Class 114/61.26 - Having specific dimensional or speed ratio (e.g., Froude number, etc.)

Subclass of Class 114 - Ships
Definition: Subject matter wherein a particular structural aspect of
No. of patents: 24
Last issue date: 03/20/2007

Number	Title	Issue Date
7192322	Line design and propulsion system for a directionally stable, seagoing boat with rudder propeller drive system A seagoing boat is driven by at least two rudder propellers and has a hull for transporting cargo or passengers. The rudder propellers are preferably embodied as electric rudder propellers. The hull has an approximately rectangular cross section amidships, to which ...	03/20/2007
7188573	Water jet propulsion watercraft A water jet propulsion watercraft can be provided with: a supporting member that supports a straddle-type seat on a deck thereof. Steering handlebars can be disposed in front of the seat. A space can be formed between the seat and the deck directly underneath the se...	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
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
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
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 sponsons 31 and 33 have horizontally disposed running surf...	04/17/2001
5832856	Monohull fast ship with improved loading mechanism The invention is a monohull fast ship. The ship includes a hull producing a high pressure area at a bottom portion of a stern which rises from a point of maximum depth forward of a longitudinal center of the hull to a point of minimum draft at a transom w...	11/10/1998
5813358	Surface-piercing surface effect marine craft A marine or naval craft having a triple catamaran-type hull (3, 3, 4) from the bottom of which project three respective ventral fins (6, 6, 7) provided with propulsion and control means (14, 17, 18) and which support a load platform (5) having a wing-like...	09/29/1998
5711239	Propeller configuration for sinusoidal waterline ships A ship of a displacement type with a pointed bow and a transom stern, a longitudinal length of L, and defining a base plane and a design waterline plane, the ship comprising: approximately sinusoidal waterlines; a surface extending from the transom stern ...	01/27/1998
5694877	Ship docking vessel An improved ship docking vessel is provided that has a substantially flat, elliptical bottom having a large beam-to-length ratio to provide a shallow draft. In addition, the vessel of the present invention is provided with two Z-drives disposed diagonally...	12/09/1997
5325803	Icebreaking ship For icebraking ships whose forward quarter is designed like a pontoon with an underside rising obliquely forward, and having icebreaking configurations on its sides, the hull can be equipped on both sides over the entire length of the ship with balcony-li...	07/05/1994
5269249	High-speed hydrohull The high-speed hydrohull comprises a portion (1) having, in a longitudinal section, an airfoil profile with a low coefficient of aerodynamic resistance, having a convex upper surface (1B) in order to create, during the movement of the hydrohull, such lift...	12/14/1993
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
5188049	Catamaran boat A powered catamaran boat having displacement hulls (10) that provide stable boat performance. The two hulls (10) are joined by a deck structure (12), forming a tunnel (16) between the two hulls. Each of the hulls is symmetric and has a half entry angle (�...	02/23/1993
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 the hull (11) rises toward the stern (17) and flattens out...	07/14/1992
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 the hull (11) rises toward the stern (17) and flattens out...	01/14/1992
4883011	Hydrofoil keel Disclosed ia a keel for a sailing boat having a hydrofoil section. The thickness to chord ratio of the keel increases from the top to the bottom creating a vortex trap and thus reducing the drag of the keel. A generally horizontal plate at the bottom of t...	11/28/1989
4702186	Sailboat having at least two hulls In a sailboat having at least two hulls which are rigidly connected in parallel spaced arrangement by a platform, the hulls are provided at least at the bow with a bulge-shaped or drop-shaped design which runs into a wedge or blade shape astern. The later...	10/27/1987
4660490	Recreational semi-displacement hull watercraft A watercraft comprising an efficient, directionally stable and maneuverable hull construction useful for recreation and water sports. In a preferred embodiment the hull has an outwardly projecting flange longitudinally positioned along the periphery of th...	04/28/1987
4638753	Ring segment ship hull A ship hull design has circular arc frame lines of equal radius at stations 11-16 symmetrical fore and aft from a similar frame line at a central station 10, and a circular arc keel line 17 of larger radius. The submerged hull configuration is thus simila...	01/27/1987
4389958	Hull for multihulled sailing vessels Multihulled sailing vessels are provided wherein at least one hull, and preferably all hulls, are so shaped that there is a discontinuity in the keel line abaft the midship station of the hull, the rate of change of depth of the hull from bow to stern bei...	06/28/1983
4224889	Multihull sailing craft and hull structure therefor A sailing-multihull hull shape is disclosed which is designed to produce hydrodynamic lift in addition to static buoyant displacement lift. The dynamic lift is generated in direct proportion to the horizontal surface area times the square of the velocity ...	09/30/1980
4079688	Displacement hull A low-drag hull for high-speed displacement type water-craft is constructed with a constant-section keel-less midbody having a length equal to or greater than one-third of the waterline length of the hull, and with a run of less than one-sixth of the hull...	03/21/1978
3981258	Waterski sailboat A hydrofoil sailboat with a slender hull and a foil-shaped sail spaced laally therefrom. The hull has one flat side facing the sail and one convex side. The sail is inclined from the vertical toward the hull and is supported at its base ends by a pair of...	09/21/1976

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Class 114/61.26 - Having specific dimensional or speed ratio (e.g., Froude number, etc.)