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7591229 |
Forespar for a sailing vessel
A spar for a sailing vessel comprises an elongated member which projects upwardly at an oblique angle from the centerline of the vessel deck and defines a longitudinal axis of rotation. The...
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7533623 |
Sailing boats
A mast ( 1 ) is in the form of an egg-shaped closed loop that extends abeam of a hull ( 7 ). A main spar ( 2 ) is supported on the mast ( 1 ) and extends upwardly from a lower, fore position on the...
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7418911 |
Trailerable sailboat with mast raising method
Important design features and methods of launching a trailerable sailboat are described. The trailerable sailboat is designed to allow transportation on overland highways and to provide a...
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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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7337738 |
Gate type vertical elevated mast
A vertically elevated gate mast with open front that is divided into multiple sections and is assembled section by section from bottom to the top. The first section is an integrated structure, and...
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7267073 |
Wind direction indicator
The present invention provides a first axial support that allows of the weathervane to rotate and a second axial support that prevents the weathervane from becoming dislodged from the first axial...
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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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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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7137346 |
Locking hinge for unstayed mast deployment
Stepping and un-stepping of a sailboat mast, of the un-stayed type that is supported only by a receptacle configured in the sailboat structure, are facilitated by a hinged core that is easily...
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7000555 |
Mast extender for a sailboat
A mast extender for extending a mast of a sailboat to a greater height. The mast extender includes a hollow tubular member having a distal end and a proximal end and being substantially...
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6932010 |
Sailboat with offset boom
A sailboat comprising a hull with a mast has a rotatable strut that supports a continuous boom and holds the boom far enough away from the mast to allow clear air flow over the sail on either tack....
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6899047 |
Mast and method of manufacturing a structural member for a boat
A mast for a sailboat and a method of manufacturing the mast or other structural member for a boat, which is produced in a female mold. Any augmentation of the deflection resistance of the...
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6836992 |
Bird repelling device
A bird repelling device has an elongate housing having a slide chamber that extends longitudinally from a top end to a bottom end of the elongate housing. The elongate housing also has a cap...
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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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6708638 |
Method and apparatus for lightning protection
The subject invention pertains to a method and apparatus for lightning protection. The subject method and apparatus can be utilized to provide lightning protection for a marine vessel, other...
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6609471 |
Sailing boat having mast force detection
A method of operating a sailing boat is provided, comprising detecting a force of a mast of a sailing boat on a mast step of a hull of the sailing boat, while the sailing boat is sailing across a...
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6526901 |
Retractable mast for sailboats
A retractable mast for sailboats. The mast, which retracts telescopically, comprises an inner core containing air sealed air chambers, either separated or coextensive, which are pressurized when...
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6520103 |
Boom vang for sailing vessel
A boom vang system for sailboats has a rear facing pivotal cam cleat arm hingedly connected to a rigid tang on the sailboat mast. When the boom vang rotates off the centerline of the boat, as for...
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6457430 |
Sailing assembly for small boats
Small boats such as kayaks, canoes, and skiffs that are normally not propelled by wind power are provided with apparatus of this invention that can enable the conversion to a sailing vessel. A mast...
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6305497 |
Mast ladder assembly
A mast ladder for going up the mast of a sailing craft having a mast with a sail slide extending along the length of the mast including a halyard slide, a plurality of connecting rods, a top step...
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6129033 |
Pulley-or roller-type block with lock arrangement
A pulley- or roller-type block is provided with a lock arrangement. The block has a casing and a rolling unit mounted in the casing for clockwise and counterclockwise rolling. The rolling unit has...
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6105526 |
Apparatus for separating joined members and method therefore
An apparatus for separating mating cylindrical members, for example mating sections of a sailboard mast. The apparatus includes either a pair of support elements or a block element and a lever arm....
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6092481 |
Sailing rig
A windsurfer sailing rig includes a mast with a top mast extension. A swivel connection connects the extension to the top of the mast. In use, down haul tension for the mast is applied to hold the...
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6000354 |
J.P.V.'s telescoping mast
A telescoping mast for conversion of a sailboat. A mast consisting of two portions--an upper telescoping portion which is journalled to telescope up from and retract down into the lower portion...
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5996521 |
Large-scale columnar structure made of a fiber reinforced plastic
A large-sized columnar body made of a fiber reinforced plastics materials (FRP) has three layers A, B and C in this order, respectively formed by a fiber reinforced plastics material consisting of...
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5974998 |
Apparatus for foiling bird landings
A device that prevents birds from landing atop a masthead of a boat or wind indicating devices mounted on the masthead includes an upstanding post having an upper end positioned above the top of...
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5954007 |
Catamaran for sailing and rowing
A catmaran has a U-shaped mast, and either a triangular lateen sail, or a four-sided lug sail, and provisions for rowing, allowing the catamaran to be propelled either by sails or by oars.
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5887841 |
Pole support for use in mast assembly to adjust sail tension
A pole support is adapted for use in a mast assembly of a sail craft to selectively adjust tension of a sail. The mast assembly comprises an elongated and rigid tubular member having a central...
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5873588 |
Assembled sail powered vehicle
An assembled sail powered vehicle, including: a sail; a frame for supporting the sail, the frame including a plurality of elongated rigid frame members, a plurality of joint assemblies releasably...
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5823129 |
Method of uphauling a windsurfer
A method and apparatus for uphauling the sail of a windsurfer is provided. The method and apparatus for uphauling a sail uses the sailor's body weight to uphaul the sail. The apparatus connects...
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5816180 |
Rotating rig
A rig on a sailboat adapted to be mounted on a deck or cabin top of the boat, the rig having a mast, mast step, vertical stabilizing structure for the mast. The rig is mounted for rotation about a...
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5746151 |
Multi-functional carrier for sailboats
A multi-functional hollow body for use as a boom rest or a boom and mast carrier for sailboats that is lightweight and may be positioned and secured to the boat without damaging the surface of its...
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5687666 |
Device for the mast of a sailboat
A main sail's mast rope is inserted into a hollow profile, which is aerodynamically designed and hinged by at least one ring around a substantially round mast. The profile can rotate around the...
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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...
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5556677 |
Composite shaft structure and manufacture
The invention provides improvements to a composite member that has a plurality of plies. The improved composite member has (1) an interior ply which functions to dampen or resist sudden forces...
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5517940 |
Variable width multi-hulled boat with telescoping mast
A variable width boat includes a plurality of hulls and a width varying arrangement connected to and between the hulls for selectively moving the hulls between a closed, folded position and an...
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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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5490472 |
Carbon fiber spar and method of making
A spar is provided comprising an inner layer of fiber, an outer layer of fiber, a hollow between the inner and outer layers of fiber with the inner fiber layer forming a surface of the hollow such...
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5469804 |
Instrument mounting apparatus for sailboats
Mounting apparatus for securing instruments onto the mast of a sailboat comprising a U-shaped frame adapted for lateral placement in an interfit relation with the mast and hose straps extending...
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RE35081 |
Composite structural member with high bending strength
A composite member (10) features a unique ply geometry which contributes to improved bending strength. The composite is constructed of a plurality of plies, each comprising a fiber component...
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5413061 |
Masthead spinnaker halyard turret and method
A spinnaker halyard turret is affixed to a sail boat's masthead permitting a spinnaker halyard to be lead from within the mast through an exit tube at the top of the mast; then over a pair of...
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5347946 |
Structure for aerodynamic transition between mast and sail in a sailcraft
Sail structure for sailcraft for improved air flow transition from the saraft mast. Several embodiments are provided in which a pair of sail luff panels are maintained in close proximity to aft...
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5337691 |
Mast track clutch assembly for sailboards
A mast track clutch assembly allows the longitudinal position of the mast of a windsurfing sailing board to be adjusted by means of a foot pedal. The mast is attached to the clutch assembly, which...
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5331912 |
Self-releasing mast base collar
A windsurfer mast base collar which has a a collar supporting a pair of spring loaded detents that are self-releasing upon application of modest upward manual forces and self-engaging upon...
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5280762 |
Device for the articulation of the sail in horizontal and in vertical direction, associated with a hoist block, a drop block and a rod system
A hoist block is fixed on an inside edge of the sail and to articulated slide in order to enable a rotation in the axis of a sail boat mast groove. A drop block is on the outside edge of the sail....
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5263429 |
Airfoil sail
Airfoil sail for a sailboat of which the length-adjustable mast consists of several telescoping pipes 12, 18, 20 holding individually raised or reefed sail crossbeams 44, 48, 52 with sail coverings...
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5255624 |
Sailboat mast floatation device
An inflatable mechanism for attachment to the top of a sailboat mast to counteract turtling (complete rotation of the boat into an inverted position where the mast is pointed straight down into the...
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5197403 |
Sailing vessel and profile mast for sailing vessels
Sailing vessel and mast for sailing vessels wherein the mast is in the form of a profile body. In an arrangement with a profile mast to hold a reefing roller, the mast is braced with its mast foot...
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5188050 |
Convertible mast assembly
A convertible mast assembly (10) for employing a windsurfing sail assembly (200) on a sailboat (100) having a drop-in mast receptacle (101); wherein, the mast assembly (10) comprises a receptacle...
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5140921 |
Mast provided with guide means for halyards
With reference to FIG. 2, a mast (10) for a sailing vessel is provided with a guide (25) for guiding halyards (19) along the mast and for maintaining the halyards in spaced apart relationship. The...
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