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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 of...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 to...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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5605110 |
Multi-use watercraft
A multi-use watercraft wherein one or more bays are formed in the aft portion thereof for respectively docking one or more personal watercraft (PWC). The PWCs are connected to provide propulsion...
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5495818 |
Shroud slap stopping mechanism
Apparatus to stop the slapping of halyards against a mast includes a ring or other halyard encircling member lightly engagable with the halyard. A cleat or other line securing member is affixed to...
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5131341 |
Solar powered electric ship system
A system for producing and distributing electric power on a sailing ship, using arrays of photovoltaic cells covering the ships sails and rigging to generate electric power during daylight for the...
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5113776 |
Flagstaff attached halyard retainer
A halyard retainer (10) eliminates noise created by the halyard (12) hitting a flagstaff (14) by retaining the halyard (12) at a greater distance than would normally separate the halyard (12) from...
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5080033 |
Spinnaker launching and dousing device
A spinnaker of the type collapsed edgewise both laterally and vertically to furl the sail in which the furling line is attached to the top of the sail and the connections of the guy lines to the...
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5054413 |
Sailboat pennant mounting unit
A pennant mounting unit enables the mounting of a relatively large pennant upon the stay of a sailboat for free swinging movement relative to the stay about an altitudinal axis passing through an...
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4864952 |
Marine sail system
Marine sail systems for controlling the folding or flaking of the sail during furling or reefing. The system includes a support line, a brailing line, a first mechanism connecting the brailing line...
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4723498 |
Sailboat rigging
The invention relates to a novel sailboat rigging, in which two masts placed without shrouds in a common thwartships plane are joined at the masthead and each have a main boom. Both main booms have...
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4665854 |
Sail rig
The sail rig comprises a quadrangular sail. A mast sleeve is arranged through the sail area from head to the foot and a flexible mast of flat cross section is inserted therein. A wishbone or a...
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