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| Number | Title | Issue Date |
| 8109221 | Single drive catamaran hull The catamaran hull includes a pair of substantially parallel separate hulls, connected by an intermediate hull portion, wherein only one of the separate hulls includes a propulsion assembly. Each hull is asymmetric, but differently configured, such that the off-cent... | 02/07/2012 |
| 8065970 | High-speed multihull boat A high-speed, multi-hull boat that includes at least three hulls (3, 4), and in which, with the boat being considered to be floating and stationary on a stretch of calm water (1), the cross sectional areas (Si) of the space (18) forme... | 11/29/2011 |
| 7578250 | Watercraft with wave deflecting hull The invention is directed to a watercraft hull design that comprises a hull having a bow, stern, top, and bottom. A wedge-shaped wave spreading system is located at a forward portion of the craft. The wave-contacting surface planes of the wave spreading system are p... | 08/25/2009 |
| 7281488 | Seat for shallow draft floating watercraft A molded seat for individually propelled watercraft having a deck with sloped sides extending there from and a plurality of opposing grooves of a defined shape formed in the deck and sloping sides. The seat has at least 4 legs to integrate into corresponding grooves... | 10/16/2007 |
| 7275490 | Shallow draft floating vessel A catamaran-like one piece molded stable watercraft with sloping sides and a graduated sloping channel for supporting an individual and up to 600 pounds of gear without flipping and wherein the watercraft has a draft of no more than 6 inches fully loaded and less th... | 10/02/2007 |
| 7204280 | Vehicle cover The present invention provides a vehicle cover having a main cover portion with a plurality of peripheral edges, a fastening band attached along the plurality of peripheral edges which runs across the windshield, a pair of fastening band extensions extending under t... | 04/17/2007 |
| 7188575 | Watercraft with wave deflecting hull The invention is directed to a watercraft hull design that comprises a hull having a bow, stem, top, and bottom. A wedge-shaped wave spreading system is located at a forward portion of the craft. The wave-contacting surface planes of the wave spreading system are po... | 03/13/2007 |
| 7168381 | Vessel hull and method for cruising at a high Froude number In one aspect of the invention, a vessel has a liquid-plane greater than one meter2/(metric ton)2/3 and includes a hull having a total length and a plurality of hull portions each having a length that is less than the total length. Each hull po... | 01/30/2007 |
| 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 |
| 7111569 | Individual propelled water craft An individual propelled catamaran watercraft with sloping sides and sloping channel adapted for supporting an individual without flipping and having a draft of no more than 3 inches. ... | 09/26/2006 |
| 7104209 | Hybridhull boat system A hull is formed of a forward section, a rearward section and intermediate sections there between. The forward section is in a generally triangular configuration. The forward section has a forward-most point. The forward section has rearwardly extending sides. The r... | 09/12/2006 |
| 7055446 | High-Froude hull ship A large-waterplane-area ship operable to efficiently operate at a high-Froude velocity. In one embodiment of the invention, a large-waterplane-area ship includes a hull structure having a plurality of exclusive hull portions protruding from a main body of the hull s... | 06/06/2006 |
| 7013819 | Marine catamaran platform A marine catamaran platform especially advantageous for small boats (in the three meter range) in which two substantially identical hulls are surmounted by superstructures that are joined by arced beams that lie in a plane that forms an acute angle of between 30° a... | 03/21/2006 |
| 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 |
| 6941888 | Hybrid ship hull A marine vessel which includes a bow section, a stern section and a mid-section, wherein the bow and stern sections are of different hull construction from that of the mid-section which has a curved outer shape; the skin of the hull of the bow and stern sections are... | 09/13/2005 |
| 6883450 | Boat hull design A multi-hull design suitable for various size boats ranging from racing craft to the large military ships. The apparatus is a polygonal boat hull apparatus having a bow and stern wave penetrating feature. The hull is made from triangular-shaped essentially flat pane... | 04/26/2005 |
| 6598552 | Pontoon having a cross section with a non-uniform diameter and boat having same A pontoon includes an elongated body of non-uniform diameter. The body is dimensioned and configured to provide a non-uniform buoyant force to a boat along at least a majority of a length of a boat. Also provided is a pontoon boat including pontoons as de... | 07/29/2003 |
| 6338307 | Open passage water ballast twin hull apparatus A sea friendly hull shape invention provides the benefit of water ballast without the penalty of carrying that ballast. There are open ballast passages which can be in the shape of pipes, or other similar shapes, through which water flows continuously whe... | 01/15/2002 |
| 6311635 | Monohull having stern stabilizers for a high speed ship The technical field of the invention is that of ship building, more particularly making ship hulls. A monohull with stern stabilizers, also known as a pseudo-trimaran, for constituting a very high-speed ship comprises a central float (1) and two shorter s... | 11/06/2001 |
| 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 |
| 6112687 | Ship hull A ship hull comprises at least one longitudinally directed displacement body which is symmetric to the longitudinal axis of the ship and which is adjoined by gliding surfaces at least at both longitudinal sides or, as the case may be, on all sides, being ... | 09/05/2000 |
| 6095073 | Multihull boat A boat that can be rowed, sailed and motor driven, and has a pair of parallel elongated pontoons and a normally above-water boxlike structure which serves to connect the pontoons, to provide a cockpit for the crew, and to provide a third hull for suppleme... | 08/01/2000 |
| 6085677 | No/low wake, high speed power catamaran hull A catamaran multihulled craft with each hull bottom having a multifaceted inverted V shape with all bow to stern lines, IE: chines, angle change lines and center lines being parallel and rising to the deck line at the bow, and identical for each hull, and... | 07/11/2000 |
| 6085678 | Water vehicle The water vehicle has two parallel surfboards arranged with a distance between them, connected to one another with the help of a frame. The two legs of the frame arranged in the direction of travel have flexible elements, and the frame forms a diagonally ... | 07/11/2000 |
| 6009820 | Semi-submersible vessel An uncrossed-braced, column stabilized semi-submersible and improved methods of operation of the same are disclosed. The semi-submersible vessel provides necessary strength to resist hydrodynamic forces via a unitized support system. Improved elliptically... | 01/04/2000 |
| 5988087 | Pontoon for boats A pontoon (20) for a boat (22) includes a base member (24) and a closure member (26) which are attached to form a U-shaped performance structure and a cylindrical support structure. A foam (74) filled nose cone (29) is connected to front ends (36,46) of t... | 11/23/1999 |
| 5878682 | Watercraft and hull systems The invention includes new hull systems and watercraft. In particular, the invention provides a watercraft hull that has a pivot axis forward of the hull waterline fore-aft center line. That pivot axis will be the deep water point of the hull and provides... | 03/09/1999 |
| 5694878 | Semi-submerged catamaran In a semi-submerged catamaran comprising at least two submerged bodies, struts mounted in a standing position on respective submerged bodies and a hull part supported by the struts above the water surface, motion preventing fins are fixed in a submerged p... | 12/09/1997 |
| 5673641 | Wind-propelled hydrofoil A wind-propelled hydrofoil comprising a forward assembly with at least partially submerged forward foils and a fully submerged aft foil. The forward foils (43, 44) are such that the resultant of the vertical forces drops when said assembly is translated v... | 10/07/1997 |
| 5570649 | Boat hull A boat hull structure comprising a pair of laterally-spaced hulls having V-shaped bottom portions that are each symmetrical about a vertical plane extending through its longitudinal axis. A channel defined in each bottom portion that extends substantially... | 11/05/1996 |
| 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 |
| 5535690 | Pitch stabilized displacement vessel A pitch stabilized vessel includes at least one displacement hull constructed for high propulsion speeds of, for instance, 35 knots. The hull is configured so as to locate the pitching center of the vessel far forwards on the hull, for instance, at a poin... | 07/16/1996 |
| 5526762 | Power planing catamaran A powered planing catamaran has a pair of asymmetric V-bottom hulls such that the inner surfaces of each of the hulls defines less of a deadrise angle than the outer surfaces. The inner surfaces define the primary running and planing surfaces. The bridgin... | 06/18/1996 |
| 5520130 | Boat having hull members with separate fore and aft planing surfaces A boat having a pair of hull members with separate fore and after planing surfaces. Each one of the hulls has a forebottom surface, an aftbottom surface and a midbottom surface. The forebottom surfaces and the aftbottom surfaces have positive trim angles.... | 05/28/1996 |
| 5365869 | Catamaran for pastime, model construction or racing in any competition rating, with induced hydrodinamic stability A catamaran for pastime, model construction or racing with induced hydrodynamic stability, having a hull with a board (1) and a pair of longitudinally extended semi-immersible appendages (2, 3; 8, 9; 13, 14; 24, 25) arranged parallel to each other symmetr... | 11/22/1994 |
| 5308268 | Humanly operable, recreational, readily disassemblable water cycle To permit rapid assembly and disassembly of the water cycle so that, when disassembled, it can be stored or transported in minimum space. The cycle, which has at least three flotation bodies (2a, 2b, 2c), which are elongated or torpedo shaped, is formed o... | 05/03/1994 |
| 5231949 | Dihedral tunnel boat hull This invention is an improved boat hull design for stable operation as a planing-type hull in a wide range of water conditions. The hull is comprised of a substantially V-shaped central hull portion and a pair of adjacent side floats, one on each side of ... | 08/03/1993 |
| 5211126 | Ship or boat construction having three hulls A catamaran design has a third hull positioned between the conventional hulls. The third hull has a length equal to about two-thirds of the length of the conventional hulls, and a recess is formed in the underside of the deck aft of the third hull. The re... | 05/18/1993 |
| 5191848 | Multihull vessels, including catamarans, with wave piercing hull configuration A catamaran vessel with a pair of spaced apart, parallel hulls which are made of sealed watertight configuration of composite marine material and interconnected by a deck and cabin structure with depending stilts joined to the hulls. The hulls have a wave... | 03/09/1993 |
| 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 |
