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| Number | Title | Issue Date |
| 8172173 | Covert sensor emplacement using autorotational delivery mechanism A method for emplacing sensors, comprising the steps of modifying an existing sensor to attach an autorotational mechanism and deploying said sensor by autorotational means. ... | 05/08/2012 |
| 8113461 | Helicopter A helicopter comprising a drive having an air intake conduit, a main rotor connected functionally to the drive and a transmission interposed functionally between the main rotor and the drive and housed in a housing. The helicopter further comprises at least one air ... | 02/14/2012 |
| 8096496 | Helicopter drip pan A drip pan apparatus for a “M” model BLACK HAWK® helicopter and the like includes an expanded corner structure for accommodating an access port also positioned further outwardly in the corner than in prior drip pan apparatuses, facilitating filter viewing while... | 01/17/2012 |
| 8047465 | Composite anti-crash structure with lateral retention, for an aircraft A structure for an aircraft comprises a first wall and a second wall. The first wall comprises two jackets of composite material disposed on either side of an intermediate arrangement and further includes at least one soleplate enabling it to be secured to the secon... | 11/01/2011 |
| 7942365 | Variable speed transmission for a rotary wing aircraft A transmission gearbox for a rotary-wing aircraft includes a main gearbox and a variable speed gearbox in meshing engagement with the main rotor gearbox. The variable speed gearbox permits at least two different RPMs for the main rotor system without disengaging the... | 05/17/2011 |
| 7815144 | Ground air water craft A vehicle that can operate as either a motorcycle or an autogiro, said vehicle having a flight mode and a motorcycle mode, said vehicle comprising: a frame having a front part and a rear part; a center-line that pa... | 10/19/2010 |
| 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. Thrust is provided by air-augmented rocket engine thrusting tangentially ... | 08/03/2010 |
| 7721988 | Unmanned helicopter The invention relates to an unmanned helicopter comprising an internal combustion engine and an associated fuel tank. The unit (1) formed by the internal combustion engine and the gearbox is arranged essentially in a self-supporting housing (2) which i... | 05/25/2010 |
| 7686245 | Rotary aircraft download alleviation apparatus and methods Apparatus and methods for alleviating rotary aircraft downloads are disclosed. In one embodiment, a rotary aircraft includes an airframe assembly having a fuselage, at least one rotor assembly operatively coupled to the airframe assembly and configured to provide a ... | 03/30/2010 |
| 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 to increase the collective pitch. Weights are mounted to the blades f... | 03/16/2010 |
| 7651050 | Variable speed gearbox with an independently variable speed tail rotor system for a rotary wing aircraft A gearbox of a rotary-wing aircraft includes at least one variable speed system which optimizes the main rotor speed for different flight regimes such as a hover flight profile and a high speed cruise flight profile for any rotary wing aircraft while maintaining an ... | 01/26/2010 |
| 7651049 | Helicopter with an auxiliary lubricating circuit There is described a helicopter having a first member movable with respect to a second member; lubricated supporting means for supporting the first member with respect to the second member; and a primary lubricating circuit for lubricating the supporting means and i... | 01/26/2010 |
| 7628355 | Variable speed transmission for a rotary wing aircraft A transmission gearbox for a rotary-wing aircraft includes a main gearbox and a variable speed gearbox in meshing engagement with the main rotor gearbox. The variable speed gearbox permits at least two different RPMs for the main rotor system without disengaging the... | 12/08/2009 |
| 7624943 | Multi-mode unmanned and manned vehicle systems and methods An apparatus for converting a manned aircraft for unmanned flight, the aircraft including at least one pilot control capable of manipulation to affect operation of the aircraft, the apparatus comprising a first actuator and a second actuator each configured to selec... | 12/01/2009 |
| 7510141 | Autonomous control method for small unmanned helicopter An autonomous control method autonomously controls a small unmanned helicopter toward target values, such as a set position and velocity, by deriving model formulas well suited for the autonomous control of small unmanned helicopters, by designing an autonomous cont... | 03/31/2009 |
| 7438260 | Vertical take-off aircraft—C A vertical take-off aircraft is disclosed. Looking at the aircraft it can be seen that the aircraft consists of a main rotor assembly 1 at the top of the aircraft which consists of an assembly of blades 2, 3 and a rotor 4. Rotation of the main r... | 10/21/2008 |
| 7434764 | Variable speed gearbox with an independently variable speed tail rotor system for a rotary wing aircraft A gearbox of a rotary-wing aircraft includes at least one variable speed system which optimizes the main rotor speed for different flight regimes such as a hover flight profile and a high speed cruise flight profile for any rotary wing aircraft while maintaining an ... | 10/14/2008 |
| 7413140 | Rotary wing aircraft with undercarriage structure A rotary wing aircraft (1) such as a helicopter comprises a force-transmission structure (5) for transmitting forces, in particular those coming from an undercarriage (2), and that, in longitudinal elevation view, presents an L-shape in which th... | 08/19/2008 |
| 7407134 | Auxiliary nose undercarriage, a force-transmission structure, and a rotary wing aircraft A steerable auxiliary nose undercarriage (2) for a rotary wing aircraft (1); the undercarriage (2) being retractable substantially rearwards. In the undercarriage (2), an oscillating system (13) presents a elevation stroke (58 | 08/05/2008 |
| 7364114 | Aircraft The present invention concerns an aircraft having a plurality of lifting and thrust rotors, with an electric motor and an inverter for each motor. In order to provide an aircraft having a greater payload, connecting bars are provided between the motors. In that resp... | 04/29/2008 |
| 7363120 | Method of adjusting at least one defective rotor of a rotorcraft The present invention relates to a method of adjusting at least one defective, main or anti-torque rotor of a particular rotorcraft. The method uses a neural network representing the relationships between firstly accelerations representative of vibration generated o... | 04/22/2008 |
| 7344106 | Vertical take-off and landing aircraft A vertical take-off and landing aircraft has an airframe body that defines a loop-shaped path of travel for a plurality of movably-mounted wings that are transversely disposed relative to a longitudinal axis of the aircraft. The airframe body has two side frames tha... | 03/18/2008 |
| 7324016 | Navigational indicating system for rotary wing aircraft Red, green and white colored lights are emitted from navigation orientation indicating light emitting devices mounted within a helicopter rotor blade near its tip. The light emissions from such devices are under control to respectively indicate passage of the rotor ... | 01/29/2008 |
| 7320629 | Steering device for small watercraft In a steering device for a small watercraft that has at least two outboard motors which propulsive directions and propulsive forces are individually controllable. The steering device can have a steering wheel that can be inclined relative to an axis of a steering sh... | 01/22/2008 |
| 7296767 | Variable speed transmission for a rotary wing aircraft A transmission gearbox for a rotary-wing aircraft includes a main gearbox and a variable speed gearbox in meshing engagement with the main rotor gearbox. The variable speed gearbox permits at least two different RPMs for the main rotor system without disengaging the... | 11/20/2007 |
| 7284420 | Air data system and method for rotary aircraft An air data system and method for a rotary aircraft is described. The air data system includes a plurality of flush ports connected via tubing to a plurality of air flow sensors that can measure air flow speeds as low as approximately 0.02 knots. The flush ports are... | 10/23/2007 |
| 7284726 | Self extinguishing composite primary structure A helicopter with one or more components formed from a self extinguishing composite primary structure material to provide increased passenger safety. The self extinguishing composite primary structure material has a core formed from a fire retardant material, which ... | 10/23/2007 |
| 7278606 | Helicopter having a fusilage section and a tail section coupled thereto A helicopter having: a flow control device provided at one of a lower portion of a side surface of a fuselage and a portion on a lower surface of the fuselage near the side surface and extending downward. ... | 10/09/2007 |
| 7275711 | Gas-powered tip-jet-driven compound VTOL aircraft A compound Vertical TakeOff and Landing (VTOL) aircraft. In a specific embodiment, the VTOL aircraft includes a gas-powered tip-jet driven rotary-wing and a fixed-wing that is capable of providing necessary lift to the aircraft during certain forward-flight regimes ... | 10/02/2007 |
| 7273195 | Vertical lift craft A vertical lift craft includes a vertical lift craft, a powered rotor system including two counter-rotating lift rotors rotatably mounted to the body and a cage fixed to the body and extending about the powered rotor system, the cage including flexible rods extendin... | 09/25/2007 |
| 7270520 | Fairing for the rotor of a rotorscraft A fairing C is arranged on a rotor 9 of a rotorcraft having a cap 5 secured to the end 10 of the head of the rotor 9. The fairing C further comprises at least one air deflector member D provided with a ring 6 and spacers 4, ... | 09/18/2007 |
| 7270296 | Small-size high-speed transmission system for use in microturbine-powered aircraft A transmission system that is used in conjunction with a microturbine engine for propelling an aircraft body, such as a propeller-based fixed-wing aircraft or a rotor-based vertical lift aircraft, or for a wide variety of other applications. The output shaft of the ... | 09/18/2007 |
| 7267299 | Aircraft An aircraft includes a fuselage with a circular airfoil body supported thereabove on a vertical drive shaft mechanism. The airfoil body includes an upper disk forming an upper surface of the body and a lower disk forming a lower surface of the body in which the uppe... | 09/11/2007 |
| 7264199 | Unloaded lift offset rotor system for a helicopter A rotor system (12) for a helicopter (10) includes a rotating shaft (82). A gimbaled hub assembly (56) is coupled to the rotating shaft (82). Rotating blades (24) and non-rotating blades (33) are coupled to the gimbal... | 09/04/2007 |
| 7255623 | Self-stabilizing rotating toy A rotating toy may then include a hub having a central axis and a lower portion; a plurality of counter rotating blades extending outwardly from the lower portion of the hub, the plurality of counter rotating blades having a tip connected to an outer ring; a single ... | 08/14/2007 |
| 7231997 | Hybrid drive powered lift platform An air-based thrust recovery system for use in a powered lift platform utilizing fixed-pitch propellers is provided. The system utilizes an air compressor coupled to the drive motor of the platform and an on-board, high pressure tank for air storage. The fixed-pitch... | 06/19/2007 |
| 7229251 | Rotor hub fairing system for a counter-rotating, coaxial rotor system A rotor hub fairing system includes an upper hub fairing, a lower hub fairing and a shaft fairing therebetween. The rotor hub fairing system is sized and configured to reduce the overall drag on a dual, counter-rotating, coaxial rotor system. Preferably, the rotor h... | 06/12/2007 |
| 7226120 | Skeleton member structure A skeleton member structure having a tubular structural member (11, 211) filled with granular materials for absorbing impact energy. The granular materials includes a granular material having a hollow portion (12a, 212a) or a porou... | 06/05/2007 |
| 7216831 | Shape changing structure In one preferred embodiment, a structure is provided that includes a body having a first wall and a second wall. At least one appending component extends from an end of the body and includes a first skin and second skin. The structure additionally includes at least ... | 05/15/2007 |
| 7213867 | Shock absorbing device for vehicle and shock absorbing structure for vehicle A shock absorbing device for a vehicle, absorbing an axial compression load by means of plastic deformation in order to absorb an impact energy, is hollowed and has an octagonal cross section. ... | 05/08/2007 |
