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8156879 Sailing craft comprising a tilting rigid sail system  
A sailing craft propelled by a tilting sail system comprising an aerofoil sail capable of omni-directional attitude for wind propulsion. The sail is fixed to the craft in such a manner as to permit...
8117977 Aerodynamic wind propulsion device and method for controlling  
The invention relates to an aerodynamic wind propulsion device, particularly for watercrafts, comprising an aerodynamic wing being connected to a steering unit by a tractive cable, having a first...
8104415 Sailboat substantially free of heeling moments  
A sailboat includes a sail assembly with opposing upper and lower ends, a leading edge and a trailing edge. The sail assembly is normally offset from the hull and oriented for generation of a...
7752987 Collapsible perimeter supported wind propulsion device  
A sail assembly having a single, closed-loop support batten that supports a flexible sail. The sail is a hollow body defining a substantially hemispherical shape when fully expanded by captured...
7712427 Apparatus for control of pivoting wing-type sail  
A steerable wing-type sail system for a wind powered craft. The system includes first and second secondary airfoils and that are spaced outwardly to the sides of the plane of the main wing, and...
7637221 Sailboat  
A sailboat has a preferably solid hull with lateral and longitudinal symmetry, a centrally located ring-shaped seat secured to a central portion of the top of an hull, a selectively rotatable...
7603958 Light-weight, soft wing-sail for wind-propelled vehicle  
A light-weight soft wing-sail for a wind-propelled vehicle includes a free standing rotating mast to be mounted in a vertical position on the vehicle and, three fully battened sail panels that...
7267065 Sailing vessel with lateen sail rigging  
A lateen rigged sailing vessel having a mast; a luffspar; a boom; a pair of lateral struts; and a lateen sail, has a lower end of the mast mounted forward on the vessel and positioned on the...
7263939 Simplified elevated sailing apparatus  
An elevated sailing apparatus that extracts traction power from the wind. It operates without the heeling moment (typical of conventional sailboats), which constrains the design and limits the...
6925949 Elevated sailing apparatus  
An elevated sailing apparatus that includes one or more wings, tethered to a conveyance, and suspended from beneath a streamlined, lighter-than-air blimp. The wings generate both propulsive and...
6910434 Control device for steering kite on a boat  
A control device for a steering kite on a boat. The steering kite can be steered by a steering device and at least two or three, preferably at least four or five, suspension lines. The control...
6575107 Rotary gear for sailing boats  
An improved rotary gear for sailing boats is provided wherein the connection of the boom to the rest of the rig is such that on the horizontal plane the boom must rotate simultaneously with the...
5988086 Sailboat and methods  
The invention provides various improved sailboats and methods for their use. In one exemplary embodiment, a sailboat comprises a hull and a deck that is operably attached to the hull. The deck has...
5601044 Sailboat  
A sailboat having an improved mast and boom arrangement wherein the mast is pivotally supported relative to the hull about an axis that is disposed rearwardly from the mast and close to but in...
5415121 Air flow indicator for sailboat sails  
An air flow indicator for a sailboat sail has a lever passing through a small hole in the surface of the sail. Flexible tails are affixed to opposite ends of the lever on opposite sides of the...
5355817 Sail boat  
A wind-powered boat has a pair of spaced apart, fixed hull sections and a castering front hull between the side hull sections. A turret section is supported for rotation on the boat and has a...
5289792 Spinnaker sail for kayaks, canoes or other small watercraft  
An improved spinnaker sail for use with kayaks, canoes, or other small watercraft is disclosed. The spinnaker is designed with a free backstay feature that eliminates moment forces on the mast. A...
5272996 Surfboard sail  
A surfing sail includes a basic sail, whose luff is attached to a mast associated in the usual way with a boom to the aft end of which is attached the clew of the basic sail and an auxiliary sail...
5197401 Rotating ring mast sailing vessel and a method of vessel operation  
A system for powering a water vessel having as its principal components rectangular sails secured to a rectangular frame which in turn is attached to an annular mast rotatably mounted on a...
5144903 Yacht and yacht model  
A yacht model or a full scale yacht includes a hull and a mast is provided on the hull to extend upward from the hull to support a main sail. A spinnaker is provided in front of the mast and the...
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...
5076186 Sailboat provided with an anti-heeling and support device  
A sailboat having a vertical mast supporting vertical sails thereon that extend vertically lengthwise of the mast, and a keel and a rudder. At the upper end of the mast a wing is connected, the...
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...
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...
5003903 Fluid foil system  
An improved fluid foil system which is particularly adapted yet not limited to use in sail craft. When used in e.g. a sailboat, the foil is rotationally supported with respect to a mast and...
4958582 Spinnaker sail for kayaks, canoes or other small water craft  
An improved spinnaker sail for use with kayaks, canoes, or other small watercraft is disclosed. The spinnaker is designed with a free backstay feature which eliminates moment forces on the mast. A...
4934296 Hydrofoil sailboat and method of sailing therewith  
A tetrahedrally shaped pivotable sailing frame of four spars and a sail with balanced hydrofoils is disclosed. A hydrofoil sailboat is created by pivotally attaching the frame to a hull along a...
4913375 Vehicle for use on land, air, or water  
A vehicle usable in the air, on water, or on ground is described. Outer wing portions are connected to a central portion by a mechanism which allows the outer wing portions to pivot about first...
4817549 Combined whisker pole and boat hook  
A sailboat having a foresail is disclosed including a combination whisker pole and boat hook where the whisker pole portion includes a cleat for securing an idle foresail sheet to retain the pole...
4799443 Swing sail boat  
A novel rigging for a sailboat is disclosed in which the mainsail is mounted between a luff boom and a foot boom, the luff boom being attached to the top of the mast by a fitting that allows...
4788924 Sailing system  
A sail assembly for use with a hull, comprising a base and a mast mounted on the base for rotation about a vertical axis, the mast also extending at a mast tilt angle with respect to the vertical....
4759305 Foil control feedback mechanism  
A device for controlling the angle of a foil or sail in relation to a force acting upon it. The device utilizes a 2:1 hypocycloidal gearing system which regulates the boom and sail of a boat. The...
4674427 Propulsion system for sailing crafts and ships  
A propulsion system for crafts and ships, notably sailing ships, includes at least one flexible or rigid sail, to which are attached one or several foils, eventually provided with small floats,...
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...
4546718 Sailing ship  
A sailing ship (1) has at least one mast (2,3,4) rigidly attached thereto, to which the yards (5 to 9) are rotatably attached. By an actuating shaft (21), the sail (22, 22a, 22b) can be reefed and,...
4453483 Sail assembly for vessels  
A sail assembly for vessels which includes a plurality of elongated vanes or sails having a high aspect ratio to increase efficiency.
4382417 Glider sail assembly  
A glider sail assembly comprises a center boom with a fore end for directing into a wind and a mount for connecting the center boom generally horizontally at the top of a mast and directed at an...
4367688 Sailboat rig  
Sailboat having twin booms, doubled sail and rotatable mast permits conventional sailing with both booms and sail sections on same tack or with booms spread, wing and wing, to run before the wind...
4353702 Sailing craft mainsail and auxiliary propulsion means therefor  
A configuration for a sailboat mainsail comprises a rotating wind-mill like sail structure mounted on a rotating pedestal base. The wind driven rotating sail delivers power to the sailboat...
4314518 Simplified sailing system  
A method and device are disclosed for sailing a wind-propelled vehicle whereby when a rig positioning indicator identifies the same portion of an identifiable code on a second coded structure that...
4276033 Sailing system  
A sail mounting frame extends upwardly from the hull of a boat and is constructed of a lower section and an upper section which rotate relative to each other about a first axis of rotation which...
4178867 Rescue signal device  
A rescue signal device of this invention can be used on a life boat and on other objects for rescue, here more concerned about the use on a life boat. The device consists of a signal balloon which...
4077345 Sailboat construction  
A sailboat which includes a hull and a sail assembly with the sail assembly being rotatable with respect to the hull. The rotational axis of the sail passes through the center of the sail so that...
4068607 Controllable wing sail  
A sail and rigging arranged to be easily installed on and removed from a hull in which the sail is a wing-like element having a high aspect ratio, and the rigging includes a supporting structure...
4061099 Outrigger sailboat  
An outrigger sailboat having a drive outrigger hull is disclosed herein. A pair of movable keels is rotatably connected to a bottom portion of the drive outrigger hull. The movable keels are...
3968765 Rotatable-mounting apparatus for sails  
An apparatus for rotatably mounting a sail on racing yachts, sailboats and sailsleds, which includes a step adapted to be mounted on the hull of the craft, a boom, rigging connecting the sail to...
3802371 SAILING RIG  
Sailing rig for a sailing vessel in which a pair of sails are transversely spaced from each other and on opposite sides of a main mast mounted on the centerline of the hull. These sails are both...
3693571 SAIL RIG  
This invention relates to a sail rig adapted for use with any sail propelled vehicle which permits both the tack and the clew of the sail to be positioned independently relative to the body of the...
3626883 SAILING VESSEL WITH THE LUFF OF THE MAINSAIL CLEAR OF THE MAST  
A sailing vessel in which the mainsail luff is set on a different plane than the mast to avoid wind turbulence aft of a supporting mast. A track is secured athwartship just aft of the mast and the...
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