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Match Document Document Title
9027493 Sail bearing  
A bearing for a sail furling apparatus includes a spherical body having a longitudinal axis and containing a cylindrical longitudinal through-opening for receiving a cable of the furling...
8985043 Sail furling sticks  
A system is disclosed for stowing a sail of a sail boat. The system may include a furling stick, and ribs extending therefrom, for gathering the sail upon lowering of the sail. The system may...
8950347 Performance oar  
This invention relates to an apparatus and method for rowing by generating stored energy in stretchable, retracting members and using that stored energy to pull oars back to a neutral position.
8117978 Sailing ship equipped with a hard sail  
A sailing ship comprises a hard sail assembly. The hard sail assembly comprises a plurality of hard sails of wing-shaped hollow cross section. The hard sails are vertically stacked so that each...
7650846 Mainsail reefing system  
A mainsail reefing system comprises: a drum assembly including first and second coaxial drums for collecting luff-end and leech-end reefing lines, respectively; a drive mechanism for rotating the...
7275491 Sail furling system with recirculating halyard  
A sail furler with a recirculating halyard includes a foil having a longitudinal halyard channel and a longitudinal recirculating halyard channel formed within; and a halyard, having a first and...
6178906 Spar for a sailboat  
A spar for controlling downwind headsails is pivoted to headsail instrumentalities for stowage in an aerodynamic sleeve with the headsail. The spar and the headsail has preconnected lines for...
6173668 Furling drum with fixed guard  
A roller furling apparatus is disclosed having a bearing device configured to be rotatably fixed relative to a stay, a furler housing having an opening into which the stay extends and an end...
6044785 Sail banding device  
A sail banding device for preventing a furled sail, in particular a spinnaker, from filling until the sail is fully hoisted. The sail banding device includes a pair of flexible elongate anchor...
5937779 Single-hand sailboat having novel spinnaker raising and lowering system  
A spinnaker raising and lowering system is provided for a sailboat. The system includes a first pulley mounted in a movable mounting. A second pulley contained in a mounting which is fixed to the...
5787831 Sail which can be rolled-up or reefed  
A reefed sail including an inflatable luff chamber which forms an integral part of the sail and defines a reefing axis.
5787830 Sail slide  
A track slide intended to be moved along a track, particularly a mast or boom, having a groove with an enlarged inner portion and a narrow slot defined by two opposite walls of the track. The...
5636584 Lief furling system for gathering flexible material  
A system for gathering cloth, intended for but not limited to sails. A web of vein lines (11) are connected a piece of flexible material in strategic positions depending on the size and cut of the...
5632215 Roller reefing boom system  
A roller reefing boom system includes a mast track arrangement, a sail and a rig which permit the transfer of extremely high mainsheet tensions via the leech to the mast even with a minimum luff...
5560311 Arrangement for a boom on a sailing boat  
The invention relates to an arrangement for a boom on a sailing boat which carries a sail capable of being wound onto a mast. Actuation of the sail is with a force F from a drive motor. In...
5477799 Unstayed sail with releasably engageable luff and leech  
An unstayed sail for a water craft, such as a spinnaker, is provided with tapes along its luff and leech, which can be brought into contact with each other, for releasable engagement, solely by...
5423274 Sailboat  
A sailing craft having a hull with a longitudinal midplane. A primary boom is pivotally mounted on the hull for 360° continuous rotation in either direction about a central vertical axis. The...
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...
5231943 Sail plan for sailing craft  
A plan for a sail of a sailing craft such as a sailboat, an iceboat and a land yacht having a hull. At least one mast is mounted on an end of the hull and the mast angles upwardly over the hull. A...
5119750 Sail dousing and flaking system  
A system for dousing and flaking a sail is disclosed as including a plurality of sail-flaking devices and a douser line. The flaking devices are disposed at points spaced along the luff and the...
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...
5076187 Sails away  
A device for gathering in and folding the mainsail on the boom of a sailboat. Four battens are inserted into the slots of the batten holders, which are secured to the boom with fasteners, forming...
5048443 Sail handling system  
The specification discloses a sail handling system having a series of lines interwoven through a sail, and lines passing through grommets on the sail to prevent the sail from falling freely down...
4986205 Self-flaking sail system  
A self-flaking sail system is disclosed, including generally U-shaped shackles, each of which has a pair of legs joined by a bight portion, and having on their opposite ends, transversely aligned...
4967680 Vertically zip-reefing sail  
A zip-fastener on each side of a working sail, for example a mainsail, makes it possible to remove from the effective area of the sail an elongated triangular area with its apex at the top and one...
4951589 Mainsail construction facilitating airflow thereover  
An improved mainsail construction having a barrier extending laterally outward from the mainsail and the mainsail boom to prevent flow of air from the high pressure side to the low pressure side...
4895092 Mainsail furling device for a sailboat  
A mainsail furling device for a sailboat having a boom comprising a plurality of pairs of mounting brackets attached to the boom, each of the mounting brackets having a substantially L-shaped...
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...
4844136 Sail furler  
A device for furling a sail comprising; a support structure, means for mounting the support structure to a boom of a sailboat; a retaining structure fixed to the support structure; and an...
4788923 Sailing craft  
Sailing craft having a mast supporting a large sail; the mast is curved towards the prow of the craft, the large sail being attached to the mast on the same side as the convexity of the curve; the...
4748926 System for changing the outline of a sail being wound up to reduce its area  
A sail maneuverable through the rotation of a rolling and unrolling structure to which the sail is anchored along an anchorage edge. A sheath surrounds the rolling structure and engages the sail...
4724787 Device for furling a sail of a ship on a boom  
This device for furling a sail of a ship on a boom (1) connected to a mast (2) by means of articulation means (3) and mounted so that it can rotate about itself, comprising means for driving the...
4723499 Furling system for sailboats  
A roller reefing system for use on the existing forestay of a sailboat such that it surrounds the forestay when installed and in use. The system includes a furling member which is composed of a...
4702191 Sail device  
A sail device characterized in that a sail frame is formed of upper and lower horizontal beam members fixed horizontally to a mast and linealy bent at bending points, holding pillars that are...
4688506 Boat sail control system  
System for controlling a boat sail as it is dropped, the sail being made of flexible material and being folded to lie when it is a mainsail, for example, on top of the boom of the boat. One or...
4679520 Mainsail reefing and furling device and method  
A method and device for gathering a mainsail in a cavity within the boom as the sail is being lowered. The boom has a plurality of engaged rollers which draw in or let out the sail by tractive forces.
4606292 Apparatus for reefing sails on a boat and specially-designed boom including such an apparatus  
Apparatus for reefing sails on a boat and specially-designed boom including such an apparatus. The hollow boom extrusion houses at least one traveler block with two pulley wheels, over which pass...
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...
4506620 Sailboat having convertible rig  
A sailboat comprising at least one mast, first and second pairs of primary half yards pivotally mounted on and vertically spaced apart along the mast for pivoting about the mast between first and...
4503797 Sail rolling and storing device  
A device for rolling and storing a sail associated with a rolling boom, including a sheath of deformable material encircling the boom and provided with rigid edges defining a slit for passing the...
4487147 Continuous reefing system  
A sail is reefed by a single continuous reefing line which passes from the boom through a leech cringle then down parallel to the boom and then upwardly through a block affixed to a luff cringle....
4480570 Mainsail furling mast assembly and mast construction therefor  
A mainsail furling mast assembly utilizes a mast having a cross section providing a C-shaped outer wall and a transverse wall defining a rearwardly opening compartment in which is disposed a...
4479451 Sail with air envelope and contour shaping parts  
A sail with a tubular portion is pulled over a mast and/or a stay of a sailing vessel. The tubular portion is inflatable through a sail mouth opening at the fore leech thus forming an air envelope...
4474127 Working sails and method for furling them while aloft  
Working sails are simultaneously furled and bagged by providing at the head of the sail a collapsed bag which is open at its foot end and has two forward edges each slidably attached to, e.g., a...
4469040 Sailboat wing spar structure  
A sailboat hull and deck structure has a tubular bearing assembly fixedly supported by the hull and deck structure and a hollow mast is journaled by said bearing assembly and extends vertically...
4449468 Adjustable roller furling spar  
An adjustable roller furling spar includes an elongated base member which is securable on a sailboat and an adjustable periphery assembly which is attached to the base member and coextends a...
4388888 Adjustable airfoil  
This invention relates to an adjustable airfoil which in one embodiment includes a pivotal mast having laterally extending spaced upper and lower arms. Between the arms is a vane which is...
4365572 Working sails and methods for furling them while aloft  
Working sails are furled remotely while aloft by progressively forming flexible sheet material along the forepart of the sail into a tubular bag containing the sail furled from leech to luff in...
4357889 Sail handling apparatus  
Sail handling apparatus comprises an elongate guide element, e.g. a rod or a cable, located along a path along which a tie locating an edge portion of a sail is required to move during sail...
4354444 Sail handling apparatus  
Sail handling apparatus that includes a pair of aligned generally triangular panels secured along a boom and to a portion of the mast above the boom. The panels normally straddle the boom to...

Matches 1 - 50 out of 72 1 2 >