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7575493 |
Thermoformed sports board
The invention is directed to a molded foam sports board made by steps: molding a foam core having a molded contour surface; laminating an extruded adhesive resin layer to a polyolefin foam sheet...
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7370593 |
Windsurfing catamaran vessel
An improved windsurfing catamaran type vessel. The illustrated vessel has an improved steering mechanism that includes a relatively stiff but bendable plastic rod that is directly received within...
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7331835 |
Aquatic gliding board
An aquatic gliding board which incorporates a subassembly that includes a hollow inner shell which is covered with a casing made of foam capable of being machined. The invention also relates to a...
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7201112 |
Filled shell devices and methods of manufacturing
A method of manufacturing an apparatus, such as a board, is provided where a shell is formed in a forming mold cavity and the shell is substantially filled with a core in a filling mold cavity that...
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6908351 |
Expanded polystyrene core sports board
A sports board that includes an expanded-polystyrene sports board core. A composite top skin is heat bonded to the top surface of the expanded polystyrene sports board core. Composite side rail...
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6827617 |
Hollow gliding board with inertial mass
A hollow gliding board having an outer shell that demarcates at least one inner cavity, and having at least one inertial mass.
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6736689 |
Subassembly designed to produce an aquatic gliding board
A structural subassembly provided to produce an aquatic gliding board. The subassembly includes a hollow inner shell which is covered with a casing made of foam capable of being machined. The...
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6669519 |
Methods for manufacturing a structural sub-assembly and a gliding board; structural sub-assembly and gliding board made by such methods
A method for manufacturing a structural sub-assembly for a gliding board, such as a surfboard, as well as a method for manufacturing such gliding board, the method including at least: forming at...
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6595151 |
Planing sailboard
High performance of a sailboard is achieved over a wider range of wind and water conditions by providing a hull having two or more planing surfaces which may differ in shape and/or aspect ratio....
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6131532 |
Inflatable sailboat
An inflatable sailboard consisting of an inflatable hull, a mast, a boom, and a sail, and optionally comprising a removable rigid deck and auxiliary devices such as mast supports and center boards...
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5934214 |
Method of sailing a boat, and sailing vessel
A sailing method and a sailing boat (1) are designed for low or even non-drift sailing, wherein the total power provided by the sail (5) is established, after which the keel (3) is adjusted in...
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5816179 |
Anti-ventilation device for sailboards
An improved sailboard (10) including a hull (12) with a fin (20) secured at the rear thereof, a flexible skirt (24) secured to the hull (12) and extending aft of the fin (20), and a rear extension...
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5787740 |
Boat locking apparatus
A boat locking apparatus is provided for a boat that has a centerboard slot which has a predetermined width and a predetermined height. The boat locking apparatus includes a lock-retaining assembly...
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5724905 |
Sailboats
A proa sailing vessel has spaced hulls each having underwater shapes which are substantially symmetrical about a central athwartship axis and a mast which may be pivoted between forwardly inclined...
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5704305 |
Wind sailing vessel
A wind sailing vessel for sailing over a water surface comprising an arch shaped platform which disengageably engages first and second conventional windsurfing devices in a spaced, side-by-side...
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5514017 |
Recreational board for water sports
A recreational board for use in water sports is constructed of a lightweight core material and surrounded by a waterproof skin. The core is preferably in a honeycomb orientation and constructed of...
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5413060 |
Composite material sail batten and method of manufacture
A sail batten formed of a fiber reinforced composite material extended longitudinally and varying in transverse cross sectional from an ellipse at one end to a flattened ellipse at the other end. A...
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5378181 |
Release footstrap for windsurfing board
A safety release footstrap for windsurfing boards using a differentiating release technology incorporated in a device containing a teardrop-shaped exit ramp, formed by a set of flexible plastic...
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5351637 |
Inflatable sailboard
A novel stable inflatable or inflated sail board is provided. The sailboard includes a plurality of discrete, gas-fillable or gas-filled, elongated chambers, each chamber having a top skin and a...
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5275117 |
Flexible wing shape controlling device
A tensioner for drawing a point on a flexible wing's surface toward its leading edge. The wing's camber is thereby increased and maintained even at high airflow velocities and low angles of attack....
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4998494 |
Device for enhancing the buoyancy of sailboards and the like
The bow portion of a sailbaord is insertable into a pocket at the underside of an inflatable delta-shaped hull having a width exceeding that of the sailboard. This results in a boat which is...
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4964825 |
Composite aquatic board and manufacturing method
An aquatic board construction for sail boards, surf boards and the like has shaped upper and lower sections which are joined together with a generally hollow interior. Each section has a sandwich...
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4963111 |
Water vehicle hull with a compliant lower portion
The rear of the float (1) is cut away in order to provide said float with a lower rear portion or "lift" (4) which exhibits a certain compliance relative to the float. The rear portion or "lift"...
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4961715 |
Surfboard construction
Water sport equipment, such as surfboards, sailboards and the like formed of a molded foam composed of expanded polypropylene foam beads, having a density of approximately 3.75 PCF, melted together...
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4887986 |
Surf-riding board or sailing board
A surf-riding board or sailing board comprises two flexible side portions having a stabilizing effect upon the board in difficult water conditions and during maneuvering.
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4807549 |
Collapsable elongated articles including sailboards and the like
In a collapsable elongated article such as a sailboard, the several sections are joined together at respective double chevron surfaces and maintained together by a suitable clamping device. The...
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4798549 |
Surfboard and method of making same
A surfboard body is built around a hollow stringer which is used for the injection of a lightweight foam into a mold and for providing the support for the lightweight board. One embodiment includes...
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4735163 |
Collapsible sail board
A collapsible sail board is disclosed which includes an inflatable flotation member, a multisection mast, a collapsible boom, a sail, and a keel. The mast is detachably mounted on the upper side of...
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4730568 |
Waterborne craft
A water borne craft includes a smooth rounded elongate sailboard type hull of little depth. The hull tapers down in width and in depth from its middle towards its ends and has smooth upper and...
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4682557 |
Sailing wing
A sailboard with a wing-like sail pivoted to the top of a mast for free roll motion but constrained against pitch. The wing may have a leading edge flap. The wing is made from a sail stretched on a...
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4531922 |
Sailboard and process for its production
In a sailboard made of a synthetic resin with an outer skin and a foam core, as well as with a stringer forming a longitudinal center wall, the outer skin (2) consists of a thermoplastic synthetic...
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4530299 |
Collapsible wind surfing vessel
A wind propelled surfboard which has a catamaran hull wherein each hull can be folded to a collapsed position. Also, the mast and boom are capable of being folded when into a collapsed position...
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4530300 |
Sled with a board-sailing rig
A windsurfing mechanism that comprises a plurality of gliding parts to permit travel at the surface of a medium and adapted to prevent the windsurfing mechanism from sinking into the body of the...
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4521200 |
Surfboard type boat convertible into sailboat or buoy
A surfboard type boat convertible into a sailboat or buoy and comprising a circular floating board enclosed by a shell of polyethylene and containing foamed polystyrene. A cone-shaped keel likewise...
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4441446 |
Improvements in windsurfing boards
A windsurfing board with a hull, a mast and a wishbone or other spar for winging out the sail has side fin plates with lower stabilizing faces and an adjustment system for steplessly changing the...
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4434737 |
Displacement, planing sailboard
A highly efficient sailboard shape has a full displacement form for efficient light and upwind sailing and has an efficient planing form for high wind sailing with the conversion from displacement...
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4331093 |
Composite wind surfboard
Two single surfboards (11, 12) are linked and assembled together in tandem fashion by a linking member (13) of elongated shape located underneath the two single surfboards (11, 12) and secured at...
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4276844 |
Soft sailboard
The invention is an improvement in the construction of the sailboard portion of windsurfers wherein the usual hard-foam slab hull typical of surfboard construction is replaced by a slab of soft...
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4253209 |
Sail boards
A transportable sail board has one or more inflatable bladders, and an envelope subdivided into plural demountable longitudinal sections. Rigidifying elements cooperate with bladder and envelope to...
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4194458 |
Windsurfer with auxiliary propulsion equipment
A standard windsurfer having a surfboard-type body provided with a daggerboard and having a mast and boom that support a sail on the surfboard is formed with an upwardly open storage compartment...
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4159689 |
Windsurfer
A windsurfer comprising a board-like floating body and a sail connected therewith by means of a mast or pole. The floating body, viewed in cross-section, comprises a number of adjacent hoses...
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4100870 |
Surfboard
A sailboard having an unstayed rig comprises a mast mounted by a universal joint on a surfboard having a retractable keel. A sail having a neck and a lower bolt-rope is attached between the mast...
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3996868 |
Windsurfer
A wind-propelled surfboard or aquaplane having a hull assembled of several separable hull sections which are longitudinally clamped together by means of tensioning cables extending inside two...
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