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| Number | Title | Issue Date |
| 7418915 | Entrapment tunnel monohull optimized waterjet and high payload An entrapment tunnel watercraft vessel having three hulls consists of a main hull and two amas arranged outboard of the main hull with the keels of the three hulls being parallel. The main hull is a narrow, vee hull with variable, rearwardly decreasing deadrise. The... | 09/02/2008 |
| 7371140 | Protective marine vessel and drive A marine vessel and drive combination includes port and starboard tunnels formed in a marine vessel hull raising port and starboard steerable marine propulsion devices to protective positions relative to the keel. ... | 05/13/2008 |
| 7364484 | Toy airboat A toy airboat (10) having a negative trim element (38) and an adjustable positive trim element (44) for selectively controlling the performance of the craft in varying environmental conditions such as wind speeds and wave heights. The negative t... | 04/29/2008 |
| 7337735 | Hybridhull boat system A hull is formed of a forward section and rearward sections and intermediate sections there between. A saloon has a transparent front extending upwardly from the forward section with sides extending upwardly from the rearward sections and a roof coupling the front a... | 03/04/2008 |
| 7328668 | Hybrid vee-hull / wing-in-ground effect vessel An improved planing hull which incorporates a vee-bow (1) with outboard chines (2) designed to trap air and water between said chines. As the chines (2) extend aft they become wider and deeper (3) in the water. The vee-bow (1) ensu... | 02/12/2008 |
| 7320291 | Multi-purpose, plastic molded, sit-on-top kayak A plastic molded, sit-on-top kayak of unique size and shape is disclosed with various components which provide multi-purpose usage. The kayak is especially useful for multi-purposes such as sailing kayak surfing, scuba diving, paddling, touring and electric motorize... | 01/22/2008 |
| 7316193 | Vessel for water travel A vessel for water travel that has the stability of a heavy weighted vessel when at rest in the water and the performance of a lightweight vessel when in a planed condition. The vessel comprises at least one hull structure for partially submerged flotation in a body... | 01/08/2008 |
| 7240632 | Personal watercraft center keel A personal watercraft having improved bottom hull shapes in general, and improved center keel shapes in particular. The center keel can have a substantial section over which the keel angle becomes sharper progressing from front to rear, and the concavities on either... | 07/10/2007 |
| 7207286 | Tri-point hydro sled A marine vessel that planes over the water in a straight ahead mode and has a V-shaped bow configuration, two lateral rails, a water jet intake aft of the bow, and a water jet discharge through the transom above the water line. The vessel's tri-point contact with th... | 04/24/2007 |
| 7204196 | Powered boat hull A hydrofoil craft, particularly a method of economically modifying a conventional hull with cambered foils to obtain and calculate increased lift from dense spray and to achieve enhanced craft performance is disclosed. The present invention improves speed, fuel effi... | 04/17/2007 |
| 7185599 | Jet drive propulsion system for a pontoon boat A pontoon boat is provided with a jet drive propulsion system in which an impeller is driven by an engine. The jet drive propulsion device is dirigible as a result of the fact that a nozzle of the device is rotatable about a generally vertical steering axis. The jet... | 03/06/2007 |
| 7182033 | Self-contained marine propulsion system for a pontoon boat A self-contained marine propulsion device is disposed within a container, or pod, that is removably attachable to an undersurface of a deck of a pontoon boat. An engine is contained within the container and connected in torque transmitting relation with the marine p... | 02/27/2007 |
| 7165503 | Hull of a ship having a central keel and side chines A hull of a ship has a front hull part (10) with a deep V-shape contour having an angle gradually increasing from fore to aft to become 180 degrees in a rear hull part (14) with chines extending according to a side hull contour. The chines, starting fr... | 01/23/2007 |
| 7112299 | Systems and methods for fabricating composite fiberglass laminate articles A method of fabricating laminate articles. A plurality of support templates are arranged to define a part outline corresponding to the laminate article. An outer surface of a primary panel to is secured to the plurality of templates. A secondary panel is arranged in... | 09/26/2006 |
| 7093553 | Super high speed multi-hull watercraft A watercraft with at least one onboard propulsion engine includes at least two hulls and a wing-like deck structure spanning the two hulls (a floating wing). Port and starboard skirts combine with the deck structure to form port and starboard planing channels. The d... | 08/22/2006 |
| 7055451 | Vessel hull A vessel hull having a pair of vents formed in the chine on each side for allowing air to be introduced to the bottom and a pair of downwardly extending fins formed longitudinally along the chine adjacent to each vent. Each vent can be formed by a recess in the chin... | 06/06/2006 |
| 6997128 | Stand-up type personal watercraft A stand-up type personal watercraft comprises a body including a hull and a deck covering the hull from above, the body having a foot deck at a rear portion of the deck, on which an operator rides, a water jet pump configured to propel the watercraft, and a four-cyc... | 02/14/2006 |
| 6966271 | Waveless hull A vessel hull that does not create bow, stern, or transverse waves when moving through the water having an exterior surface that has a substantially constant cross-section along the length of the hull, and an interior surface that substantially encloses a flow chann... | 11/22/2005 |
| 6925953 | Levitation and stabilizing hull system A hull system for boats that includes pairs of longitudinally extending strakes with a cross-section that includes a downwardly extending fin member with an adjacent flat horizontal section to provide running and idle stability. Steps with a projected V-shape pint f... | 08/09/2005 |
| 6923137 | Water sports performance boat hull A water sports performance boat includes a hull having a sharpened angle keel for cutting into the water. Reverse chines are carried on port and starboard sides and extending from a forward portion of the hull to an aft portion for inducing a lifting of the bow at g... | 08/02/2005 |
| 6901873 | Low-drag hydrodynamic surfaces The invention relates to the use of gas cavities to reduce frictional drag on underwater surfaces such as hydrofoils, struts, fins, rudders, keels, propeller blades, ship hulls, underwater bodies, and wetted surfaces in general. Each gas-filled cavity is formed behi... | 06/07/2005 |
| 6895883 | Powered boat hull A hydrofoil craft, particularly a method of economically modifying a conventional hull with cambered foils to obtain and calculate increased lift from dense spray and to achieve enhanced craft performance is disclosed. The present invention improves speed, fuel effi... | 05/24/2005 |
| 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 upon entering the water, the bottom of the vehicle expands outwardly an... | 01/11/2005 |
| 6708642 | Tri-sponson boat hull and method of making boat hulls A boat hull having an upper hull section, a pair of spaced apart substantially parallel elongated outer sponsons extending from a forward portion to a stern portion of a bottom of the upper hull section, the outer sponsons and upper hull section defining a tunnel th... | 03/23/2004 |
| 6679192 | Integrated entry air cushion marine vessel and marine platform A monohull marine platform is provided which includes a plurality of bows each having a flat lower keel. A transverse stern seal is connected to the bows using an inclined lift surface and a pair of outboard seals forming an air chamber. Pressurized air i... | 01/20/2004 |
| 6675736 | Boat having channels formed in its hull A hull of a boat, which is particularly intended for use with a jet pump propulsion system, is provided with two channels formed in the port and starboard surfaces of the hull and displaced from a keel line. Each channel comprises a forward edge that inte... | 01/13/2004 |
| 6648270 | Vehicle A vehicle is disclosed having a hull with a longitudinal, vertical and lateral axis, the hull further having front end and rear ends and first and second sides. A turbofan engine mounted in said hull, said engine having an exhaust duct. First and second f... | 11/18/2003 |
| 6631690 | Planing, air-conveying bottom for boats A V-bottom for fast motor boats with longitudinal reaction walls reacting to a lateral trust from an air-water mixture which are substantially parallel and symmetrical in relation to keel is formed so that the reaction walls are the walls of flat-based gr... | 10/14/2003 |
| 6546886 | Air assisted ship An improved marine vehicle that offers very high efficiencies made possible by pressurized gas cushion(s) disposed between its hull(s) and a water surface is presented. The gas cushion(s), in the ideal arrangement, is supplied with pressurized gas by a po... | 04/15/2003 |
| 6425341 | Boat hull A boat hull represented in a high speed attitude relative to a water surface-has a generally monohull section. A forward keel portion is flattened to form a plank-like planing surface having a replaceable shoe including stability extensions. Main bodies o... | 07/30/2002 |
| 6345584 | Hull for shipping with a mono-three-catamaran architecture A hull for shipping with a mono-three-catamaran architecture comprises a bow point (11) connected to hull sides (14, 15) that ends at a stern (12); a pair of chines (17, 18) disposed laterally to a center line (X--X), a keel (13) extending along the cente... | 02/12/2002 |
| 6293218 | Tunnel-hulled boat A tunnel-hulled boat that has a high degree of maneuverability at low and high speeds with decreased hydrodynamic drag is disclosed. The tunnel-hulled boat is maneuverable in shallow water and when proceeding in reverse. The tunnel-hulled boat is comprise... | 09/25/2001 |
| 6237522 | Bottom structure of personal watercraft A bottom structure of a personal watercraft enhances the running performance of a personal watercraft. A concavo-convex face (21) having very small concave or convex portions for drawing air from an outside of a watercraft is formed on a water contact fac... | 05/29/2001 |
| 6148757 | Hydrodynamic and reinforced catamaran hull design An air propelled boat. It is provided with a pair of catamaran hulls, each having a unique catamaran hull design particularly adaptable for travel over land, water, ice or snow. Each catamaran hull has a pair of centered concave flutes extending from the ... | 11/21/2000 |
| 6067923 | Turbulent stabilizing venturi system A hull configuration for the planar surface region in the tunnel area between hulls(pontoons) in a fishing type catamaran. In the tunnel bottom surface is a raised frontwardly located center section adjacent the bow forms a venturi where low pressure is f... | 05/30/2000 |
| 5934218 | Planing vessel A planing vessel has a hull and a propulsion and control system. The hull has a plane bottom formed of an equicrural triangle in the front and a rectangle at the back, two boards and one or more swell guideways. Each swell guideway has an inclined top lin... | 08/10/1999 |
| 5850793 | Hydrochannel tri-hull A tri-hull using air and water collectively channeled and controlled through its design to enhance speed and stability of the tri-hull as it moves forward through the water. Structural wings connecting the two outer hulls to the middle hull comprise opera... | 12/22/1998 |
| 5570650 | Surface effect vessel hull A surface effect hull particularly suitable for use with a catamaran vessel. The twin hulls each comprise a V-shaped portion and a recess portion that receives pressurized gas therein. The V-shaped bow portion create dynamic lift and the pressurized air p... | 11/05/1996 |
| 5476061 | Power boat hull A power boat hull has an inner running surface with a central running surface and an outer running surface that flanks the inner running surface. The outer running surface forms a channel with concave curvature which extends from the bow to the stern. An ... | 12/19/1995 |
| 5435260 | Pontoon-type boat A pontoon-type boat comprising a deck having opposite sides, and a modified tunnel hull supporting the deck and including a first outer sponson located adjacent one of the sides of the deck, a second outer sponson located adjacent the other of the sides o... | 07/25/1995 |
