Abstract: A marine vessel comprising: at least one buoyant tubular foil; at least one venturi injection ring positioned adjacent to the perimeter of the at least one buoyant tubular foil so as to create a passageway between the at least one venturi injection ring and the perimeter of the at least one buoyant tubular foil, wherein the passageway is characterized by a fore opening, an aft opening, and an intermediate opening disposed between the fore opening and the aft opening, and wherein the intermediate opening is smaller than the fore opening and the aft opening; at least one fluid opening formed in the perimeter of the at least one buoyant tubular foil adjacent to at least one of the intermediate opening and the aft opening; and at least one passageway connecting the at least one fluid opening to a source of fluid.

Abstract: A watercraft device includes a central body and of two lateral hulls. Each lateral hull is connected to a central body by at least one connecting arm, so that the central body is in a raised position relative to two lateral hulls, the connecting arms having a given inclination to the vertical plane of the watercraft device. The two lateral arms and the central body are oriented with their longitudinal axes, i.e. the bow to stern axes, parallel to each other. Each of the two lateral hulls includes a body having a substantially cylindrical symmetry, with an annular constriction between the fore and the aft main sections of the lateral hulls.

Abstract: An offshore wind turbine installation vessel, wherein the wind turbine is of the type to be installed on a foundation that is installed on the seabed prior to the installation of the wind turbine on the foundation, wherein the wind turbine is of the type with a vertical mast to be fitted with its lower end onto the foundation, wherein the vessel includes a non-jack-up type floating hull; and a crane structure extending upward from said hull. The crane structure is provided with a hoisting device having one or more wind turbine suspension elements and a wind turbine engagement device supported by the suspension elements and adapted to engage with said wind turbine. The hoisting device is adapted to support and to raise and lower in controllable manner at least the mast of the wind turbine while in vertical orientation.

Abstract: A marine vessel comprising: a command module; first and second buoyant tubular foils; and first and second struts for connecting the first and second buoyant tubular foils to the command module, respectively; wherein the first and second buoyant tubular foils provide substantially all of the buoyancy required for the marine vessel; and wherein the marine vessel further comprises first and second engines enclosed within the first and second buoyant tubular foils, respectively, and first and second propulsion units connected to the first and second engines, respectively, for moving the marine vessel through the water.

Abstract: New design of vessel with submersible hulls which can transport large cargos at high speed sailing above the waves and which is made up of two parallel submerged bodies (4), clearly cylindrical in cross-section or as hydrodynamic as possible, joined by hydrodynamic profiles (5). Four hydrodynamic legs (3) are located in the confluence between the cylinders (4) and the profiles (5) capable of supporting a platform or loading zone (2) which can move (up or down) on the legs (3) which have a system of vertical displacement so as to raise itself above the level of the waves. The parallel bodies of submerged displacement (4) joined to the hydro-dynamic profiles (5) can be completely covered with a textile of permeable sheets of porosity less than the size of a molecule of water and greater than that of a molecule of air and air can be pumped into the interior.

Abstract: An offshore wind turbine installation vessel, wherein the wind turbine is of the type to be installed on a foundation that is installed on the seabed prior to the installation of the wind turbine on the foundation, wherein the wind turbine is of the type with a vertical mast to be fitted with its lower end onto the foundation, wherein the vessel includes a non-jack-up type floating hull; and a crane structure extending upward from said hull. The crane structure is provided with a hoisting device having one or more wind turbine suspension elements and a wind turbine engagement device supported by the suspension elements and adapted to engage with said wind turbine. The hoisting device is adapted to support and to raise and lower in controllable manner at least the mast of the wind turbine while in vertical orientation.

Abstract: A multi-hulled vessel for upward ice-breaking is disclosed. The vessel has side hulls that are at least partially submerged while the vessel is underway. The side hulls each have a ridge on their upper surface. To break through ice at sea, the side hulls are positioned under the ice and the trim is adjusted for an upward trim angle. As the vessel moves forward, the ice is lifted and force concentrates along the ridge on the side hulls. The ice breaks along this force concentration, aided by the weight of the ice itself.

Abstract: A vertical translation mechanism for reconfiguring the hull form of a reconfigurable vessel having independently movably side hulls and a center hull is disclosed. The vertical translation mechanism includes a hydraulic-force actuator and a nonmetallic bearing. The hydraulic force actuator comprises a rod that is disposed within a hydraulic cylinder. Responsive to changes in hydraulic pressure in the cylinder, the rod is extended or retracted therefrom. Movement of the rod controls the vertical translation of the center hull and its rotational attitude relative to the side hulls.

Abstract: 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 transport vehicle is immersed in the water stably to form a balance support, so that the ship mounted on the nautical transport vehicle is flush rested on the water surface smoothly to obtain tension and buoyancy efficiently.

Abstract: 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 flotation devices do not include a power train or any other equipment requiring access from the compartments of the watercraft. The narrow, shallow draft hulls have low friction drag and produce a small bow wave. Thus, the watercraft is able to be propelled rapidly, to be propelled for a greater distance, and to be propelled efficiently by the power provided by smaller motors and lighter energy sources.

Abstract: A seagoing vessel having a length of between 45 and 175 meters and designed to operate at speeds of between 25 and 70 knots, the vessel comprising a single main hull with stabilising amahs positioned on either side, wherein the hydrostatic value of GM determined in the transverse plane lies between 0.5 and 5 meters, the vessel being shaped above the designed waterline such that the righting lever (GZ) curve as the vessel heels meets the following requirements: the area (b) bounded by the GZ curve plotted on the heeling axis between the angle of flooding and the heeling lever associated with a specific gust of wind is greater in value than the area (a) bounded by the GZ curve plotted on the heeling axis between the heeling lever associated with the specific gust of wind and an angle associated with the amount of roll of the vessel to windward under the action of the waves.

Abstract: A Small Waterplane Area MultiHull non-motorized vessel having an upper hull platform located above the design water line of the vessel which is maintained above the surface of a body of water by at least two cylindrical submerged hulls joined thereto by supporting struts. A buoyant core material is contained between inner and outer walls of the submerged hulls which define a cylindrical space in which a rotary propulsive means may be housed. In one embodiment, an engine means is situated . . . means to provide a propulsive force.

Abstract: A hydrofoil craft using a novel propulsive system able to greatly reduce wave making resistance at a sailing time is provided. Therefore, a semi-submergence type hydrofoil craft has a craft main body having a water surface craft body located above the water surface at the sailing time, an underwater craft body located below the water surface, and one or plural struts vertically connecting these craft bodies. The above underwater craft body has a water suction port opened to suck water from a front face of the underwater craft body, a propeller for sending-out the sucked water backward, at least one water injection port opened to inject the water sent-out from the propeller backward, at least one water sending passage extending from the rear of the propeller to the at least one water injection port, and at least one pair of wings projected from both side faces of the underwater craft body.

Abstract: A reduced drag marine vessel providing a mechanism that will reduce or even eliminate the drag along the water-solid interface at the hull of the marine vessel. This mechanism is made up of a revolving elastic shell which is similar to a donut shaped belt. This belt forms an interior volume which houses rollers and a framework to support the tubular belt which can be further inflated with a gas to counter the hydraulic pressure of the water outside. Finally, this belt may be housed within a rigid outer tubular shell and contain a propeller within its center so as to form a marine nozzle.

Abstract: A Small Waterplane Area MultiHull vessel having an upper hull platform located above the design water line of the vessel which is maintained above the surface of a body of water by at least two cylindrical submerged hulls joined thereto by supporting struts. A buoyant core material is contained between inner and outer walls of the submerged hulls which define a cylindrical space in which a rotary propulsive means may be housed. In one embodiment, an engine means is situated on the upper hull platform and is joined to the rotary propulsive means through a work translating means which converts the output of the engine to rotary motion of the rotary propulsive means to provide a propulsive force.

Abstract: 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 a specified person based on the image data captured by the image sensor, calculates a position of the specified person, and outputs a control signal for moving the robot main body toward the position of the specified person; a propulsion device which moves, based on the control signal, the entire robot main body to a close position close to the specified person so that the robot main body can be seen by the specified person; and an image display device, which displays image information useful for the specified person using the site when the robot main body reaches the close position. The information can be supplied to a specified object in a bi-directional fashion.

Abstract: New electric boat designs are provided that exploit the weight of a battery to stabilize the boat and in some cases to overcome the hull speed limitation problem. The battery mass is enclosed in one or two torpedo-like structures that are mostly or completely submerged. A platform is spaced above the torpedo(s) via one or more struts that may allow wave energy to pass through the watercraft rather than collide with large vertical surfaces. The design minimizes wake formation, wave sensitivity and is useful for new kinds of electric boats that can dive with an air bubble to allow submarine use, higher speed pleasure craft, and sailing craft that can remain stable in shallow draft waters. The stabilized watercraft optionally have computer monitoring of wave activity and control for greater resistance to adverse weather conditions.

Abstract: A small waterplane area multihull (SWAMH) vessel having an upper hull platform located above the design water line of the vessel which is maintained above the surface of a body of water by at least two cylindrical submerged hulls joined thereto by supporting struts. A buoyant core material is contained between inner and outer walls of the submerged hulls which define a cylindrical space in which a rotary propulsive means is housed. An engine means is situated on the surface platform and is joined to the rotary propulsive means through a work translating means which converts the output of the engine to provide a propulsive force.