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| Number | Title | Issue Date |
| D633851 | Fishing boat pontoon | 03/08/2011 |
| D588518 | Vessel | 03/17/2009 |
| D570278 | Hull for catamaran type windsurfing vessel | 06/03/2008 |
| D568803 | Motor sailor | 05/13/2008 |
| D566644 | Dual hull kayak | 04/15/2008 |
| 5405275 | Personalized watercraft A watercraft has floats supporting a bicycle-type frame, having handlebars connected to a rudder to steer the watercraft. A chain and sprocket foot operated drive is connected to a shaft journaled to a housing accommodating a power transmission for rotati... | 04/11/1995 |
| 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 cylinder units and threaded shafts selectively provide contro... | 01/03/1995 |
| 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 extending sub-frame members and a support platform support... | 05/24/1994 |
| 5199367 | Catamaran Two embodiments of hull designs for catamarans in which the sponsons are configured so as to provide a displacement type operation and in which the sponsons are configured so as to improve stability while reducing flow resistance. The sponsons are general... | 04/06/1993 |
| 5197401 | Rotating ring mast sailing vessel and a method of vessel operation A system for powering a water vessel having as its principal components rectangular sails secured to a rectangular frame which in turn is attached to an annular mast rotatably mounted on a plurality of supports rigidly affixed to the vessel. In a second s... | 03/30/1993 |
| 5191849 | Multi-hulled boat A multi-hulled boat has at least three hulls, with the outside hulls extending forward beyond the central or inside hull or hulls. The hulls are tapered with a cross-sectional configuration that increases in side front to rear, thus forming a channel or t... | 03/09/1993 |
| 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 hulls which receive the ends of elongated connectors (B) and ... | 03/02/1993 |
| 5188049 | Catamaran boat A powered catamaran boat having displacement hulls (10) that provide stable boat performance. The two hulls (10) are joined by a deck structure (12), forming a tunnel (16) between the two hulls. Each of the hulls is symmetric and has a half entry angle (Î... | 02/23/1993 |
| 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, wherein a deck structure (4) is provided that is connected ... | 04/28/1992 |
| 5078072 | Catamaran A catamaran construction formed from a molded fiberglass reinforced resin and a method for making it wherein the hull is comprised of a main hull and a pair of sponsons each affixed to the respective sides of the main hull. The main hull is formed from up... | 01/07/1992 |
| 5074233 | Collapsible one-man pontoon fishing raft A collapsible fishing raft comprising pontoons and a seat which, when secured to the pontoons, maintains the spaced relationship between the pontoons.... | 12/24/1991 |
| 5063869 | Wing type sailing yacht A wing type sailing yacht is constructed to incorporate the airfoil principle. Such a yacht has a boat hull, a mast, and a sail, including a bow with a bow keel and a stern with a stern keel. Each keel has a buoyancy control fin (9, 10) at its lower end. ... | 11/12/1991 |
| 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 within one of a plurality of pairs of spaced recesses align... | 10/01/1991 |
| 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 mechanism for releasably attaching one end of each cross tube ... | 08/27/1991 |
| 5031557 | Float connection assembly construction method for trimarans A molded or pre-fabricated Central Core Unit module, containing the aligned attachment points, surfaces, or brackets necessary for incorporating the Float Connection Assemblies for the retraction of a trimaran's stabilizing floats, to be along side the ce... | 07/16/1991 |
| 4998498 | Knockdown sailboat A knockdown sailboat adapted to be stowed in a carrying case which includes inflatable hulls, a frame made up of longitudinal sectional tubular members connected securely to spaced-apart lateral tubular frame members, and a telescopic sectional mast stepp... | 03/12/1991 |
| 4996935 | Stable racing catamaran with hydrofoil qualities A stable racing catamaran with hydrofoil qualities is disclosed. The stable racing catamaran with hydrofoil qualities includes a deck, a pair of forward pylons affixed to the deck, a pair of aft pylons affixed to the deck, a pair of forward hulls affixed ... | 03/05/1991 |
| 4981099 | Watercraft The improved watercraft comprises an underwater pod or pods, that support a pecentage of the displacement of the watercraft at rest. The percentage of displacement produced by the pods could vary widely based upon the purposes of the watercraft and its in... | 01/01/1991 |
| 4941419 | Catamaran boat structure There is disclosed a catamaran either of the inboard or of the outboard type comprising a tunnel having a decreasing height from the bow to the stern thereof and so shaped as to provide an optimal distribution of the underlaying air pressure and in which,... | 07/17/1990 |
| 4936242 | Inflatable catamaran kit In a preferred embodiment, a sail-boat type wind-surfing catamaran as a kit of disassembled parts having inflatable deflated pneumatically-sealed pontoons, attachable and anchorable onto transversely extending detachable forwardly and rearwardly beams by ... | 06/26/1990 |
| 4930433 | Arrangement for jointing two surfboards as a whole The present invention relates to an arrangement for jointing two surfboards as a whole formed by a rectangular frame (4) consisting of two small cross-girders and two small longitudinal girders (5) and (6) having the following component parts: (a) two set... | 06/05/1990 |
| 4915047 | Knock down catamaran with inflatable pontoons A catamaran boat, especially intended for knock-down disassembly and rapid assembly having a generally rectangular frame. The frame has longitudinal members which are releasably connected to transverse members. At least one of the transverse members is ar... | 04/10/1990 |
| 4907518 | Planing hull for multi-hull sail boats A multi-hull sailing craft has a pair of essentially aligned parallel interconnecting air foil shaped hulls. Each hull has a vertical flat outwardly curved inner side surface for generating lift and terminating at a lower edge which defines the keel line.... | 03/13/1990 |
| 4870919 | Catamaran type boat A catamaran boat comprises two pontoons which are rigidly interconnected in laterally spaced relationship by a plurality of transverse beams. An air guiding sheet is rigidly connected to the bottom surfaces of the transverse beams and defines an air tunne... | 10/03/1989 |
| 4856446 | Collapsible fishing and/or leisure boat A knockdown fishing and/or leisure boat comprises two identical floats on which rests a deck. Each of the floats is provided, in its superior median axis, with a plurality of threaded bolts evenly spaced to assure dismountable attachment of a same quantit... | 08/15/1989 |
| 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 as a boarding device for swimmers in it's inverted position... | 08/08/1989 |
| 4854256 | Aquatic show boat An aquatic show boat has a pair of separated, long narrow hulls joined in a parallel fashion (catamaran like) by a plurality of connecting pieces which together with both hulls enclose the perimeter of at least one activity area. Demonstrations, exhibits ... | 08/08/1989 |
| 4827859 | Boat A fishing boat has two pontoons connected by a panel. The boat is made of expanded copolymer, preferably a mixture of polystyrene and polyethylene. The bottom of the panel is above the water line when the boat is carrying a normal load. A motor mount is c... | 05/09/1989 |
| 4823726 | Inflatable boat with a rigid or semirigid keel and a catamaran or trimaran bottom, and with guides arranged flush with the boat floor The inflatable boat comprises a catamaran or trimaran bottom and, on the boat floor, longitudinal sliding guides for locking at the desired portions, and without the need of making holes, all of the members usually arranged on the boat floor such as the d... | 04/25/1989 |
| 4823717 | Deck connection system for a boat A system for detachably connecting a wing to a pair of spaced hollow hulls to complete a deck assembly for a boat, such as a catamaran. Each hull has an upwardly extending, open ended hatch cone which communicates with the hull interior. The hatch cones a... | 04/25/1989 |
| 4771716 | Pleasure boat structure A boat structure including an oblong central body, two pontoons, two longitudinal lateral arms of which a first of their extremities is integral with said body by first attachment members and two second and third linking members of the two other second ex... | 09/20/1988 |
| 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 be collapsed so as to be easily car topable and serve as ... | 08/30/1988 |
| 4732102 | Portable, self-contained, self-adjustable craft lift and wet/dry storage system The invention comprises an improved system for raising, lowering and wet/dry storing of a craft supported thereon. This improvement includes pontoon means and structural frame means, respectively, for supporting said craft. The pontoon means and structura... | 03/22/1988 |
| 4724785 | Frame support for connecting two float members A boat includes two sail surf-board floats, a frame cooperating with each of the floats, a rigid framing comprising at least four fastening lugs to be associated pairwise with each of the frames and so arranged as to retain the frames and thereby the floa... | 02/16/1988 |
| 4715306 | Catamaran with a steerable centerboard apparatus and an improved deck joint A catamaran with a steerable centerboard apparatus includes a housing rotatably mounted on the deck of the catamaran. A centerboard is pivotally mounted to the housing to permit movement between an upper and lower position. A tiller, integral with the hou... | 12/29/1987 |
