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6736080 |
Seagoing vessels
A seagoing vessel having a length of between 45 and 175 meters and designed to operate at speeds of between 25 and 70 knots, the vessel comprising a single main hull with stabilising amahs...
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6089173 |
Multi-hull watercraft with self-righting capabilities
A multi-hull watercraft, such as a catamaran or trimaran is constructed to facilitate the righting thereof following a capsize. By providing a pivot connection between the hulls and the...
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5937777 |
Monohull water-borne craft
The invention is a monohull water-borne craft comprising a hull having a main portion and an opposed pair of stabilizers, the stabilizers being positioned on opposite sides of the main hull portion...
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5809923 |
Apparatus for controlling the buoyancy and draft of a vessel
The present invention provides manageable buoyancy and adjustable vessel draft which makes navigation possible in both shallow and deep waters without changing the total vessel weight or its given...
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5642682 |
Recoverable trimaran
The present invention features a trimaran-styled vessel that can recover from capsizing. The recoverable trimaran is made up of a specifically configured main hull with retractable, asymmetrical...
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5575230 |
Tug boat for escort towing and/or harbor use
A tug boat for escort towing and/or harbor use having a towing winch positioned at least on the forecastle. While in escort towing, the tug is intended to improve the steering and arresting...
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5492074 |
Sailing arrangement
A pair of pontoons are connected together in spaced arrangement by a bridge. A hammock, for supporting the user of the sailing arrangement, is disposed between and above the pontoons. A framed sail...
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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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4878447 |
Multihull vessels
A multi-hull vessel has a center section and a plurality of float arm assemblies disposed on opposite sides of the center section. The float arm assemblies are pivoted so as to be movable upwardly...
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4836120 |
Self-righting waterborne craft
Disclosed is a system for displacing the center of buoyancy from the center of gravity in a capsized craft and maintain the displacement until the craft is substantially re-righted. Buoyancy is...
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4785754 |
Device for avoiding capsizing of catamarans
A device for avoiding capsizing of catamarans, in which a mast of the catamaran is pivotally mounted on a transverse beam of connection between two hulls and kept in position by two shrouds which,...
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4765269 |
Rightable catamaran
A capsized catamaran having hollow pontoons, or pontoon sections, is righted by: (i) employing and operating automatic flooding means for locally flooding the pontoons to effect rotation and...
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4541356 |
Multihull vessel with capsize prevention means
A capsize prevention device for a multihull vessel which may be mounted to an existing vessel or be integrally manufactured therewith. The device includes first and second tubes disposed...
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4516516 |
Ballast apparatus for righting a capsized boat
A ballast apparatus for aiding in righting a capsized boat comprises a container for holding a quantity of water as ballast and includes a support for securing the container full of water to a...
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4441445 |
Self-righting multihull boat
The trimaran has a lateral hull which is fixed at the end of a beam rotatably mounted on a longitudinal axis, which itself is supported by an outrigger protruding from the central hull. A jack...
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4227474 |
Catamaran equipped with re-righting device
A catamaran is provided which is equipped to permit facile re-righting thereof after capsizing. The catamaran includes floodable forecastles and buoyancy chambers, and a watertight cabin in the...
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3094959 |
Multi-hulled craft
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2794192 |
Safety boat
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