| Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
|---|
| 06/17/1998 | EP0847362A1 Gyroplane |
| 06/10/1998 | DE19717208C1 Rotor head cowling, especially for helicopter |
| 05/28/1998 | WO1998022341A1 Thrust levitation |
| 05/26/1998 | US5755558 Alternating stacked crossply and unidirectional fiber laminates in binding matrix yields high strength, damage tolerant blades for helicopter rotors |
| 05/20/1998 | EP0842846A1 Rotorcraft rotor blade with sweepback tip |
| 05/20/1998 | EP0646084B1 An unmanned aerial vehicle having ducted, coaxial counter-rotating rotors |
| 05/19/1998 | US5752672 Remotely controllable actuating device |
| 05/14/1998 | WO1998019909A1 Device and method for measuring and calibrating the control angles and control forces of a rotor blade |
| 05/14/1998 | DE19645942A1 Vorrichtung und Verfahren zum Vermessen und Kalibrieren von Rotorblatt-Steuerwinkeln und -Steuerkräften Apparatus and method for measuring and calibrating rotor blade control angles and -Steuerkräften |
| 05/12/1998 | US5750891 Method and apparatus for determining the airspeed of rotary wing aircraft |
| 05/12/1998 | US5749540 System for controlling and automatically stabilizing the rotational motion of a rotary wing aircraft |
| 05/06/1998 | EP0839104A1 Torque tube/spar assembly for variable diameter helicopter rotors |
| 05/06/1998 | EP0740807B1 Helicopter autopilot providing airspeed control |
| 04/30/1998 | DE19644705A1 Wind power generator station turbine rotor-blade setting device |
| 04/29/1998 | EP0837819A1 Operation of a helicopter |
| 04/28/1998 | US5745081 HF antenna for a helicopter |
| 04/23/1998 | WO1998016762A1 Concentric face gear transmission assembly |
| 04/22/1998 | EP0837261A1 Vibration damper, in particular for helicopter rotor |
| 04/22/1998 | EP0639500B1 Helicopter |
| 04/21/1998 | US5740987 Helicopter cyclic control assembly |
| 04/16/1998 | DE19707123C1 Cellular shell for helicopter fuselage |
| 04/15/1998 | EP0835742A2 Apparatus and methods for fabricating a helicopter main rotor blade |
| 04/14/1998 | US5738494 Optimized composite flexbeam for helicopter rotors |
| 04/14/1998 | US5738301 Rotary-wing aircraft of the compound type, and rear structural element for such an aircraft |
| 04/14/1998 | US5738300 Helicopter autopilot providing airspeed control |
| 04/07/1998 | US5735670 Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction (BVI) noise |
| 04/01/1998 | CN2277372Y Centrifugal low-altitude airplane |
| 03/31/1998 | US5732905 System for minimizing the dynamic excitation of a helicopter |
| 03/25/1998 | EP0830286A1 A hybrid composite flexbeam for a helicopter bearingless main rotor assembly |
| 03/25/1998 | EP0758972B1 An unmanned vtol ground surveillance vehicle |
| 03/24/1998 | US5730581 Rotor blade |
| 03/18/1998 | EP0828718A1 Heterocyclo substituted hydroxamic acid derivatives as cyclooxygenase-2 and 5-lipoxygenase inhibitors |
| 03/17/1998 | US5727926 Pitch link for rotary wing aircraft and automatic adjuster thereof |
| 03/17/1998 | US5727757 Slotted cam control system |
| 03/17/1998 | US5727754 Gyroplane |
| 03/10/1998 | CA2193118A1 Launch vehicle with engine mounted on a rotor |
| 03/04/1998 | EP0734343B1 Spacer for a helicopter main rotor shaft |
| 02/26/1998 | DE3821588C1 Flügelblatt mit schwachem Radarecho An airfoil with a weak radar echo |
| 02/26/1998 | DE19701403C1 Impact jointless multi-blade rotor for helicopter |
| 02/25/1998 | EP0825105A1 Shape of a helicopter blade |
| 02/25/1998 | EP0596046B1 Ducted tail rotor for rotary wing aircraft providing torque reaction and yaw attitude control |
| 02/18/1998 | EP0676015B1 Tubular elastomer damper |
| 02/11/1998 | CN1172750A Optimized composite flexbeam for helicopter rotors |
| 02/10/1998 | US5716300 Isolated ring gear for planetary gear drive systems |
| 02/05/1998 | DE19630665A1 Pitch control system for helicopter rotor |
| 01/28/1998 | CN1171356A Optimized composite flexbeam for helicopter tail rotors |
| 01/27/1998 | US5711651 Blade vortex interaction noise reduction techniques for a rotorcraft |
| 01/22/1998 | WO1998002349A1 Helicopter rotor blade control device |
| 01/21/1998 | EP0667283B1 Hybrid aircraft |
| 01/20/1998 | US5709357 Tiltrotor helicopter |
| 01/20/1998 | US5709102 Heat pump cooling-heating-dehumidifying system for electric vehicle |
| 01/15/1998 | DE19627869A1 Hubschrauber Helicopter |
| 01/07/1998 | EP0815006A1 Hub for rotary wing aircraft |
| 12/29/1997 | EP0814019A2 Remotely controllable actuating device |
| 12/11/1997 | WO1997020734A3 Flight control system for jet powered tri-mode aircraft |
| 12/10/1997 | EP0729424B1 Apparatus and method for adjusting rotor blade tracking |
| 12/10/1997 | CN1167065A Flying motor-driving helical gyro device |
| 12/09/1997 | US5695027 Adaptively tuned vibration absorber |
| 12/04/1997 | WO1997045320A1 Monolithic structures having improved flaw tolerance |
| 12/04/1997 | CA2256340A1 Monolithic structures having improved flaw tolerance |
| 11/29/1997 | CA2206361A1 Remotely controllable actuating device |
| 11/27/1997 | WO1997044241A1 Aerodyne with vertical take-off and landing |
| 11/27/1997 | WO1997044240A1 Vertical take-off aircraft |
| 11/27/1997 | WO1997044239A1 Torque tube/spar assembly for variable diameter helicopter rotors |
| 11/26/1997 | EP0808768A1 Vertical takeoff and landing aircraft |
| 11/26/1997 | EP0808767A2 Rotor blade connection |
| 11/26/1997 | EP0631553B1 Autogyro aircraft |
| 11/25/1997 | US5691391 Process for making an injection molded fan blade |
| 11/25/1997 | US5690474 Optimized composite flexbeam for helicopter tail rotors |
| 11/20/1997 | WO1997043177A1 Helicopter swash plate with integrated pump |
| 11/19/1997 | EP0742771B1 An optical tracker system |
| 11/13/1997 | DE19618810A1 Hubschrauber Helicopter |
| 11/06/1997 | WO1997041369A1 Vibration isolated ring gear for planetary gear drive |
| 11/06/1997 | CA2253392A1 Vibration isolated ring gear for planetary gear drive |
| 11/05/1997 | EP0805107A2 Propeller |
| 10/30/1997 | WO1997039945A1 An airscrew anti-eddy system |
| 10/22/1997 | EP0656850B1 Helicopter rotor blade having a replaceable anhedral tip |
| 10/21/1997 | US5678786 Reconfigurable helicopter flight control system |
| 10/16/1997 | DE19614420A1 Rotor blade for wind power plant |
| 10/15/1997 | EP0668829B1 Flight device |
| 10/14/1997 | US5676335 Airflow control system for a helicopter |
| 10/14/1997 | US5676334 Cyclic minimizer through alignment of the center of gravity and direction of flight vectors |
| 10/08/1997 | EP0799147A1 Half-plow vortex generators for rotorcraft blades for reducing blade-vortex interaction noise |
| 10/01/1997 | CN1161024A Snubber bearing mounting assembly for bearingless rotors |
| 09/30/1997 | US5672112 Zero clearance locking mechanism for a disconnect coupling device |
| 09/30/1997 | US5671651 Servohydraulic actuator |
| 09/25/1997 | WO1997034800A1 Composite cuff structure for helicopter rotors |
| 09/25/1997 | WO1997034799A1 Axisymmetric elastomeric bearing assembly for helicopter rotors |
| 09/23/1997 | US5671051 Helicopter blade tracking system |
| 09/17/1997 | EP0794896A1 Tail rotor authority control for a helicopter |
| 09/17/1997 | EP0596039B1 Compensation for kinematic foreshortening effect in pitch control system for rotary wing aircraft |
| 09/17/1997 | CN1159782A Method and apparatus for forming airfoil structure |
| 09/12/1997 | WO1997032780A1 Shape of a helicopter blade |
| 09/12/1997 | WO1997024260A3 Method and apparatus for controlling an unmanned symmetric aircraft |
| 09/11/1997 | DE19702802A1 Swivelling rotor bearing surface |
| 09/04/1997 | WO1997020736A3 Rotor blade swashplate-axis rotation and gyroscopic moments compensator |
| 09/04/1997 | WO1997020735A3 Reconfigurable helicopter flight control system |
| 09/03/1997 | EP0792414A1 Windmill blade |
| 08/28/1997 | WO1997030813A1 Shaft phase control mechanism |
| 08/27/1997 | EP0790924A2 Pitch adjustment assembly for bearingless main rotors |