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)
11/1998
11/11/1998EP0655110B1 Fluid-and-elastomer device
11/11/1998CN2296851Y Single rotor craft groove air passage antitorque device
11/05/1998WO1998049057A1 Anti-fretting formable liner
11/05/1998WO1998049056A1 A collective detent system for vertical takeoff flight operations
11/05/1998WO1998029303A3 Aircraft with a fuselage substantially designed as an aerostatic lifting body
11/05/1998DE19745330C1 Rotor blade coupling for helicopter
10/1998
10/29/1998DE19732515C1 Hydraulic adjuster for blade pitch of helicopter
10/29/1998DE19711846A1 Mechanical vibration damper, e.g. for helicopter engine vibration damping
10/28/1998EP0777601B1 Method and apparatus for balancing helicopter rotor blades
10/27/1998US5826822 System and method for providing cyclic and collective pitch control in a rotary wing aircraft
10/22/1998WO1998046419A1 Apparatus and methods for assembling a helicopter main rotor blade subassembly
10/22/1998WO1998046418A1 Apparatus and method for installing a leading-edge sheath onto a helicopter main rotor blade subassembly
10/22/1998DE19715827A1 Aircraft taking off and landing vertically
10/22/1998CA2286830A1 Apparatus and methods for assembling a helicopter main rotor blade subassembly
10/21/1998EP0871583A1 Slotted cam control system
10/21/1998EP0765446B1 Self-scavenging, hybrid lubrication subsystem
10/20/1998US5823468 Hybrid aircraft
10/15/1998WO1998045886A2 High-efficiency, large stroke electromechanical actuator
10/15/1998CA2281572A1 High-efficiency, large stroke electromechanical actuator
10/14/1998EP0870676A1 Individual blade control for rotorcraft with multiple swashplates
10/14/1998EP0869901A1 System for controlling and automatically stabilizing the rotational motion of a rotary wing aircraft
10/13/1998US5820344 Contoured flexure strap for helicopter rotor system
10/13/1998US5820341 Device with retractable double anti-cone stops ring, and rotor head including it
10/13/1998US5820073 Helicopter having a balanced torque transmission and no tail rotor
10/08/1998WO1998033071A3 Fuselage pitot-static tube
10/08/1998DE19711845A1 Helicopter vibration absorber
10/07/1998EP0869059A2 Rotorcraft with flapping-wing rotors
10/07/1998EP0869058A2 External airbag protection system for helicopters
10/07/1998CN1195327A Gyroplane
10/06/1998US5816533 Method and device for reducing the vibration generated on the structure of a helicopter
10/01/1998WO1998042569A1 Helicopter-airplane
09/1998
09/30/1998EP0867364A2 Compensation apparatus for main rotor torque
09/30/1998EP0867363A2 Rotor blade for rotary wing aircraft.
09/30/1998EP0866926A1 Method for fabricating a split path transmission providing equal torque splitting
09/30/1998EP0866765A1 Rotor system having alternating length rotor blades for reducing blade-vortex interaction (bvi) noise
09/29/1998US5815407 Method and device for inhibiting the operation of an electronic device during take-off and landing of an aircraft
09/29/1998US5813626 Suspension device for a transmission box of a rotary-wing aircraft
09/29/1998US5813625 Active blowing system for rotorcraft vortex interaction noise reduction
09/29/1998US5813292 Method for fabricating a split path transmission system providing equal torque splitting between the split load paths of each gear train thereof at a predefined operating point
09/24/1998DE19712034A1 Flexible leading edge profile for aerofoil
09/22/1998US5810562 Composite rotating swashplate for a helicopter rotor system
09/22/1998US5810285 Drive shaft casing for a ducted fan anti-torque device
09/17/1998WO1998030447A3 Rotor head for rotary wing aircraft
09/16/1998EP0864492A2 Helicopter Blade aerofoil
09/15/1998US5807202 Differential speed transmission
09/11/1998WO1998039206A1 Hub for rotor head of rotary wing aircraft and rotor head with such hub
09/09/1998EP0863073A2 Composite blade and forming method
09/09/1998EP0862533A2 Reconfigurable helicopter flight control system
09/09/1998EP0771283B1 An eop scribe device
09/08/1998US5802918 Concentric face gear transmission assembly
09/02/1998EP0861779A1 A rotor blade assembly for an unmanned aerial vehicle
09/02/1998EP0861778A1 A snubber assembly for an unmanned aerial vehicle
09/02/1998EP0861777A1 An integrated spline/cone seat subassembly
09/02/1998EP0861776A1 A drive train assembly for an unmanned aerial vehicle
09/02/1998EP0861775A1 A coaxial transmission/center hub subassembly for a rotor assembly
09/02/1998EP0769094B1 Erosion resistant surface protection
09/02/1998EP0759196B1 Turn coordination inhibit for rotary wing aircraft control system
09/01/1998US5799901 Rotor blade swashplate-axis rotation and gyroscopic moments compensator
08/1998
08/27/1998DE19706689A1 Cellular sandwich structure for helicopters
08/26/1998CN1191512A Operation of helicopter
08/25/1998US5797185 Method of making an isolated ring gear for planetary gear drive systems
08/18/1998CA2149673C Tubular elastomer damper
08/12/1998EP0857139A1 Aircraft
08/12/1998EP0785889B1 Snubber bearing mounting assembly for bearingless rotors
08/11/1998US5791601 Apparatus and method for aerodynamic blowing control using smart materials
08/11/1998US5791594 Helicopter conversion
08/11/1998US5791592 Helicopter with coaxial counter-rotating dual rotors and no tail rotor
08/06/1998WO1998025820A3 Tail boom for aircraft
08/04/1998US5788462 Hingeless rotor with intermediate pitch-control rings
08/04/1998US5788191 For use with a rotor blade defined by a tip chord
08/04/1998US5788182 Bidirectional antivibration suspension device for helicopter rotor
08/04/1998US5788181 Thermostatic metal actuator for nozzle actuation
07/1998
07/30/1998WO1998033071A2 Fuselage pitot-static tube
07/30/1998WO1998032656A1 Rotor with wings
07/29/1998EP0854821A2 Hybrid aircraft
07/29/1998CN2286721Y Air screw propeller or rotory wing
07/28/1998US5785497 Control rod mounting arrangement for helicopter swashplates
07/28/1998US5785282 Half-plow vortex generators for rotorcraft blades for reducing blade-vortex interaction noise
07/22/1998EP0763222B1 Inertial velocity command system
07/21/1998US5782606 Device for folding a rotorcraft rotor blade
07/21/1998US5782433 Engine deceleration device and power transmission device for helicopters
07/21/1998US5782430 Device for antivibratory suspension of a helicopter rotor
07/21/1998CA2195581A1 Gyro stabilized triple mode aircraft
07/16/1998WO1998030448A2 Rotor for rotary wing aircraft
07/16/1998WO1998030447A2 Rotor head for rotary wing aircraft
07/16/1998CA2277870A1 Rotor for rotary wing aircraft
07/09/1998WO1998029303A2 Aircraft with a fuselage substantially designed as an aerostatic lifting body
07/09/1998DE19700182A1 Luftfahrzeug mit einem im wesentlichen als aerostatischem Auftriebskörper ausgebildeten Rumpf Aircraft with a trained as aerostatic lift body essentially Hull
07/09/1998CA2276876A1 Aircraft with a fuselage substantially designed as an aerostatic liftin g body
07/08/1998CN2285751Y Combined traveling and flying device
07/07/1998US5775637 Device for reducing the vibrations on the structure of a helicopter
07/02/1998WO1998028188A1 Combined aircraft
07/02/1998WO1998028187A1 Drive shaft casing for a ducted fan anti-torque device
07/02/1998WO1998028186A1 A composite tip cap assembly for a helicopter main rotor blade
07/01/1998EP0736166B1 Helicopter integrated fire and flight control having a pre-launch and post-launch maneuver director
06/1998
06/25/1998WO1998026980A2 Hovering aircraft
06/24/1998CN1185399A Blade paddle with swept-back wing tip for plane rotor wing
06/23/1998US5770794 Monitoring apparatus for monitoring impending faults in the integrity of a component or structure
06/18/1998WO1998025820A2 Tail boom for aircraft
06/18/1998DE19716525C1 Device for dismantling helicopter rotor blades
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