Patents
Sitemap › B64 - Aircraft; Aviation; Cosmonautics › B64C - Aeroplanes; Helicopters › B64C 27 - Rotorcraft; Rotors peculiar thereto
Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112)
01/2004
01/13/2004US6676073 Pivoting power transmission unit with peripheral face toothed gearwheels of the face gear type
01/08/2004WO2004002825A1 Helicopter
01/08/2004WO2004002824A1 Tandem powered power tilting aircraft
01/07/2004EP1377501A1 Aerodynamic article with protective coating and method of bonding metal to polyurethane
01/07/2004EP1268273B1 Piezoelectric actuating device for controlling the flaps on the rotor blade of a helicopter
01/07/2004EP1212543B1 Hybrid ball bearing with oblique contact
01/06/2004US6672539 Power generation system
01/06/2004US6672538 Transmission for a coaxial counter rotating rotor system
01/02/2004EP1375864A2 Method and apparatus for lifting and propelling rotorcraft
01/02/2004EP0931227B1 Concentric face gear transmission assembly
01/01/2004US20040001754 Combined ball-and-damper device for a helicopter rotor
01/01/2004US20040000614 Method and apparatus for lifting and propelling rotorcraft
12/2003
12/30/2003US6671590 Method and system for active noise control of tiltrotor aircraft
12/30/2003US6669137 Air vehicle having rotor/scissors wing
12/27/2003CA2432850A1 Method and apparatus for lifting and propelling rotorcraft
12/25/2003US20030235499 Multi focus hemi-spherical elastic bearing
12/24/2003WO2003106259A2 Control of an aircraft as a thrust-vectored pendulum in vertical, horizontal and all flight transitional modes thereof
12/24/2003CN1463338A Vibration damping device
12/24/2003CA2489591A1 Controlable rotorcraft using a pendulum
12/23/2003US6666649 Helicopter individual blade control system
12/23/2003US6666648 Directional elastomeric coupler
12/23/2003US6666407 Helicopter undercarriage
12/23/2003US6666404 Tripodal modular unmanned rotorcraft
12/23/2003US6666102 Flexible bearing arrangement for double helical pinion
12/18/2003US20030230668 Helicopter electric connecting unit, and helicopter equipped with such a connecting unit
12/17/2003EP1371554A1 Helicopter rotor hub, and rotor featuring such a hub
12/17/2003EP1370460A1 Circular vertical take-off and landing aircraft
12/17/2003EP0815006B1 Hub for rotary wing aircraft
12/16/2003US6663345 Rotor blade with control flaps
12/11/2003WO2003067351A3 Stabilisation and control of aircraft and other objects
12/10/2003CN2590867Y Double-propeller helicopter
12/09/2003US6659839 Model aircraft capable of reproducing flight attitude
12/09/2003US6659722 Composite rotor blade and method of manufacture
12/09/2003US6659395 Propellers and propeller related vehicles
12/04/2003WO2003100284A2 Variable stiffness support
12/04/2003WO2003099652A1 Lift generating and propelling device
12/04/2003WO2002087967A3 Anti-torque and yaw-control system for a rotary-wing aircraft
12/04/2003US20030225464 Behavior control apparatus and method
12/04/2003US20030223871 Snubber-vibration damper system for a bearingless main rotor
12/04/2003US20030222171 Constant velocity drive rotary-wing aircraft rotor with torque splitting differential
12/04/2003CA2718642A1 Variable stiffness support
12/03/2003EP1365847A2 Coupling
12/03/2003CN2589335Y Electromagnetic heading control device for coaxial double-rotor helicopter
12/02/2003US6655915 Drive system for the retraction/extension of variable diameter rotor systems
12/02/2003US6655631 Personal hoverplane with four tiltmotors
11/2003
11/27/2003WO2003098052A1 Integrated three function valve
11/27/2003WO2003097452A1 Closed wing
11/27/2003US20030218102 Microfabricated translational stages for control of aerodynamic loading
11/27/2003US20030218093 Transmission for a coaxial counter rotating rotor system
11/26/2003EP1364873A1 Snubber-vibration dumper for helicopter rotor
11/26/2003EP1159533B1 Centrifugal air flow control
11/26/2003CN1458030A Horizontal and vertical take-off and landing plane with tilted front rotary wing
11/25/2003US6651988 Compact actuator with hydraulic seal
11/20/2003WO2003095268A2 Retrofitting ejection seat with inertia reel access door
11/20/2003WO2002096750B1 Ducted fan vehicles particularly useful as vtol aircraft
11/20/2003US20030215333 Directional elastomeric coupler
11/20/2003US20030215332 Active control of multi-element rotor blade airfoils
11/20/2003US20030213869 Translational propulsion system for a hybrid vehicle
11/20/2003US20030213320 Flexible bearing arrangement for double helical pinion
11/18/2003US6648599 Method and control arrangement for adjusting a flap that is pivotally supported in a rotor blade of a helicopter
11/13/2003WO2003029075A3 Vtol personal aircraft
11/12/2003CN2585812Y Personal aerobat
11/11/2003US6644919 Rotor blade with flap and flap drive
11/11/2003US6644595 Fluid loading system
11/11/2003US6644590 Active system and method for vibration and noise reduction
11/11/2003US6644588 Multi-mode tiltrotor nacelle control system with integrated envelope protection
11/11/2003US6644081 System and method for adjusting helicopter blade trim tabs
11/06/2003WO2003091099A2 Rotorcraft
11/06/2003WO2003033344A3 Vertical lift flying craft with suspended payload
11/06/2003US20030206802 Drive system for the retraction/extension of variable diameter rotor systems
11/04/2003US6641365 Optimum speed tilt rotor
10/2003
10/30/2003WO2003089097A1 A model aircraft controlled by twin governor motors
10/30/2003WO2003011689A9 Helicopter main rotor blade balance weight retention assembly
10/30/2003WO2002052159A3 Compact actuator with hydraulic seal
10/30/2003US20030201362 Helicarplane
10/23/2003WO2003086858A1 Method for producing a lift and a horizontal thrust
10/23/2003WO2003086857A1 Aerodynamic lifting-thrusting propulsion device
10/23/2003US20030197092 Speed regulated model airplane with double motor
10/23/2003DE20312545U1 Personal helicopter has a cabin with a controllable rotor that rotates and lifts the helicopter off the ground
10/21/2003US6634861 Power plant for propeller aircraft
10/21/2003US6634593 Remote controlled aircraft, in particular for surveillance or inspection
10/16/2003WO2003085366A1 Method and device for detecting defects of at least one rotary wing aircraft rotor
10/15/2003EP1353419A1 Helicopter electric connecting unit, and helicopter equipped with such a connecting unit
10/15/2003EP1353293A2 Behavior control apparatus and method
10/09/2003WO2003020583A3 Rotor system for helicopters
10/08/2003CN1123487C Equipment and method for mfg. main rotor blade of helicopter
10/08/2003CN1123486C Airplane with fuselage designed as air static floating body
10/07/2003US6629674 Method and apparatus for modulating airfoil lift
10/02/2003WO2003080435A1 Autocopter, land motor vehicle which can be converted into an airmobile
10/02/2003WO2003080433A1 Device for steering a helicopter
10/02/2003WO2002096750A3 Ducted fan vehicles particularly useful as vtol aircraft
10/02/2003US20030183722 Device for controlling the pitch of the blades of a convertible aircraft rotor
10/01/2003EP1348624A1 Blade pitch control device for the rotor of a convertible aircraft
10/01/2003EP1348623A1 Rotorcraft rotor with constant velocity joint and a torque-splitting differential
09/2003
09/30/2003US6626059 Gearbox with torque division, in particular for a helicopter rotor drive
09/25/2003WO2003078246A1 Convertible vertical take-off and landing miniature aerial vehicle
09/25/2003US20030178528 Rotary-wing aircraft rotor with constant velocity drive
09/24/2003EP1346910A1 Rotor for a rotary wing aircraft having constant velocity drive
09/23/2003US6623352 Vortex air barrier
09/23/2003US6622962 Fixed wing aircraft having powered rotor VTOL capability with rotor blades stowable during horizontal flight
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