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6932018 |
Manual hydrofoil and spar truss assembly for wind powered watercraft
A simple, lightweight, manually-controlled device for stabilizing and increasing the performance of small, sail-assisted watercraft, containing a single moving part and comprising a curved spar or...
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5839384 |
Multihulled partially air supported marine vehicle
A multihulled partially gas supported marine vehicle that uses artificially pressurized gas cushion recesses in supporting hulls is presented. Definitions of critical bow and recess divergence...
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5630371 |
Catamaran
A catamaran having two spaced apart elongated hulls joined by front and rear cross members holding the hulls in alignment, and having a trampoline extending between the cross members. Cables or...
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5564955 |
Bracket for supporting an electric powered outboard motor and an electric battery relative to a marine vessel
A bracket is provided for supporting an electric powered outboard motor, such as a trolling motor, and a battery relative to a small marine vessel, such as a Hobie Cat, in order to provide...
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5313908 |
Car topable catamaran with collapsible frame and universal tiller/rudder-mast daggerboard mounting constructions
A catamaran has a collapsible frame and a pair of elongated pontoons spacedly secured in collapsible frame. The frame includes fore and aft cross bar sub-frame members and a pair of longitudinally...
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5237954 |
Portable pontoon boat
A small disassembleable boat is comprised of four pontoons which together define the corners of a rectangle, with each pontoon being made from two halfshells flanged together so that they can be...
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5042411 |
Collapsible catamaran sailboat
A collapsible catamaran sailboat has a trampoline and a frame. The frame comprises two spaced cross tubes each having two ends. The frame further comprises two longitudinal, spaced hulls and a...
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4898111 |
Catamaran sailboat user support platforms and packaged elements therefore
Catamaran sailboats have their user support platforms improved to prevent the trampoline from disengaging from its support tubes by interposing a plurality of small plastic retainers having a...
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4854257 |
Yacht tender/boarding vessel
There is herein described an improved boarding device for swimmers, divers, and the like, in the form of an invertible catamaran vessel which serves as a yacht tender in it's upright position and...
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4813366 |
Methods and apparatus for providing an improved sailboat and hull structure therefor
A catamaran and related hull configuration. The hull of the current invention has two generally curved indentations which run most of the length of the hull. Running down the center of the...
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4766830 |
Boat, especially a catamaran, with large deck space and collapsible frame
A boat, especially a catamaran, having a rectangular collapsible frame with a one-man mast stepping structure. The tubular frame is comprised of fore, aft and central sub-frame assemblies which can...
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4662297 |
Knock-down boat
A boat capable of being assembled, disassembled and transported by one individual and without any tools or special equipment. The boat comprises a superstructure which is substantially of...
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4653417 |
Wind propelled vessel
Sailboat has mast tiltable aftward as well as a thwartship when bottom of mast is shifted from central position on athwartship track. Above the track the mast connects with a pair of rigid supports...
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4637332 |
Pivotal motor mount
The present invention relates to a motor support for an outboard motor for use on a twin-hull sailboat or catamaran. The support has a first member which is fixedly attached to either the forward...
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4562784 |
Sailing craft
A sailing craft having hydrodynamically shaped catamaran hulls and tapered configuration rudder assemblies attached to each hull. Low draft keels are attached to the fore one-half bottom portions...
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4557210 |
Twin hull disassemblable rowboat
The twin hull rowboat includes certain structural and functional components designed to provide a water craft which, when assembled, is compact, easily rowed, highly maneuverable and has the...
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4528925 |
Utility container for catamaran sailboats
A utility container for holding personal articles aboard a small catamaran sailboat, with separate internal compartments including an icebox compartment containing an icebox liner. The container is...
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4348971 |
Multi-hull boats
An inflatable catamaran comprises a central tubular longitudinal torsion beam carrying a mast and a set of four or five cross beams secured at their centers to the longitudinal torsion beam and at...
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3473502 |
SAILBOAT
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