Matches 1 - 46 out of 46


Match Document Document Title
8726823 Boat hull  
A boat hull form includes a dual circular curved outer surface area that is circular concave relative to the plane of symmetry of the hull when viewed horizontally parallel with the plane of...
7748335 Method and apparatus for wake free marine craft  
The hull design for this invention includes a sharp bow, deep V concave shape (“VC”) monohull with a reverse curvature running from a flat straight keel to the upper rail and also encompassing the...
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...
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)...
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...
6318286 Hull shape of personal watercraft  
Provided is a hull shape of a personal watercraft which can enhance speed performance, and still more, can also reduce rolling of a body. A bulging face 12 is formed on an outside part of a rear...
6216622 Boat hull with center V-hull and sponsons  
A high performance boat hull structure is provided which combines a V-hull bottom portion 12 with mid hull sponsons 31 and 33 which form longitudinal tunnels with adjacent structures. The mid hull...
5794556 Hull for small watercraft  
A small watercraft has a longitudinally extending seat for the operator of the watercraft and one or more passengers. Located on each side of the longitudinally extending seat is a side seat which...
5699749 Exhaust system, hull, and speed indicator for watercraft  
A personal watercraft exhaust system, hull underplate, and speed sensor and sponson arrangement. The exhaust system for the engine provides a compact assembly that incorporates a pair of expansion...
5588388 Hull shape of small watercraft  
A small watercraft hull is shaped to prevent spray from being splashed on occupants of a watercraft, to enhance the course stability of the craft during turning, and to reduce the resistance of...
5443026 Boat hull with aft planing members  
A hull for a boat comprising a main hull bottom having a pair of hull bottom sides, each side having a first longitudinal inner edge and a second outer edge, with the hull bottom sides connected...
5394819 Vee bottom structure for boat  
A Vee bottom structure for a boat includes a stern, a bow and sides which are symmetrical relative to a keel line. The bottom structure comprises a part extending from the stern towards the bow....
5349919 Recreational boat  
A recreational boat comprising an aft cockpit, a cabin in front of the cockpit, the cabin having a top surface, side walk ways on the port and starboard sides of the cabin, the walk ways having...
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...
5199366 High-speed boat  
A fast watercraft has a central body (11), the V-shaped bottom frames (15) of which become flatter from the foreship towards the stern. In the stern region two mutually symmetrical lateral annexes...
5191854 Boat  
The boat has a flap (1) forming a part of its V- or spoon-shaped bow and being unfoldable therefrom. This flap is supported by means of projections (9a,9b) arranged on both of its sides on swivel...
5125352 Boat hull with bottom sloping upwardly and rearwardly between sponsons  
A longitudinally extending boat hull having a forwardly tapering nose section and an aft end section that extends laterally comprising the hull being substantially V-shaped in cross section from...
5063868 Boat hull for V-bottom powerboats  
A powerboat hull construction with greatly enhanced performance characteristics is provided. The boat hull construction includes a bow having a forward nose, a stern which includes a transom, and...
5046439 Hull for an inboard powered boat  
An improved hull is disclosed for use on an inboard boat of a relatively increased length, the hull having a generally deep V-shaped bottom surface at the bow slowly transitioning to a relatively...
5031556 Marine hull  
The marine hull has a forebody, a transom, and a bottom extending therebetween having pairs of upwardly formed channels between the forebody and the transom. The channels of each pair diverge...
5016552 Boat hull  
A boat hull having inner ribs and outer chines interconnected by an inverted V-shaped planer surface and with the ribs and outer chines being pronounced at both sides of the stern of the hull and...
4958585 Boat hull  
A boat hull is provided with a unique V-shaped bottom surface to increase lift, to reduce drag, and to maximize speed. The deadrise angle of the V-shaped bottom increases progressively from the...
4903626 Planing motor boat hull  
A planing boat hull including a bow, a transom, a keel and an underside having: a. a transverse step adjacent the transom which extends partially the width of the underside; and b. a recess...
4843988 Stepped bottom for boat  
A design for the bottom of a boat is provided which has particular applicability for the case of single-screw planing boats. The invention comprises stepped regions in each after outboard corner...
4813365 Double deadrise with multiple reflex chine boat hull structure and engine mounting system  
The double deadrise with multiple reflex chine boat hull structure and engine mounting system relate to designs for power boat hull structures and engine mounting systems. The hull structure...
4774902 Mid-planing hull  
A mid-planing hull for a fast, sea-going vessel in which the centers of buoyancy, gravity, and hydrodynamic lift at planing speeds substantially coincide amidships. In a preferred embodiment, the...
4649851 High speed power boat for calm and rough seaways  
Hydrocraft, capable of maintaining comfortable seaworthy performance at both low and high speeds, in both calm and rough seas, wherein its hull form coordinates high efficiency of at least two...
4619215 Dual step, vee type planing hull for power boats  
A deep vee entry hull is disclosed and includes a central running surface flanked in the after portion thereof, by inboard, intermediate and outboard running surfaces. The central and inboard...
4566397 Crew boat  
A multipurpose crew and resupply vessel for use in resupplying off shore installations with men, food and supplies, as well as fuel, water and all of the suplies needed by that offshore...
4563968 Boat with improved hull  
A boat having a hull which has straight lines in the hull plan normal to the central axis of the keel, the straight lines all making the same acute angles with the keel center line. Preferably the...
4492176 Boat hull  
A motorized pleasure boat having an essentially V-shaped hull. Pairs of strakes are placed on each side of the hull bottom to reduce side slipping and to increase planing efficiency. Stern...
4465009 Vee type planing hull for small power boats  
High speed turning characteristics of a small vee type planing hull are increased by the use of after, outboard running surfaces which are concavely configured.
4398483 Vee type planing hull with AFT tapered wedges  
Porpoising control in a high speed planing hull is effected during straight, on plane running and in turning maneuvers by a novel configuration of aft tapered wedges bridging the aft, exit ends of...
4361102 Vee type planing hull for power boats  
High speed turning characteristics of a vee type planing hull are increased by the use of after, outboard running surfaces which are concavely configured and include transverse wedges across the...
4233920 Vee hull construction  
The performance characteristics of a vee type planing hull are significantly increased by a combination of features for reducing drag and increasing attitude control.Exemplary of the former are a...
4192248 Scooped boat hull having tri-keel surfaces  
A boat hull having a bow and stern and requiring relatively small draft, having low frictional drag characteristics for high speed, stable performance, wherein the hull has a scooped configuration...
3862612 Vessel Hulls  
A hull for high speed marine vessels having a keel which is higher at the bow than at the stern and a center of gravity in the aft half of the hull is disclosed. Hulls in accordance with the...
3807337 BOAT HULLS  
A boat hull, part of which (preferably the forward section) is shaped as a twin keel, and part of which (preferably the rearward section) is shaped as a single keel.
3709178 BOAT AND TRAILER  
The boat as herein disclosed is primarily intended to be utilized with a trailer designed, particularly, to receive cooperating means on the boat hull whereby the trailer and boat, particularly,...
3625173 HULLS FOR POWER BOATS  
A hull for a power boat has a bottom configuration comprising two subhulls providing a catamaran-type structure, with an additional intermediate subhull, and this last is formed on the bottom with...
3369512 Hull for boats  
3303809 Boat hull  
3237581 Boat hull  
3040687 Boat bottom  
2989939 Power boat hull  
2915031 Modified v-bottom boat  

Matches 1 - 46 out of 46