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8201512 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...
8166898 Wind-powered personal hydrofoil watercraft  
A personal wind-powered hydrofoil watercraft having a sail supported by a mast coupled to a buoyant body, where the mast is tiltable forward and backward but not side to side, in order to prevent...
7568443 Boat rudder with integrated dynamic trim foils  
A rudder and dynamic trim adjusting apparatus for a boat includes a rudder, a rudder shaft extending from the rudder and being rotatable about a longitudinal axis thereof to rotate the rudder,...
7047901 Motorized hydrofoil device  
A motorized hydrofoil water craft that has a substantially horizontally disposed flotation device that may be configured to receive an adult human in a prone, sitting or standing position. The...
6748893 Foil system device for vessels  
There is disclosed a foil system for hydrofoil vessels, where the foil system lifts and carries the total weight of the craft at speed, and comprising a number of adjustable control fins/-surfaces...
5697317 Hydro ski  
A water craft having a motorcycle suspension which makes the craft more maneuverable and, therefore, safer to ride especially over rough and choppy water at high speeds. It also has plural...
5329870 Watercraft with vertically movable hydrofoils  
A watercraft employs three or more supercavitating hydrofoils. The elements that connect the hydrofoils to the hull may flex to thus raise or lower the hydrofoils relative to the hull. The...
5285742 Sail powered vehicle  
A wind powered vehicle including an operator platform having tilting and stationary sections coupled together via a plurality of hanger bearings and a longitudinal pivot axle. The platform section...
4972792 Lateral stabilization device for entirely submerged type hydrofoil craft  
A stabilizing device for a hydrofoil type watercraft embodying a fully submerged hydrofoil. A flywheel is supported for precessive effect and is operatively connected to the steering shaft for...
4711195 Hydrofoil apparatus  
A hydrofoil apparatus for attachment to a marine vessel having a first pivot means for positioning the rotational axis of a gooseneck shaft parallel to the yaw axis of the hull and a trailing load...
4617871 Steerable wind-powered vehicle  
The present invention concerns a steerable wind-powered vehicle, which comprises a base supported on at least two wheels, skis, skates or hydrofoils, at least one of the wheels, skis, skates or...
4356786 Hydrofoil boat  
An improved utility class hydrofoil boat having an integrated hydrofoil suspension and steering system wherein pairs of foils may be inclined at various angles, to the lateral axis of the boat,...
4228750 Hydrofoil sailboat with control tiller  
A hydrofoil sailboat having a sailing frame that is secured by swivel connection to a conventional hull, the frame comprising a plurality of prestressed interconnected spars, guys and a sail, a...
4205618 Trimming and stabilizing systems  
Provided is a trimming and stabilizing arrangement for motor-driven vessels of the type in which the engine of the vessel is placed in the stern thereof and comprises either an outboard engine or...
4182256 Automatic takeoff controller for hydrofoil craft  
An automatic takeoff control system for hydrofoil craft characterized in that the control surfaces of the craft are caused to automatically assume predetermined positions during takeoff, obviating...
4100876 Hydrofoil fixed strut steering control  
Apparatus for steering a hydrofoil ship by the combination of one or more trailing-edge or spade rudders in combination with means for controlling the side forces on a vertical, fixed strut or...
4099477 Engine powered water craft  
An engine powered water craft comprising a hull including a pair of spaced apart hull elements extending rearwardly therefrom configured to support the craft on the water in combination with a...
4061104 Hydrofoil vessel  
A hydrofoil vessel in which the hydrofoils comprise pairs of rotary members which are inclined in a downwardly inboard direction from opposite sides of the hull or body portion of the vessel. The...
4058076 Hull foils with hydrodynamic righting forces  
A boat is provided having front and rear ends, a bottom and upwardly projecting sides extending upwardly to an elevation spaced above the static water line of the boat. A depending central strut...
4033278 Apparatus for controlling lateral positioning of a marine seismic cable  
Apparatus for controlling the lateral position of a marine seismic cable relative to water current which is effective through utilization of one or more cable paravanes having a thrust adjustable...
3934533 Aerofoil or hydrofoil  
A reversible aerofoil or hydrofoil has a central panel with lateral panels hinged thereto. The section of the central panel is symmetrical on either side of a central axis and the lateral panels...
3926138 Drive for hydrofoil boat  
A drive for a hydrofoil boat with two wings or foils mounted on the side of the boat and connected to flat vertical supports which are pivotably coupled to the port and starboard side of the boat....
3922994 Twin-hulled outrigger sailboat  
The invention is a high-speed, planing sailboat having an elongated main body portion supported on two longitudinally spaced bouyant hull members and having two stabilizing outrigger pontoons...
3898946 Sea-going high-commercial-speed displacement vessel  
A sea-going high-commercial-speed displacement vessel consisting of an upper hull 1, in the form of one or several floor pontoons being equipped with narrow stabilizing floats 12 provided at least...
3830190 VARIABLE GEOMETRY MARINE PROPULSOR  
A marine propulsive apparatus and a device and method for increasing the aratus' efficiency by controlling the amount of wetting of the apparatus over a range of speeds. A housing, mounted in a...
3804048 HYDROFOIL WATERCRAFT  
A hydrofoil watercraft utilizing forward and rearward struts and foils configured and oriented to provide lateral stability. The forward strut is freely rotatable about its longitudinal axis and...
3802366 HYDROFOIL SAILBOAT  
A hydrofoil sailing craft including a main hull flanked by a pair of outrigger hulls extending forwardly of the main hull. The outrigger hulls mount depending hydrofoils which extend downwardly...
3788256 WATERCRAFT WITH ROTATABLE FLOATING PONTOONS  
A watercraft is provided with a frame symmetrical about a longitudinal axis and having at least two pairs of freely rotatable floating pontoons. The pontoons have a generally circular disk-like...
3762353 HIGH SPEED SAILBOAT  
The present invention is directed to a high speed sailboat which uses a horizontal, downward pulley hydrofoil which is extended from the hull on the windward side to provide a stabilizing moment...
3747138 HYDROFOIL SURFBOARDS  
A wave riding, wave-propelled free body surfboard when underway along the surface of a wave is supported above the wave by hydrofoils having sufficient area, angle of attack and lift to support at...
3742890 FREE TRAILING FORWARD HYDROFOIL STRUT  
A fully submerged foil type hydrofoil craft having aft mounted strut means and a single forward strut. The forward strut is swivelably mounted to the hull in a free trailing uncontrolled...
3669053 STEERING SYSTEMS ESPECIALLY FOR WATER CRAFTS  
A water vehicle has a hull which normally rests in the water. When the vehicle comes up to high speed, it is supported at each of its four corners by any suitable means, such as hydrofoils,...
3631828 SAILBOAT HYDROFOILS  
A hydrofoil craft having curved buoyant hydrofoils supporting a light frame which is driven by sail. During high winds the curved hydrofoils prevent the craft from "jumping" out of the water by...
3561388 HYDROFOIL SALING CRAFT  
A hydrofoil trimaran, adapted to be supported wholly by hydrofoils with sail propulsion means, comprising a bow hydrofoil truss structure having a symmetrically disposed dihedral foil element with...
3476072 WATERCRAFT PROPULSION  
3465704 HYDROFOIL SYSTEM FOR BOATS  
3456609 HYDROFOIL WATERCRAFT  
3390655 Patrol craft  
3369513 Hydroplanes  
3295487 Hydrofoil sailboat  
3294055 Watercraft  
3267897 Hydrofoil craft  
3208422 Boat construction  
3199483 Multi-use for hydrofoil supported displacement vessel  
3183871 Speed boat with underwater wings  
3182341 Hydrofoil skis  
3158129 Aquatic vehicle  
3143996 Watercraft  
3105249 Hydro-foil apparatus  
3099240 Boat construction  

Matches 1 - 50 out of 62 1 2 >