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7293516 Apparatus for reconfiguration of a variable-draft vessel  
A vertical translation mechanism for reconfiguring the hull form of a reconfigurable vessel having independently movably side hulls and a center hull is disclosed. The vertical translation...
7278364 Reconfigurable attack and reconnaissance vessel I  
A reconfigurable marine vessel is disclosed. The marine vessel includes an upper hull, two propulsion hulls, and two struts for coupling the propulsion hulls to the upper hull. The struts are...
7234405 Sea rescue craft  
An apparatus, method and system for rescuing persons and distressed vessels, up to about 50 tons displacement, in foul weather and for transporting loaded full sized truck/ship containers or other...
7219613 Reconfigurable attack and reconnaissance vessel II  
A reconfigurable marine vessel is disclosed. The marine vessel includes an upper hull, two propulsion hulls, and two struts for coupling the propulsion hulls to the upper hull. The struts are...
7213527 Folding pontoon trailer for all-terrain vehicle  
A pontoon usable for supporting a load, the pontoon being towable on land and usable on water to support the load thereonto. The pontoon includes a hinge; a first platform attached to the hinge,...
7194972 Variable-draft vessel  
A vessel that varies its draft by adopting any one of three primary hull forms or configurations is disclosed. The primary hull forms include: a catamaran configuration, a barge configuration, and...
7171915 Water-stable inflatable pontoon boat transportable by trailer  
A boat having inflatable pontoons connected therewith by rotatable support assemblies is described. The structure is capable of collapsing to a small size for transport on a trailer, but provides a...
7047896 Multi-hulled vessel  
A cargo carrying nautical vessel ( 1 ) is provided, having a plurality of cargo carrying hulls ( 2 a, 2 b ) connected by at least two connecting structures ( 3, 4 ), each connecting structure...
6877450 Variable-draft vessel  
A variable-draft vessel. The variable-draft vessel including a center hull; a first side hull coupled to a first side of the center hull; a second side hull coupled to a second side of the center...
6874439 Flexible ocean-going vessels with surface conforming hulls  
The vessel has a pair of flexible hulls flexibly coupled to a “cabin” between and above the hulls, thereby allowing the hulls to independently follow the surface of the water. Motor pods are...
6860215 Assembly for converting a catamaran into a trimaran  
An assembly for converting a catamaran into a trimaran, the assembly comprising a center hull, left and right side linkage members, with each linkage member having front and rear lateral portions...
6851378 Articulated multi-hull water craft  
A multi-hull vessel capable of planing. The vessel has a rigid superstructure that is rotatably linked to flat-bottomed hulls. As the vessel heels, the pivotable connection between the...
6840825 Amphibious recreational vehicle  
An amphibious recreational vehicle (motorhome, trailer, SUV, and the like) of conventional RV height, width, and length restricted dimensions necessary to travel on highways and roads, and which...
6830003 Multihull boat  
The invention relates to an apparatus for attachment to a multihull boat, the apparatus including a beam means substantially transversely associated with at least a first hull and a second hull,...
6640737 Retractable multi-hulled watercraft  
A catamaran boat that can be sailed or motor driven having a central cabin structure carried above water by a pair or more of retractable hulls whether hulls are extended or retracted. Each hull...
6588352 WAY as acronym for wave avoidance yacht  
In operation for wave avoidance the WAY presents only a small profile and a small part of its total structure to the most dynamically active part of all ocean waves, their surface and crests. This...
6564735 Folding pontoon boat  
A folding pontoon boat which can be folded to a lesser width unfolded to a greater operating width. The boat can be launched in the folded configuration, unfolded on the water, and subsequently...
6546885 Collapsible catamaran  
A catamaran type water craft having two tandem pairs of scissors-like folding mechanisms disposed between and pivotally connecting to the opposing upright surfaces of adjacent, juxtaposed hulls....
6345582 Outrigger apparatus  
A outrigger apparatus for connecting a pontoon to a canoe and placing a platform therebetween. The outrigger apparatus includes a pontoon portion. A coupling means couples the pontoon portion to a...
6176190 Suspension system for a speed boat  
A watercraft allowing relative motion of its deck relative to its hull structure to increase passenger comfort. The deck is mounted to the hull structure in a manner which permits relative motion...
6146218 Universal platform for human powered floatation devices  
A universal platform for a human powered floatation device. The platform has a frame with two spaced apart rail members adapted to interchangeably receive multiple types of propulsion devices. A...
6095079 Folding pontoon boat  
A folding pontoon boat comprising first and second pontoons having first and second decks secured thereto, respectively, which extend therebetween. The inner sides of the first and second decks are...
6070544 Boat with outriggers  
A boat has a main hull and a pair of outriggers which extend to distal, capsizing-resistance formations. The capsizing-resistance formation are relatively diminutive:--they displace a substantially...
6044784 Marine vessels  
A marine vessel comprises at least one hull stabilized by at least one pair of outboard sponsons and propelled by propulsion means carried by the sponsons or hull. One aspect of the invention is...
6003458 Expandable pontoon boat  
An expandable pontoon boat that is retractable into a retracted configuration for trailering and expandable to provide additional passenger room. The expandable pontoon boat includes an interlock...
5921195 Apparatus for coastal navigation and self rescue  
The present invention provides adjustable vessel draft by controlling buoyancy and making navigation possible in both shallow and deep waters without changing the total vessel weight or its given...
5915321 Multihull navigating structure  
A multihull navigating structure, such as a catamaran, includes a floating base (10) comprising two hulls (12), means (14) to render integral the hulls, a motor (16) disposed in at least one of the...
5896825 Dual hull watercraft  
In a dual-hull watercraft, a separate keel hull and sail hull are connected by a tie line. The sail hull comprises a sail and hull without a keel. The keel hull comprises a keel and hull or a...
5894807 Sailboat  
A sailboat comprising at least one hull that is connected to a deck that has a line formed in a closed loop connected thereto. A sail, defined as a jib, being attached at its lower corners to the...
5870966 Folding pontoon boat  
A folding pontoon boat to be typically used by one person. Consisting of a semi flat midsection which pivots about it's center axis. A plurality of pontoons are attached to the starboard and port...
5826533 Twin-hulled boat  
A twin-hulled boat (1) is constructed from three individual parts being two parallel, relatively narrow and relatively long hulls (2) each individually connected, at releasable joints (13,9), to a...
5692450 One man fishing vessel  
A one-man vessel ideally suited for fishing includes a pair of rigid support pontoons that are interconnected by cross-frame members to provide a solid base from which a number of accessory...
5515801 Folding trimaran  
Folding trimaran which is symmetrical in relation to its median longitudinal axis and comprises a central hull, equipped with a mast, and also two lateral floats, which are connected to the central...
5377608 Asymmetric pontoons for a water craft  
A water borne vessel is supported by a pair of laterally extendible pontoons, which pontoons are extended as a function of both speed and water conditions. A combination of extensible hydraulic...
5315947 Multi-section hull structures  
A water going vessel, which may be a mono hull-type vessel or a multihull-type vessel has a hull which is divided lengthwise into a row or rows of individual hull sections. Each hull section is...
5189974 Kayak catamaran  
A catamaran kayak is disclosed which comprises a plurality of hulls (10, 12) which are joined together and laterally spaced by elongated connectors (B). Flexible couplings (C) are formed on the...
5107783 Variable trim trimaran  
This invention relates to a variable trim trimaran in which side floats (2) are provided that are connected to the central hull (1) by means of devices (3, 5) that allow them to shift vertically,...
5086721 Lightweight transportable watercraft  
A lightweight transportable watercraft includes a pair of pontoons disposed in spaced side-by-side relation to one another, a stool straddling the pontoons and extending over the space between the...
5052324 Folding fishing boat apparatus  
An apparatus is set forth wherein a plurality of spaced pontoons are pivotal relative to one another to define a fishing boat in an open configuration, wherein a brace is selectively positionable...
4981100 House trailer and boat assembly  
A house trailer and boat assembly with improved integration of the specific elements of the trailer and boat configurations such that in each of the house trailer and house boat configurations as...
4972788 Aquatic vehicle  
In an aquatic vehicle with one or more hulls, a chamber (10) is formed in the boat or hull (19, 7). The chamber has at least one opening (13) which can be closed via a closing element (14) and at...
4768454 Folding wheeled boat  
A compact portable folding boat comprising a mid section with a wheel coupled to the front of the mid section. The boat has sections hinged to each side of the mid section which fold up over the...
4716847 Multiple-hulled marine vessel  
A multiple-hulled marine vessel resistant to forces tending to separate the hulls from the platform is provided. The connections between the hulls and the platform include elastic elements which...
4671198 Multi-hull, anti-capsizing sailboat  
A three hulled sailboat consists of a tripod frame having three generally horizontal spars which define support points at their distal ends. During the sailing of the boat, one support point is...
4496325 Collapsible paddle boat  
A paddle boat comprising a plurality of floats, collapsible driving and propelling apparatus, folding steering apparatus, the driving and propelling apparatus and steering apparatus adapted for...
4494472 Floating and nonsubmersible nautical craft  
A floating, nonsubmersible nautical craft has a hull provided with portholes for observation of the underwater medium. It is buoyed and stabilized, and its draft can be varied. The hull and the...
4474128 Multi-hulled sailing vessel  
A sailing vessel having the performance capabilities of a multi-hull craft with the superior stability of a ballasted mono-hull craft, comprising a central hull supporting a mast and a pair of...
4337715 Articulated catamaran  
This invention relates to a boat of the catamaran type comprising two elongated floats interconnected by a beam system carrying a cockpit. The beam system is connected to each float by a transverse...
3981259 Catamaran with extensible hulls  
A boat of the catamaran type having the usual superstructure mounted on a frame mechanism to which a pair of spaced parallel hulls are pivotably mounted. The frame mechanism includes an actuatable...
3978536 Collapsible watercraft  
A collapsible watercraft which can be readily transported along a highway when in its collapsed disposition but, upon arrival at a lake or other body of water, can be readily erected into an...
Matches 1 - 50 out of 75 1 2 >