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8943988 Dual rudder watercraft steering control system for enhanced maneuverability  
A steering control system for ski boat with an inboard motor and a single, non-steerable propeller. The control system augments the traditional aft rudder with a forward rudder (located...
8857358 Rudder group for boats  
Rudder group (10) for boats (100) comprising a rudder blade (12) releasably coupled to a rudder pin (11), the rudder pin (11) being able to rotate along an axis (A) passing on the plane of the...
8813665 Dual-rudder mechanism for performance sailboats  
A dual-rudder control mechanism suitable for use in the sailboats (1), comprising an extendable pivot (8) having each end a respective rudder, mechanism (20) for extending the pivot (8) length,...
8661998 Rudder and ship-like object having such a rudder  
The invention relates to a rudder for maneuvering a ship-like object, the rudder comprising a main rudder blade having an upstream end and a downstream end, the rudder being rotatably mountable to...
8626392 Vehicle running control apparatus  
A vehicle driving control apparatus is provided at least with: a rudder angle varying device capable of changing a relation between a steering angle, which is a rotation angle of a steering input...
8612095 Vehicle driving control apparatus  
A vehicle driving control apparatus is provided at least with: a rudder angle varying device capable of changing a relation between a steering angle, which is a rotation angle of a steering input...
7895959 Differential tiller arms for marine vessels  
Advanced steering system designs for marine vessels which incorporate non-linear tiller arms for rudder control, designed for creating different turning radii for discrete rudders. Differential...
7721665 Hull and steering mechanism for a marine vessel  
A combined hull and steering mechanism for a marine vessel has a substantially rectangularly-shaped upper hull joined to a lower hull that is dual-tapered from its sidewalls to both its forward...
7610870 Interlocking platform boats  
Platform boats intended to be used for motorized boating and for forming-up with adjacent similar boats to form a continuous and contiguous mat of boats for socializing, fishing etc. The adjacent...
7536968 Hull and steering mechanism for a marine vessel  
A combined hull and steering mechanism for a marine vessel has a substantially rectangularly-shaped upper hull joined to a lower hull that is dual-tapered from its sidewalls to both its forward...
7370593 Windsurfing catamaran vessel  
An improved windsurfing catamaran type vessel. The illustrated vessel has an improved steering mechanism that includes a relatively stiff but bendable plastic rod that is directly received within...
7316194 Rudders for high-speed ships  
A high-speed water vessel including a steering arrangement for reducing cavitation and its effects. The arrangement includes a twisted rudder pair located downstream of a high-speed propulsor. The...
7144282 Contoured rudder maneuvering of waterjet propelled sea craft  
The stern hull portion of a surface ship or underwater sea craft is provided with a waterjet propulsion unit having an outlet end from which a discharge propelling waterjet emerges underwater and...
6976444 Marine vessel propulsion and tubular rudder system  
A water craft propulsion and steering system is disclosed in which a pair of tubular steering rudders are mounted one on the front end and aft end, respectively, of a propeller shroud tube. Power...
6951180 CBTF sailing yacht main engine drive system  
A canting ballast twin foil (CBTF) sailing yacht constructed according to the invention includes a sailing hull, a ballast, a ballast-supporting structure, and an onboard ballast drive system. The...
6886485 Twin-rudder system for large ship  
In such a high lift twin-rudder system that: a pair of high lift rudders 1, 2 is arranged behind a single propeller 3; the respective high lift rudder 1, 2 has a top end plate 6, 7 and a bottom...
6880478 Two degree of freedom rudder/stabilizer for waterborne vessels  
A method and apparatus for steering a vessel comprising a member rotatable around a first and a second axis.
6549831 Rudder angle indicator system with active sector sensing  
The rudder angle indicator system utilizes a low cost potentiometer coupled to the rudder to provide a signal proportional to rudder angle. A stepper motor positions, in open loop arrangement, the...
6199499 Manually operated catamaran vessels, steering apparatus for such vessels and method of steering such vessels  
A catamaran-type sailboat with a steering mechanism preferably located at the level of the catamaran deck. This steering mechanism may include a rotatable or generally linearly moveable pad or...
6178907 Steering system for watercraft  
A steering system is provided for watercraft having a hull and first and second thrust producing devices capable of providing forward or reverse thrust relative to the hull, wherein the first and...
6171159 Steering and backing systems for waterjet craft with underwater discharge  
The inventive apparatus exercises control of the water flow which is discharged from a marine waterjet propulsor. Typical inventive embodiments comprise plural horizontal and plural vertical...
6047656 Retractable front rudders  
Retract front rudders to be used as a steering system for small water craft such as canoes and kayaks. The system has a pair of angled retractable rudders mounted in a forward/bow portion and...
6032602 Stabilizer for ocean going vessels and a stabilizer for other ocean going bodies, such as ships  
A device for guiding the flow of floating objects. The device is connected to a hull of the floating object and, depending on the flow, feeds hydrodynamic forces into the hull. The device shows a...
6026759 Adjustable leveling fin rudder method and apparatus for powerboats  
Method and apparatus for leveling or adjusting a power-boat's average angle of bank or list about its roll axis RA regardless of side wind or off-center loading to improve passenger comfort,...
5592892 Multihull windsurfer  
A multihull windsurfer providing increased sailing stability, exceptional steerability and providing a moveable mast allowing for an adjustable sail carrying capacity. The preferred embodiment is...
5488919 Canted rudder system for pitch roll and steering control  
The invention is directed to a system for stabilizing a marine vehicle against rolling and pitching motions and for providing steering control to the marine vehicle. The system includes at least...
5445100 Dual rudder system for trimming planing-type hulls  
An improved dual rudder system for use with marine vessels is provided that provides both steering and attack angle adjustment. Specifically, the dual rudder system of the present invention may be...
5359956 Steering system for high performance powerboats  
A steering system for a high performance powerboat includes a secondary rudder which is located along the hull of the boat forward to the main aft rudder. An actuator is attached to the main...
5313905 Twin wing sailing yacht  
A twin wing sailing yacht having a pair of wing appendages depending from a canoe or hull, the wing appendages including structures which support at their lower ends a fore and aft extending...
5247898 Water-ski board  
A ski board is arranged to include a polymeric skin envelope housing a foam core, to include a rear wall having a plurality of parallel troughs orthogonally intersecting the rear wall canted...
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...
5120249 Combination catamaran boat and cross water ski system  
A combination catamaran boat and cross water ski system includes left and right hulls, a bridging deck, and a steering system. Each hull includes a rudder in its keel portion and a rudder plate on...
5094182 Enhanced ride plate and steering apparatus for jet drive watercraft  
An improved ride plate apparatus for attachment to the lower aft portion of a personal watercraft, in place of the normal ride plate, and including a rudder mechanism pivotally connected to the...
5088431 Sailing vessels  
Proa sailing vessel including a pair of spaced hulls comprising a windward and a leeward hull, a crossbeam assembly interconnecting the hulls and a fixed mast assembly with its lower end supported...
5058521 Submarine with keel wing for effectively countering tendency to snap roll in high speed turns while fully submerged  
A submarine hull which has a half wing-like sail which projects vertically upwards, is provided with a keel-wing that also is half wing-like, but projects vertically downwards. By preference the...
4996935 Stable racing catamaran with hydrofoil qualities  
A stable racing catamaran with hydrofoil qualities is disclosed. The stable racing catamaran with hydrofoil qualities includes a deck, a pair of forward pylons affixed to the deck, a pair of aft...
4979455 Control surfaces  
A control surface design for submerged vehicles. The control surfaces are vably mounted or radially extending support members such that the wake created by the deflection of the control surfaces...
4949662 Steering device for small sized jet propulsion boat  
An improved steering arrangement for a jet propelled watercraft including a rudder carried by the forward portion of the hull and which is out of the water at high speeds and submerged at low...
4919630 Inboard drive system for a marine craft  
The present invention is directed towards a drive system for a marine craft of the type wherein the power plant or drive engine is located inboard of the craft and the overall craft is designed...
4895093 Manoeuvring device for boats  
The invention is a manoeuvring device for boats, comprised of a pair of pivotal tube plates (17, 18) mounted outside a propeller 14 and, under normal operation, forming a tube (19) around the...
4890568 Steerable tail buoy  
A remotely controllable tail buoy for use in marine geophysical prospecting operations is disclosed. The tail buoy is attached to the trailing end of one or more seismic streamers towed by the...
4860679 Ice breaker vessel  
An ice breaker vessel and a method for increasing maneuverability and protecting the propellers against broken ice when going backwards. The ice breaker has two stern propellers and a steering...
4831954 Fin tab device for marine vessels  
A fin tab device for a marine vessel driven by a propeller is provided with a fin-shaped main fin tab member and a fin-shaped sub-fin tab member, both tab members extending downwardly from a...
4782779 Barge lattice skegs  
A skeg unit mounted on a raked barge stern counter is a box lattice structure including an athwartships row of upright generally parallel vanes having their upper ends connected by an athwartships...
4781633 Retractable drive mechanism for marine vessels  
Disclosed is a drive assembly for mounting on a marine vessel, movable between first and second configurations. In the first configuration, the drive assembly, which may include a propeller, is at...
4771717 Rudder for a water vessel  
A rudder assembly which includes a frame formed by upper and lower horizontal flanges which are connected to a rudder post. A pair of parallel vertical sidewalls are connected to the upper and...
4744776 Pedal craft  
A water craft includes two parallel, spaced-apart pontoon hulls, and a superstructure bridging between the pontoon hulls. A propeller is operatively connected to foot pedals so that the propeller...
4683830 Ship's steering systems  
A rudder system is provided on a vessel with an open propeller or no propeller, comprising at least three rudders coupled to turn in unison and operating as a cascade. The rudders are mounted on...
4635577 Hydroplaning wing sailing craft  
A hydroplaning wing sailing craft comprising a single buoyant hull having mounted transversely across the hull a hydroplaning wing having forward sweep and inverted gull wing shape. The wing...
4584957 Multi-hull sailing vessel with variable lift  
A double-ended two hull sailing vessel has a main hull and an auxiliary hull, where the distance between the auxiliary hull and the main hull can be varied for controlling heel. The mast is...

Matches 1 - 50 out of 101 1 2 3 >