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| Number | Title | Issue Date |
| 7708229 | Circulation controlled airfoil A system and method provides for the manipulation of the aerodynamic characteristics of airfoils and other aerostructures using blowing and/or suction. This system and method uses one or more internal cavities located within an airfoil. An internal cavity is coupled... | 05/04/2010 |
| 7366592 | System for automatically controlling lift-enhancing devices of an aircraft, in particular wing leading edge slats A control system for an aircraft includes an actuation section that moves lift-enhancing devices as a function of received control orders, a control member operable by a pilot of the aircraft, and a control unit that includes a control section that produces control ... | 04/29/2008 |
| 7278825 | Method and system for regulating fluid over an airfoil or a hydrofoil The present invention features a fluid flow regulator that functions to influence fluid flow across an airfoil or hydrofoil, as well as various rotating or rotary devices, including propellers, impellers, turbines, rotors, fans, and other similar devices, as well as... | 10/09/2007 |
| 7178395 | Control logic for fluid flow control devices A system for controlling fluid flow about a vehicle. The system comprises a fluid flow control device, an obstacle sensor for detecting obstacles, and a controller. The fluid flow control device has a body with at least one surface and an actuation means in operativ... | 02/20/2007 |
| 7178760 | Method and apparatus for inhibiting accretion of airborne material on a surface of an aircraft An apparatus for inhibiting accretion of airborne material on a surface of an aircraft. The apparatus comprises a film adapted to overlie at least a portion of the aircraft surface and a driver mechanism coupled to the film. The driver mechanism is operative to slid... | 02/20/2007 |
| 7147271 | Airflow control devices with planar surfaces An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as a shape memory material, is operative to change at least one attribute in response to an activation signal. The active material c... | 12/12/2006 |
| 7048505 | Method and system for regulating fluid flow over an airfoil or a hydrofoil The present invention features a fluid flow regulator that functions to significantly influence fluid flow across an airfoil or hydrofoil, as well as various rotating or rotary devices, including propellers, impellers, turbines, rotors, fans, and other similar devic... | 05/23/2006 |
| 6908063 | Vortex shedding and drag force reduction Smoothly curved protuberances (8, 26, 34) are added to an elongate body (2, 16, 18, 20, 22, 32) to modify the fluid flow to reduce the drag Force Fdrag and the forces induced by vortex shedding Fvortex. The protuberances can be ar... | 06/21/2005 |
| 6824109 | Lift adjusting device for aircraft The invention utilizes a computer-controlled moving band, typically on an airplane, to increase the apparent speed and therefore the lift of any body moving through a fluid. The invention will allow greater precision of control. One benefit is that take-offs and lan... | 11/30/2004 |
| 6641089 | Flap arrangement for varying the aerodynamic lift generated by an aerodynamic element of an aircraft An auxiliary flap is movably arranged on a planar trailing edge of an aerodynamic element such as a wing, rudder, stabilizer, or flap. The auxiliary flap is rotatable and/or slidable relative to the aerodynamic element, to move selectively into three posi... | 11/04/2003 |
| 6622973 | Movable surface plane Movable surface planes include opposed independently movable endless surfaces over the majority of opposite sides of the planes. By moving one surface in the same direction as the fluid flow about the plane, and the opposite surface in a direction opposit... | 09/23/2003 |
| 6322024 | Lift multiplying device for aircraft The invention utilizes a moving band, typically on an airplane, to increase the apparent speed and therefore the lift of any body moving through a fluid. The invention will allow take-offs and landings at reduced speeds and allow a greater load. It will a... | 11/27/2001 |
| 6123296 | Self-actuated flow control system Arrays of microslats operating within the boundary layer of an aircraft wing or other surfaces are provided. The arrays consist of rows of microslats, staggered between rows, and shaped so that the trailing edge of the microslat is normal or perpendicular... | 09/26/2000 |
| 5803409 | Method and apparatus for reducing the drag of flows over surfaces An apparatus, and its accompanying method, for reducing the drag of flows over a surface includes arrays of small disks and sensors. The arrays are embedded in the surface and may extend above, or be depressed below, the surface, provided they remain hydr... | 09/08/1998 |
| 5681014 | Torsional twist airfoil control means A control system for aircraft airfoils, which is an improvement over existing aileron, flap, spoiler and deicing technologies, in providing increased roll control and aerodynamic lifting and braking functions; with greatly reduced drag increased airspeed ... | 10/28/1997 |
| 5590854 | Movable sheet for laminar flow and deicing A movable sheet overlying a wing is disclosed that creates laminar flow over its exposed surface. The movable sheet serves as an integral, retractable shield for protecting a suction support structure of a wing against contamination, and also serves as a ... | 01/07/1997 |
| 5549260 | Active control device for aircraft tail buffet alleviation A rotatable slotted cylinder (RSC), partially embedded within the contours of a tail surface, such as an aircraft tail airfoil, serves as a force-producing element in a closed-loop active control system for buffet alleviation. A longitudinal axis of the R... | 08/27/1996 |
| 5449131 | Vertical nose strake for aircraft stability and control A pivotal strake located at the nose section of an aircraft forebody. The strake pivots about an axis that is essentially perpendicular to the surface of the nose section. Rotation of the strake will influence the forebody vortices to create a resulting y... | 09/12/1995 |
| 5236149 | Boundary layer control device for tilt rotor configuration A boundary layer control device including a rotating cylinder mounted on a shaft disposed along the trailing edge of the wing of an aircraft and a flap structure secured to the shaft on which the rotating cylinder is mounted. In the preferred embodiment, ... | 08/17/1993 |
| 5207397 | Rotatable nose and nose boom strakes and methods for aircraft stability and control Methods and apparatus for stability and maneuver control using rotatable nose strakes to control forebody vortices at medium to high angles of attack are disclosed. In one form, small left and right nose strakes are supported on a member or members formin... | 05/04/1993 |
| 5195702 | Rotor flap apparatus and method A rotor flap apparatus is attached to the trailing edge of a wing of a craft. The rotor flap apparatus includes a rotatable rotor mounted on an attachment arm, which is pivotally mounted on a trailing edge of the wing. The attachment arm can be raised or ... | 03/23/1993 |
| 5180119 | Vertical lift system through tangential blowing of air jets channelled over the top of rotating cylinders This invention pertains to a means of aerial lift depending on the use of an air jet blown and channelled (through a nozzle and a vane) exclusively and almost tangentially over a limited segment of a rotating cylinder (a Magnus cylinder) thereby creating ... | 01/19/1993 |
| 5139215 | Guided missiles A fuselage, particularly of a guided missile, having a rotatable nose body carrying a pair of similar strakes symmetricaly disposed about the body and for anchoring incidence generated vortices thereon.... | 08/18/1992 |
| 5100085 | Aircraft wingtip vorticity redistribution apparatus A rotor is mounted to an aircraft wing to recover induced drag associated with a wingtip vortex. When the rotor is placed in the vortex stream, the transverse component of relative wind encountered at selected increasing spanwise locations along the blade... | 03/31/1992 |
| 4576581 | Reversible Magnus propeller The thrust of a Magnus propeller is made reversible by reversing the rotation of the Magnus cylinders independently of the direction of rotation of the propeller shaft. Reversible drives for the cylinders are provided that are mechanical, fluid or electri... | 03/18/1986 |
| 4535714 | Rudder rotor for watercraft and floating equipment The invention relates to an electric rudder rotor which in its simplest construction is in the form of an externally running underwater electric motor and comprises a fixed stator and a rotating rotor, which carries the rotor cylinder, the stator being su... | 08/20/1985 |
| 4307677 | Rudder for aquatic craft and floating apparatus The invention relates to a rudder for aquatic craft wherein the rudder member is provided with a fin which is pivotable independently thereof and with a rotor on the front edge of the rudder member and/or between the latter and the fin or between the rudd... | 12/29/1981 |
| 4100876 | Hydrofoil fixed strut steering control Apparatus for steering a hydrofoil ship by the combination of one or more trailing-edge or spade rudders in combination with means for controlling the side forces on a vertical, fixed strut or horizontal foil which pierces the water. The means for control... | 07/18/1978 |
