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| Number | Title | Issue Date |
| 8166903 | Deadrise-altering adjunct for marine hull bottom As typically embodied, the present invention's add-on device includes two wedge-shaped structural components that are oppositely congruent and symmetrically connected. In profile, the device describes a pair of nearly triangular quadrilateral figures that are enanti... | 05/01/2012 |
| 8051792 | Boat body and boat including the same A boat body for a boat includes a projecting portion arranged to support one or more outboard motors at a position spaced upward and rearward from a transom. The projecting portion extends from a rear portion of the transom of the boat body, and the projecting porti... | 11/08/2011 |
| 8011313 | Hull structure A hull structure has a chine serving as a boundary between a broadside and a bottom of a hull. The hull has a configuration in which the hull has a maximum depth in a vicinity of a central position of the hull, the chine is provided so that its level position become... | 09/06/2011 |
| 7984683 | Compound displacement wave form hull design for green vessels Compound hull for electric-powered, cruiser-type vessels having a unique hard chine displacement wave form hull that recycles wave energy to minimize drag and results in lowered power requirements for long-period cruising at displacement hull speeds. The inventive h... | 07/26/2011 |
| 7802533 | Marine vehicle having pre-swirl generator for generating pre-swirl flow A marine vehicle includes a hull, a rudder, a propeller, a swirl generator mounting region provided on an outer surface of the hull and located on a port side or a starboard side where a rotation direction of the propeller is downward, and a pre-swirl generator havi... | 09/28/2010 |
| 7487736 | Hybrid boat hull A hybrid boat hull. In a first embodiment, the hybrid boat hull comprises a first and second outer elongated hulls each curved inwards to respectively define first and second keel fins which provide buoyancy and act as inclined hydrofoils when the hybrid hull is run... | 02/10/2009 |
| 7398740 | Multi-mission/purpose ground-effect craft derived from a common modular platform A multi-mission/purpose ground-effect craft is provided which is derived from a common modular platform which includes a hull; an inner floor structure adapted to be installed over the hull; a body adapted to be attached to at least one of the top surface of the hul... | 07/15/2008 |
| 7380515 | Anti-cavitation system An anti-cavitation plate actuating system incorporates pressurized air selectively applied through a control valve to an air assist cylinder. The cylinder, when pressurized, applies force to anti-cavitation plate return springs; the force is not sufficient to expand... | 06/03/2008 |
| 7370596 | Kayak having stabilizing flares A kayak comprises a hull with a relatively narrow cross sectional underwater width for increasing speed and efficiency of the kayak moving through water and first and second pairs of convex surfaces for providing kayak stability. ... | 05/13/2008 |
| 7353763 | Ship A ship includes semi-bottoms that transition into the ship's sides, and a keel that extends downwardly from the semi-bottoms. The keel and semi-bottoms form an equivalent of 120 degree therebetween. Each of the sides is located in the same planar surface with the ap... | 04/08/2008 |
| 7347154 | Amphibious craft The present invention relates to an improved amphibious craft or vehicle and, in particular, but not exclusively, to a craft or vehicle that may be used for commercial and rescue tasks in a great variety of weather conditions. To achieve this, an amphibious vehicle ... | 03/25/2008 |
| 7337743 | High lift authority marine control system A control surface system for a marine vehicle is provided. The control surface system includes a control member having at least two control portions fixedly connected at a predetermined spacing from each other. The control portions each have opposed surfaces, with t... | 03/04/2008 |
| 7338336 | Watercraft hull with adjustable keel A watercraft hull having a pair of laterally spaced propulsion tunnels located on opposite sides of its keel, with said tunnels being open downwardly towards the water, includes a movably mounted keel section located between said propulsion tunnels to prevent water ... | 03/04/2008 |
| 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 |
| 7311059 | Watercraft hull with entrapment tunnel A watercraft hull has at least one bent entrapment tunnel with an aft portion whose tunnel ceiling is at a higher elevation than portions of the tunnel ceiling immediately in front of it to provide a negative angle of attack with the free surface at design planing s... | 12/25/2007 |
| 7296529 | Fluidynamic lift combined array, technology A Fluidynamic Lift Combined Array, Technology for flying, and/or land, and/or other motor vehicles comprises: a. an aerodynamic structure of chord-telescopic smooth-united multisegment lifting wings; and/or b. a se... | 11/20/2007 |
| 7281484 | Multimission transonic hull and hydrofield A transonic hull having a bow, a stern, a longitudinal length therebetween, side surfaces extending from the bow to outboard portions of the stern, a lower surface extending between the side surfaces, the transonic hull having a submerged volume with an approximatel... | 10/16/2007 |
| 7225752 | Power boat with improved hull A power boat having an improved hull including concave aft sections, and which hull is capable of operations at a wide range of speeds with low relative horsepower for vessel weight and improved fuel economy is disclosed. In one exemplary embodiment, the boat is a 3... | 06/05/2007 |
| 7207283 | Marine craft Marine craft has a crushable frontal impact protection structure, comprising transverse bulkhead protecting passenger area; longitudinal crushable tubes; and transverse member. Webs and strengthen tubes, which may be made of extruded, heat treated aluminum; stainles... | 04/24/2007 |
| 7207285 | Variable hybrid catamaran air cushion ship A vessel (10) designed to operate efficiently as both a catamaran and air cushion vessel can travel at low speed (e.g. Froude number (Fn)=0–0.3) in a catamaran or displacement mode and at high speed (e.g. Froude numbers (Fn)=0.3 or more) in an air cushion o... | 04/24/2007 |
| 7201111 | Boat hulls with planing sections Boat hulls or assemblies have sequences of groups of downward-facing sections such as planing sections. A sequence includes a lowermost group and supplemental groups above it. Each group could, for example, be a pair, and the pairs could be port-starboard symmetrica... | 04/10/2007 |
| 7146924 | Kayak ballast system A kayak ballast system is comprised of a cradle member configured to be fitted within the interior of the kayak. The cradle member defines a receiving unit for securely receiving weight, thereby providing a ready means for adding weight to a kayak and increasing the... | 12/12/2006 |
| 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 |
| 7013826 | Hybrid catamaran air cushion ship A vessel (10) designed to operate efficiently as both a catamaran and air cushion vessel can travel at low speed (e.g. Froude number (Fn)=0-0.3) in a catamaran or displacement mode and at high speed (e.g. Froude numbers (Fn)=0.3 or more) in an air cushion or ... | 03/21/2006 |
| 7005756 | Marine power generation and engine cooling An on-board marine electrical power generator (14) containing a conventional four-stroke, water-cooled outboard motor engine (50) coupled to an alternator (52) upon a transportable frame (44) suitable for mounting on-board a boat. In one ... | 02/28/2006 |
| 6994049 | Power boat with improved hull A power boat having an improved hull including concave aft sections, and which hull is capable of operations at a wide range of speeds with low relative horsepower for vessel weight and improved fuel economy is disclosed. In one exemplary embodiment, the boat is a 3... | 02/07/2006 |
| 6964240 | Hull for high speed water craft The application relates to water craft hulls having improved hydrodynamic stability. A hull (1) is claimed in which the center of gravity (Cg) is substantially vertically aligned with the center of hydrodynamic lift (Cp) of a lifting sur... | 11/15/2005 |
| 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 |
| 6912967 | Hybrid watercraft A watercraft steered under power by water-jet propulsion utilizes a water intake ramp in its hull to create a nozzle-like effect to accelerate water loading to the jet pump through a ventral water inlet when under power. The hull has a pair of longitudinal stabilize... | 07/05/2005 |
| 6872107 | Boat hull tunnel extension A boat hull having a tunnel structure along the bottom of the hull in the form of a truncated hollow partial cone indentation and extension parallel to the keel of the boat. The tunnel has a cone shape and has a truncated end attached to the bottom of the hull near ... | 03/29/2005 |
| 6805067 | Contour stern flap A stern flap has a “contour” shape which facilitates installation thereof upon the curved stern of a ship. The stem flap's lower surface includes an intermediate region and two curvedly tapered end regions. The intermediate region is delineated forwardly by a cu... | 10/19/2004 |
| 6668743 | Semi-displacement hull A hull form which operates in the speed ranges where both planing and wave making affect hull resistance is presented with a configuration which reduces wave drag and improves performance in very fast and ultra-faste speed ranges. The specific distributio... | 12/30/2003 |
| 6666160 | High aspect dynamic lift boat hull An unventilated, stepped hydroplaning boat hull has at least one midship step. Two separated wetted planing surfaces are thereby established--a forward surface just forward of the step and an aft surface just forward of an aft edge of the hull. The angles... | 12/23/2003 |
| 6666162 | Aluminum hull boat with extruded running surface An aluminum hull boat includes a running pad formed through an extrusion process. The running pad includes a lower planing element at least a portion of which is in contact with the water when the boat is at planing speed, and opposed sidewalls which atta... | 12/23/2003 |
| 6629507 | Chine system for a boat hull A boat hull comprising a bottom panel that makes up the bottom of the boat hull. A first chine member has a base edge and an extended edge. The first chine member is coupled to the bottom panel at the base edge and protrudes generally in a vertical direct... | 10/07/2003 |
| 6606959 | High speed drag reducing ventilation for marine vessel hulls Spaced cambered wedges having flow diverting surfaces thereon are deployed from retracted positions within the smooth surfaced sides of a marine vessel hull undergoing water travel above a high speed, under which air ventilated cavities are established by... | 08/19/2003 |
| 6412434 | Small watercraft hull construction A hull for a planing type watercraft has a rear portion that includes one or more steppers and a step plate fixed to the hull rearward of the first stepper so as to create a gap between a leading end of the step plate and the corresponding stepper. The st... | 07/02/2002 |
| 6363877 | Power boat The power boat includes a bow and a stern, a hull with a longitudinal dimension extending from the bow to the stern, and a platform extending across the stern for enabling boarding of the boat, the platform being located at or slightly above the water sur... | 04/02/2002 |
