| Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
|---|
| 12/28/1993 | US5273398 Rotor blade balance weight assembly |
| 12/28/1993 | CA1325628C Hybrid helicopter rotor hub retention plate |
| 12/28/1993 | CA1325627C Composite material blade and fabrication process thereof |
| 12/28/1993 | CA1325624C Torsionally flexible link arm with integrated cushioning, in particular for linking a rotor blade and a hub, and rotor and hub equipped with said arm |
| 12/22/1993 | CN2150146Y Operating device for helicopter |
| 12/21/1993 | US5271295 Mechanism for transmitting power between a driving shaft and two assemblies to be driven |
| 12/21/1993 | US5271288 Helicopter noise reduction through gearing modifications |
| 12/14/1993 | US5269657 Aerodynamically-stable airfoil spar |
| 12/14/1993 | US5269654 Tail rotor assembly for helicopters |
| 12/14/1993 | US5269489 Strut assemblies |
| 12/09/1993 | WO1993024873A1 Helicopter turn coordination and heading hold mode control |
| 12/09/1993 | WO1993024365A1 Variable diameter rotor having an offset twist |
| 12/07/1993 | US5267833 Gyrocraft rotor hub body |
| 11/30/1993 | US5266008 Fail-safe nut retainer for a helicopter |
| 11/30/1993 | US5266005 Rotor head for rotary wing aircraft |
| 11/30/1993 | US5265707 Interrupting device in a friction type one-way clutch |
| 11/25/1993 | WO1993023715A1 Helicopter integrated fire and flight control having azimuth and pitch control |
| 11/25/1993 | CA2118024A1 Helicopter integrated fire and flight control having azimuth and pitch control |
| 11/23/1993 | US5263846 Self-actuated rotor system |
| 11/23/1993 | US5263821 Mid-beam jointed reconfigurable bearingless main rotor assembly |
| 11/18/1993 | DE4216333A1 Frame for tandem bicycle - has two cranks and crank-rocker-linkage with over-long drive chains, rocker arms and chain tensioners |
| 11/16/1993 | CA1324366C Gyroplane |
| 11/10/1993 | EP0569288A1 Mechanical assembly with a detector of stress threshold overshoot in translation |
| 11/09/1993 | US5259574 Safety device for helicopters and similar equipment with rotors |
| 11/03/1993 | EP0527135A4 Method and apparatus for structural actuation and sensing in a desired direction |
| 10/28/1993 | WO1993021460A1 Frequency cutting rigid mechanical linkage device |
| 10/28/1993 | WO1993021064A1 Helicopter active noise control system |
| 10/27/1993 | EP0566891A1 Vertical lift aircraft |
| 10/26/1993 | US5255871 Helicopter having rotors equipped with flaps |
| 10/20/1993 | EP0566452A1 Single-rotor helicopter with mixed counter-torque system and method to counter the torque induced by this single rotor |
| 10/19/1993 | US5253979 Variable diameter rotor having an offset twist |
| 10/13/1993 | EP0565413A1 Rotorcraft rotor blade with tip sweepback |
| 10/13/1993 | CN1077252A End-vane guided propeller and application thereof |
| 10/12/1993 | US5251883 Elastic connecting bar for a system for active control of vibrations |
| 10/12/1993 | US5251847 Tail rotor anti-torque system for a helicopter |
| 10/12/1993 | CA1323018C Elastic diagonal strut with hydro-mechanical resonator, and shock-absorbing device incorporating said diagonal strut |
| 10/07/1993 | DE4307294A1 Reverse-torque-counteraction system for gear-driven external rotors - transfers lubricant to tooth flanks on engagement and use pressure generated to aid disengagement |
| 10/05/1993 | US5249926 Blade retention pin system for a helicopter blade folding system |
| 10/05/1993 | US5249925 Variable-pitch multi-blade rotor, in particular for the rear anti-torque system of a rotating wing aircraft |
| 10/05/1993 | US5249470 Rotor blade tracking devices |
| 09/30/1993 | WO1993018966A1 Autogyro aircraft |
| 09/29/1993 | EP0562899A1 Sight device for a rotorcraft |
| 09/29/1993 | EP0562527A1 Tail rotor for rotor craft |
| 09/28/1993 | US5248242 Aerodynamic rotor blade of composite material fabricated in one cure cycle |
| 09/22/1993 | EP0561046A1 Erosion shield for an aerofoil surface |
| 09/21/1993 | US5246344 Helicopter rotor blade with improved performance characteristics |
| 09/21/1993 | US5246188 Wing turbines in conjuction with propulsion systems for aircraft and helicopters |
| 09/16/1993 | WO1993018320A1 Helicopter noise reduction through gearing modifications |
| 09/15/1993 | EP0396623B1 Apparatus and method for tracking a rotating blade to determine parameters associated with the rotation of that blade |
| 09/12/1993 | WO1993024367A1 Vector rotary wing ensemble |
| 09/07/1993 | US5242267 Bearingless main rotor assembly torque tube |
| 09/07/1993 | US5242266 Gyrocraft articulated rotor head with intermediate sleeves between hub and blades |
| 09/07/1993 | US5242130 Method and device for the reduction of the oscillations of a divergent nature of the fuselage of a helicopter |
| 08/31/1993 | US5240205 Anti-torque system for helicopters |
| 08/31/1993 | US5240204 Lift generating method and apparatus for aircraft |
| 08/24/1993 | US5239468 Automated helicopter maintenance monitoring |
| 08/17/1993 | CA1321379C Rotor arrangement for a rotorcraft |
| 08/17/1993 | CA1321378C Rotor head for rotorcraft |
| 08/17/1993 | CA1321296C With-socket hitching device; rotor blade including said device hitched to a hub |
| 08/04/1993 | EP0553490A1 Flying vehicle |
| 08/03/1993 | US5232183 Helicopter anti-torque control system utilizing exhaust gas |
| 07/30/1993 | CA2087232A1 Aircraft with a ducted fan in a circular wing |
| 07/27/1993 | US5230407 Linkage rod with shock absorbing |
| 07/27/1993 | CA1320715C Airfoiled blade |
| 07/27/1993 | CA1320708C Composite helicopter swashplate |
| 07/20/1993 | US5228834 Hub structure for a rotary wing aircraft |
| 07/20/1993 | US5228640 Device for the elastic coupling between two parts, and aircraft with rotating wings comprising said device |
| 07/13/1993 | US5226350 Drive train assembly for a rotor assembly having ducted, coaxial counter-rotating rotors |
| 07/13/1993 | CA1320187C Tail rotor |
| 07/06/1993 | US5224826 Piezoelectric helicopter blade flap actuator |
| 07/06/1993 | US5224664 Adaptive control system input limiting |
| 06/30/1993 | EP0549455A1 Cylindric elastomeric bearing system with large angular deflection |
| 06/30/1993 | EP0549454A1 Articulated rotor head for a rotorcraft |
| 06/24/1993 | DE4142037A1 Start- und landesystem Takeoff and landing system |
| 06/23/1993 | CN1073406A Aircraft having light and small wings without airfield |
| 06/20/1993 | CA2085566A1 Take-off and landing system |
| 06/16/1993 | EP0546895A1 Reduced vulnerability device to control a helicopter rotor through a swashplate |
| 06/15/1993 | US5219430 Hydraulic damper and elastic-return strut comprising such a damper |
| 06/15/1993 | US5219143 Active vibration control systems |
| 06/10/1993 | WO1993011037A1 Method for folding helicopter main rotor blades |
| 06/09/1993 | EP0545750A1 Multiple blade variable pitch rotor, in particular for rear antitorque apparatus of a rotorcraft |
| 06/08/1993 | US5217349 System and method for suppressing noise produced by rotors |
| 06/08/1993 | CA1318902C Combined bearing device for rotary - wing aircraft and rotor equipped with such bearing device |
| 06/02/1993 | EP0544186A1 Interrupting device in a friction type one-way clutch |
| 06/01/1993 | US5215502 Constant velocity elastomeric joint |
| 05/26/1993 | CN2134352Y Plate-like helicopter |
| 05/19/1993 | EP0542453A1 Strut assemblies |
| 05/18/1993 | US5211538 Method for folding helicopter main rotor blades |
| 05/14/1993 | CA2082444A1 Strut assemblies |
| 05/12/1993 | EP0541447A1 Rotorcraft rotor brake unit |
| 05/12/1993 | EP0541277A2 Integrated vibration reducing and structural health and usage monitoring system for a helicopter |
| 05/12/1993 | EP0451218B1 Individual blade control system for helicopters |
| 05/11/1993 | US5209430 Helicopter low-speed yaw control |
| 05/11/1993 | US5209429 Helicopter with retractable rotor for transport |
| 05/05/1993 | EP0540406A1 Protection system for a gear assembly, in particular a helicopter gear-box, in case of a loss of lubricating oil |
| 04/30/1993 | CA2054497A1 Aerodynamic lift device |
| 04/27/1993 | US5205715 Helicopter rotor blades |
| 04/27/1993 | US5205710 Helicopter blade crack detection system |
| 04/27/1993 | US5205512 Fluid control apparatus |
| 04/27/1993 | US5205029 Method of manufacturing a frequency adapter |