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| Number | Title | Issue Date |
| 7354323 | Motor mount for watercraft A motor mount for a watercraft having a frame of tubular construction fixed to the stern of the watercraft to space the motor from the stern. The frame includes a pair of vertical legs receiving a yoke slidable along the legs. The motor is fixed to the yoke to be ra... | 04/08/2008 |
| 7263940 | Pontoon frame and adjustable motor mount A float structure having a mainframe and pontoons is described. The mainframe includes floor support beams transversely attached to pontoon connector beams. The pontoon connector beams are operatively connected to the pontoons such that there are no weak points in t... | 09/04/2007 |
| 7244157 | High-lift, low drag fin for surfboard and other watercraft This invention discloses a fin, for use on a surfboard and other watercraft, of a low-drag, high-lift, high-aspect-ratio, low-sweepback-angle planform of symmetrical foil section, with a fit root section that has a forwardly projecting leading edge and cutaway at th... | 07/17/2007 |
| 7137349 | Kickdown catamaran A kick down and kick up catamaran assembles by hand with holes in main spar and stern spar ends receiving threaded rods extending vertically from the side-by-side hulls, secured in place with hand knobs. A bow spar with a line to the mast lifts the mast to vertical ... | 11/21/2006 |
| 7004092 | Pontoon frame and adjustable motor mount A float structure having a mainframe and pontoons is described. The mainframe includes floor support beams transversely attached to pontoon connector beams. The pontoon connector beams are operatively connected to the pontoons such that there are no weak points in t... | 02/28/2006 |
| 6939184 | Isolated motor pan for watercraft A dampening assembly used in watercraft to isolate the motor from the deck of the watercraft. In an embodiment of the invention, a frame including cross-members and a plurality of brackets supports the deck. The dampening assembly of the present invention extends fr... | 09/06/2005 |
| 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 iako (1) joining a main hull and a single outrigger hull or am... | 08/23/2005 |
| 6923131 | Windsurfing catamaran with dynamic shock dampened rig centering keel and hull support A windsurfing catamaran with a self-stabilizing wing. The wing is moved to the correct position by counter balancing water pressure from a rotating central keel connected to a central mast. The keel rotates in the opposite direction of the wing when the wing is move... | 08/02/2005 |
| 6725798 | Canoe platform A canoe platform interconnects a pair of spaced apart canoes arranged parallel with each other so that the platform can support human activity while the canoes support the platform above the water. The platform is made of a pair of panels adjoining each other and sp... | 04/27/2004 |
| 6311632 | Portable pontoon craft A pontoon water craft includes a pair of spaced apart, floatable, cylindrical, hollow pontoons. A mainframe is mounted between the pontoons having three horizontally spaced apart arcuate shaped harness members extending from each end of a cross bar member... | 11/06/2001 |
| 6302042 | Deck support bracket for pontoon craft A pontoon craft such as a vessel, a floating platform or a floating dock, having at least two pontoons, a deck extending between two of the pontoons, an elongate deck support bracket attached to a pontoon and having a first longitudinal slot which extends... | 10/16/2001 |
| 6016762 | Planing foil for twin hulled boats A preferred planing foil apparatus (10) for use with a pontoon boat (12) includes mounting structure (32) for connecting a planing foil (30) to the boat (12) with the foil (30) positioned between and spaced from the pontoons (12, 14) generally amidships a... | 01/25/2000 |
| 5826529 | Stabilizing hull for watercraft The invention relates to a stabilizing hull for watercraft. The hull comprises a series of sealed, hollow, aluminum tubes. The entire structure is held together with a lightweight aluminum frame. The pontoons are preferably six-inch diameter, aluminum pip... | 10/27/1998 |
| 5702274 | Flotatation device propelled by human-powered ski machine A floatation device with propeller drive assembly and steerable rudder for use with a ski machine allowing an individual the ability to have a self propelled water craft. The device utilizes a ski machine having a rotating flywheel to provide power for th... | 12/30/1997 |
| 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 components are mounted. A seat with a foldable back is supported ... | 12/02/1997 |
| 5649498 | Dual-hulled kayak A dual-hulled kayak useful in white water recreational activities is disclosed and includes a rigid frame structure that carries a plurality of oar pins to support oars on each side of the frame structure. The dual-hulled kayak is capable of supporting tw... | 07/22/1997 |
| 5567188 | Jet powered water vehicle The invention relates to a hydro-jet powered water vehicle having a jet motor and a seat for a passenger, the seat being provided with means for the feet of the passenger. The vehicle is designed so that, when it does not carry any load, the floating cent... | 10/22/1996 |
| 5410977 | Rudderless sailboat A rudderless sailboat having a mast keel assembly which can be pivoted fore or aft to generate a moment of force to effect easy precise sailboat steering. In one embodiment including a catamaran, the keel is integral to the mast and thus pivots correspond... | 05/02/1995 |
| 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 |
| 5184561 | Planing pontoon boat A pontoon boat comprising elongated flotation units of generally circular cross-section positioned in spaced-apart parallel relationship with each of the flotation units having planing fins extending longitudinally of the inboard and outboard sides of the... | 02/09/1993 |
| 5056448 | PVC boat A boat built up entirely from polyvinyl chloride pipe sections and pipe fittings including a pair of pontoons joined together by transverse members and a deck frame adhesively joined to the pontoons and having cross members for receiving a deck.... | 10/15/1991 |
| 4993340 | Boat structure A boat pontoon has a V-shaped keel region and a frame on deck connected to points along the keel region by rods of adjustable effective length. Any limited part of the keel region can be deflected in one direction by increasing the length of the rod conne... | 02/19/1991 |
| 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 |
| 4836298 | Boat of the catamaran type, propelled mechanically A boat of the catamaran type, which is mechanically propelled, preferably by means of an outboard motor comprises two floasts, which are advantageously identical, coplanar and parallel, and a seat of the motor which are maintained rigidly together. Two tr... | 06/06/1989 |
| 4829926 | Pontoon boat having a collapsible form A pontoon boat, of the type having two pontoons upon which is erected a platform and railing, for use as a shallow draft vessel, is shown having the platform and railings contructed of a particular collapsible construction specifically adapted for rapid, ... | 05/16/1989 |
| 4817548 | Multiple hull boat The invention relates to a multiple hull boat, especially a catamaran or trimaran. Extended hulls with various cross-sectional dimensions are provided as lifting device. The thickness of the hulls continuously increases abaft in the upper third part of th... | 04/04/1989 |
| 4766829 | Catamaran-type marine craft A catamaran-type air cushion craft has two floats (211) arranged spaced apart parallel to one another which are connected together at the top by a connecting structure which carries built-in structures and which is sealed at the bottom by an air-tight tra... | 08/30/1988 |
| 4562786 | Collapsible pontoon boat A collapsible pontoon boat includes a deck assembly and a plurality of inflatable pontoons for receiving and supporting the deck assembly. The deck assembly includes a plurality of deck panels, and end rails and side rails assemblable into a deck frame. T... | 01/07/1986 |
| 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 of the hull and a pitch-sensitive variable camber mast and ... | 01/07/1986 |
| 4561371 | Catamaran stabilization structure A catamaran stabilization structure for catamaran sailboats which includes a centerboard and dagger-boards. The centerboard has a double wing stabilizer with adjustable pitch. The dagger-boards protrude through each of the hulls. Each dagger-board has a s... | 12/31/1985 |
| 4537145 | Wind propelled vessel Sailing vessel having mast and sail tiltable fore and aft and athwartship. The mast is held at an intermediate place along its length, and its lower end is swingable about the intermediate holding means.... | 08/27/1985 |
| 4463699 | 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 of the hull and a pitch-sensitive variable camber mast and ... | 08/07/1984 |
| 4411213 | Twin-hull watercraft A twin-hull watercraft in which the two hulls are disposed parallel to and spaced apart from each other and rigidly connected by means of tubular struts. The hulls and struts take the form of tight pressure vessels which are provided with cells that can b... | 10/25/1983 |
| 4406239 | Sailboats, especially catamarans A sailboat of the catamaran type has a pair of hulls joined by a pair of wedge shaped crossbeams, the crossbeams geometry being oriented to provide balanced distribution of loading on the hulls and crossbeams. An easily dismantable, multipart mast is step... | 09/27/1983 |
| 4333414 | Submersible twin-hull watercraft A submersible watercraft has at least one watertight hull and a diver-exit vessel adapted to accommodate a diver is detachably connected to the watercraft by a sealable diver-exit port which enables divers to pass between the diver-exit vessel and the wat... | 06/08/1982 |
| 4323352 | Cerf cycle A craft for travel upon a water surface, the craft including a frame mounted upon two spaced apart pontoons, a windshield, a two passenger seat, and a foot powered mechanism mounted on the frame, the mechanism including propellers mounted on foreward-rear... | 04/06/1982 |
| 4318700 | Paddle wheel operated watercraft A watercraft has two pontoons interconnected by framework which supports a propelling unit adjacent its bow end. The unit includes a paddle wheel between the two pontoons with exposed pedals to be engaged by the feet of a seated occupant. A rudder is atta... | 03/09/1982 |
| 4303033 | Portable pontoon boat Pontoons are formed from elongated bodies of flotation material enclosed in rigid, channel-shaped housings and assembled in spaced relationship to each other by assembly rods extending through the pontoons and a platform member intermediate the pontoons. ... | 12/01/1981 |
| 3990380 | Stabilizing and supporting structure for a multi-hull boat A basic supporting and interconnecting structure for attaching separate floats or hulls to one another or to a main hull of a catamaran or trimaran boat. Generally, the structure comprises four tetrahedrons mounted horizontally perpendicular to a vertical... | 11/09/1976 |
