| Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
|---|
| 09/06/1994 | US5344102 Rotary-wing blade of rotary-wing aircraft |
| 09/06/1994 | US5344101 Safeguard system of a speed increasing/reducing mechanical assembly, especially of the helicopter "gear box" type, in case of lubricating oil loss |
| 09/06/1994 | US5344100 Vertical lift aircraft |
| 08/23/1994 | US5340279 Snubber assembly for a rotor assembly having ducted, coaxial counter-rotating rotors |
| 08/18/1994 | WO1994018070A2 Fail safe drive shaft system |
| 08/04/1994 | WO1994017303A1 Windmill blade |
| 08/04/1994 | DE4302791A1 Portable helicopter attachment for lifting single person |
| 08/03/1994 | EP0448559B1 Lift-jet engine for independent operation or for use in an aircraft |
| 07/26/1994 | US5332362 Blade for aircraft rotary wings, with swept-back tip |
| 07/26/1994 | US5332072 Strut assemblies |
| 07/26/1994 | US5331881 Helicopter integrated fire and flight control having azimuth and pitch control |
| 07/21/1994 | WO1994016238A2 Coupling device for drive shaft segments |
| 07/19/1994 | US5330322 Cylindrical elastomeric bearing with large angular deflection |
| 07/19/1994 | US5330092 Multiple density sandwich structures and method of fabrication |
| 07/19/1994 | CA1330788C Lifting and carrying device for moving of loads by aircraft |
| 07/12/1994 | US5328131 System for producing lift |
| 07/07/1994 | WO1994015113A1 Tubular elastomer damper |
| 07/07/1994 | WO1994014650A1 Helicopter rotor blade having a replaceable anhedral tip |
| 07/07/1994 | WO1994000347A3 An unmanned aerial vehicle having ducted, coaxial counter-rotating rotors |
| 07/07/1994 | CA2145865A1 Helicopter rotor blade having a replaceable anhedral tip |
| 06/29/1994 | EP0604299A1 Blade-hub lamellar connection device, rotor blade and rotor featuring it |
| 06/29/1994 | EP0604298A1 Composite thermoplastic blade, in particular for helicopter shrouded tail rotor, and its manufacturing process |
| 06/29/1994 | EP0604297A1 Composite thermoplastic blade, in particular for helicopter shrouded tail rotor, and its manufacturing procedure with injection stop |
| 06/29/1994 | CA2112067A1 Unmanned vertical take-off and landing, horizontal cruise, air vehicle |
| 06/24/1994 | CA2111889A1 Blade made of thermoplastic composite, in particular for ducted tail rotor of a helicopter, and its method of manufacture |
| 06/24/1994 | CA2111887A1 Blade made of thermoplastic composite, in particular for ducted tail rotor of a helicopter, and its method of manufacture with injection step |
| 06/24/1994 | CA2111373A1 Blade-hub linkage device with a laminate attachment, rotor blade fitted with such an attachment, and rotor equipped with such blades |
| 06/23/1994 | WO1994013530A2 Rotor blade balance weight assembly |
| 06/23/1994 | DE4242653A1 Cell for helicopter |
| 06/23/1994 | CA2146760A1 Rotor blade balance weight assembly |
| 06/21/1994 | US5322415 Pitch actuation system restraint device for a helicopter blade folding system |
| 06/15/1994 | EP0601527A1 System for controlling higher harmonic vibrations in helicopter rotor blades |
| 06/14/1994 | US5320494 Helicopter rotor blade having a replaceable anhedral tip |
| 06/14/1994 | US5320491 Wind turbine rotor aileron |
| 06/08/1994 | EP0600797A1 Flapping locking device for helicopter rotor blades |
| 06/07/1994 | US5318248 Vertical lift aircraft |
| 05/31/1994 | US5316442 Articulated rotor head for gyroplanes |
| 05/31/1994 | US5316240 Method and device for filtering the vibratory excitations transmitted between two parts especially between the rotor and the fuselage of a helicopter |
| 05/31/1994 | CA1329929C Helicopter anti-torque system using fuselage strakes |
| 05/26/1994 | WO1994011245A1 A pitch actuation system restraint device for a helicopter blade folding system |
| 05/24/1994 | US5314308 System for controlling higher harmonic vibrations in helicopter rotor blades |
| 05/18/1994 | EP0597038A1 Ducted fan and pitch controls for tail rotor of rotary wing aircraft |
| 05/11/1994 | WO1994010034A1 Rotary wing comprising two coaxial rotors |
| 05/11/1994 | WO1994010033A1 An ultralight aircraft, in particular a helicopter |
| 05/11/1994 | EP0596046A1 Ducted tail rotor for rotary wing aircraft providing torque reaction and yaw attitude control |
| 05/10/1994 | US5310315 Low-vulnerability device for the control of helicopter rotor by cyclic plates |
| 05/10/1994 | US5310314 Directional control system for rotary wing aircraft |
| 05/10/1994 | US5310137 Helicopter active noise control system |
| 05/10/1994 | US5310017 Vibration isolation support mounting system |
| 05/04/1994 | CN1086184A An ultralight aircraft, in particular a heli-copter |
| 04/26/1994 | US5306120 System to protect against erosion a body subjected to an airflow |
| 04/26/1994 | US5306119 Ducted tail rotor for rotor craft |
| 04/26/1994 | US5305968 Device for automatically stabilizing the yaw motion of a helicopter |
| 04/21/1994 | DE4234650A1 Helicopter bladed rotor generating suction or thrust force - has sound absorbing, damping element behind rotor face in rotor rotation sense |
| 04/19/1994 | US5304036 Rotor system |
| 04/19/1994 | US5303879 Aircraft with a ducted fan in a circular wing |
| 04/19/1994 | CA1328650C Composite material blade with two span and double casing structure, honeycomb core sandwich fiberglass graminates and fabrication process thereof |
| 04/12/1994 | US5301900 Autogyro aircraft |
| 04/12/1994 | US5301885 Method and apparatus for fabricating unidirectional materials for helicopter parts |
| 04/06/1994 | CN1084818A Wire control electric airplane |
| 04/05/1994 | US5301112 Transient free synchronizer for autopilot systems |
| 04/05/1994 | US5299912 Drive system for changing the diameter of a variable diameter rotor |
| 04/05/1994 | US5299759 Helicopter turn coordination and heading hold mode control |
| 03/30/1994 | EP0589091A1 Control mechanism for helicopter rotor blades |
| 03/30/1994 | CN1084473A Emergency system for air runaway of helicopter |
| 03/29/1994 | US5297934 Compensation for kinematic foreshortening effect in pitch control system for rotary wing aircraft |
| 03/29/1994 | US5297759 Rotary aircraft passively stable in hover |
| 03/29/1994 | CA1328132C Arrangement for controlling the performance of bob-up/bob-down maneuvers by a helicopter |
| 03/24/1994 | DE4201492A1 Rotor for flying device - has blades with stabilisers on tips having bendable and retaining cables, bendable ones being attached to drum in centre of rotor |
| 03/23/1994 | EP0588360A1 Less noisy helicopter |
| 03/22/1994 | US5295643 Unmanned vertical take-off and landing, horizontal cruise, air vehicle |
| 03/18/1994 | CA2105924A1 Less noisy helicopter |
| 03/17/1994 | WO1994005545A1 Increasing lift on helicopter rotor blades and airplane propellers |
| 03/16/1994 | EP0491017B1 Safety device for helicopters and similar machines having rotors |
| 03/16/1994 | CN1083788A Fuselage structure for helicopter |
| 03/15/1994 | US5293974 Device for the transmission of static forces and for the filtration of vibratory excitations between two components |
| 03/03/1994 | WO1994004842A1 Fluid-and-elastomer device |
| 03/01/1994 | US5289994 Equipment carrying remote controlled aircraft |
| 02/23/1994 | CN1082774A HF Antenna for a helicopter |
| 02/22/1994 | US5288036 Pivoting wire deflection and severing system |
| 02/17/1994 | WO1994003938A1 Hf antenna for a helicopter |
| 02/15/1994 | US5286170 Helicopter wire strike cutter |
| 02/15/1994 | US5286167 Spar-to-hub joint for a flexbeam helicopter rotor |
| 02/09/1994 | EP0582364A1 HF antenna for a helicopter |
| 02/09/1994 | CN1023692C Rotatable viscoelastic arrangement for buffer and elastic recovery in rotor blades track for rotorcraft and rotor head including arrangement |
| 02/08/1994 | US5284420 Plastics multi-blade variable-pitch rotor |
| 02/08/1994 | US5284419 Propeller with blades which can be twisted |
| 02/03/1994 | WO1994002357A1 Variable diameter rotor drive system |
| 02/02/1994 | EP0581626A1 Helicopter fuselage structure |
| 02/01/1994 | CA1326656C Flapping stop for rotary-wing aircraft rotor |
| 01/25/1994 | US5281099 Integrated spline/cone seat subassembly for a rotor assembly having ducted, coaxial counter-rotating rotors |
| 01/20/1994 | WO1994001325A1 Wind turbine rotor aileron |
| 01/18/1994 | CA1326228C Helicopter rotor blades |
| 01/12/1994 | CN1080609A Electric power helicopter |
| 01/11/1994 | US5277381 Rotary wing aircraft shrouded propeller sidewall thruster |
| 01/11/1994 | US5277380 Toroidal fuselage structure for unmanned aerial vehicles having ducted, coaxial, counter-rotating rotors |
| 01/06/1994 | WO1994000347A2 An unmanned aerial vehicle having ducted, coaxial counter-rotating rotors |
| 01/06/1994 | WO1994000343A1 Gyroplane, method of its transforming into parking configuration and method of its centre-of-gravity adjustment |
| 01/05/1994 | EP0455797B1 Apparatus and method for folding and locking rotor blades |
| 01/05/1994 | CN1080253A Flyer |