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8122840 |
Transom stern hull form and appendages for improved hydrodynamics
An improved displacement hull form for ships and boats, in one of many possible embodiments includes a transom stern hull form (100F) having a hull underside (120A) that is substantially horizontal...
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7966959 |
Permeable hull to mitigate impact load in water
The invention is directed to an apparatus for mitigating the load impact on a surface watercraft and passengers therein, during high speed travel. The hull includes a damping cavity for mitigating...
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7752986 |
Boat hull design
A shallow draft boat has a flat bottom that extends along a substantial length of the boat hull. The port and starboard sides of the boat that extend beyond the bows are slightly inwardly inclined...
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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...
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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...
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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...
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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...
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6834605 |
Low-resistance boat hull
A hull configuration having a bow and a stern, for use in a single or multiple hull vessel. The hull configuration has a pair of cutting edges, each cutting edge sloping rearwardly, downwardly and...
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6546890 |
Boat hull
The hull has two lateral hull portions (5a, 5b) spaced part with respect to each other which each extends from a respective lateral wall of a front hull portion (1) beyond the rear end (1a) of the...
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5784977 |
Pontoon for watercraft
An improved, planning pontoon boat has first and second spaced apart, elongated pontoons which exhibit a bow end and a stern end relative to the boat. A lower surface of each of the pontoons...
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5730391 |
Universal fluid-dynamic body for aircraft and watercraft
A body configuration for improving the fluid-dynamic performance efficiency of aircraft and watercraft comprises a generally conical upper segment (54) and a generally conical lower segment (56)...
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5499593 |
Boat hull
The invention relates to a boat hull, in particular for high speed crafts, the underside of which has in at least one longitudinal section through or, respectively, parallel to the center plane a...
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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,...
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5357895 |
Illuminated marine advertising vessel
A water borne billboard is provided in the form of a marine vessel designed to accommodate a billboard for display along heavily populated coastlines. The billboard is two-sided, both side being...
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5237953 |
Accessory rail for boats
An accessory rail adapted to be attached to an existing spray rail of a boat bottom is disclosed. The accessory rail includes a mounting portion having a first supporting surface adapted to abut a...
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5220878 |
Hull for sailing ship
A hull for sailing ship makes it possible to sail mostly by sail and by engine when necessity arises. An auxiliary propulsion engine is installed within a ballast portion protruding downward from...
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5218918 |
Convertible powerboat
A convertible powerboat is provided which consists of a hull having a bow and a stern, a power source at the stern of the hull and a mechanism for altering the power source, so that it can be...
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5163377 |
Sailing yacht
High performance sailing yacht designs are disclosed based on a keelless sailing yacht concept having fore and aft cambered foils for leeway control which foils replace the function of the standard...
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5129343 |
Monohull fast ship
A vessel (10) has a semi-displacement or semi-planing round bilge hull (11) characterized by low length-to-beam ratio (between about 5.0 to 7.5) and utilizing hydrodynamic lift. The bottom (15) of...
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5080032 |
Monohull fast sealift or semi-planing monohull ship
A vessel (10) has a semi-displacement or semi-planing round bilge hull (11) characterized by low length-to-beam ratio (between about 5.0 to 7.0) and utilizing hydrodynamic lift. The bottom (15) of...
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4899679 |
Keel structure
A keel structure connected to the hull of a nautical vessel, such as a sailboat, is provided at least at the junction of the vessel hull and the keel with at least one channel extending...
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4781135 |
Ship hull
A ship hull has a general frame form defining a bottom surface and two side surfaces. The bottom surface of the hull has a horizontal bottom section that extends longitudinally of the hull midway...
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4702188 |
Bottom structure of a boat
The invention comprises a stepped bottom structure of a boat, in which the steps (5) are mainly straight. The number of the steps is from 2 to 4, preferably 3, and the angle between the mainly...
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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...
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4550673 |
Hull construction for seagoing vessels
A seagoing vessel comprises a hull having a forwardly projecting bulb at its bow. The bulb includes an upper periphery oriented substantially horizontally and exposed above the water surface when...
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4543902 |
Construction of hull of vessel such as tanker
Disclosed is a hull of a vessel such as a tanker. The hull is basically composed of three hemispheres, at least of two of the hemispheres having an equal diameter, the three hemispheres being...
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4506617 |
Ship
The prow of the ship with a lower power requirement in open and ice-covered water has a front surface which is forwardly inclined at the top over the entire beam of the ship with marginal cutting...
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4445453 |
High speed displacement type hull
A hull is provided including opposite longitudinal upstanding outer sides and a central depending longitudinal displacement-type keel. The forward ends portions of the outer sides and the keel...
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4003327 |
Monolithic ship's body of steel concrete or prestressed concrete
A monolithic ship's body is formed of a hull containing bulkhead partitions disposed in a hexagonal arrangement to form a grid symmetrical about the longitudinal axis of the hull. The partitions...
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4002131 |
Boat hull construction
The hull of a generally shallow draft boat comprises a bottom, sides joined to the bottom by chine portions having rounded outer surfaces, and a transom adjoining the stern edges of the bottom and...
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3930455 |
Boat hull construction
A boat hull construction having a bottom formed with a central longitudinal surface and side surfaces spaced on either side of the central surface. Both the central surface and the side surfaces...
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3881438 |
SEMI-DISPLACEMENT HYDROFOIL SHIP
A combination hydrofoil and displacement hull ship having a T-shaped cross section defining a flat, substantially unobstructed deck for containerized cargo. Hydrofoils are disposed along the lower...
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3822661 |
SHIP'S HULL
A ship's hull having a flat plate mounted above a keel-like portion formed of a rounded bow section, a cylindrical main section, and a conical stern section. The method of fabricating and...
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3776168 |
HIGH SPEED BOAT HULL
A high-speed boat hull for preferred use with a hydrojet engine having a plurality of substantially parallel strakes on the surface of the hull commencing from aft of the bow and all but the two...
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3330239 |
Boat hull with tunneled v-bottom
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3140686 |
Hull of special stabilized shape
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3117544 |
Boat hull
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3084655 |
Boat
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3051115 |
Four point planing type of speed boat hull
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3045629 |
Boat hull
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2991744 |
Boat
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2989939 |
Power boat hull
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2965061 |
Boat hull
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2960957 |
Modified hull form
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2938490 |
Boat hull
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2892435 |
Method for controlling rolling movements of a ship
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