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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7353764 | Corvette ship-type equipment system A corvette ship-type equipment system includes standard-equipment segments, such as an energy generator, an energy distributor, a drive and an automation segment, and a hull which is adapted to the size and specific requirements on the corvette ship-type equipment s... | 04/08/2008 |
| 7341496 | Fast sea-going ship with a double bottom and a waterjet drive The invention relates to a high-speed, sea-going ship comprising a double hull and a water-jet drive, the latter consisting of at least one pump assembly for generating the water-jet and at least one drive motor for the pump assembly. According to the invention, the... | 03/11/2008 |
| 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 rudder pair may also be contoured at a bottom portion thereof. The pr... | 01/08/2008 |
| 7258301 | Personal propulsion device The present invention provides a personal propulsion device including a body unit having a center of gravity, where the body unit includes a thrust assembly providing a main conduit in fluid communication with at least two thrust nozzles, with the thrust nozzles bei... | 08/21/2007 |
| 7168996 | Integral reversing and trim deflector and control mechanism A thrust control system is described, including a control apparatus having water jet deflectors that deflect water to provide a reversing/backing thrust and a trim force to marine vessels using water jet propulsion. Other aspects include an electromechanical control... | 01/30/2007 |
| 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 undergoes flow beyond the stern end of the hull between a pair of twin... | 12/05/2006 |
| 7134923 | Retractable rudder assembly for a watercraft The assembly includes a nozzle adapter rotatably mounted via a pair of axles onto a jet nozzle of a personal watercraft. A hinge rotatably connects a rudder and cap onto the nozzle adapter. A torsion spring on the hinge retracts and retains the rudder and cap in a p... | 11/14/2006 |
| 7124698 | Auxiliary facilities for the maneuvering of submerged water jet propelled sea craft The hull of a submerged sea craft adjacent its stern end is provided with auxiliary facilities for controlled maneuvering operations under low speed conditions, including steering, stopping and negative thrust backing performed independently of main propulsion of th... | 10/24/2006 |
| 7121220 | Steering mechanism for watercraft The invention relates to an apparatus for and method of automatically actuating the movement of a rudder of a watercraft between a steering and a non-steering position in response to the speed of the watercraft. This invention is particularly applicable for use in j... | 10/17/2006 |
| 7052339 | Propulsion system for a fast seagoing ship, especially a naval ship The invention relates to a propulsion system for a fast seagoing ship, especially a naval ship, which comprises a propulsion system driven by at least one water jet produced by a pump assembly with an outlet nozzle for water, and a propeller jet produced by at least... | 05/30/2006 |
| 7052338 | Integral reversing and trim deflector and control mechanism A thrust control system is described, including a control apparatus having water jet deflectors that deflect water to provide a reversing/backing thrust and a trim force to marine vessels using water jet propulsion. Other aspects include an electro-mechanical contro... | 05/30/2006 |
| 7044816 | Jet drive and retractable rudder fin and filter systems and methods for watercraft A watercraft is fitted with any one or combination of a retractable rudder fin and filter systems and improved jet drive systems. A retractable rudder-fin and filter system includes an extendable/retractable blade and a mechanism for extending the blade a variable a... | 05/16/2006 |
| 7029343 | Steering arrangement for a ship propelled by waterjet The present invention relates to a steering arrangement for ships propelled by water jet, comprising a steering device (6) that is pivotal about an essentially vertical shaft (5) having a first center line (C1), at least one hydraulic cylinder (... | 04/18/2006 |
| 7018252 | Watercraft control mechanism A watercraft includes a watercraft control mechanism that is capable of steering, decelerating, and/or trimming a watercraft without causing the stern to elevate and the bow to dive; steers or assists steering in off-power situations; steers, trims and/or decelerate... | 03/28/2006 |
| 7011558 | Directionally-stabilized waterjet steering apparatus A directionally-stabilized waterjet steering system for a marine vessel having a vessel structure and steered by an operator, comprising: a steering deflector with a center position; a tiller arm connected to the steering deflector; an input device; and a centering ... | 03/14/2006 |
| 7004802 | Tail cone assembly A tail cone assembly for a watercraft jet pump includes a tail cone body with a shuttle recess, a self-actuated shuttle biased into the shuttle recess, and a pump back pressure inlet orifice through the tail cone body and into the shuttle recess. The shuttle may hav... | 02/28/2006 |
| 6981902 | Marine reaction thruster A propulsion system designed to propel submarine and surface vessels by discharging fluid rearwardly with a reaction of increased force that is approximately twenty percent greater than that possible with conventional propeller systems. Its conical/tapered housing i... | 01/03/2006 |
| 6932661 | Steering and directional reversing control for waterjet propulsion Waterjet flow emerging from a jet propulsor body through a cross-sectionally circular duct is conducted through a cross-sectionally rectangular duct passage extending through transition and exhaust aft sections attached to and angularly adjusted relative thereto. Un... | 08/23/2005 |
| 6926567 | Directional steering controlled jet propulsion An elongated fluid dynamic water jet type of propulsion body receives an inflow of fluid through inlet openings for entry into a jet propulsor from which an outlet jet emerges for passage through an internal transition passage to an exit end between two pairs of hor... | 08/09/2005 |
| 6878020 | Jet boat emergency braking system A braking system for a personal water craft which is activated when a high velocity water jet is cut off. The braking system is comprised of a planar member attached to a rear portion of the water craft. The braking member is movable to an elevated non-operative pos... | 04/12/2005 |
| 6702630 | Auxiliary keel system for marine crafts powered by jet propulsion systems The invention relates to an auxiliary system for providing positive steering to marine crafts using jet propulsion systems, typically personal jet driven watercrafts such as jet boats and jet skis. In one embodiment, it includes, among other features, a c... | 03/09/2004 |
| 6695654 | Retractable rudder system for water jet pump vessels The invention discloses a retractable rudder device attached to the water jet nozzle of a watercraft. In a non-deployed condition, the rudders are latched in position and completely out of the water stream underneath the craft. When deployed, two rudders ... | 02/24/2004 |
| 6675730 | Personal watercraft having off-power steering system A watercraft is disclosed that includes a hull having port and starboard sides and a propulsion system that generates a stream of pressurized water that exits through a nozzle. A helm operatively connects to the nozzle, whereby turning the helm turns the ... | 01/13/2004 |
| 6652333 | Jet boat steering system A steering system for steering a personal water craft when a high velocity water jet which is used for propelling and steering said water craft is cut off by an engine failure. In a first embodiment, a rudder is pivotally mounted on a nozzle for rotation ... | 11/25/2003 |
| 6645018 | Boat propulsion device A vessel propulsion system having a suction casing (4) configured with a suction inlet (4a) opening at a vessel bottom (1b), a suction flow path (4b) inclined to rearwardly ascend from the suction inlet (4a), and an impeller chamber (4c) formed horizontal... | 11/11/2003 |
| 6629866 | Marine vehicle propulsion system Presented is an improved marine vehicle propulsion system that utilizes a water accelerating rotor that operates efficiently when either partially or fully submerged all the while enclosed in a duct like a standard pump impeller pressurized nozzle waterje... | 10/07/2003 |
| 6561858 | Auxiliary keel system for marine crafts powered by jet propulsion systems The invention relates to an auxiliary system for providing positive steering to marine crafts using jet propulsion systems, typically personal jet driven watercrafts such as jet boats and jet skis. In one embodiment, it includes, among other features, a c... | 05/13/2003 |
| 6523489 | Personal watercraft and off-power steering system for a personal watercraft A watercraft is disclosed that includes a hull having port and starboard sides and a propulsion system that generates a stream of pressurized water through a nozzle. A helm operatively connects to the nozzle, whereby turning the helm turns the nozzle. At ... | 02/25/2003 |
| 6443785 | Method and apparatus for self-deploying rudder assembly A self-deploying rudder assembly for use with a water craft including an exhaust port having a exhaust stream includes a mounting assembly and a pivoting rudder blade assembly. The pivoting rudder blade assembly typically includes a thrust plate attached ... | 09/03/2002 |
| 6428372 | Water jet propulsion unit with retractable rudder A jet-powered watercraft has a water jet propulsion unit driven by a powerhead and a rudder pivotably mounted to the water jet propulsion unit. The rudder is pivotable between a retracted position, where the rudder extends out of the water, and a down pos... | 08/06/2002 |
| 6383041 | Rudder mechanism for jet propelled personal watercraft A rudder assembly for interfacing with a jet nozzle of a water jet propelled watercraft so as to thereby provide steering of the watercraft by pivoting of the jet nozzle even when a water jet is absent from the jet nozzle. A rudder is connected to a sleev... | 05/07/2002 |
| 6336834 | Self-deploying rudder for high speed maneuverability of jet-powered watercraft A rudder assembly is attached to the nozzle of a jet-powered watercraft by a spring-loaded pivot so as to turn with the nozzle when the craft is steered. The rudder assembly has two flat plate rudders with a baffle plate attached perpendicularly between t... | 01/08/2002 |
| 6302047 | Retractable rudder assembly for personal watercraft A retractable rudder assembly for use in steering a personal watercraft is disclosed. The rudder assembly includes at least one planar rudder operably coupled to an elongate shaft rotatably mounted on a water jet drive nozzle. The rudder is biased into a ... | 10/16/2001 |
| 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 blade-like structures which together describe an open-ended, box... | 01/09/2001 |
| 6113443 | Trim tab for jet propulsion system A trim tab is provided in the internal portion of a nozzle of a jet propulsion system. The trim tab can be rotating about an axis to expose a surface of the trim tab to the jet stream of water passing through the nozzles of the jet propulsion system. The ... | 09/05/2000 |
| 6086437 | Blow back rudder for a water craft A blow back rudder consisting of a rudder blade, rudder shaft and a plate assembly that is pivotally mounted to the nozzle of a jet nozzle of a personal water craft is spring biased in the steering mode and is positioned out of the water by the impingemen... | 07/11/2000 |
| 6024614 | High performance marine propulsion system The instant invention describes an advanced marine propulsor that has a rotor that is, at least in its majority, enclosed by structure where the rotor receives water over at least a majority of its lower portions and gas over at least part of its upper po... | 02/15/2000 |
| 5930856 | Automatic swimming pool cleaners and associated components Automatic swimming pool cleaning systems are disclosed. The systems include an automatic swimming pool cleaner incorporating one or more curved wipers protruding from its lower surface. The wipers and flat bottom of the cleaner induce a vortex as fluid fl... | 08/03/1999 |
| 5839927 | Water jet system The invention provides a water jet system with higher efficiency and better steering. The water jet system uses cantilever bars for an inlet grating, to prevent blockage. The water jet system also uses an elliptical impeller shaft housing to reduce turbul... | 11/24/1998 |
| 5720636 | Marine propulsor The instant invention describes an advanced marine propulsor that has a rotor that is, at least in its majority, enclosed by structure where the rotor, in its preferred embodiment, receives water over at least a majority of its lower portions and gas over... | 02/24/1998 |
