercraft having tuneable sponsons
Tunable sponsons for personal watercraft and personal watercraft having the tunable sponsons. The present invention provides personal watercraft having sponsons with an adjustable height relative...
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6546888 |
Removable stabilizing fin for a watercraft
A stabilizing fin assembly for use with a watercraft includes a mounting structure, a stabilizing fin structure, and a releasable securement structure. The mounting structure is fixedly attached to...
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6508187 |
Watercraft
The present invention provides a watercraft having steering components (steering tabs or stabilizers) for maintaining steering capability even while amount of water ejected from a propulsion pump...
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6427619 |
Open-trough kayak leeboard kit
An open-trough kayak sailing accessory kit is described in which a removable, portable, lightweight bi-pod mast is mounted to a removable board/hatch at the front of the kayak. The mast then tilts...
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6240869 |
Watercraft stabilization apparatus
Stabilization apparatus (12) for a watercraft (10) having a hull (14), including at least one hydrofoil (20) with a leading edge (22) and a trailing edge (24), the edges defining a chord (26)...
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6189477 |
Marine advertising vessel
A marine advertising vessel comprises a floating member with superimposed deck supporting a display frame for mounting an advertising message or display well above water level to be readily visible...
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6188186 |
Magnetostriction oscillator driving circuit and method
A circuit and method for driving a magnetostriction oscillator which is used for generating a high output ultrasonic wave by using a pulse width modulation is provided. In the circuit, a controller...
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6102625 |
Wave dampener for floating structures
A dampening device for dampening the vertical wave-induced motion component of a floating structure. The dampener projects in the form of a skirt down below the bottom of the floating structure...
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6101963 |
Rudder tab for suppression of tip vortex cavitation
Cavitation of a hydrofoil element, such as the rudder of a marine vessel, om exposure to a body of water during onset flow at different angles to the chordal axis of the rudder profile, is...
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6065417 |
Ship
The hull (100) of a ship with an elevated steering stand (200) is provided with a device for the leveling compensation of hull motions which, in at least one plane, compensates a hull movement in...
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6032602 |
Stabilizer for ocean going vessels and a stabilizer for other ocean going bodies, such as ships
A device for guiding the flow of floating objects. The device is connected to a hull of the floating object and, depending on the flow, feeds hydrodynamic forces into the hull. The device shows a...
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6026759 |
Adjustable leveling fin rudder method and apparatus for powerboats
Method and apparatus for leveling or adjusting a power-boat's average angle of bank or list about its roll axis RA regardless of side wind or off-center loading to improve passenger comfort,...
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5819678 |
Boat keel stabilizer system for trolling
This invention relates to a fold-able panel as keel stabilizer for small boats of up to 20 feet in length approximately during trolling speeds of up to ten miles per hour approximately, such that...
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5694878 |
Semi-submerged catamaran
In a semi-submerged catamaran comprising at least two submerged bodies, struts mounted in a standing position on respective submerged bodies and a hull part supported by the struts above the water...
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5661260 |
Fin assembly for a vehicle
A fin assembly for effecting guidance of a vehicle through a fluid medium cludes an electromagnet fixed in a portion of the vehicle, and a rigid shaft fixed to a hull portion of the vehicle and...
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5611295 |
Anti-spin/turning enhancer for personal watercraft
Two non-movable plates mounted on the outside rear of a personal watercraft, extending below the lower edge of the hull. These plates provide lateral resistance and prevent the hull from sliding...
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5535690 |
Pitch stabilized displacement vessel
A pitch stabilized vessel includes at least one displacement hull constructed for high propulsion speeds of, for instance, 35 knots. The hull is configured so as to locate the pitching center of...
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5511504 |
Computer controlled fins for improving seakeeping in marine vessels
A control system for a SWATH type vessel has control fins mounted on the pontoons of the vessel to improve seakeeping. The control system includes roll angle and pitch angle sensors, and can...
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5488919 |
Canted rudder system for pitch roll and steering control
The invention is directed to a system for stabilizing a marine vehicle against rolling and pitching motions and for providing steering control to the marine vehicle. The system includes at least...
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5487351 |
Control surface for underwater vehicle
A control surface for a vehicle comprising a flexible elastomeric body with ts base joined to the vehicle to form a smooth surface, a rigid tip bar joined to the distal end of the body, and a...
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5467728 |
Retractable bow diving plane for a submarine
A retractable bow diving plane is provided which can be rotated when fully xtended or retracted or when at any position in between, and which allows for independent operation of the port and...
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5365870 |
Body equipped with a streamlined profile, in particular a stabilizer fin for ships with a turbulence reducing structure and method of using the turbulence reducing structure
On a body, for example a stabilizer fin or a rudder blade on ships or the keel fin on sailboats with a keel, which is fastened to a support body, preferably a ship's hull, so that it projects...
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5235926 |
Anti-skid device for flat-bottomed boats
A pair of pivotally attached fins depend into the water below the hull of the boat. When turning maneuvers are executed the tendency of the boat to skid sideward is resisted by the downwardly...
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5186420 |
Articulated fin/wing control system
An articulated control surface is provided for hydrodynamic control utilig a moldable control surface. The central surface is shaped by contracting and elongating wire bundles fabricated with...
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5158035 |
Portable collapsible boat
A portable collapsible boat comprises a body formed of a bottom and a pair of sides which are integrally molded with the bottom. The sides are elastically flexible so as to be foldable to...
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5095839 |
Stabilizer for boats and the like
An apparatus for stabilizing a vessel to drastically reduce the rolling and/or pitching of floating vessels, platforms, or the like. At least one stabilizer is suspended by a bridle secured from a...
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5010835 |
Semi-submerged glass boat
An improvement is made in terms of rolling of a semi-submerged glass boat whose hull is formed of the main hull and float tanks provided on the lateral sides of the upper part of the main hull, and...
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5007868 |
Replaceable skeg for a marine propulsion device
A replaceable skeg for a marine propulsion device is provided and includes a tapered dovetail tongue and groove joint between top of the skeg and lower portion of a gear case housing on the marine...
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4986204 |
Oscillationless semisubmerged high-speed vessel
An oscillationless semisubmerged high-speed vessel comprises at least one lower hull submerged below the water surface in the cruising state of the vessel, an upper hull above the water surface and...
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4970979 |
Sailing yacht
A sailing yacht having a hull and a sectional mast holding a sail, is equipped with a canard rudder and two rolling keels. Each rolling keel has a ballast container. A three point wing system is...
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4947775 |
Water air interface vehicle
A water and air supported vehicle propelled by the wind. The vehicle includes a long narrow hull (30) that displaces water at low speeds and a plurality of hydrolfoils (36) distending from the hull...
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4934296 |
Hydrofoil sailboat and method of sailing therewith
A tetrahedrally shaped pivotable sailing frame of four spars and a sail with balanced hydrofoils is disclosed. A hydrofoil sailboat is created by pivotally attaching the frame to a hull along a...
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4905622 |
Marine anti-roll device
A system for reducing roll of vessels comprises at least one and preferably a pair of hydrofoil devices suspended from lines rigged on each side of the vessel, preferably from outrigger booms. The...
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4862818 |
Canoe stabilizing and guide mechanism
A canoe stabilizing and guiding mechanism which includes a bracket to which is mounted a vertically depending canoe paddle, the bracket being mounted on a tube for pivoting therewith, the tube...
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