Matches 1 - 13 out of 13


Match Document Document Title
7900569 Pedestal for a sailing boat  
A pedestal (1) for a sailing boat comprises a casing (2) and inside such a casing (2): at least one driving wheel (11a, 11b) associated with a motion input shaft (3), at least one driven wheel...
5967073 Sailboat system for controlled gibing  
A system for controlling the jibe movements of a sailboat boom (4), which boom has an outer free end (5) connected to the boat (4) via a sheeting arrangement (6), and an inner end (7) fixed to the...
5784978 Wind energy catchment device  
This invention is a wind energy catchment system using a central vertical shaft, the bottom end of which rotates and is secured to a rigid support fixed to the ground. The lower part of the shaft...
4819574 Rudderless sailboat  
This specification discloses a rudderless sailing craft with two sails of approximately equal area and a vertical keel affixed to the hull near a balance point between the two sails. The central...
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...
4669409 Wind ship propulsion system  
A sailing rig which comprises a rigid airfoil, with intakes on either side of its front. Air is drawn through the leeward intake into a front compartment, then by fan to a pressurized rear...
4505217 Rigid marine sail  
A rigid marine sail comprises a vertical mast secured onto a deck of a ship; at least one pivot shaft provided substantially in parallel with the mast; a left sail portion and a right sail portion...
4448144 Method for opening, closing and rotating rigid marine sail  
A method for opening, closing and rotating a rigid marine sail, which comprises the steps of: selectively opening, closing and rotating, in response to a wind velocity and a wind direction, a...
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...
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...
3889620 Symmetrical sail assembly  
A sail and sail assembly to drive a wind propelled vehicle includes a pair of booms configured in a "V" pattern to carry a triangular sail between them. The booms are mounted with their adjacent...
3149603 Sailing ship rigging and its operation  

Matches 1 - 13 out of 13