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Match Document Document Title
9003986 Autonomous sailing vessel  
An unmanned ocean-going vessel including a primary hull, a rigid wing rotationally coupled with the primary hull where the rigid wing freely rotates about a rotational axis of the rigid wing, a...
8973511 Autonomous sailboat for oceanographic monitoring  
A fleet of autonomous sailing vessels that are equipped with monitoring and communication equipment for reporting environmental and other conditions. For optimal stability, the autonomous sailing...
7743720 Multihull hydrofoil watercraft  
A multihull hydrofoil watercraft incorporates a stabilization system wherein the buoyancy of the hulls is used as a sensing and control mechanism for the hydrofoils. The use of hull buoyancy to...
7237500 Hull construction for side hulls of trimaran and the like  
An amah for a high speed seagoing multi hulled vessel, the amah having sides extending upwardly and outwardly from a base line, the sides having longitudinally extending vertically spaced...
7234404 Water craft with a sail  
A catamaran-type water craft includes a frame (1) which is fixed on two bodies forming floats (2) and a sail (5) for wind-driven displacement when the floats are on a stretch of water,...
7146918 Wind-powered linear motion hydrogen production systems  
A system for generating hydrogen is provided which includes at least one vessel which floats in water. At least one sail for capturing wind to move the vessel reciprocally along a substantially...
7137349 Kickdown catamaran  
A kick down and kick up catamaran assembles by hand with holes in main spar and stern spar ends receiving threaded rods extending vertically from the side-by-side hulls, secured in place with hand...
6923131 Windsurfing catamaran with dynamic shock dampened rig centering keel and hull support  
A windsurfing catamaran with a self-stabilizing wing. The wing is moved to the correct position by counter balancing water pressure from a rotating central keel connected to a central mast. The...
6386130 Control systems for sailing vessels  
An improved control system for a sailing vessel for controlling the position of the sail and the rudder, and affixed to a slidable seat apparatus. A movement of the seat apparatus does not alter...
6202582 Asymmetrically shaped sailboat  
A sailboat symmetrical in the longitudinal direction, but asymmetrical in a cross-sectional plane perpendicular to the longitudinal axis. The sailboat includes a main hull, a mast, a yardarm...
5807152 Surfboard and method of making same  
Lightweight, high-strength flotation devices such as surfboards, sailboard and body boards that can be inexpensively manufactured from plastic sheet materials using thermo-vacuum forming...
5704305 Wind sailing vessel  
A wind sailing vessel for sailing over a water surface comprising an arch shaped platform which disengageably engages first and second conventional windsurfing devices in a spaced, side-by-side...
5682831 Water surface glide sailboat utilizing wind power propelling  
A water surface glide sailboat utilizing wind power propelling is disclosed wherein the sailboat includes a flat bottom float mounted on a beam at a joint having an axis parallel to the keel line...
5657713 Tri-modal multi-canoe boating system  
A system for adapting an open-hulled canoe to multiple modes of operation by connecting it in parallel alignment with a second open-hulled boat using bow and stern connecting members, a rigid fore...
5617805 Trimaran  
An improved trimaran is provided that includes a car-like steering configuration and interchangeable floats or pontoon supports to vary the width of the trimaran, depending on whether the user...
5603277 Tack aback sailboat  
A rudderless sailboat having a hydrodynamic symmetry fore and aft which can be sailed equally well in either direction. The craft is steered by tilting the mast and keel. In an alternative...
5564955 Bracket for supporting an electric powered outboard motor and an electric battery relative to a marine vessel  
A bracket is provided for supporting an electric powered outboard motor, such as a trolling motor, and a battery relative to a small marine vessel, such as a Hobie Cat, in order to provide...
5492074 Sailing arrangement  
A pair of pontoons are connected together in spaced arrangement by a bridge. A hammock, for supporting the user of the sailing arrangement, is disposed between and above the pontoons. A framed...
5237948 Mooring system for oil tanker storage vessel or the like  
A mooring system for an oceangoing vessel such as an oil tanker is disclosed. The system includes a rigid shaft immovably affixed to said vessel, a collar attached to the lower end of the shaft...
5191850 Sail boat righting system  
A righting system for a multi-hulled sailing vessel with a floatable mast has mast support cables, including aft mast support cables, extending from the top portion of the mast to vessel anchor...
5170734 Wind propelled craft with multi-function rudder control arm  
A unique wind propelled craft including a body, a deck which forms the upper surface of the body, a sail for propelling the body by wind forces, a rudder for maneuvering the craft, and a rudder...
5168824 Foil suspended watercraft  
A hydrofoil suspension system which maintains a watercraft in a desired attitude relative the water's surface. Pitching and rolling forces are automatically controlled while the system is...
5158035 Portable collapsible boat  
A portable collapsible boat comprises a body formed of a bottom and a pair of sides which are integrally molded with the bottom. The sides are elastically flexible so as to be foldable to...
5136961 Hydroplaning hydrofoil/airfoil structures and amphibious and aquatic craft  
A hydroplaning hydrofoil and airfoil planing or flying wing structure is disclosed based on the concept of forward-swept planes or planar surfaces having swept-back fore foil sections and...
5134953 Portable outrigger assembly  
A portable outrigger assembly for use to enhance the stability of a sailboat and the like. The outrigger assembly comprises an inflatable hull, a tube for supporting the inflatable hull in...
5088431 Sailing vessels  
Proa sailing vessel including a pair of spaced hulls comprising a windward and a leeward hull, a crossbeam assembly interconnecting the hulls and a fixed mast assembly with its lower end supported...
5056447 Rein-deer kite  
What has been created is a new form of an equipment/kite that carry weight in mid-air regardless of fuel and/or wind, which converts the wind energy into mechanical energy by acting as a sail in a...
5054410 Hydrofoil sailboat with control system  
A multi-hulled sailing vessel is provided with a pair of aileron foils that are mounted outboard from each of two sponsons that are rigidly joined to a central main hull. The aileron foils are...
5048442 Spinnaker handling devices  
A spinnaker pole for controlling a spinnaker on a catamaran or other sailcraft has a cap on its fore end and a guy is reeved through a bore that extends axially through the cap and the fore end of...
5042411 Collapsible catamaran sailboat  
A collapsible catamaran sailboat has a trampoline and a frame. The frame comprises two spaced cross tubes each having two ends. The frame further comprises two longitudinal, spaced hulls and a...
5038694 Small sailing ship  
A small sailing watercraft designed to be operated primarily by a single rider standing on the deck and having an improved hull configuration for improved handling in all seas and all wind...
5027735 Kasipagan sail boat  
What has been created is the fastest sail boat that can act as a tugboat or industrially used to pull a water turbine for the production of electricity or compressed air, as compared to the...
5024177 Wind sailing surf vessel with dual planar surfaces  
A stable and versatile wind sailing vessel for sailing over a water surface comprising first and second elongated and buoyant boards, each having a planar undersurface. An arching platform...
4998498 Knockdown sailboat  
A knockdown sailboat adapted to be stowed in a carrying case which includes inflatable hulls, a frame made up of longitudinal sectional tubular members connected securely to spaced-apart lateral...
4930433 Arrangement for jointing two surfboards as a whole  
The present invention relates to an arrangement for jointing two surfboards as a whole formed by a rectangular frame (4) consisting of two small cross-girders and two small longitudinal girders...
4915047 Knock down catamaran with inflatable pontoons  
A catamaran boat, especially intended for knock-down disassembly and rapid assembly having a generally rectangular frame. The frame has longitudinal members which are releasably connected to...
4907518 Planing hull for multi-hull sail boats  
A multi-hull sailing craft has a pair of essentially aligned parallel interconnecting air foil shaped hulls. Each hull has a vertical flat outwardly curved inner side surface for generating lift...
4856445 Sailboat construction  
A sailboat construction includes a hull having spaced first, second and third longitudinally extending lateral resistance elements which provide resistance to lateral movement of the boat under...
4852507 Sail-wing and controls for a sail craft  
An amphibious sail craft with a sail-wing system is disclosed, including a rotatably mounted mast, a rotatable boom pivotally mounted to the mast, and a sail-wing mounted to the boom and rotatable...
4813366 Methods and apparatus for providing an improved sailboat and hull structure therefor  
A catamaran and related hull configuration. The hull of the current invention has two generally curved indentations which run most of the length of the hull. Running down the center of the...
4796555 Knockdown type inflatable sailboat  
A knockdown type inflatable sailboat which has a carrier system composed of two inflatable rafts assembled with a plurality of U-like fastening elements of a hull assembly and which uses a power...
4785754 Device for avoiding capsizing of catamarans  
A device for avoiding capsizing of catamarans, in which a mast of the catamaran is pivotally mounted on a transverse beam of connection between two hulls and kept in position by two shrouds which,...
4782777 Inflatable catamaran  
An inflatable catamaran which may be constructed principally of plastic sheet stock and plastic tubing and be easily assembled for use and disassembled for storage and shipping. A catamaran with...
4771716 Pleasure boat structure  
A boat structure including an oblong central body, two pontoons, two longitudinal lateral arms of which a first of their extremities is integral with said body by first attachment members and two...
4766830 Boat, especially a catamaran, with large deck space and collapsible frame  
A boat, especially a catamaran, having a rectangular collapsible frame with a one-man mast stepping structure. The tubular frame is comprised of fore, aft and central sub-frame assemblies which...
4702186 Sailboat having at least two hulls  
In a sailboat having at least two hulls which are rigidly connected in parallel spaced arrangement by a platform, the hulls are provided at least at the bow with a bulge-shaped or drop-shaped...
4664049 Lightweight, knockdown, sport trimaran  
A trimaran comprises a central hull, two side hulls disposed on the respective sides of the central hull, a connecting structure detachably connecting the side hulls to the central hull and a mast...
4662297 Knock-down boat  
A boat capable of being assembled, disassembled and transported by one individual and without any tools or special equipment. The boat comprises a superstructure which is substantially of...
4621587 Boat construction  
A demountable catamaran assembly includes a pair of cockpit-equipped, kayak-type canoe hulls laterally joined in spaced-apart relationship by the frame of a trampoline. Longitudinally spaced pairs...
4610212 Fast self righting catamaran  
This highly engineered recreational catamaran features a unique pivotable mast with a downward extending section that holds an underwater ballast. A hang glider type sail provides lift as well as...

Matches 1 - 50 out of 90 1 2 >