Matches 1 - 50 out of 85 1 2 >
Match Document Document Title
7434531 Device for adjusting boat wake  
A boat with a controllable wake, including a boat hull with a propulsion system. A wake controlling device includes first and second plates with a bottom surface which is convexly curved between...
7371140 Protective marine vessel and drive  
A marine vessel and drive combination includes port and starboard tunnels formed in a marine vessel hull raising port and starboard steerable marine propulsion devices to protective positions...
7341013 Small planing watercraft  
A small planing watercraft can have a hull, an engine, and a steering assembly. The steering assembly can be configured to be translatable in the fore and aft direction, as well as pivotable about...
7318388 Integrated marine performance system  
A system for improving the performance of a powered boat that includes both methods and apparatuses that provide a powered boat ways to stabilize, control, and optimize the powered boat's...
7314014 Water craft  
A water craft ( 77 ) is disclosed which includes a chassis portion ( 78 ), at least four water engaging means ( 30, 34, 38, 42 ) and interconnecting means ( 94, 96, 98, 100, 102, 104, 106, 108,...
7252047 Wave-forming apparatus for boats  
An adjustable wake-forming apparatus attachable to a boat stern providing means for generating waves of a particular form for water sport activities. The attachment is comprised of a pair of blades...
7246565 Boat hull dispersion tunnel engagement device and method  
A boat hull includes a dispersion tunnel extending fore and aft forming a channel within a hull bottom surface for receiving a flow of water. A gate is inserted into and out of the channel for...
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...
7188580 Variable-geometry graduated surface-foil for wing-in-ground effect vehicles  
The invention is a marine wing-in-ground effect vehicle capable of sustained high speed operation in varying seas. The vehicle comprises an aerodynamic flat bottom lifting wing with a fuselage, a...
7174843 Hydrofoil unit for attaching to the stern of the hull of a boat  
A hydrofoil unit for attaching to the stern of the hull of a boat. The unit includes a mount that mounts to the stern of the hull of the boat, a hydrofoil that is pivotally attached to the mount, a...
6941884 Wake control mechanism  
The present invention is a wake control mechanism for watercrafts comprising flat or upwardly curved wake control plate(s) which is/are connected to the stern in a variety of ways, either fixed or...
6935263 Wake absorber  
A wake absorber, wherein an aquatic vehicle with a propulsor mounted on the vehicle and operative to propel the vehicle through a water medium, has a wake absorber mounted on the vehicle aft of the...
6827031 Steering system for watercraft  
A watercraft includes moveable sponsons that are moved in response to movements of the handlebars and the accelerator lever. The watercraft can include a number of different kinds of actuators for...
6807920 Personal watercraft having adjustable angle sponsons  
Adjustable angle sponsons and personal watercraft having adjustable angle sponsons. The present invention provides sponsons having at least two adjustable angular settings downward of horizontal...
6805068 Hydrofoil system for lifting a boat partially out of water an amount sufficient to reduce drag  
A hydrofoil system for lifting a boat out of water an amount sufficient to reduce drag while still allowing the boat to be powered by a conventional inboard-outboard drive. The hydrofoil system...
6745715 Stern flap corrective motion and fuel saving control system for marine vessels  
Corrective stabilizing motions are applied to a sea vessel hull during seawater travel in response to stern flap displacement by hydrodynamic forces induced at the buttock of the vessel hull and by...
6712016 Personal watercraft having ventilated sponsons  
Ventilated sponsons, personal watercraft having ventilated sponsons, and methods for adjusting the handling characteristics of personal watercraft by ventilating the sponsons. The present invention...
6651579 Personal watercraft having tuneable sponsons  
Tunable sponsons for personal watercraft and personal watercraft having the tunable sponsons. The present invention provides personal watercraft having sponsons with an adjustable height relative...
6619224 Marine vessel  
A modular marine vessel has a variable hull and a plurality of boat forming modules including a bow section module, a load section module having a bow end and an aft end, and a bulkhead forming...
6588360 Detachable planing enhancement system for inflatable sportboats  
A detachable planing enhancement system with two substantial planing surface areas attached symmetrically on the transom of an inflatable sportboat to provide a substantial lifting force thereon....
6571724 Stern depressor type motion stabilization system for marine vessel  
Depressors mounted on the stern of a marine vessel are deployed by displacement from positions retracted from the seawater to positions immersed therein so as to divert exit flow of the seawater...
6524146 Watercraft having auxiliary steering  
A control mechanism for a watercraft includes a selectively movable flap connected to an actuator, which moves the flap into and out of the flow of water to affect steering, deceleration and...
6523490 Adjustable sponson for watercraft  
An adjustable sponson for a personal watercraft allows the vertical position and the angular orientation of the sponson to be adjusted to suit the particular size and riding style of each rider....
6223674 Gentile performance wedge (GPW) shock mitigation planning boat hull  
A planing boat's primary hull has an adjunct hull surface rotatably connected thereto near its forward end. The adjunct hull surface extends along the hull of the planing boat to aft of amidships...
6182596 System for minimizing the effects of shock and vibration in a high speed vessel  
A system for minimizing the effects of shock and vibration in a high speed vessel with an inner hull and an outer hull. It is a system of dampers, springs and stabilizer linkages in a high speed...
6174210 Watercraft control mechanism  
A control mechanism for a watercraft is described herein, said control mechanism comprising a steerable propulsion source, a steering controller for controlling said steerable propulsion source, a...
6158376 Shock reduction in planing boats  
A system is disclosed to reduce the impact shock associated with operating a planing boat at high speeds. The system, called "LocalFlex," comprises an outer bottom placed under the inner bottom of...
6131853 Micro-drag generators for aerodynamic and hydrodynamic braking and control  
An apparatus and method for generating large drag forces on an object moving through a gas or liquid for braking and/or turning the object by deploying on the exterior surface of an object a very...
6032605 Adjustable sponson system for watercraft  
An adjustable sponson system for a watercraft includes a coupling mechanism that allows the position of the sponsons relative to the hull of the watercraft to be varied by the operator of the...
6003465 Lower part of the hull of a planing amphibian  
An improved design for the lower part of the hull of a planing amphibian. The design contains an immovable member, a dampening movable member in the form of a set of overlapping plates attached to...
5908006 Adjustable Sponson for Watercraft  
An adjustable sponson for a watercraft includes a coupling mechanism that allows the angular orientation of the sponson body relative to the hull of the watercraft to be varied by the operator of...
5713297 Adjustable sponson for watercraft  
An adjustable sponson for a watercraft includes a coupling mechanism that allows the angular orientation of the sponson body relative to the hull of the watercraft to be varied by the operator of...
5588391 Fin with trailing edge fixed flaps for ships  
A fin with trailing edge fixed flaps for ships, characterized in that it is made of a main fin (1) to which are associated one or several pairs of fixed flaps (2a and 2b) of mean camber.
5465678 Piece of hull for boats and vessels  
A piece of hull of a boat, vessel or other construction designed to travel over water, which piece is attached with devices to the rest of the hull in a manner that allows the pieces of hull to...
5404830 Finned boat hull  
The invention is a displacement boat hull having the outboard surfaces of its wetted portion designed with a deep-V shape, and having at least one pair of retractable hydrofoil fins positioned in...
5390623 Boat hull  
Boat hull or attachment with a plurality of longitudinally movable elements. Presently preferred embodiments utilize wings or ski members which are movable and maintainable between multiple...
5348265 Air cushion supported secondary structure  
This invention consists of a parent structure and a stabilized supported secondary structure with one or more supporting pressurized gas cushions disposed between them. Selective control of...
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 relative...
5263433 Hybrid hydrofoil strut leading edge extension  
A strut leading edge extension for a marine vehicle has an upper hull, a strut, a lower hull, and a foil. The strut leading edge extension includes a device for defining an extended strut leading...
5224436 Multifunction hydrodynamic and buoyant hull extension for planing water craft  
A hull extension is attached at an appropriate distance above the hull bottom surface to the stern of a planing water craft so as to be at least partially submerged at subplaning speeds and totally...
5218918 Convertible powerboat  
A convertible powerboat is provided which consists of a hull having a bow and a stern, a power source at the stern of the hull and a mechanism for altering the power source, so that it can be...
5207408 Stabilized air supported structure  
Presented is a way to stabilize and support a secondary structure, such as a passenger compartment in a moving vehicle, so that the supported or secondary structure remains substantially level and...
5088433 Wave-making resistance suppressing means in ship and ship provided therewith  
The wave making resistance on a proceeding ship can be greatly decreased by providing the ship hull with at least one pair of fins mounted on the hull extending above and below the draft line, each...
4977845 Boat propulsion and handling system  
An improved boat construction is disclosed in which a boat, having the typical elongated hull, bow and stern, has a bottom configured as a hydroplane including a transverse step spaced from the bow...
4964357 Planing boat  
A boat comprising a tube-like hull (1), a hydrofoil (2) fixed to its front portion, a pair of wings (4) hinged to each side of its rear portion, a fin (20) fixed to its rear bottom portion, an...
4953492 Water supporting and propulsion systems  
An improved watercraft and propulsion system is disclosed for moving a watercraft such as an amphibious vehicle or a speed boat from 0 velocity to speeds in excess of 20 miles per hour. Each...
4896621 Method of modifying a boat hull to obtain enhanced lift and rough water stability  
Hydrofoil craft, particularly a method of economically modifying a conventional hull by means of foils to obtain enhanced lift and rough water stability. The method is characterized by defining an...
4821663 Boat hull  
An amphibious boat hull is disclosed having at least three co-extensive, longitudinally disposed hull sections in which at least two sections, in a projected condition, have sufficient buoyancy to...
4690094 Boat with changeable configuration hull  
A planing boat is provided having a variable configuration hull including two side panels hingedly secured to opposite sides of a keel panel. When the boat is sitting still in the water or moving...
4688504 Sailing craft  
A sailing craft has a middle float and two lateral pivotable floats joined to it via struts and their joints. The two lateral floats each have two surface regions that can be brought into contact...
Matches 1 - 50 out of 85 1 2 >