Matches 1 - 29 out of 29


Match Document Document Title
7762776 Vortex shedding cyclical propeller  
A propeller having one or more blades eccentrically mounted to a shaft dynamically changes the blade pitch to produce free vortices in a fluid. For extracting energy from a moving fluid, the fluid...
7527009 Method for damping of the rolling motion of a water vehicle, in particular for roll stabilization of ships  
A method for damping of the rolling motion of a water vehicle, in particular roll stabilization of a ship with at least one propeller, comprising a rotating wheel body, which bears axis parallel...
7059923 Cycloidal propeller  
A cycloidal propeller for a boat is provided that has a protective guard with one or more slots therethrough, which run at least approximately perpendicular to the direction of travel of the boat.
6860772 Transverse watercraft propeller  
A propulsive force for propelling different types of water vehicles is developed by four paddles mounted on the planetary gearbox which is rotated by the transversely oriented driving shaft. Each...
6554666 Propulsion apparatus for marine vessels  
An outboard apparatus for propelling marine vessels includes a horizontal driving shaft, a rotated planetary gear-box and four propelling blades disposed over the surface of the water. During the...
6352458 Propulsion system and method  
A method and system for propelling or sustaining marine vessels and aircraft. A propulsive force is developed in a gaseous or liquid fluid as a result of rotation of two pairs of generally parallel...
6244919 Vertical axis and transversal flow nautical propulsor with continuous self-orientation of the blades  
A vertical axis and transversal flow nautical propulsor continuously self-orients the blades. The propulsor includes a plurality of blades rotatable about a vertical axis; a blade supporting plate...
6227483 Wing movement for ornithopters and apparatus of the like  
The wing movement has a gearbox, a reference gear extending through the gearbox and being movably mounted to the gearbox, an input shaft extending through the reference gear and into the gearbox...
6193466 Counter rotating bypass propeller  
A propulsion device having fins rotating in opposing directions which are adjustable to avoid collision yet which provide opposing strokes similar to fishtails. At least one adjustable fin is...
5632661 Device, such as a propeller, for ships which is independent of the main propeller propulsion system and can be used as an active maneuvering mechanism  
Device which is independent of the main propulsion system of a ship, and which can be used selectively as a passive rudder or as an active maneuvering mechanism, and consists of one or more blades,...
5215483 High speed sea train  
A vessel for pleasure or cargo transportation in which the vessel is born by a special flotation method comprising a plurality of circular floats that are designed to be rotated at high speed in...
5100080 Rotor for developing sustaining and propelling forces in a fluid, steering process, and aircraft equipped with such rotor  
The invention relates to a rotor able to develop in a fluid lifting and/or propelling forces and its process for control. Said rotor comprises several profiled blades (9) with axes parallel to the...
4752258 Device for controlling a cycloid propeller for watercraft  
To enable an exact and quick adjustment of the control point of a cycloid propeller ("Voith-Schneider-Propeller"), hydraulic adjustment cylinders are provided with electric proportional valves...
4419085 Amphibious vehicle  
In an amphibious vehicle having driven wheels for movement along dry surfaces and a driving unit for movement through fluids, the improvement comprising at least one of the driven wheels being...
4411632 Waterbound facility powered by cycloidal fluid flow engines  
A waterbound facility, serving the extraction of energy from the water current in which it is moored, consists of a seaworthy vessel, which carries cycloidal turbines, extending their impeller...
4084537 Flank drive for planing hull and displacement craft  
The invention relates to a flank drive for propelling a boat wherein a plurality of propeller housings are rotatably mounted in a wheel body about and in driving engagement with a normally...
3977352 High sea vessel having tanning and cargo carrying capabilities  
A sea going vessel, particularly adapted to serve as a supply and servicing ship for off-shore drilling platforms by fulfilling towing, anchor handling, and cargo carrying functions, wherein the...
3949694 Special submarine devices using a novel integrated lift, propulsion and steering system  
A submarine device having a hull which is substantially symmetrical about a horizontal plane of symmetry and vertical longitudinal and transverse planes of symmetry. An integrated lift, propulsion...
3865060 SPECIAL SUBMARINE DEVICES USING A NOVEL INTEGRATED LIFT, PROPULSION AND STEERING SYSTEM  
A submarine device having a hull which is substantially symmetrical about a horizontal plane of symmetry and vertical longitudinal and transverse planes of symmetry. An integrated lift, propulsion...
3716014 SHIP PROPULSION SYSTEM HAVING SEPARATE PROPULSION UNITS FOR CRUISE AND LOW SPEEDS  
A ship is provided with a propulsion unit for cruising speed and a cycloidal propeller as a second propulsion unit used for slow speeds. The cycloidal propeller has a propeller housing and a...
3559613 PADDLE BOATS  
A paddle boat having a hull and a series of paddle blades mounted on a paddle carrier track centrally disposed fore-and-aft of the hull, the paddle blades being driven around the track.
3476071 SEA-GOING CRAFT  
3241618 Rotary blade propeller with protection against overload  
3134443 Drive and mounting for cycloidal propeller  
3044434 Canned rotor system  
2953113 Structure for protecting the propelling means of ships against floating bodies  
2872891 Sealing means for the driving shaft of cycloidal boat propellers  
2856011 Pitch changing device for paddle wheels  
2837049 River ferry driven by two sail-wheel propellers  
Matches 1 - 29 out of 29