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| Number | Title | Issue Date |
| 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 floating member and parallel with the longitudinal fin. Thus, the nautical... | 10/30/2007 |
| 7198000 | Shock limited hydrofoil system A hydrofoil craft includes a hull having a longitudinal axis, a pylon secured to and extending beneath the hull and a lifting foil secured to the pylon. The lifting foil has an upper surface and a lower surface. The upper surface of the lifting foil is substantially... | 04/03/2007 |
| 7191725 | Bow lifting body A watercraft having a hull, a fore and aft longitudinal axis and a bow includes a three dimensional low drag submerged lifting body secured to the bow below the design waterline of the hull. ... | 03/20/2007 |
| 7192323 | Stabilizer device A low profile stabiliser device for attaching to the under surface of a watercraft, typically a surfboard or a boat, including in combination a plurality of stubby keel members joined by one or more transverse members spaced from the bottom surface of the watercraft... | 03/20/2007 |
| 7143710 | Low drag ship hull A low drag ship hull generally includes a side air cavity initiated by wetted bow section, bottom air cavity initiated by wetted bottom nosepiece, wetted stem section that closes a lower portion of the side cavity, wetted bottom tailpiece that closes the bottom cavi... | 12/05/2006 |
| 7059259 | Wing in ground effect vehicle with endplates A Wing In Ground Effect Vehicle has a pair of supercavitating endplates (17) which extend below the fuselage (2) such that they can be immersed in water during flight thereover. The endplates have a nose (28) defining a leading edge (20) ... | 06/13/2006 |
| 7040244 | Watercraft having plural narrow hulls and having submerged passive flotation devices A watercraft has at least two narrow hulls with a shallow draft and has one or more passive flotation devices that are entirely submerged. The hulls enclose the power trains for the watercraft and are accessible from the compartments of the watercraft. The passive f... | 05/09/2006 |
| 7014142 | Low-drag rotor/wing flap Rotor/wing aircraft having a low-drag flap are disclosed. In one embodiment, a rotor/wing aircraft includes an elongated blade having a body portion and a flap portion. The body portion has first and second edges and includes a non-symmetric portion proximate the se... | 03/21/2006 |
| 7004093 | Low drag submerged asymmetric displacement lifting body Low drag underwater submerged lifting bodies which can be used as underwater displacement portions of a vessel whose main hull is at sea level are asymmetrical and have improved lift to drag ratios. The lifting bodies have outer surfaces whose shapes are defined in ... | 02/28/2006 |
| 6994394 | Automobile body performing decreased aerodynamic lift Automobile body performing with reduced aerodynamic lift while speeding, and therefore having its fuselage shape of a parallelogram with acute angle. The fuselage is made with roof projected straight backward and also having its body rear plate, slanted upward towar... | 02/07/2006 |
| 6966271 | Waveless hull A vessel hull that does not create bow, stern, or transverse waves when moving through the water having an exterior surface that has a substantially constant cross-section along the length of the hull, and an interior surface that substantially encloses a flow chann... | 11/22/2005 |
| 6912967 | Hybrid watercraft A watercraft steered under power by water-jet propulsion utilizes a water intake ramp in its hull to create a nozzle-like effect to accelerate water loading to the jet pump through a ventral water inlet when under power. The hull has a pair of longitudinal stabilize... | 07/05/2005 |
| 6901873 | Low-drag hydrodynamic surfaces The invention relates to the use of gas cavities to reduce frictional drag on underwater surfaces such as hydrofoils, struts, fins, rudders, keels, propeller blades, ship hulls, underwater bodies, and wetted surfaces in general. Each gas-filled cavity is formed behi... | 06/07/2005 |
| 6439148 | Low-drag, high-speed ship The invention is gas-filled cavities that reduce drag on the underwater surfaces of marine vehicles. Hydrofoils, struts, boat and ship hulls, pontoons, underwater bodies, fins, rudders, fairings, protuberances, submarine sails and propulsors are underwate... | 08/27/2002 |
| 6278904 | Floating robot A floating device is provided, which allows an entire robot main body to float at a site. Mounted on the floating device are an image sensor which captures image data of persons around the robot main body; an information processing device which recognizes... | 08/21/2001 |
| 6167829 | Low-drag, high-speed ship The invention is gas-filled cavities that reduce drag on the underwater surfaces of marine vehicles. Hydrofoils, struts, boat and ship hulls, pontoons, underwater bodies, fins, rudders, fairings, protuberances, submarine sails and propulsors are underwate... | 01/02/2001 |
| 5601047 | Dualcavitating hydrofoil structures for multi-speed applications A hydrofoil structures for efficient operation over a wide speed range from subcavitating to supercavitating operation is provided. The dualcavitating hydrofoil overcomes cavitation problems associated with high speed operation of prior art subcavitating ... | 02/11/1997 |
| 4989533 | Support strut for hydrofoil craft A supporting strut for a hydrofoil type of watercraft that also incorporates a water inlet for a jet propulsion unit. In accordance with the invention, the strut has a generally triangular configuration and a smooth transition from the lower water inlet e... | 02/05/1991 |
| 4974539 | Integrated propulsion and hydrofoil system A pair of integrated water propulsion and hydrofoil systems capable of moving through water at speeds of at least 20 miles per hour are disclosed, each hydrofoil system having a hydrofoil and a mounting leg removably secured to a water propulsion system. ... | 12/04/1990 |
| 4862820 | Propulsion and lift system for speed boats with submerged foil The invention relates to a propulsion and lift system for speed boats with a submerged foil. According to the invention, foil (4) includes main lifting surface (11) and hinged trailing edge aileron (12) as well as components (14, 25; 15, 16) to inject gas... | 09/05/1989 |
| 4756265 | High speed boat lifting structures A thrust collar is disclosed for mounting around the upper portion of the propeller of an inboard/outboard engine. Each thrust collar supports a horizontal hydrofoil wing extending laterally from the collar. A second, similar wing can be provided on an op... | 07/12/1988 |
| 4387869 | Mono-element combined supercritical high lift airfoil A multi-purpose mono-element airfoil is disclosed for aerodynamic and hydrodynamic vehicles and devices. The multipurpose mono-element highlift airfoil when utilized in an aerodynamic application provides a combined no-moving-parts high lift and cruise ai... | 06/14/1983 |
| 4335671 | Flap leading edge for hydrofoil vessels and the like An improved leading edge contour for control flaps of the type suitable for use with hydrofoil vessels and the like wherein discontinuities or gaps between the leading edge of the flap and the trailing edge of the fluid foil to which it is attached are he... | 06/22/1982 |
| 3968762 | Triple hybrid watercraft A watercraft combining the physical and hydrodynamic features of a catama, a hydrofoil, and a rigid sidewall air cushion vehicle that might be considered a triple hybrid (TRIBRID). The TRIBRID is intended to operate as a multi-modal vehicle in the approx... | 07/13/1976 |
| 3936013 | Vortex control This invention is for wings of all types, such as fixed wings for aircraft and hydrofoil boats, and rotary blades (or wings) for helicopters and turbines, to be equipped with a slotted tube, or a tube with series of holes extending outwardly in the spanwi... | 02/03/1976 |