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| Number | Title | Issue Date |
| 8020504 | Structural component for producing ship hulls, ship hulls containing the same, and method of manufacturing the same A structural component for a ship hull has a metal element, an electro-conductive element, and a non-conductive element which disconnects the metal element from the electro-conductive element so as to prevent an electrical contact of the electro-conductive element w... | 09/20/2011 |
| 7806064 | Friction reducing pollution control system for marine vehicles An exhaust redirect line in communication with an engine exhaust channel of a marine vehicle receiving exhaust gas. A blower unit in the exhaust redirect line directing the exhaust gas through the exhaust redirect line. A mixing chamber in communication with the exh... | 10/05/2010 |
| 7654211 | Marine vessel transfer system A vessel transfer system utilizes a larger, surface effect vessel with a hull and a cargo deck, having a pressurized volume of air under its hull. The larger vessel cargo deck is lowered relative to a water surface in order to receive a smaller vessel. Lowering is a... | 02/02/2010 |
| 7540249 | Acceleration system for link belt-mounted ship An acceleration system for a link belt-mounted ship includes; water wheels, rotating shafts mounted through the water wheels, link belts surrounding the water wheels and formed at an outer peripheral surface thereof with hook-shaped blades, ball bearing units mounte... | 06/02/2009 |
| 7455021 | Method and apparatus for controlling friction between a fluid and a body A method and apparatus is disclosed wherein nanostructures or microstructures are disposed on a surface of a body (such as a submersible vehicle) that is adapted to move through a fluid, such as water. The nanostructures or microstructures are disposed on the surfac... | 11/25/2008 |
| 7412938 | Structured surfaces with controlled flow resistance An apparatus comprising a substrate having a surface configured to accommodate a fluid thereover. A plurality of fluid-support-structures are on the surface. Each of the fluid-support-structures has at least one dimension of less than one millimeter. A well in the s... | 08/19/2008 |
| 7357442 | Post pressurizing material treatment for bodies moving through fluid A post pressurizing material is preferably embodied in a layered system of gridwork in the form at least two back-to-back screens which can be attached to the rear surface of a body with a peripheral border around the screens. The screens have the ability to entrap ... | 04/15/2008 |
| 7347154 | Amphibious craft The present invention relates to an improved amphibious craft or vehicle and, in particular, but not exclusively, to a craft or vehicle that may be used for commercial and rescue tasks in a great variety of weather conditions. To achieve this, an amphibious vehicle ... | 03/25/2008 |
| 7322865 | Belt drive propulsion system An apparatus and method for providing propulsion to naval vehicles by using one or more suspended belt drives to consistently engage the water proximate to the surface using a variety of belts with multiple attachments, tires, or variable lugs. The drive belt system... | 01/29/2008 |
| 7318619 | Method and apparatus for reducing drag and noise for a vehicle A body part including a surface having a fluid flow thereover. The body part also includes flocking coupled to at least a portion of the surface that adjusts an aerodynamic characteristic relative to the surface that is devoid of the flocking. ... | 01/15/2008 |
| 7300323 | Linear actuator for flapping hydrofoil A linear actuator is provided that converts linear motion to oscillatory motion. The linear actuator includes flats, a hinge, and linear actuators. A hydrofoil is mountable on a spindle attached to the hinge. In operation, a linear push direction by the linear actua... | 11/27/2007 |
| 7287540 | Method for introducing drag reducers into hydrocarbon transportation systems Disclosed is a method of reducing drag in a fluid stream. The method includes admixing the components of a drag reducer to form an incipient drag reducer and injecting the incipient drag reducer into the fluid stream wherein the drag reducer components are admixed a... | 10/30/2007 |
| 7219614 | Apparatus and method for reducing fluid drag on a submerged surface An apparatus and method for reducing surface friction drag on the hull of a surface vessel by entraining air into water flowing in the boundary layer flow along the hull. A hemispherical protrusion creates flow separation by diverting a portion of the water flow awa... | 05/22/2007 |
| 7204196 | Powered boat hull A hydrofoil craft, particularly a method of economically modifying a conventional hull with cambered foils to obtain and calculate increased lift from dense spray and to achieve enhanced craft performance is disclosed. The present invention improves speed, fuel effi... | 04/17/2007 |
| 7194973 | Air cushioned rotatable platform A fluid cushioned platform adapted to float on a body of liquid. The platform includes a deck having upper and lower surfaces and a lower peripheral member extending around the outer perimeter of the deck. A pump having a pump outlet is supported by the deck. A fill... | 03/27/2007 |
| 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 |
| 7191721 | Innovative hull-less naval vessel A hull-less naval vessel includes a platform completely raised from the liquid medium by of rotating floating elements fixed beneath the platform by of ball bearings. Through the lifting effect of the floating elements, the vessel will glide on the liquid surface wi... | 03/20/2007 |
| 7156032 | Method and apparatus for controlling friction between a fluid and a body A method and apparatus is disclosed wherein nanostructures or microstructures are disposed on a surface of a body (such as a submersible vehicle) that is adapted to move through a fluid, such as water. The nanostructures or microstructures are disposed on the surfac... | 01/02/2007 |
| 7150434 | Vehicle wake vortex modifier Wake vortices are made less detectable or reduced in their effect on nearby vehicles by re-orientation of vorticity about an axis in the direction of vehicle motion to transverse vorticity interacting with the longitudinal vorticity. The re-orientation may be by a f... | 12/19/2006 |
| 7146919 | Wave diffuser apparatus and method A wave diffuser apparatus and method includes, according to one embodiment, a receiver base and a wave disrupter conformed to attach to the receiver base. A load collar is attached to the wave disrupter and a load applicator is attached to the load collar. ... | 12/12/2006 |
| 7117807 | Dynamically modifiable polymer coatings and devices A dynamic coating includes at least one polymeric layer for attachment to a surface. The polymeric layer includes at least one electrically conducting polymer including layer, wherein under influence of a dynamic signal applied to the polymeric layer, a contact angl... | 10/10/2006 |
| 7111570 | Dynamic surface element for bodies moving through a fluid A dynamic surface element is located on a substantially smooth surface of a body moving through a fluid for improving the movement of the body. The dynamic surface element includes a lower wall provided on the surface of the body, the lower wall having a front edge ... | 09/26/2006 |
| 7108457 | System and method for reducing drag and vortex induced vibration in marine applications A marine riser that includes active boundary-layer control (“BLC”) for reducing hydrodynamic drag and vortex-induced-vibration (“VIV”) caused by currents. The marine riser includes at least one riser pipe surrounded by a BLC sheath. Extending through the she... | 09/19/2006 |
| 7059260 | Steering control by means of selected segmented drag reduction A steering system is provided for a hydrodynamically shaped vehicle having a nose end, a tail end, and forward propulsion. The steering system includes an internal supply of drag-reducing medium, at least one ejector ring positioned adjacent a nose end of the vehicl... | 06/13/2006 |
| 7055329 | Method and apparatus for noise attenuation for gas turbine engines using at least one synthetic jet actuator for injecting air A method enables a gas turbine engine to be operated. The method comprises channeling exhaust gases from a core engine through an exhaust assembly and past at least one flow boundary surface, and selectively operating a noise suppression system extending from the at... | 06/06/2006 |
| 6994045 | Superhydrophobic coating This invention solves the problem of reducing the fluid friction resistance accompanying relative movement of surfaces of a solid and a liquid. A superhydrophobic coating acting as a substrate for a gaseous lubricant of very low viscosity, reducing the fluid skin fr... | 02/07/2006 |
| 6983708 | Amphibious marine vehicle Presented in an advanced amphibious marine vehicle that incorporates retractable land drives for operation over beaches or other hard surfaces. In the preferred embodiment, the land drives retract into hull recesses when the vehicle is waterborne so as not to add wa... | 01/10/2006 |
| 6981461 | Amphibious high speed marine vehicle Presented in an advanced high speed air cushioned marine vehicle that incorporates retractable land drives for operation over beaches or other hard surfaces. The land drives retract into air cushion hull recesses when the vehicle is waterborne so as not to add water... | 01/03/2006 |
| 6973890 | Self-adaptive system for an apparatus which inhibits fouling of an underwater surface A system is provided which automatically calibrates a marine fouling prevention system. It responds to movements between fresh and saltwater bodies of water, detects damage to the hull or other submerged surface, and responds to the use of the fouling prevention sys... | 12/13/2005 |
| 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 |
| 6964540 | Variably adjustable watercraft ramp The watercraft ramp comprises a frame and a plurality of hull-support assemblies mounted thereon. The frame has a pair of elongated channel rails held in laterally spaced condition. Each rail has a longitudinally aligned internal recess and a longitudinally aligned ... | 11/15/2005 |
| 6959958 | Aerodynamic combination for improved base drag reduction An improved method and device for reducing the base drag of bluff bodies, including large boxy highway vehicles such as semi-trailer trucks, which uses low drag vortex generators in combination with either a trailing panel or shortened boattail plates, to provide gr... | 11/01/2005 |
| 6957620 | Self-generating air cushion vessel A drag-reducing air chamber is formed under a watercraft when the watercraft is underway. Air enters into the air chamber when the watercraft is moving forward. Supplemental air is introduced into the air chamber by an air scoop mounted to the bow in a first embodim... | 10/25/2005 |
| 6951179 | Boiling heat transfer surface A system to create and maintain a gas/vapor cavity about a hull surface includes a fence selectively extendable above and below the hull surface. A gas venting means is positioned beneath the hull surface downstream from the fence. The vented gas can be used to crea... | 10/04/2005 |
| 6925952 | Anti-fouling laminate for boat hulls A thin laminate for application to a submerged object, such as a boat hull, to provide anti-fouling protection to the object. The laminate comprises a first layer of a transfer adhesive, a second strengthening layer of a plastic or synthetic rubber film, a third lay... | 08/09/2005 |
| 6907326 | Autonomous surf zone line charge deployment system A system and method autonomously clears obstacles and mines from an approach lane. A ship is distantly located from an approach lane spanning a surf zone and beach portion, and the ship has operator control station software in an onboard computer. At least one syste... | 06/14/2005 |
| 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 |
| 6880477 | Wave shock absorber system The invention relates to methods for absorbing impacting shock loads from waves on marine hulls by using a diffuser to provide a reduced impact zone forward of the hull and to divide the wave and cause the non-compressible liquid of the wave to mix with air in the d... | 04/19/2005 |
| 6880476 | Recesses on a surface Formations on the surface of bodies for reducing the drag relative to a medium which the body is located in or close to. The formations comprise a plurality of cavities (1,20,40,60). The surface in which the cavities are formed is closed. The cavity has a dis... | 04/19/2005 |
| 6769373 | Attachable bow plate for reducing bow sinkage and vessel drag An attachable vertical bow plate set a distance ahead of the existing bow, preferably extending above and below the water surface, helps to reduce drag associated with a vessel. The plate's lower edge is preferably set at a depth corresponding to the depth where the... | 08/03/2004 |
