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| Number | Title | Issue Date |
| 7306066 | Air cushion vehicle and game The present invention is an air cushion vehicle and a control mechanism for steering and turning the vehicle. The air cushion vehicle includes a frame having a skirt body extending around the perimeter. An air flow generator may be positioned on the frame for provid... | 12/11/2007 |
| 7204672 | Multi-modal forced vortex device A multi-modal forced vortex device is described having a top plate and a side wall creating a partially enclosed volume. The top plate includes one or more adjustable fluid openings to permit, or restrict, fluid flow into and out of the partially enclosed volume. Ro... | 04/17/2007 |
| 7032698 | Hovercraft A hovercraft is capable of operation on either a solid surface or a liquid surface. The hovercraft includes a hull on which is mounted at least one thrust-lift fan assembly for providing an air cushion under the hovercraft and for propelling the hovercraft in a forw... | 04/25/2006 |
| 5930864 | Upright vacuum cleaner An upright vacuum cleaner includes a main body, a floor nozzle unit, and a float plate or float unit. The main body has a motor fan for generating a suction force and a dust-collection chamber for collecting dust. The motor fan provides the suction force ... | 08/03/1999 |
| 5636702 | Aerodynamic and ground effect craft A craft for ground effect and aerodynamic flight has, in addition to the usual vertical and horizontal stabilizer(s), a primary, upper airfoil, a lower secondary airfoil and a pivotable flap. The upper surface of the primary airfoil forms the primary lift... | 06/10/1997 |
| 5553347 | Upright vacuum cleaner An upright vacuum cleaner has a floating function for lifting the upright vacuum cleaner in a cleaning operation by spouting discharge air flow to a floor to be cleaned, and at least a suction-air inlet port for sucking air with dusts is arranged at an ou... | 09/10/1996 |
| 5501291 | Skirt for an air cushion vehicle and filament member thereto The air cushion chambers of an air cushion vehicle are horizontally delimited by a skirt. The skirt comprises brushes with elongated downwards extended filaments (9), which have downwards diminishing cross-sectional area thereby providing the brushes with... | 03/26/1996 |
| 5392492 | Air-floated apparatus The present invention describes an air-floated vacuum cleaner comprising a housing having an air inlet opening, an open bottom and an inner wall, an impeller for pressurizing air within the housing to float the housing above a support surface, and a novel... | 02/28/1995 |
| 4840249 | Apparatus for srewing a cover onto a screw neck of a hearing aid A rotary shaft is provided with at least two pins at its one end, these two pins fitting into two holes of the cover. The other end of the rotary shaft carries a polygonal screw pin for screwing on the adaptor.... | 06/20/1989 |
| 4615407 | Flexible annular jet seal for surface effect vehicles An improved bow and/or stern seal is provided for a surface effect vehicle herein the vehicle has a pair of spaced apart side hulls which are joined by a wet deck, and the bow and stern seals extend between the side hulls so that an air cushion can be form... | 10/07/1986 |
| 4569410 | Apparatus for carrying and transporting loads An apparatus for carrying and transporting loads over a surface comprises: a supporting platform; a flexible damping ring fixed to the supporting platform along a circular closed-loop line of contact and defining a chamber adapted for inflation upon intro... | 02/11/1986 |
| 4534434 | Propulsion plant for air-cushioned vehicles An air-cushioned vehicle wherein the air pressure differential between the plenum chamber and the atmosphere is used to charge a jet engine; thus allowing the use of pulse-jet or ram-jet power plants which require precharging and improving the performance... | 08/13/1985 |
