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Document Title |
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8182306 |
Flying toy having gyroscopic and gliding components
Provided are flying devices and methods of manufacturing and launching same, in particular flying toys or other recreational items that are designed to be thrown through the air by a user...
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7971823 |
Saucer shaped gyroscopically stabilized vertical take-off and landing aircraft
An aircraft that is housed within a gyroscope providing for improved flight stability that includes an inner hull which remains stationary within a rotating outer hull. A rotating sine-wave ring is...
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7874514 |
Amphibious aircraft
A multi-wing, multi-engine, multi-hull amphibious aircraft is disclosed. In the illustrative embodiment, the aircraft has an open frame structure without a fuselage.
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7766274 |
Active maple seed flyer
An unmanned aerial vehicle (UAV) has a payload or body affixed at one end of an elongated airfoil. The entire airfoil/payload combination rotates about a center of mass to define a rotor disk....
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7762495 |
Solar powered aerial vehicle
A solar powered aerial vehicle includes an elongated airframe incorporating lifting and control surfaces, a mechanism for propelling the airframe through the air such that lift developed by the...
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7699260 |
Vertical takeoff and landing aircraft using a redundant array of independent rotors
A vertical takeoff and landing aircraft, using for vertical lift and lateral thrust a redundant plurality of essentially similar electrically-powered and electronically-controlled thrust units...
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7677492 |
Automatic mechanical control of rotor blade collective pitch
A rotary aircraft has a fuselage with wings and a rotor. The blades of the rotor are twistable about a pitch axis to vary collective pitch. A collective pitch shaft moves in an advancing direction...
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7552895 |
System, apparatus and method to improve the aerodynamics of a floatplane
The aerodynamics of a floatplane can be improved by providing a wing suitable for mounting on a spreader bar between floats of the floatplane, mounting said wing on the spreader bar between the...
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7441724 |
System and method for controlling a roll rate of a torsionally-disconnected freewing aircraft
An aircraft includes a fuselage, and first and second freewings. Each of the first and second freewings is separately mounted to the fuselage and independently freely pivotable about respective...
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7294036 |
Flying disc
A circular planform wing includes a contiguous thin central plate having top and bottom surfaces. An outer annular rim encompasses the central plate. The rim has a lower edge defining a lower plane...
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7246770 |
Aircraft with rotatable leading edge of fuselage and wings
A rotatable leading edge for the fuselage and wings of an aircraft is disclosed. The leading edge may be rotated from an undeflected or retracted position adjacent to the fuselage and wings to a...
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7204454 |
Aircraft with articulated leading edge of fuselage and wings
An articulated leading edge for the fuselage and wings of an aircraft is disclosed. The leading edge may be moved from an undeflected or retracted position adjacent to the fuselage and wings to a...
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7165742 |
Aircraft spiralling mechanism - B
An aircraft 1 with a spiral inducing assembly 2 which is capable of inducing the aircraft to travel in a continuous spiralling motion without the aircraft rolling. Two fins 6 and 17 are attached to...
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7131611 |
Device and method of control of fixed and variable geometry rhomboid wings
Provided is an aerodynamic body having rhomboid wings and internal torsion bars which can be twisted to affect a change in the shape of a wing. Individual or multiple swings can slide relative to...
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7014142 |
Low-drag rotor/wing flap
Rotor/wing aircraft having a low-drag flap are disclosed. In one embodiment, a rotor/wing aircraft includes an elongated blade having a body portion and a flap portion. The body portion has first...
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6712313 |
Constant velocity drive rotary-wing aircraft rotor with torque splitting differential
A constant velocity drive mechanism of a rotary-wing aircraft rotor, comprises a torque splitting differential mechanism, comprising a driving disc integral in rotation with a rotor mast and...
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6669138 |
Rotary aeronautical lifting cell
A rotary aeronautical lifting cell having an annular airfoil, airfoil dividers, and a propulsion mechanism. The airfoil dividers separate the annular airfoil into airfoil sections arranged in...
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6601795 |
Air vehicle having scissors wings
An air vehicle, such as an aircraft, an unmanned air vehicle, a missile, or an aero bomb that has a fuselage and two main wings each of which has a left side wing and a right side wing. Both of the...
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6513762 |
Flap actuator system
A flap actuator system for an airfoil structure including: a flap member for controlling the airfoil structure; a bearing member interconnected with the flap member and the airfoil structure; and...
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6497385 |
Rotor blade with optimized twist distribution
A rotor blade has a local geometric twist angle θ=ƒ(r/R), with R being the blade span and r being the distance along the blade span from the axis of rotation. The blade has an inner region b...
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6457671 |
Funneled rotary foil
A funnel strip is added to a rotary airfoil, which utilizes the Bernoulli principle to increase the velocity of air over the suction side of the rotating airfoil to increase the lift. The device is...
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6382557 |
Permanently rotating free aerostat mobile in radial translation relative to ambient air
The invention concerns a free lighter-than-air aerostat comprising a structure (1, 3, 4, 5) symmetrical relative to a main axis (2), at least one main sealed pressurized chamber (16), one or...
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6354536 |
Rotor hub mounted actuator for controlling a blade on a rotorcraft
A hub mounted actuation system for providing control of a portion of a rotor blade, such as a flap, on a rotorcraft. The rotor blade is attached to a rotor shaft that rotates with respect to an...
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6267331 |
Airfoil with dynamic stall control by oscillatory forcing
A method for inhibiting dynamic stall of an airfoil by causing a fluid to flow out of at least one location on the airfoil. This location may be anywhere on the airfoil; but if the location is...
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6260809 |
Ovate loop for rotary-wing blades
Blade vortex interaction (BVI) noise, associated with the operation of aircraft having rotary-wing blades, is abated by the inclusion of an ovate loop tip (20) at the tip portion (16) of each of...
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6086016 |
Gyro stabilized triple mode aircraft
A triple mode aircraft which can take off as a helicopter, or in gyrocopter mode with no power to the rotors or as a conventional aircraft obtaining lift from a circular wing and in another...
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6047924 |
Method of folding the blades of a main rotor of a rotary-wing aircraft, and apparatus for implementing the method
Once the rotor of a rotary-wing aircraft is held stationary in an indicated position, the method comprises steps consisting in placing the collective pitch control stick in a first predefined...
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6032899 |
Blade pitch locking device for a main rotor of a rotary-wing aircraft
The present invention relates to a device for locking the pitch of the blades of a main rotor of a rotary-wing aircraft in which each blade is firstly rotated about an axis of rotation of the rotor...
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6029930 |
Method of monitoring a transmission assembly of a vehicle equipped with acceleration sensors, in particular a helicopter
The monitoring method includes the steps of: acquiring a signal from an acceleration sensor; calculating a transform in the frequency domain of the signal to obtain a sequence of samples; acquiring...
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6030177 |
Drive system for a variable diameter tilt rotor
A drive system for a variable diameter rotor system that includes a plurality of rotor blade assemblies with inner and outer blade segments. The outer blade segment being telescopically mounted to...
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6024324 |
Method of monitoring an epicyclic assembly of a vehicle equipped with acceleration sensors in particular a helicopter
The monitoring method includes the steps of: acquiring a signal from an acceleration sensor associated with an epicyclic assembly; sampling the signal at a predetermined sampling frequency to...
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6019578 |
Variable diameter rotor blade actuation system
A rotor blade actuation system is disclosed for controlling extension and retraction of an outboard blade section of a rotor blade by varying the speed and direction of rotation between a main...
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5984230 |
Wing assemblies for aircraft
A rotary wing having a spar that flexes and crosses the axis of the spar in two or more points. The spar mounts two adjacent flying surfaces extending spanwise and rotatable about the longitudinal...
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5890680 |
Device at the adapter of a launcher and a satellite carried by the adapter
A device for imparting rotational movement to a satellite during discharge from an adapter of a launcher. The satellite includes a first axis, a second axis, and a third axis passing through a...
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5860624 |
Tilting adaptor for the carriage of several payloads on the same launcher
In order to be able to install in juxtaposed manner several satellites beneath the nose cone of the same launcher without any collision risk at the time of their separation, between each satellite...
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5810286 |
Lighter-than-air aircraft
A stable and highly maneuverable lighter-than-air aircraft is provided. The aircraft includes a body portion which is supported beneath a balloon portion by a stem or axle. The balloon is fillable...
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5722615 |
Transport airplane with front empennage
Airplane (1) including a mainplane (3), elevator aerodynamic surfaces (4) and a front canard empennage adjustable in orientation. This airplane includes: a device for calculating (14) continuously...
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5671898 |
Aircraft having fixed and pivotal wings
An aircraft having variable airframe geometry includes an elongate fuselage having top and bottom sides, a swept back, high-speed wing mounted to the top of the fuselage, and a high aspect ratio,...
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5642867 |
Aerodynamic lifting and control surface and control system using same
An aerodynamic lifting and control surface comprising an external box structure that encloses an internal grid whose members are parallel to the box structure. The external box structure comprises...
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5395073 |
STOL/VTOL free wing aircraft with articulated tail boom
A VTOL/STOL free wing aircraft includes a free wing having wings on opposite sides of a fuselage connected to one another respectively adjacent fixed wing inboard or center root sections fixedly...
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5340057 |
Thrust vectoring free wing aircraft
The VTOL aircraft includes a free wing having wings on opposite sides of the fuselage connected to one another for joint free rotation and for differential pitch settings under pilot, computer or...
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5337974 |
Wing pivot structure
An aircraft wing pivot structure is described which provides a flexible ring attached to the aircraft wing at flexible wing attachment points by spherical bearings. The ring is attached to the...
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5190242 |
Model jet helicopter with solid-circular rotor blade
An elongate helicopter body including an orthogonally mounted rotatable and pivotally positionable rotor shaft fixedly mounting a solid, annular, convex blade member defined by a parabolic convex...
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5176338 |
N-dimensional fighter aircraft
An improved fighter aircraft has three primary lifting surfaces acting as wings on the airframe. The lifting surfaces are attached 120 degrees apart on the airframe so the fighter may turn in any...
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5098034 |
Vertical/short takeoff or landing aircraft having a rotatable wing and tandem supporting surfaces
An improved vertical/short takeoff or landing aircraft (10). The aircraft has a canard wing (14), attached to the forward section of the aircraft body, that has an engine (26) on each side. Each...
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4998689 |
90 degree rotation aircraft wing
A high speed aircraft fitted with a unitary, rotatable wing coupled to the craft's fuselage at a hollow turret or solid pivot pin, enabling it to operate with the wing in either of two ninety...
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4903917 |
Projectile with rotatable stabilizing device
The invention is concerned with a projectile with a stabilizing device that is depolyable beyond the caliber and that should at least comprise an object rotatable about its axis. The stabilizing...
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4807830 |
Aircraft with magnetically coupled annulus
An aircraft comprising an aerodynamic annulus and a fuselage coupled to the annulus by electromagnetic means to permit rotation of the annulus relative to the fuselage without mechanical engagement...
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4770371 |
Fluid motor driven multi propeller aircraft
An aircraft has a plurality of pairs of disc-type wings behind each other kept by holding structures on the body of the craft. Each pair has one disc-type wing on the right and one disc type wing...
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4596367 |
Horizontal wind/water wheel with vertical lift a superior protype model
A rotary fluid propelled device employing a natural theory of constriction and controlled redistribution to convert fluid flow to rotary mechanical energy. Two conical shell-shaped compartments...
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