Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8166899 | Air cavity vessel having longitudinal and transverse partitions An air cavity vessel having longitudinal and transverse partitions is provided. The air cavity vessel, which injects air into the bottom thereof to form air layers in order to reduce resistance of the vessel, includes transverse partitions partitioning the bottom in... | 05/01/2012 |
| 8096252 | Ship hull structure and a method of operating the ship A ship hull structure includes a main hull and a movable rearbody having an engine and a propeller. The movable rearbody is located at a lower side of a stern of the main hull, connected with an aft of the main hull to form an integral unit by a hinge linking device... | 01/17/2012 |
| 8011310 | Ship with reduced frictional resistance and its operation method Micro-bubble generators attached to a ship hull below the waterline decrease frictional resistance during navigation and improve fuel efficiency. Each micro-bubble generator is supplied with air and has a wing positioned outside the hull for generating negative pres... | 09/06/2011 |
| 7997221 | Apparatus for reducing drag on a nautical vessel The invention is an apparatus and method for reducing the drag that a vessel hull experiences when moving through the water by interposing air bubbles between the skin of the hull and the stream of water that the vessel is moving through. The invention delivers comp... | 08/16/2011 |
| 7874258 | Method of reducing frictional resistance between ship body and water by releasing gases in water A method of reducing frictional resistance between a ship hull and water by releasing gases through a plurality of gas outlets under a water level in a fore portion of the hull. The released gases are selected from a group of air, engine exhaust gas and water vapor.... | 01/25/2011 |
| 7845297 | Ship and associated methods of formation with vessels having connectable hulls A ship and associated methods of formation with vessels having connectable hulls. In an example embodiment, a method of operating a ship includes providing a plurality of vessels over water, each comprising at least two spaced-apart hull sections defining a cavity w... | 12/07/2010 |
| 7789030 | Air cavity vessel A vessel (1) comprising a hull (2) with a stern (5), bow (7) and bottom (3), an air cavity (6) formed at the bottom (3) of the hull (2) and comprising a cavity top surface (27), a front wall (28) ... | 09/07/2010 |
| 7681512 | Wind-powered, air cushioned rotatable platform A wind-powered, fluid cushioned platform adapted to float on a body of liquid. The platform includes a deck having upper and lower surfaces and a lower peripheral member extending around the outer perimeter of the deck. A pump having a pump outlet is supported by th... | 03/23/2010 |
| 7677191 | Frictional resistance reduction ship and operation method A ship is provided with microbubble generators attached below the waterline to supply microbubbles, which decrease the ship's frictional resistance during navigation and improve fuel efficiency. The below waterline region (L.W.L.) of the ship is divided into an uppe... | 03/16/2010 |
| 7654212 | Frictional resistance reduction ship The friction drag decreases and the friction resistance decrease ship that improves fuel cost is offered. Duct 3 is divided into two or more independent chambers 5, with partition 4 according to the longitudinal direction; piping 6... | 02/02/2010 |
| 7597060 | Apparatus and method for reducing fluid drag on a submerged surface An apparatus and method for reducing surface friction drag on the hull of a surface vessel by entraining air into water flowing in the boundary layer flow along the hull. The apparatus creates a reduced pressure region by diverting a first portion of the flow away f... | 10/06/2009 |
| 7530318 | Method and system for producing a potential over a body This application concerns a method and system using a hydrodynamical effect for producing a potential over a body. The force obtained this way is useful for the propulsion and maneuvering of ships, submarines, aeroplanes, and airships. A body immersed in a fluid at ... | 05/12/2009 |
| 7464657 | Catamaran air cushion ship with folding, retractable seals A vessel designed to operate efficiently as both a catamaran and air cushion vessel can travel at low speed in a catamaran or displacement mode, high speed in an air cushion mode, and amphibiously with the aid of deployable side seals. The vessel includes catamaran ... | 12/16/2008 |
| 7424859 | Shallow water boat A shallow water boat is shown that operates well in both shallow water and deep water. A tunnel is provided along a centerline of a flat bottom, which tunnel starts near amidships increases in depth and terminates at the aft of the shallow water boat. A top of the t... | 09/16/2008 |
| 7398740 | Multi-mission/purpose ground-effect craft derived from a common modular platform A multi-mission/purpose ground-effect craft is provided which is derived from a common modular platform which includes a hull; an inner floor structure adapted to be installed over the hull; a body adapted to be attached to at least one of the top surface of the hul... | 07/15/2008 |
| 7347154 | Amphibious craft The present invention relates to an improved amphibious craft or vehicle and, in particular, but not exclusively, to a craft or vehicle that may be used for commercial and rescue tasks in a great variety of weather conditions. To achieve this, an amphibious vehicle ... | 03/25/2008 |
| 7347146 | Supercavitating projectile with propulsion and ventilation jet A supercavitating projectile is disclosed and includes a combustion chamber, a forward-directed jet nozzle and a comparatively larger gas duct/rear-directed jet nozzle. The combustion chamber is filled with a propellant having a hollowed core. The core serves as a p... | 03/25/2008 |
| 7334756 | Ground-effect craft and method for the cruising flight thereof The invention relates to flying vehicles. A centre wing is provided with aerodynamic profiles on the longitudinal sections thereof. A cigar-shaped fuselage is arranged on the central wing. A crew cabin and a cargo-passenger cabin are arranged inside the fuselage. Ho... | 02/26/2008 |
| 7328668 | Hybrid vee-hull / wing-in-ground effect vessel An improved planing hull which incorporates a vee-bow (1) with outboard chines (2) designed to trap air and water between said chines. As the chines (2) extend aft they become wider and deeper (3) in the water. The vee-bow (1) ensu... | 02/12/2008 |
| 7318388 | Integrated marine performance system A system for improving the performance of a powered boat that includes both methods and apparatuses that provide a powered boat ways to stabilize, control, and optimize the powered boat's performance when the powered boat is in powered motion. The system provides ca... | 01/15/2008 |
| 7316193 | Vessel for water travel A vessel for water travel that has the stability of a heavy weighted vessel when at rest in the water and the performance of a lightweight vessel when in a planed condition. The vessel comprises at least one hull structure for partially submerged flotation in a body... | 01/08/2008 |
| 7314014 | Water craft A water craft (77) is disclosed which includes a chassis portion (78), at least four water engaging means (30, 34, 38, 42) and interconnecting means (94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, ... | 01/01/2008 |
| 7311057 | Surface effect craft The present invention relates to a surface effect craft comprising a supporting deck structure having two pontoons mounted thereto in catamaran like fashion. A propulsion mechanism is mounted to a rear portion of the deck structure. A lift control member is disposed... | 12/25/2007 |
| 7296526 | Dual stability seal skirt system for air cushion vehicle A marine air cushion vehicle provides a hull having a hull periphery, an inflatable bag connected to the hull at the hull periphery, an inflatable skirt connected to the bag, and a pair of inflatable lateral stability seals, each extending generally perpendicular to... | 11/20/2007 |
| 7290631 | Wrapped-cone fingers for skirt systems Wrapped-cone fingers for use in an air-cushion vehicle (ACV) skirt system are described. Wrapped-cone fingers may include an inner cone that is “wrapped” or generally enclosed by an outer finger. The inner cone may include an inner cone opening through which air... | 11/06/2007 |
| 7281480 | Frictionally reduced hull A frictionally reduced hull is provided for a marine vessel, the hull having a water line, a bow end and an aft end. The hull has a first opening below the water line and a second opening below the water line. The first opening is closer than the second opening to t... | 10/16/2007 |
| 7267067 | Apparatus and method for reducing fluid drag on a submerged surface An apparatus and method for reducing surface friction drag on the hull of a surface vessel by entraining air into water flowing in the boundary layer flow along the hull. The apparatus creates a reduced pressure region by diverting a first portion of the flow away f... | 09/11/2007 |
| 7255387 | Vortex strake device and method for reducing the aerodynamic drag of ground vehicles An improved method and device for the reduction of aerodynamic drag and for increased fuel economy of ground vehicles by increasing the pressure on the rear surface of the vehicle with a plurality of vortices generated along the top and side surfaces of the ground v... | 08/14/2007 |
| 7255056 | Stable, high-speed marine vessel A marine vessel that possesses a capability for greater speed than most static-lift craft and is more stable than most dynamic-lift craft is disclosed. The vessel incorporates elements from both SWATH craft and WIG craft. In the illustrative embodiment, the marine v... | 08/14/2007 |
| 7237500 | Hull construction for side hulls of trimaran and the like An amah for a high speed seagoing multi hulled vessel, the amah having sides extending upwardly and outwardly from a base line, the sides having longitudinally extending vertically spaced stiffeners, the bow of the amah including a plate field comprising a plurality... | 07/03/2007 |
| 7226325 | Device for stabilizing re-entrant cavity flows past high-speed underwater vehicles A stabilizing device for a supercavitating vehicle that isolates re-entrant jet flows of liquid from its cavity. The device has a receiving means positioned on the supercavitating vehicle where the re-entrant jet flow impinges on the supercavitating vehicle. An exit... | 06/05/2007 |
| 7219854 | Cycloidal hybrid advanced surface effects vehicle A “wing in ground effect” aerial vehicle includes a wing mounted on a fuselage, and two cycloidal propulsion units for providing lift, thrust and longitudinal control. Additional lift is provided by a lighter-than-air gas such as helium contained in the fuselage... | 05/22/2007 |
| 7219614 | Apparatus and method for reducing fluid drag on a submerged surface An apparatus and method for reducing surface friction drag on the hull of a surface vessel by entraining air into water flowing in the boundary layer flow along the hull. A hemispherical protrusion creates flow separation by diverting a portion of the water flow awa... | 05/22/2007 |
| 7207285 | Variable hybrid catamaran air cushion ship A vessel (10) designed to operate efficiently as both a catamaran and air cushion vessel can travel at low speed (e.g. Froude number (Fn)=0–0.3) in a catamaran or displacement mode and at high speed (e.g. Froude numbers (Fn)=0.3 or more) in an air cushion o... | 04/24/2007 |
| 7204196 | Powered boat hull A hydrofoil craft, particularly a method of economically modifying a conventional hull with cambered foils to obtain and calculate increased lift from dense spray and to achieve enhanced craft performance is disclosed. The present invention improves speed, fuel effi... | 04/17/2007 |
| 7194973 | Air cushioned rotatable platform A fluid cushioned platform adapted to float on a body of liquid. The platform includes a deck having upper and lower surfaces and a lower peripheral member extending around the outer perimeter of the deck. A pump having a pump outlet is supported by the deck. A fill... | 03/27/2007 |
| 7188575 | Watercraft with wave deflecting hull The invention is directed to a watercraft hull design that comprises a hull having a bow, stem, top, and bottom. A wedge-shaped wave spreading system is located at a forward portion of the craft. The wave-contacting surface planes of the wave spreading system are po... | 03/13/2007 |
| 7188580 | Variable-geometry graduated surface-foil for wing-in-ground effect vehicles The invention is a marine wing-in-ground effect vehicle capable of sustained high speed operation in varying seas. The vehicle comprises an aerodynamic flat bottom lifting wing with a fuselage, a longitudinal keel member under the wing, a propulsion unit installed i... | 03/13/2007 |
| 7168382 | Beachable high speed marine vehicle Presented is a beachable high speed marine vehicle with air cushioned hull(s) capable of transporting heavy loads at very high speeds to beachheads and then departing the beachhead under its own power. The artificially pressurized air cushions allow the bow of the v... | 01/30/2007 |
| 7165917 | Apparatus for disposal of toxic and radioactive waste A new system for underwater waste disposal is disclosed, consisting of a high-speed, hardened penetrator, optional rocket motor (or other compact propulsion device) and alternative mechanisms for eliminating water drag by surrounding the projectile with a gas layer.... | 01/23/2007 |
