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)
12/1999
12/28/1999US6007298 Optimum speed rotor
12/23/1999WO1999065768A1 Modular helicopter system
12/23/1999WO1999065766A1 Rotor or propeller with blade folding and pitch control devices
12/23/1999WO1999038770A3 Wire strike protection system with integrated antenna
12/23/1999DE19827392A1 Model air-worthy helicopter with drive mechanism
12/23/1999CA2334463A1 Rotor or propeller with blade folding and pitch control devices
12/21/1999US6004099 Rotor blade connection
12/16/1999WO1999064942A2 Navigation of helicopter with limited polar groundspeed commands
12/16/1999CA2330047A1 Navigation of helicopter with limited polar groundspeed commands
12/15/1999EP0963612A2 High-efficiency, large stroke electromechanical actuator
12/15/1999EP0963556A2 Fuselage pitot-static tube and the aerodynamic profile of its strut
12/14/1999US6002348 Pilot's aid for detecting power lines
12/14/1999US6000911 Blade with swept-back tip for the rotary wings of an aircraft
12/09/1999WO1999063218A1 Wind turbine hub
12/09/1999DE19915085A1 Rotor blade mounting for helicopter
12/09/1999DE19915084A1 Rotor blade mounting for helicopter
12/07/1999US5996934 Tethered autogyro
12/07/1999US5996933 Aircraft
12/07/1999CA2135392C Helicopter
11/1999
11/30/1999US5992794 External airbag protection system for helicopters
11/30/1999US5992793 Aerofoil
11/16/1999US5984230 Wing assemblies for aircraft
11/11/1999WO1998029303A8 Aircraft with a fuselage substantially designed as an aerostatic lifting body
11/11/1999DE19820323A1 Helicopter crew rescue by separating rotor blades
11/10/1999EP0954401A1 Shaft phase control mechanism
11/09/1999US5980206 Monolithic structure having improved flaw tolerance
11/09/1999US5979618 Vibration damper, in particular for a helicopter rotor
11/04/1999WO1999055582A2 Earth-referenced wind adjustment for hovering aircraft
11/04/1999CA2330046A1 Earth-referenced wind adjustment for hovering aircraft
11/03/1999CN1233577A Blade structure and apparatus using same
11/02/1999CA2113719C Ducted fan and pitch controls for tail rotor of rotary wing aircraft
11/02/1999CA2056289C Shroud-fin integration shelf for a helicopter empennage structure
10/1999
10/28/1999DE19837802C1 Blade hub for rotor of helicopter
10/26/1999US5973440 Structural component having means for actively varying its stiffness to control vibrations
10/26/1999US5971325 Compensation for rotorcraft pitch axis control saturation
10/26/1999US5971320 Helicopter with a gyroscopic rotor and rotor propellers to provide vectored thrust
10/13/1999EP0948442A1 Spring element and support bearing for helicopter tail rotors and supporting structures for use in space
10/13/1999EP0948441A2 Aircraft with a fuselage substantially designed as an aerostatic lifting body
10/13/1999EP0897365B1 Helicopter swash plate with integrated pump
10/12/1999CA2060122C Main rotor assembly support truss
10/12/1999CA2054914C Quiet tail rotor
10/07/1999WO1999050729A1 Integrated fire and flight control system with automatic engine torque limiting
10/07/1999WO1998029303B1 Aircraft with a fuselage substantially designed as an aerostatic lifting body
10/07/1999CA2321586A1 Integrated fire and flight control system with automatic engine torque limiting
10/06/1999EP0947422A2 Rotor blade flap driving apparatus
10/06/1999EP0774071B1 Windmill blade
10/05/1999US5961290 Helicopter blade aerofoil
10/05/1999US5961288 Process for manufacturing a composite component capable of flexing and twisting
09/1999
09/30/1999DE19914445A1 Control device for moving body, e.g. model helicopter or model airplane
09/30/1999DE19913651A1 Gyroscope system for remote controlled gyroscope with proportional integral differential control for controlling movement of helicopter axis of yaw
09/30/1999DE19813959A1 Body sound suppression device for helicopter
09/30/1999DE19813219A1 Energy-absorbing control column for aircraft or helicopters
09/29/1999EP0945841A1 Low-noise level landing apparatus and system for helicopters
09/29/1999EP0944523A1 A composite tip cap assembly for a helicopter main rotor blade
09/29/1999EP0944522A2 Hovering aircraft
09/29/1999EP0837819B1 Operation of a helicopter
09/28/1999US5957662 helicopter blade aerofoil
09/23/1999WO1999047417A1 Rotor blade, in particular for helicopter antitorque tail rotor
09/22/1999EP0749385B1 An expandable spar filler block device
09/21/1999US5954480 Vibration isolator for rotorcraft
09/14/1999US5951608 Flight control system for jet powered tri-mode aircraft
09/14/1999US5951252 Helicopter flap lock assembly
09/14/1999US5951251 Device for locking the blades of a rotor, at least in terms of pitch
09/09/1999DE19808777A1 Annular free flight body used as carrier for observation and measurement systems
09/08/1999EP0939726A1 Thrust levitation
09/07/1999US5947453 Spring-mass vibration absorber
09/07/1999US5946981 Pitch link for rotary wing aircraft and automatic adjuster thereof
09/01/1999EP0939029A2 Rotor blade for helicopter
08/1999
08/26/1999WO1999042360A1 Optimum speed rotor
08/19/1999DE19804717A1 Flapping hingeless multi-bladed rotor for rotary wing aircraft
08/18/1999EP0936140A1 Rotor control system
08/18/1999EP0935557A1 Device and method for measuring and calibrating the control angles and control forces of a rotor blade
08/17/1999US5938404 Oscillating air jets on aerodynamic surfaces
08/10/1999US5934875 Removable helicopter mast
08/10/1999US5934608 Efficient bi-directional air flow deflector
08/10/1999US5934424 Centrifugal delayed resonator pendulum absorber
08/05/1999WO1999038770A2 Wire strike protection system with integrated antenna
08/05/1999WO1999038769A1 Unmanned rotor carried aerial vehicle
08/05/1999CA2329051A1 Unmanned rotor carried aerial vehicle
08/03/1999US5932831 Device for feeding ammunition into an airbornee weapon and aircraft equipped with such a device
08/03/1999US5931639 Helicopter blade assembly adapted to permit rapid forward flight
08/03/1999US5931411 Hovering aircraft
07/1999
07/28/1999EP0931227A1 Concentric face gear transmission assembly
07/28/1999CN1224393A Aerodyne with vertical take-off and landing
07/27/1999US5929431 Optical tracker system for determining the position of a rotating body
07/27/1999US5927948 Propeller
07/27/1999US5927644 Double failsafe engine mount
07/21/1999EP0700510B1 Leakage monitoring apparatus and method
07/14/1999EP0847362A4 Gyroplane
07/06/1999US5920173 Feedback enhanced adaptively tuned vibration absorber
07/01/1999WO1999032951A1 Compensation for rotorcraft pitch axis control saturation
07/01/1999WO1999032356A1 Active noise control system for a helicopter gearbox mount
07/01/1999CA2316244A1 Compensation for rotorcraft pitch axis control saturation
07/01/1999CA2316243A1 Active noise control system for a helicopter gearbox mount
06/1999
06/23/1999CN1220639A Monolithic structures having improved flaw tolerance
06/22/1999US5913659 Helicopter rotor
06/22/1999CA2061822C Active vibration control systems
06/16/1999CN2324062Y Improved rotorcraft
06/03/1999WO1999010877A3 Active noise control system for a defined volume
06/02/1999EP0757647A4 Main rotor system for helicopters
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