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)
12/1996
12/31/1996US5588618 Counter-torque device with rotor and flow-straightening stator, both of which are ducted, and phase modulation of the blades of the rotor, for helicopter
12/27/1996EP0749385A1 An expandable spar filler block device
12/24/1996CA2083781C Reduced vulnerability device for cycle plates rotor control of an helicopter
12/17/1996US5584661 Forward sweep, low noise rotor blade
12/12/1996WO1996039327A1 A hybrid composite flexbeam for a helicopter bearingless main rotor assembly
12/12/1996DE19622130A1 Hubschrauber-Rotor Helicopter rotor
12/12/1996CA2223684A1 A hybrid composite flexbeam for a helicopter bearingless main rotor assembly
12/05/1996WO1996038418A1 Heterocyclo substituted hydroxamic acid derivatives as cyclooxygenase-2 and 5-lipoxygenase inhibitors
12/05/1996CA2223154A1 Heterocyclo substituted hydroxamic acid derivatives as cyclooxygenase-2 and 5-lipoxygenase inhibitors
11/1996
11/27/1996CN1136522A High safety rotary wing aviation craft
11/20/1996EP0742771A1 An optical tracker system
11/19/1996US5575438 Unmanned VTOL ground surveillance vehicle
11/14/1996WO1996035594A1 Aviation crash sensor
11/14/1996DE19541193C1 Monitoring device for rotor brake on helicopter
11/13/1996EP0742144A1 Device for damping lead-lag motion of rotor blades of a helicopter
11/12/1996US5572910 Application of face gears to helicopter transmissions
11/12/1996CA2035407C Hover position hold system for rotary winged aircraft
11/06/1996EP0740807A1 Helicopter autopilot providing airspeed control
11/06/1996EP0740746A1 Vibration isolation system
11/06/1996EP0636085B1 Helicopter active noise control system
11/05/1996US5570631 Apparatus for fabricating a helicopter main rotor blade
10/1996
10/30/1996EP0739815A1 Helicopter transmission including a traction roller CVT
10/30/1996EP0739814A1 Vibration damping device for helicopter rotor
10/29/1996US5568847 Device for providing a rigid mechanical link with frequency cut-off
10/22/1996US5566907 Counter-torque device with ducted rotor and phase modulation of the blades, for helicopter
10/17/1996WO1994013530A3 Rotor blade balance weight assembly
10/16/1996CN2237597Y Amphibious helicopter
10/09/1996EP0736166A1 Helicopter integrated fire and flight control having a pre-launch and post-launch maneuver director
10/08/1996US5562416 Helicopter rotor blade mounting assembly
10/08/1996US5562415 Pitch-control devices for hingeless rotors
10/08/1996US5562414 Noise reduction device for rotorcraft
10/08/1996US5562264 Fuselage structure for helicopter
10/02/1996EP0734947A1 Helicopter rotor equipped with flaps
10/02/1996EP0734343A1 Spacer for a helicopter main rotor shaft
10/01/1996US5560570 Automatic piloting device for aerodynes
10/01/1996CA2131810C Helicopter noise reduction through gearing modifications
09/1996
09/26/1996WO1996029243A1 Hub for rotary wing aircraft
09/25/1996EP0629269B1 Helicopter noise reduction through gearing modifications
09/19/1996DE19505333A1 Blade pitch control for main rotor of helicopter
09/18/1996EP0641425B1 Helicopter integrated fire and flight control having azimuth and pitch control
09/18/1996EP0633989B1 Frequency cutting rigid mechanical linkage device
09/11/1996EP0668828B1 A pitch actuation system restraint device for a helicopter blade folding system
09/11/1996CN2234915Y Rotor for aircraft
09/10/1996US5553817 Turn coordination inhibit for rotary wing aircraft control system
09/10/1996US5553812 Aircraft flight control system
09/04/1996EP0729883A1 Higher harmonic control apparatus for a helicopter
09/04/1996EP0729424A1 Apparatus and method for adjusting rotor blade tracking
09/04/1996CN1130369A Wire cutting system having aerodynamic, microwave energy absorbing fairing
08/1996
08/28/1996EP0670796B1 Rotor blade balance weight assembly
08/28/1996EP0643849B1 Helicopter turn coordination and heading hold mode control
08/28/1996EP0613443B1 Method for folding helicopter main rotor blades
08/22/1996WO1996025328A1 Combined cycle compressed air tip jet driven helicopter
08/21/1996EP0727350A1 Rotorcraft with gyroscopic rotor stabilisation
08/13/1996US5544844 Autogyro aircraft
08/08/1996WO1996015029A3 Pitch adjustment assembly for bearingless main rotors
08/06/1996US5542820 Engineered ceramic components for the leading edge of a helicopter rotor blade
08/06/1996US5542818 Ducted Anti-torque rotor with floating blades
08/01/1996CA2141481A1 Aircraft with "s"-rotor/"c" blades folding to the "o"-wing
07/1996
07/30/1996US5540549 Fluid damping devices
07/17/1996EP0665795B1 Rotary wing comprising two coaxial rotors
07/17/1996EP0655110A4 Fluid-and-elastomer device.
07/10/1996CN1126160A Counter-torque device with ducted tail rotor and ducted flow-straightening stator, for helicopters
07/10/1996CN1126159A Counter-torque device with rotor and flow-straight ening stator, both of which are ducted, and inclined flow-straightening vanes
07/10/1996CN1126158A Ducted anti-torque rotor with floating blades
07/10/1996CN1126157A Counter-torque device with rotor and flow-straight ening stator, both of which are ducted, and phase modulation of the blades of the rotor, for helicop
07/09/1996US5534354 Multiple density sandwich structures
07/04/1996WO1996020108A1 Engineered ceramic components for the leading edge of a helicopter rotor blade
07/04/1996WO1996020107A1 Anti-vibration suspension device for a helicopter rotor
07/03/1996CN1125677A Auto-stabilization type flying top
07/02/1996US5533165 Smart structure egress channel
06/1996
06/27/1996WO1996019380A1 Tail rotor authority control for a helicopter
06/27/1996DE4445409A1 DC electric motor with ring disc rotor
06/27/1996DE19528155C1 Helicopter rotor blade of glass fibre reinforced synthetic resin
06/26/1996EP0718188A1 Hingeless rotor with intermediate rings for pitch control
06/26/1996EP0718187A1 Bidirectional vibration absorbing suspension device for a helicopter rotor
06/26/1996EP0717697A1 Wire cutter system having aerodynamic, microwave energy absorbing fairing
06/25/1996US5529459 Helicopter rotor brake device
06/25/1996US5528960 Power transmission apparatus
06/25/1996US5528828 Methods for fabricating a helicopter main rotor blade
06/20/1996DE4444256A1 Helicopter rotor blade structure
06/18/1996US5527155 Injection molded fan blade
06/13/1996DE4443508A1 Pilot or sensor actuated helicopter crash cushion
06/12/1996EP0597913B1 Shroud geometry for unmanned aerial vehicles
06/04/1996US5523530 Elastomeric acoustic insulator
05/1996
05/29/1996EP0700510A4 Monitoring apparatus
05/28/1996US5520532 Molding assembly for forming airfoil structures
05/23/1996WO1996015029A2 Pitch adjustment assembly for bearingless main rotors
05/23/1996CA2204901A1 Pitch adjustment assembly for bearingless main rotors
04/1996
04/30/1996US5511947 Aircraft cyclic pitch control
04/30/1996US5511944 Pitch link for rotary wing aircraft and automatic adjuster thereof
04/25/1996WO1996011842A1 Snubber bearing mounting assembly for bearingless rotors
04/25/1996DE4437102A1 Model helicopter with rotor and production tool
04/25/1996CA2203012A1 Snubber bearing mounting assembly for bearingless rotors
04/24/1996CN1121020A Counter-torque device with ducted rotor and phase modulation of the baldes, for helicopter
04/23/1996US5510991 Configurable automatic piloting device for aerodynes
04/23/1996US5509622 Protective cover, radiation shield and test unit for helicopter blade crack indicator
04/17/1996EP0706938A1 Device to control the pitch of the blades of an helicopter rotor
04/17/1996EP0706937A1 Device to control the pitch of the blades of an helicopter rotor
04/17/1996EP0706936A1 Improvements to pitch control devices for hingeless rotors
04/17/1996EP0706935A1 Flapping restrainer device with upper retractable flap stop ring and rotor head equipped with such a device
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