Matches 1 - 50 out of 75 1 2 >


Match Document Document Title
9010260 Paddle or pole shaft sail device  
A shaft mount sail device that may have a sail made of a lightweight, flexible material that is capable of being tightly wound about the shaft of a paddle, push-pole or other shaft, a mechanism...
8919272 Aerodynamic lift device and methods of using the same  
Embodiments of the present invention feature a device having aerodynamic lift surfaces that is capable of rotation about a stayed mast.
8869725 Method and system for sensor-based intelligent sails  
Systems, methods and computer program products for sensor-based sailboat sails, including a device to detect whether a flow on a sail is attached or separated including a flow separation sensor; a...
8762022 Marine propulsion system with efficient engine speed delta  
A system and method is provided for efficiently changing controlled engine speed of a marine internal combustion engine in a marine propulsion system for propelling a marine vessel. The system...
8740153 Aerodynamic wind propulsion device having bielastic line coupling  
The invention relates to an aerodynamic wind propulsion device, particularly for watercrafts, comprising an aerodynamic wing being connected to a steering unit located below the aerodynamic wing...
8726824 Sailing vessel control device and system  
The present disclosure relates to a sailing vessel control device having a cleat means, a resistance means, a line having a first end located through the cleat means and a second end attached to...
8635965 Sail system  
A sail system comprising a substantially isosceles-triangle-shaped sail with two booms and an arc-shaped element. The two booms are arranged along substantially equal sides of the sail and...
8424477 Sailing device for deep-sea vessels  
A sailing device for efficient uses of wind energy which use at least one mast connected to the ship and two sail areas which are attached to the mast. The at least one mast is fitted with a top...
8402905 Kite ship  
A kite ship contains a ship and a kite for pulling the ship, wherein the kite includes a kite main body, the upper and the lower ends of which are respectively connected with an upper and a lower...
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...
8100072 Fabric sail  
The present invention relates to a fabric sail (1) which maintains a minimal surface. An elastic boundary is attached to the edges of an elastic membrane, and the edges (4) are shaped so that the...
7866271 Placement system for a flying kite-type wind-attacked element in a wind-powered watercraft  
Disclosed is a placement system for a free-flying kite-type wind-attacked element in a watercraft in which the kite-type wind-attacked element comprising a profiled wing is connected to the vessel...
7798084 Sail and device for rotatably connecting a sail batten to a mast and shaping a luff of the sail  
In a battened sailboard sail a sail attachment device is attached to the leading edge of the sail and the sail attachment device is connected to a camber-inducer by a line that is acted on by a...
7798083 Positioning device for a free-flying kite-type wind-attacked element in a wind-powered watercraft  
Disclosed is a positioning device for a free-flying kite-type wind-attacked element that comprises a profiled wing, is used as the exclusive, an auxiliary, or an emergency drive unit, and is...
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...
7578252 Inflatable whisker pole  
A whisker pole for a sailboat is provided. The whisker pole includes an inflatable portion that can be pressurized to maintain the position of a headsail. The whisker pole can be deflated for...
7568442 Three degree-of-freedom pivot assembly, sail-mounted ballast, and sail control system for high speed sailboats  
A sailboat is disclosed wherein the sailboat includes a three degree-of-freedom pivot assembly, sail-mounted ballast, and sail control system. These three features increase sailing efficiency and...
7546813 Positioning device for a free-flying kite-type wind-attacked element in a wind-powered watercraft  
Disclosed is a positioning device for a free-flying kite-type wind-attacked element that comprises a profiled wing, is used as the exclusive, an auxiliary, or an emergency drive unit, and is...
7497181 Sailboat safety system for a person falling overboard  
A safety system, which stops the motion of a sail boat when a person falls off the boat, is comprised of a wireless transmitter carried by the person, a receiver-controller, an actuator, and a...
7461609 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...
7448337 Wind energy generating apparatus with dihedral sails  
A wind energy apparatus has a shaft, a plurality of masts extending radially outwardly of the shaft, a plurality of dihedral sails respectively affixed to the plurality of masts, and a plurality...
7419561 Cast composite sail and method  
A method of casting a sail comprising supplying a carrier film, supporting the carrier film along a support mechanism, forming a sail form with the support mechanism, pulling the carrier film...
7415935 System for determining the air flow conditions around one or more sails  
The invention relates to a system adapted for sailors in order to determine the air flow conditions around one or more sails, in conjunction with which both sides of the sails are equipped with a...
7406922 Spoiler anchoring sail  
Disclosed is a spoiler anchoring sail that counters the swinging and jerking of a sailboat during anchoring or mooring, thereby providing a convenient, comfortable and secure environment to...
7341014 System for lifting and lowering a sailboat mast  
A system for one person raising and lowering the mast of a sailboat wherein the mast is less than about forty feet in length and in the down position the mast is laid horizontally along a median...
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...
7234406 Fast sail  
This invention belongs to the field of wind propelled vehicles. The goal of the invention is to provide large sails creating no overturning force. This is achieved by placing the top part of the...
7213529 Emergency sail system  
An emergency sail system for disabled watercraft comprises a mast receptacle for interfacing with the watercraft structure and a multi-segmented main mast supported by the mast receptacle in a...
7177735 Control apparatus for a hull with a four-cycle engine installed thereon  
A control apparatus for a hull with a four-cycle engine installed thereon can perform engine stop processing by quickly detecting a turnover state of the hull while suppressing a turnover...
7152543 Boom vang for sailboats  
A vang assembly for manipulating a sailboat boom which is hingendly connected to the lower portion of a sailboat mast (12). The vang assembly includes a rigid and unextensive vang (strut) (20)...
6986318 Sail assembly  
A sail assembly includes a sail, a mast, a coupler, and a fastener. The mast is attached to a first side of the sail. The coupler is attached to the mast and is used to couple the mast to a handle...
6957621 Guide for assisting sails over stanchions  
A stanchion attached to a sail boat is provided where the stanchion supports a lifeline near the top of the stanchion and the lifeline runs generally along the outer edge of the deck of the sail...
6953000 Universally compatible, semi-elliptical, vertically deployed sail system for wind—propelled vehicles  
A comprehensive System of hoisted, universally compatible, semi-elliptical mainsails and self-tacking headsails. Reducing weight on deck and aloft and fully cockpit-controlled, self-boomed System...
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...
6848381 Tension rod constructions and method of making  
A pultruded composite tension rod of hexagonal cross section is provided, as are larger composite rods made up of assemblies of smaller, nested-together parallel hexagonal tension rods that are...
6817308 Sailing rig with freestanding rotating aerofoil sectioned mast  
A sailing rig including a freestanding, rotating aerofoil sectioned mast. The mast is elliptically curved and rotates about an aft slanted axis and the aerofoil section of the mast is tapered from...
RE38448 Sail for a wind-powered vehicle  
A sail for a wind powered vehicle such as a surfboard, sailing boat or the like is provided wherein a sail is connected along its front edge to a mast and wherein the said sail at its clew or at...
6659031 Bridle for power kite launching  
A flexible, propulsive wing of the 4-line type especially suitable for kiteboarding, has, at the rear portion of the wing tip a first pulley means attached thereto, the rear line being connected...
6431100 Stowable semi-rigid wing sail system  
A stowable semi rigid airfoil assembly, functions automatically to airflow as a draft adjusting wing sail, or spinnaker sail (19), for use on a mast (17) with a halyard (41) on a wind powered...
6341571 Wind-powered air/water interface craft having various wing angles and configurations  
A wind powered air/water interface craft disposed in a mechanically simple configuration(s) with means for trimming and/or adjusting the area of the various air and water foil elements either...
6112688 Sail for a wind-powered vehicle  
A sail for a wind powered vehicle such as a surfboard, sailing boat or the like is provided wherein a sail is connected along its front edge to a mast and wherein the said at its clew or at its...
5996522 Storm sail for sailboat with furled bow sail  
A storm sail for sailboats which replaces a larger bow sail. The storm sail has a smaller area than the replaced bow sail, has a luff forming a rectangular rigging band, which having a width...
5988089 Silencer  
Two spaced halyard restraining devices that are fixed to spreaders attached to a sailboat's mast. The two spaced spreaders are horizontally disposed from and fixed to opposite sides of an...
5868092 Wing sail and method of use  
A sail (20) for a sailing vessel (500) includes a leading spar (22), a coplanar trailing spar (24), and a movable spar (28) disposed between the two. A sheath (30) of sail cloth traversely...
5738031 Halyard retainer  
The invention provides a halyard retaining device for securing a plurality of halyards to a mast track in a rearward side of an elongate mast, the device comprising: a collar having a plurality of...
5642683 Parachute-type sail for boats  
A parachute-type sail is connected with a tethering line to a water going vessel to provide motive power for the vessel. At least one swivel is disposed on the tether line between the vessel and...
5638763 Corner reefing sail  
A sailing rig (20) has a sail cloth (26) adjustable in area by folding of the aft corner of sail (26), a clew sail (38). Sail cloth (26) is redesigned so clew sail (38) is not a structural part of...

Matches 1 - 50 out of 75 1 2 >