| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 114274000 | Having hydrofoil | 22 |
| 20100000461 | Foil shapes for use in barge skegs and marine propeller shrouds - An airfoil shape exhibiting low drag and a high lift/drag ratio has a low thickness/chord ratio and a low camber/chord ratio. The airfoil shape provides desirable results when used in barge skeg assemblies and in propeller shrouds for tugs used to tow ocean going barges. | 01-07-2010 |
| 20090120346 | Self-propelled hydrofoil device with flexible steering assembly - A self-propelled hydrofoil device that includes a front foil, a rear foil, a user platform, a steering shaft and a frame that couples these components. The steering shaft preferably has a top section and a lower section, the top section being substantially rigid and the lower section being flexible relative to the top section. The top and lower sections may be formed of different materials or may be formed of the same material, integrally or non-integrally. The top and lower sections are preferably offset by an angle, α, to achieve more ready bending of the lower section. | 05-14-2009 |
| 20080250999 | High-Speed Multihull Boat - A high-speed, multi-hull boat that includes at least three hulls ( | 10-16-2008 |
| 20100258046 | Method and apparatus for suppressing cavitation on the surface of a streamlined body - A method and a device for suppression of cavitation and thus for reducing resistance to movement of a streamlined body in a flow of liquid based on the principle that development of cavitation bubbles in the area of separation of the flow that is accompanied by the development of turbulence is prevented by injecting a gaseous medium into the aforementioned area for separating the flow of liquid from the surface of the streamlined body. The device of the invention can be realized in the form of various specific embodiments with supply of gas under pressure to the cavitation-development area through a plurality of perforations and transverse slits. | 10-14-2010 |
| 20090314195 | Boat Stabilizer, Boat Motor and Related Method - A boat stabilizer that is attachable to the anti-cavitation plate or other structure of the lower drive unit of a boat motor without permanently modifying the structure of the anti-cavitation plate or other structure is provided. The shape and size of the boat stabilizer causes the stabilizer to effectively harness and control the thrust energy generated by the propeller resulting in improved thrust and fuel efficiency. Due to various features, the drag associated with the boat stabilizer is kept to a minimum. Finally, decals and other decorative elements are integrally embedded into the top surface of the inventive boat stabilizer using in-mold decoration (“IMD”) technology which makes the elements resistant to ultra-violet light, virtually indestructible and highly appealing. A boat motor, a method of attaching a boat stabilizer to a boat motor and a method of molding a boat stabilizer having at least one decorative element integrally embedded in the top surface thereof are also provided. | 12-24-2009 |
| 20120192781 | Watercraft device - A watercraft device according to the invention includes a central body and two lateral hulls, each having a shape optimized to reduce resistance to the advance motion and connected to the central body through at least one connecting arm, causing the central body to be in raised position with respect to the lateral hulls. The connecting arms have a given angle from the horizontal plan of the device, and the lateral hulls and the central body are oriented with longitudinal axes, or axes in the bow-stern direction, essentially parallel to each other. The central body connecting the lateral hulls is shaped like wing, which helps in sustaining the weight of the vehicle at high speed and exploits ground effect to increase aerodynamic efficiency. In addition, each of the lateral hulls has one or more mobile and/or fixed hydrofoil elements that extend below the corresponding lateral hull. | 08-02-2012 |
| 20090084301 | Device for reducing the drive power requirement of a ship - A device for reducing the drive power requirement of a ship and even for not very quick ships of all types, in particular for slow, wide ships, such as tankers, bulkers and tugboats, and for improving the propeller blower stream as well as for producing a pretwist includes a front nozzle fixedly installed on the hull with fins or hydrofoils placed in the inner space thereof. | 04-02-2009 |
| 20110247541 | HYDROFOIL-ASSISTED MULTI-HULLED WATERCRAFT - A catamaran ( | 10-13-2011 |
| 20100037810 | Multi Hull Water Craft - The present invention relates to a water craft ( | 02-18-2010 |
| 20110162572 | for a Marine Vessel | 07-07-2011 |
| 20080210149 | Ship Hull Comprising at Least One Float - A ship hull includes at least one float ( | 09-04-2008 |
| 20080289562 | HYDROFOIL BLADE GUARD - A foil guard for sporting devices having hydrofoils covers the exposed edges of the foils and thereby prevents damage to persons or property from accidental contact with the foils. The guard may include cords or elastics to secure the guard to the foils, and may float in water to prevent loss of the guard. | 11-27-2008 |
| 20120132124 | SPAR Based Maritime Access Vehicle - The invention relates to a spar based vessel for accessing offshore installations and vessels, including wind farm turbines, in which the centre of gravity of the vessel is positioned below the centre of buoyancy, which is positioned below the operational waterline, the operational waterline occurs at low cross-sectional area vertical struts, and the vertical struts support a topside structure for passengers. Active ballast control system and location of the propulsive elements permits the vessel to travel in spar orientation by positioning the vector of propulsion to lie in the same horizontal plane as the transverse centre of drag of the vessel. A docking system permits safe connection of the vessel to offshore installations, including wind turbines of generic design. | 05-31-2012 |
| 114279000 | With shock damping means | 2 |
| 20100089303 | Open sea hydrofoil craft - An open sea hydrofoil craft comprising a hull (A) with lateral vertically oriented blades (B | 04-15-2010 |
| 20090217857 | SURFACE SKIMMING WATERCRAFT - A water craft including a hull having a main longitudinal axis defining a direction of travel of the craft, a plurality of discs mounted at respective opposed sides of the main longitudinal axis to and below the hull and in combination having sufficient buoyancy to support the hull above the water, each disc comprising an essentially circular convex skimming surface adapted to skim upon the water as the craft moves at low speed, wherein the discs are mounted to the hull such that the skimming surface of each disc faces downwardly with respect to the longitudinal central axis of the hull, and adapted for movement between a low speed orientation in which the discs present a portion of the circular convex skimming surface to the water surface and a high speed orientation in which the discs present a portion of the edge of the disc to the water. | 09-03-2009 |
| 114280000 | Having means to tilt or reposition foil or foil adjunct | 7 |
| 20110315063 | HYDROFOIL BOAT STABILIZER - A hydrofoil boat stabilizer having a cross-sectional area with the configuration of a true hydrofoil is provided. The hydrofoil includes a slip-on yoke designed to compressively fit on a cavitation plate of a boat motor lower drive unit. The wings of the hydrofoil include at least one angle of attack, and preferably, a plurality of angles of attack. The hydrofoil is shaped to reduced drag and minimize cavitation. A low-drag surface is included on at least a portion of the outer surface of the hydrofoil. | 12-29-2011 |
| 20120186507 | TOWABLE BUOY - A towable buoy having a tow point for connection to a tow cable of a vessel, wherein the position of the tow point is translationally moveable with respect to the remainder of the buoy. Also, a method of operating the towable buoy. | 07-26-2012 |
| 20120255479 | HYDROFOIL ARRANGEMENT - The invention relates to a hydrofoil arrangement for a hydrofoil craft with at least one fully submerged lifting wing. The hydrofoil arrangement includes at least two struts pivotally arranged on the hydrofoil craft with each strut being connected to a lifting wing. The struts are arranged with their centers of effort of hydrodynamic forces behind the pivot axes of the struts during forward travel of the hydrofoil craft. They are arranged to pivot relative to the hydrofoil craft when the hydrofoil craft experiences a disturbance in roll-angle. This results in a transversal movement of the hydrofoil craft relative to the water surface during forward travel. The hydrofoil arrangement also increases the roll-stability for a hydrofoil craft. | 10-11-2012 |
| 114281000 | Steerable foil | 1 |
| 20120006248 | WATERCRAFT STEERING SYSTEM - A steering system for hydroski-borne watercraft eliminates the need for conventional steering mechanisms such as rudders or thrust vectoring from propulsion units. Complete steering and navigable control is achieved by rolling or otherwise banking individual hydroskis thereby creating a side force on each hydroski. This force is proportional to the sine of the bank angle or roll angel. The sum of the forces and moments from the individual hydroskis are of sufficient magnitude and can be appropriately balanced to effect coordinated watercraft steering and navigable control. | 01-12-2012 |
| 114282000 | Having means to move foil to a retracted nonuse position | 3 |
| 20130081565 | TRIMARAN HAVING A PIVOTABLE OUTRIGGER - To a watercraft which includes a main hull and at least one outrigger which is fastened in a height-adjustable manner to the main hull. | 04-04-2013 |
| 20090013917 | RETRACTABLE HYDROFOIL FOR MARINE VEHICLES - A marine vehicle with at least one hydrofoil at the lower hull of such marine vehicle, and at least one drive element for retracting a pair of hydrofoils mounted side-by-side on both sides of the symmetry axis of the hull of the marine vehicle. When hydrofoils are in the retracted position, the marine vehicle is converted to a conventional marine vehicle. | 01-15-2009 |
| 20110168076 | WATER WINGS DEVICE FOR A WATERCRAFT - The present invention is a water wings device used in combination with a watercraft that includes a plurality of water wings attached to the sides of the watercraft with attachment arms and directing fins that are placed into the water that the watercraft is traveling in. There is also an embodiment of the water wings device that includes a boat tail with a tapering protrusion that is placed into the water the watercraft is traveling in. Another embodiment is the water tail device that includes a plurality of water tails that attach to the rear of portion of a watercraft used in conjunction with water wings on the side of the watercraft that are all placed into the water the watercraft is traveling in. | 07-14-2011 |
