ClassID:

72139

B64C27/58 - CPC Classification

Classification description:

Rotorcraft; Rotors peculiar thereto; Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement Transmitting means

Sub-classes:
Recent Application in this class:
#1
20240271538
2024-08-15

Rotor and aircraft

#2
20230312120
2023-10-05

Rotorcraft autorotation control through electrical braking

#3
20230278704
2023-09-07

AIR VEHICLES INCLUDING FREEWINGS AND RELATED METHODS

#4
20230140370
2023-05-04

VTOL rotorcraft with annular contra-rotating rotary wings and auxiliary propulsor

#5
20220306289
2022-09-29

Aircraft

#6
20220289371
2022-09-15

Line replaceable centerbody assemblies for ducted propulsion

#7
20220289370
2022-09-15

Differential thrust vectoring system

#8
20210291976
2021-09-23

Method of controlling propellers of a hybrid helicopter, and a hybrid helicopter

#9
20210276702
2021-09-09

Electric drive system line replaceable unit with integrated thermal cooling

#10
20210245871
2021-08-12

Rotorcraft autopilot and methods

#11
20210221496
2021-07-22

Convertiplane and control method thereof

#12
20200385110
2020-12-10

Differential thrust vectoring system

#13
20200023952
2020-01-23

Propelling system with variable aerodynamic controls

#14
20190310025
2019-10-10

Cooling system for heat generating components in a fairing

#15
20190276144
2019-09-12

Redundant helicopter pitch change shaft system

#16
20190265729
2019-08-29

System and method for automatic rotorcraft tail strike protection

#17
20190263514
2019-08-29

Passive pitch angle adjustment apparatus

#18
20190250642
2019-08-15

Servo, control method, and unmanned aerial vehicle

#19
20190210721
2019-07-11

Vector Control for Aerial Vehicle Drive and Method

#20
20190157961
2019-05-23

Linear motor translator

#21
20190118941
2019-04-25

Unmanned aerial vehicle and propulsion system for an unmanned aerial vehicle

#22
20190032741
2019-01-31

Elastomeric bearing component with wedge-shaped shims

#23
20180346110
2018-12-06

Rotorcraft autopilot system, components and methods

#24
20180251214
2018-09-06

Collective control stick mounted throttle control assembly

#25
20180157275
2018-06-07

High authority stability and control augmentation system

#26
20180079497
2018-03-22

Propeller alignment devices

#27
20180050795
2018-02-22

Tip clearance harmonic estimation

#28
20180002008
2018-01-04

Thrust-generating rotor assembly

#29
20170253328
2017-09-07

Helicopter anti-torque rotor

#30
20170253327
2017-09-07

Adjustable blade-to-hub lead-lag damper attachment

#31
20170175531
2017-06-22

PROPELLER BLADE PROTRUSIONS FOR IMPROVED AERODYNAMIC PERFORMANCE AND SOUND CONTROL

#32
20170166304
2017-06-15

Propeller alignment devices

#33
20170008624
2017-01-12

Advanced emergency collective actuator with friction pull-off and method for a helicopter

#34
20160318605
2016-11-03

Rotor apparatus

#35
20160297519
2016-10-13

System for controlling a rotorcraft rotor, a rotorcraft fitted with such a system, and an associated control method

#36
20160052628
2016-02-25

Rotorcraft autopilot control

#37
20160023758
2016-01-28

Rotorcraft autopilot system, components and methods

#38
20150367937
2015-12-24

Independent speed and attitude control for a rotary wing aircraft

#39
20150336664
2015-11-26

Adjustable blade-to-hub lead-lag damper attachment

#40
20150292527
2015-10-15

Pressure-balance valve for balancing fluid feed to actuator cylinders of a servo-control for controlling rotor blades of a rotorcraft

#41
20140353433
2014-12-04

ROTORCRAFT FLIGHT CONTROL STICK TILTABLY MOUNTED ON A SUPPORT BY A FLEXIBLE ROD WITH A FIXED END

#42
20140299708
2014-10-09

Rocket or ballistic launch rotary wing vehicle

#43
20140027566
2014-01-30

Rotorcraft autopilot system, components and methods

#44
20140027565
2014-01-30

Rotorcraft advanced autopilot control arrangement and methods

#45
20130064674
2013-03-14

Rotor with blades including outer blade shell and inner structural member

#46
20120241563
2012-09-27

Emergency piloting by means of a series actuator for a manual flight control system in an aircraft

#47
20120168568
2012-07-05

Rotor unloading apparatus and method

#48
20120134741
2012-05-31

Rotary wing aircraft rod end and method of making a helicopter vehicle rod end with a precocked orientation

#49
20100308178
2010-12-09

Variable ratio crank for a manual flight control linkage of a rotary wing aircraft

#50
20100166568
2010-07-01

Composite-steel hybrid mast for rotorcraft

#51
20090283642
2009-11-19

Breakable coupling device, and an associated trim actuator

#52
20080247690
2008-10-09

Rotary wing aircraft rod end and method of making a helicopter vehicle rod end with a precocked orientation

#53
20080179463
2008-07-31

Device for compensating for the mechanical play of a helicopter flight control

#54
20080131280
2008-06-05

Bearingless rotor blade assembly for a high speed rotary-wing aircraft

#55
20070231140
2007-10-04

Rotary wing aircraft rod end and method of making a helicopter vehicle rod end with a precocked orientation

#56
20050147495
2005-07-07

Rotor as well as rotary-wing aircraft with a rotor

#57
15727735
2019-10-08

Pneumatically actuated trim tab system on a rotating blade