| Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
|---|
| 08/27/1997 | CN1157788A Fixed paddle co-axial double dual-rotary vane helicopter |
| 08/20/1997 | EP0790181A1 Rotary wing aircraft |
| 08/20/1997 | EP0790180A1 Rotor system vibration absorber |
| 08/12/1997 | US5655878 Higher harmonic control apparatus for a helicopter rotor |
| 08/06/1997 | CN1156433A Method and device for balancing helicopter rotor blades |
| 07/30/1997 | EP0785889A1 Snubber bearing mounting assembly for bearingless rotors |
| 07/30/1997 | EP0605656B1 Device for automatically stabilizing the yaw motion of a helicopter |
| 07/24/1997 | WO1997026185A1 Slotted cam control system |
| 07/24/1997 | WO1997026039A1 Soft actuators and artificial muscles |
| 07/24/1997 | CA2243527A1 Soft actuators and artificial muscles |
| 07/24/1997 | CA2241940A1 Slotted cam control system |
| 07/23/1997 | EP0700350B1 A flexbeam for a helicopter bearingless main rotor assembly |
| 07/22/1997 | US5649678 Operation of a helicopter |
| 07/16/1997 | EP0783431A1 Fiber reinforced composite spar for a rotary wing aircraft and method of manufacture thereof |
| 07/15/1997 | US5647726 Rotor system vibration absorber |
| 07/10/1997 | WO1997024260A2 Method and apparatus for controlling an unmanned symmetric aircraft |
| 07/10/1997 | CA2241114A1 Method and apparatus for controlling an unmanned symmetric aircraft |
| 07/09/1997 | EP0782956A1 Aerofoil |
| 07/08/1997 | US5645670 Method for applying a skin layer to an airfoil structure |
| 07/08/1997 | US5645400 Composite cuff structure for helicopter rotors |
| 07/08/1997 | US5645249 Helicopter stowable horizontal stabilizer |
| 06/26/1997 | WO1997022817A1 Method for fabricating a split path transmission providing equal torque splitting |
| 06/26/1997 | WO1997022517A1 Drive system for a jet-engined rotary wing aircraft |
| 06/26/1997 | CA2240361A1 Method for fabricating a split path transmission providing equal torque splitting |
| 06/25/1997 | CN1152897A Edge-of-part scribe device |
| 06/25/1997 | CN1152896A Apparatus and method for fabricating a helicopter main rotor blade |
| 06/24/1997 | US5641269 Helicopter rotor seal assembly |
| 06/24/1997 | US5641133 Rotorcraft fuselage modal frequency placement using resilient mounting connections |
| 06/19/1997 | WO1997022079A1 Method and apparatus for controlling an electronic device during take-off and landing of an aircraft |
| 06/19/1997 | WO1997021588A1 Rotor system having alternating length rotor blades for reducing blade-vortex interaction (bvi) noise |
| 06/19/1997 | CA2240160A1 Rotor system having alternating length rotor blades for reducing blade-vortex interaction (bvi) noise |
| 06/17/1997 | US5639215 Helicopter rotor equipped with flaps |
| 06/17/1997 | US5639214 Vibration damping apparatus for helicopter rotor |
| 06/12/1997 | WO1997020736A2 Rotor blade swashplate-axis rotation and gyroscopic moments compensator |
| 06/12/1997 | WO1997020735A2 Reconfigurable helicopter flight control system |
| 06/12/1997 | WO1997020734A2 Flight control system for jet powered tri-mode aircraft |
| 06/12/1997 | DE19620427C1 Rotor blade connection for helicopters |
| 06/11/1997 | EP0777601A1 Method and apparatus for balancing helicopter rotor blades |
| 06/10/1997 | US5636970 Device for damping the drag of the blades of a rotor |
| 06/10/1997 | US5636969 Torque tube/spar assembly for variable diameter helicopter rotors |
| 06/04/1997 | EP0776822A1 Helicopter rotor blade with reinforced shielding against lightning strike |
| 06/03/1997 | US5634611 Counter-torque device with rotor and flow straightening stator, both of which are ducted, and inclined flow-straightening vanes |
| 05/29/1997 | WO1997015492A3 Hybrid aircraft |
| 05/22/1997 | DE19647166A1 Locking device for detachable coupling of segmented drive shafts of helicopter tail rotor |
| 05/21/1997 | EP0774411A2 Helicopter and method for reducing vibration of a helicopter fuselage |
| 05/21/1997 | EP0774084A1 Fluid damping devices |
| 05/21/1997 | EP0774071A1 Windmill blade |
| 05/21/1997 | EP0773881A1 Yaw control and stabilization system for helicopters |
| 05/21/1997 | CN1150470A Self-scavenging hybrid lubrication subsystem |
| 05/13/1997 | US5628620 Main rotor system for helicopters |
| 05/09/1997 | WO1997016343A1 Aircraft |
| 05/07/1997 | EP0771284A2 Apparatus and methods for fabricating a helicopter main rotor blade |
| 05/07/1997 | EP0771283A1 An eop scribe device |
| 05/07/1997 | EP0771265A1 Method and apparatus for forming airfoil structures |
| 05/07/1997 | CN1149277A A stacked compound planetary gear train for an upgraded powertrain system for a helicopter |
| 05/06/1997 | US5626312 Piezoelectric actuator |
| 05/01/1997 | WO1997015492A2 Hybrid aircraft |
| 04/30/1997 | DE19540272A1 Ringflügel-Flugkörper Annular wing missile |
| 04/29/1997 | US5624232 Device for controlling the pitch of the blades of a rotorcraft rotor |
| 04/24/1997 | DE19638695A1 Modularer Schwingungskraftgenerator und Verfahren zu dessen Betrieb Modular vibratory force generator and method for operating the |
| 04/23/1997 | EP0769094A1 Erosion resistant surface protection |
| 04/22/1997 | US5621967 Method of making a leading edge weight retention assembly for a helicopter rotor |
| 04/22/1997 | CA2055953C Rotary wing aircraft rotor hub beam |
| 04/16/1997 | EP0768239A2 Apparatus and method for adjusting rotor blade tracking |
| 04/15/1997 | US5620305 Hub for rotary wing aircraft |
| 04/15/1997 | US5620303 Rotor system having alternating length rotor blades for reducing blade-vortex interaction (BVI) noise |
| 04/15/1997 | US5620068 Method and apparatus for actively adjusting and controlling a resonant mass-spring system |
| 04/15/1997 | US5619797 Flow-straightener vane for counter-torque device with ducted rotor and ducted flow-straightening stator, for helicopter |
| 04/09/1997 | CN1147232A Expandable spar filler block device |
| 04/02/1997 | EP0765446A1 Self-scavenging, hybrid lubrication subsystem |
| 03/26/1997 | EP0717697B1 Wire cutter system having aerodynamic, microwave energy absorbing fairing |
| 03/26/1997 | EP0696983B1 Ancillary aerodynamic structures for an unmanned aerial vehicle having ducted, coaxial counter-rotating rotors |
| 03/19/1997 | EP0763743A1 Method and apparatus for determining the airspeed of rotary wing aircraft |
| 03/19/1997 | EP0763222A1 Inertial velocity command system |
| 03/12/1997 | EP0760777A1 A stacked compound planetary gear train for an upgraded powertrain system for a helicopter |
| 03/11/1997 | US5609472 Rotor blade for a rotary-wing aircraft |
| 03/11/1997 | US5609312 Model helicopter |
| 03/06/1997 | WO1997008050A1 Gyroplane |
| 03/06/1997 | CA2230711A1 Gyroplane |
| 03/04/1997 | US5607122 Tail rotor authority control for a helicopter |
| 02/27/1997 | WO1997007019A1 Half-plow vortex generators for rotorcraft blades for reducing blade-vortex interaction noise |
| 02/26/1997 | EP0759196A1 Turn coordination inhibit for rotary wing aircraft control system |
| 02/26/1997 | EP0759128A1 Hybrid fluid and elastomer damper |
| 02/26/1997 | EP0758972A1 An unmanned vtol ground surveillance vehicle |
| 02/26/1997 | EP0651713A4 Variable diameter rotor drive system. |
| 02/25/1997 | US5605440 Flow-straightener vane made of composite, flow-straightener including it, for a counter-torque device with ducted rotor and ducted flow-straightening stator, and method for manufacturing them |
| 02/20/1997 | WO1997006058A1 Helicopter rotor blade mounting assembly |
| 02/13/1997 | WO1997005017A1 System for controlling and automatically stabilizing the rotational motion of a rotary wing aircraft |
| 02/13/1997 | WO1997005016A1 Operation of a helicopter |
| 02/12/1997 | EP0757647A1 Main rotor system for helicopters |
| 02/11/1997 | US5601408 Axisymmetric elastomeric bearing assembly for helicopter rotors |
| 02/11/1997 | US5601257 Air vehicle yaw control system |
| 02/04/1997 | US5599167 Device for controlling the pitch of the blades of a rotorcraft rotor |
| 02/04/1997 | US5598760 EOP scribe device |
| 01/28/1997 | US5597138 Yaw control and stabilization system for helicopters |
| 01/22/1997 | EP0754620A1 Tilt rotor helicopter |
| 01/16/1997 | EP0700828A4 Method of controlling the resultant aerodynamic force produced by a propeller and a device for carrying out the said method |
| 01/15/1997 | EP0753456A1 Power transmission device for helicopter |
| 12/31/1996 | US5588801 Flap stops device with retractable upper stops ring, and rotor head including it |
| 12/31/1996 | US5588800 Blade vortex interaction noise reduction techniques for a rotorcraft |