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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...
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...
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...
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.
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
6739925 Hydrodynamic device  
A hydrodynamic device for use with a recreational water vessel such as a surfboard, disrupts a flow of water under the recreational water vessel. A channel member ( 12 ) and a fixing device ( 14 )...
6701862 Bow mounted system and method for jet-propelling a submarine or torpedo through water  
A jet propulsion system for a submersible vehicle, such as a submarine includes a propulsion unit mounted away from the stern of the submersible. Generally, the propulsion system consists of a set...
6698370 Hydrodynamic and supportive structure for gated ship stern  
A dualistic stern-appendant device comprises, in integrated form, at least two gate-supportive bodies and at least one flap-hydrodynamic body. The device is characterized by an alternating...
6684807 Smith Moses hydro lift flaps  
The flaps ( 101 ) are fastened to the bottom of the boat, with hinges ( 122 ) and are extended under the moving boat to generate lift or cause drag. The area of the flaps ( 101 ) can be increased...
6647910 Wave shock absorber system  
This 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...
6644894 Passive apparatus and method for reducing fluid induced stresses by introduction of energetic flow into boundary layer around structures  
The use of fluid passages for structures in fluid environments such as offshore platform risers or spars to reduce and/or control vortex-induced vibrations and drag is disclosed. The use of fluid...
6634309 Device for reducing the resistance to the advancement of a motorboat on water  
A device for reducing the resistance to the advancement on water of a motorboat ( 1 ), including a keel ( 2 ), on the underside of which at least one step ( 3 ) is provided; projecting element ( 6...
6609473 High speed modular sea base  
A high-speed modular platform has an upper level section having gas turbines on it for propulsion, and a lower level section has a lower periphery having a flexible skirt system connected to it to...
6604484 Ship supported by submerged structure  
A high efficiency extremely stable marine vehicle that is connected to and supported by submerged supporting structure(s) is presented. The submerged structure(s) are normally airfoil shaped to...
6551029 Active apparatus and method for reducing fluid induced stresses by introduction of energetic flow into boundary layer around an element  
Discharge of fluid into or suction of fluid from the boundary region around such structures as offshore marine elements and moored marine vessels to reduce fluid current induced stress to marine...
6520455 Method and apparatus for reducing turbulent drag  
The systems and methods of the invention include systems and techniques for controlling a turbulent boundary layer flow with a transverse traveling wave, oscillating at certain selected...
6508188 Drag-free hull for marine vessels  
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...
6415730 Dimpled marine seismic fairing  
An apparatus and method for improving the efficiency of marine cable tow operations. Indentations such as dimples in the exterior surface of cable fairings reduce cable strumming and reduce...
6349664 Vibration and drag reduction system for fluid-submersed hulls  
A system for reducing hydrodynamic drag and vortex-induced-vibration (“VIV”) in a bluff hull. In a bluff hull that is designed to be at least partially submerged in a fluid, such as water, the...
6220549 Method and apparatus for fabricating panels used for the active control of surface drag  
Improved methods and techniques for fabricating a panel of control cells, or a "control panel", useful in various electromagnetic turbulence control (EMTC) applications includes a layered structure...
6135043 Silicon MEMS-based polymer ejector for drag reduction of undersea vehicles  
A polymer ejector system for reducing drag on an external surface of an urwater vessel includes a base portion mounted in an exterior surface of the underwater vessel, the base portion including an...
6116176 Drag reduction assembly for use with a boat hull  
A drag-reduction system incorporated within an inwardly stepped underside of a boat hull for reducing a degree of water pressure forces exerted upon the boat hull during travel of the boat upon a...
6096430 Robust, nontoxic, antifouling polymer  
A robust, nontoxic, antifouling coating and bulk material and process for king the same are disclosed. The antifouling coating comprises a basecoat formed typically from a polyol and a...
6079345 System and method for controlling the flow of a conductive fluid over a surface  
Magnetic and electric fields are used in a controlled manner to create Lorentz forces that affect the flow of a conductive fluid near the boundary layer of a control tile, or a matrix of control...
6024119 Flow control system having actuated elastomeric membrane  
A flow control system is used to control fluid flow at the boundary layer an object or body about or within which the fluid flows relative to the body. The flow control system includes an actuated...
5997369 Human powered marine vehicle and method for the operation thereof  
A human powered marine vehicle is provided having a rigid front section and a flexible rear section which may be flexed at at least two point therealong. The arms and/or legs of one or more persons...
5890681 Method for controlling microturbulence  
A method for controlling microturbulence in a medium flowing near a surface s disclosed. The method includes the steps of measuring the forces acting near or on the surface and using those...
5820737 Anti-fouling laminate marine structures  
A marine structure submersible in seawater, such as a hull, which when electrically activated is then resistant to fouling by marine organisms. The hull is formed by a structural laminate having a...
5791275 Surface layer comprising micro-fabricated tiles for electromagnetic control of fluid turbulence in sea water  
A surface layer for use in connection with an object adapted for motion tugh a fluid includes an array of tiles each having a pair of electrodes and a pair of magnetic poles positioned to generate...
5769019 Protective covering for outdoor structures  
A method of protecting a hull of a marine craft from adhesion of marine growths and inorganic deposits includes a step of applying protective covering sheets to the hull in a pattern that provides...
5740750 Method and apparatus for reducing drag on a moving body  
A method and apparatus for providing reduced drag on a body moving in a direction D through a selected fluid medium at a speed U which is normally sufficient to cause turbulence. Reduced drag is...
5735226 Marine anti-fouling system and method  
A marine anti-fouling system and method for inhibiting the growth of marine life on a submerged surface includes a control box and a number of transducers. The control box further includes a...
5618215 Aquatic sports board  
An improved aquatic sports board is provided. The rail of the board is equipped with a plurality of apertures which are arranged in a pattern along the length of the rail. The apertures serve to...
5603278 Buoyant test vehicle polymer ejection nose assembly  
An underwater vehicle has a generally cylindrically portion with boundary yer polymer fluid storage and a pressurizing source provided therein, and a nose portion secured to the cylindrical portion...
5570650 Surface effect vessel hull  
A surface effect hull particularly suitable for use with a catamaran vessel. The twin hulls each comprise a V-shaped portion and a recess portion that receives pressurized gas therein. The V-shaped...
5566634 Ship's stem duct with airfoil section  
A stem duct of a ship used to achieve the reduction of the ship's propulsion wave height and the improvement in the laminarity of the flow around the ship's bow, so that the ship is able to move...
5535691 Spray suppressor for air cushion craft  
A spray suppressor for an air cushion vehicle comprising inflatable loop elements fixed to the air cushion seal finger sleeves and positioned immediately outward from the air cushion boundary. The...
Matches 1 - 50 out of 329 1 2 3 4 5 6 7 >