| Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
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| 05/11/2004 | US6732973 Stabilizer for a propeller related vehicle |
| 05/06/2004 | WO2003039950A9 Propellers, propeller stabilizers, and propeller related vehicles |
| 05/06/2004 | WO2003024790A9 Optimum speed tilt rotor |
| 05/06/2004 | US20040084818 Fluid-elastomeric damper assembly including internal pumping mechanism |
| 05/04/2004 | US6729839 Toroidal and compound vortex attractor |
| 05/04/2004 | US6729576 Composite tail cone assembly |
| 05/04/2004 | US6729139 Engine control system |
| 04/28/2004 | EP1412245A1 Helicopter main rotor blade balance weight retention assembly |
| 04/22/2004 | WO1994016238A3 Coupling device for drive shaft segments |
| 04/22/2004 | US20040075018 Unmanned helicopter, takeoff method of unmanned helicopter, and landing method of unmanned helicopter |
| 04/22/2004 | US20040075017 Control of an aircraft as a thrust-vectored pendulum in vertical, horizontal and all flight transitional modes thereof |
| 04/21/2004 | EP1244873B1 Use of a butt joint for rotor blades |
| 04/15/2004 | US20040070311 Piezoelectric extension actuator |
| 04/15/2004 | US20040069901 Aircraft and hybrid with magnetic airfoil suspension and drive |
| 04/15/2004 | US20040069145 Vortex vacuum cleaner nozzle with means to prevent plume formation |
| 04/15/2004 | DE10306417A1 Aircraft position measurement device, especially for use with remotely controlled helicopters, forms part of an aircraft stability system and has an optoelectronic system for measuring the displacement of ground structures |
| 04/14/2004 | EP1407965A1 Unmanned helicopter, takeoff method for unmanned helicopter, and landing method for an unmanned helicopter |
| 04/13/2004 | US6719830 Toroidal vortex vacuum cleaner centrifugal dust separator |
| 04/13/2004 | CA2082187C Gyroplane rotor braking unit |
| 04/08/2004 | DE20122107U1 Propulsion assembly for model helicopters has horizontal turbine permitting turbine flow direction as in conventional helicopters |
| 04/07/2004 | CN2609836Y Vertical/short distance take-off and landing aircraft |
| 04/06/2004 | US6717333 Piezoelectric actuating device for controlling the flaps on the rotor blade of a helicopter |
| 04/06/2004 | US6715992 Helicopter blade and method of manufacture |
| 04/06/2004 | US6715711 Hub-protecting cap for a helicopter tail rotor |
| 04/01/2004 | WO2004027434A1 Measuring and stabilising system for machine-controllable vehicles |
| 04/01/2004 | WO2004026689A1 Torsionally de-coupled engine mount system |
| 04/01/2004 | WO2003106259A3 Controlable rotorcraft using a pendulum |
| 04/01/2004 | WO2002064425A9 Coaxial helicopter with one cyclic pitch control rotor |
| 04/01/2004 | DE10258545A1 Aircraft position measurement device, especially for use with remotely controlled helicopters, forms part of an aircraft stability system and has an optoelectronic system for measuring the displacement of ground structures |
| 03/31/2004 | EP1403180A2 External airbag protection system for helicopters |
| 03/30/2004 | US6712313 Constant velocity drive rotary-wing aircraft rotor with torque splitting differential |
| 03/30/2004 | CA2272413C Hovering aircraft |
| 03/25/2004 | WO2004024558A2 Fixed wing aircraft having powered rotor vtol capability with rotor blades stowable during horizontal flight |
| 03/25/2004 | US20040056154 VTOL personal aircraft |
| 03/25/2004 | US20040056145 Method for retrofitting an inertia reel access door to an ejection seat |
| 03/25/2004 | US20040056144 Dual-flight mode tandem rotor wing |
| 03/23/2004 | US6708921 Composite flapping flexure |
| 03/23/2004 | US6708920 Air vehicle |
| 03/18/2004 | WO2004022424A2 Retractable lifting blades for aircraft |
| 03/18/2004 | WO2002098732A3 Vehicles particularly useful as vtol vehicles |
| 03/11/2004 | WO2003086858A8 Method for producing a lift and a horizontal thrust |
| 03/11/2004 | DE20314042U1 Model helicopter with swashplate mounted not on rotor shaft but in ring-shaped guide via guide webs |
| 03/10/2004 | EP1395489A2 Anti-torque and yaw-control system for a rotary-wing aircraft |
| 03/10/2004 | EP1395488A1 Rotor system vibration absorber |
| 03/10/2004 | EP1224489B1 Helicopter-borne radar system |
| 03/04/2004 | WO2003059735A3 Micro-rotocraft surveillance system |
| 03/04/2004 | WO2002071388A3 System for control of active system for vibration and noise reduction |
| 03/04/2004 | US20040042901 Extreme mu rotor |
| 03/03/2004 | EP1392987A1 Vibration damping device |
| 03/02/2004 | US6698685 Circular vertical take off and landing aircraft |
| 02/26/2004 | US20040038768 Pivoting power transmission unit with load transfer via the casing |
| 02/26/2004 | US20040037701 Helicopter rotor hub, and rotor featuring such a hub |
| 02/26/2004 | US20040035978 System for controlling the torsional stability of the drivetrain of a machine, in particular of a helicopter |
| 02/26/2004 | DE20318278U1 Dynamo for supplying electric equipment fastened on or integrated in a wheel or rotor generates electric power with a permanent magnet |
| 02/25/2004 | EP1390259A2 Ducted fan vehicles particularly useful as vtol aircraft |
| 02/25/2004 | EP1175339B1 Flap angle measurement system for an active rotor control system |
| 02/24/2004 | US6696477 Heterocyclo substituted hydroxamic acid derivatives as cyclooxygenase-2 and 5-lipoxygenase inhibitors |
| 02/24/2004 | US6695583 Snubber-vibration damper system for a bearingless main rotor |
| 02/24/2004 | US6695264 Power lever tactile cueing system |
| 02/24/2004 | US6695254 Rotary-wing aircraft rotor with constant velocity drive |
| 02/24/2004 | US6695253 Method and apparatus for folding/unfolding the blades of a rotary-wing aircraft rotor |
| 02/24/2004 | US6695106 Method and apparatus for improved vibration isolation |
| 02/19/2004 | WO2004014726A1 Composite tail cone assembly for a helicopter |
| 02/19/2004 | WO2003095268A3 Retrofitting ejection seat with inertia reel access door |
| 02/19/2004 | US20040031879 Composite tail cone assembly |
| 02/17/2004 | US6693548 Structural monitoring system for helicopter rotor components |
| 02/17/2004 | US6691830 Device for lubricating a power gearbox with a variable orientation, particularly for a convertible tilt-rotor aircraft |
| 02/12/2004 | WO2004012993A1 Vtol vehicles |
| 02/12/2004 | WO2003018342A3 Compact vibration cancellation device |
| 02/12/2004 | US20040026564 Method and apparatus for folding/unfolding the blades of a rotary-wing aircraft rotor |
| 02/12/2004 | DE4413447B4 Verfahren und Vorrichtung zum aktiven Einstellen und Steuern eines resonanten Masse-Feder-Systems Method and apparatus for actively adjusting and controlling a resonant mass-spring system |
| 02/10/2004 | US6689225 Toroidal vortex vacuum cleaner with alternative collection apparatus |
| 02/10/2004 | US6688767 Self-aligning dynamic hinge sleeve |
| 02/10/2004 | US6687951 Toroidal vortex bagless vacuum cleaner |
| 02/05/2004 | WO2001069058A3 Fluid loading system |
| 02/04/2004 | EP1385738A1 Composite rotor blade and method of manufacture |
| 02/04/2004 | EP1185456B1 Device for simultaneously interlocking a plurality of actuators |
| 02/04/2004 | CN1472113A Helicopper |
| 02/03/2004 | CA2093701C Single rotor helicopter with mixed anti-torque and method to counter act single rotor induced torque |
| 01/29/2004 | WO2004009723A2 Low light level illumination for rotating objects |
| 01/29/2004 | US20040018089 Vortex attractor |
| 01/29/2004 | DE10211510B4 Steuergewicht am Rotorblatt des Heckrotors eines Hubschraubers zur Einstellung des Propellermoments Control weight on the rotor blade tail rotor of a helicopter for adjusting the propeller torque |
| 01/28/2004 | EP1384896A2 Method and apparatus for modulating airfoil lift |
| 01/28/2004 | EP1384662A1 Vtol micro-aircraft |
| 01/28/2004 | EP1383680A1 Dual trunnion hub-to-mast assembly |
| 01/22/2004 | WO2004007282A2 A rotary-wing aircraft having horizontal stabilizer |
| 01/22/2004 | US20040013524 Method for determining the angle of a rotor blade pertaining to a wind energy installation |
| 01/22/2004 | CA2493087A1 Rotary-wing aircraft |
| 01/21/2004 | EP1382527A1 Tilting power transmission box with load transfer through the housing |
| 01/21/2004 | EP1175338B1 Actuation system for an active rotor control system |
| 01/21/2004 | CN2600337Y Propeller helicopter driven by air injection |
| 01/20/2004 | US6680554 Aircraft, particularly a helicopter, transmission system |
| 01/15/2004 | US20040007645 Rotary-wing aircraft |
| 01/15/2004 | US20040007644 Rotor craft |
| 01/15/2004 | US20040007080 Fuselage pitot-static tube |
| 01/14/2004 | EP1212541B1 Hybrid ball bearing with oblique contact, and axial stop comprising same |
| 01/13/2004 | US6677683 System for supplying power to ROSAR transponders, including transmitting and receiving antennas for ROSAR devices |
| 01/13/2004 | US6676526 Coupling anti-flail cup |
| 01/13/2004 | US6676377 Device for simultaneously interlocking a plurality of actuators |
| 01/13/2004 | US6676074 Dual piston drag damper for rotary-wing aircraft rotor |