ClassID:

72142

B64C27/615 - 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 mechanical including flaps mounted on blades

Recent Application in this class:
#1
20250376258
2025-12-11

AIR VEHICLE

#2
20230303241
2023-09-28

Rotor blade using adaptive trailing edge assembly

#3
20230142439
2023-05-11

Rotor blade pitch trajectory control

#4
20220024570
2022-01-27

Flap drive device and blades of rotary-wing aircraft

#5
20210114722
2021-04-22

Linear actuator

#6
20200278082
2020-09-03

Lubricant level sensing for an actuator

#7
20200055593
2020-02-20

Rotorcraft flapping lock

#8
20190233094
2019-08-01

Control system for a stopped rotor aircraft

#9
20180244380
2018-08-30

Apparatus and method for roll moment equalization at high advance ratios for rotary wing aircraft

#10
20180162515
2018-06-14

Gurney flap

#11
20170341744
2017-11-30

Main rotor trim tab retention system, an aircraft employing same and a method of replacing a trim tab assembly from blade housing

#12
20170336024
2017-11-23

Lubricant level sensing for an actuator

#13
20170183089
2017-06-29

Rotor blade system

#14
20170129597
2017-05-11

REDUCED POWER INDIVIDUAL BLADE CONTROL SYSTEM ON A ROTORCRAFT

#15
20160236773
2016-08-18

DYNAMIC PITCH ADJUSTMENT DEVICES, SYSTEMS, AND METHODS

#16
20160083087
2016-03-24

Rotorcraft flapping lock

#17
20150298804
2015-10-22

Rotorcraft flapping lock

#18
20150104307
2015-04-16

Actuation system for an active blade element of a rotor blade

#19
20150086358
2015-03-26

Rotorcraft rotor including primary pitch horns and secondary horns

#20
20150037149
2015-02-05

Rotorcraft control system for rotorcraft with two or more rotor systems

#21
20150010401
2015-01-08

Flexbeam hinge for helicopter blade active trailing edge flap

#22
20140255184
2014-09-11

System and method for reducing rotor blade noise

#23
20140234104
2014-08-21

Rotor blade with control flap

#24
20140217235
2014-08-07

Actuator arrangement and control surface arrangement, especially for an aircraft

#25
20140083216
2014-03-27

Dry lubricated rotary actuator for in blade rotor control

#26
20140064965
2014-03-06

Actuation system for an active element in a rotor blade

#27
20140064962
2014-03-06

Electromechanical linear actuator for in blade rotor control

#28
20140064960
2014-03-06

Actuation system for an active element in a rotor blade

#29
20140060249
2014-03-06

Actuation system for an active element in a rotor blade

#30
20130336787
2013-12-19

Dry lubricated linear actuator for in blade rotor control

#31
20130294914
2013-11-07

Multi-element rotor blade

#32
20130272873
2013-10-17

Actuator for use in a rotor blade

#33
20130224017
2013-08-29

Mission adaptive rotor blade

#34
20130216399
2013-08-22

Elastomeric signal transmission and motion amplification

#35
20130119187
2013-05-16

Device for varying lade pitch of a lift rotor

#36
20130058793
2013-03-07

System for heat dissipation from an internal actuator in a rotor blade

#37
20120305698
2012-12-06

Method and apparatus for actively manipulating aerodynamic surfaces

#38
20120261519
2012-10-18

Active gurney flap

#39
20120261518
2012-10-18

Active gurney flap

#40
20120261508
2012-10-18

Active gurney flap

#41
20120207602
2012-08-16

Modular integrated device for rotor blade control

#42
20120168568
2012-07-05

Rotor unloading apparatus and method

#43
20120116612
2012-05-10

Implementation of Kalman filter linear state estimator for actuator equalization

#44
20110293427
2011-12-01

ROTOR BLADE CAMBER ADJUSTMENT

#45
20110164979
2011-07-07

Mechanical system for high acceleration environments

#46
20110164976
2011-07-07

Active rotor blade control effector system for a rotary-wing aircraft

#47
20110101170
2011-05-05

Shape memory alloy actuator

#48
20100258680
2010-10-14

Elongated, torsion-deformable aerodynamic element

#49
20100213320
2010-08-26

Device which is subject to fluid flow

#50
20100181415
2010-07-22

ROTOR BLADE FOR A ROTARY WING AIRCRAFT

#51
20100178167
2010-07-15

Method and device for controlling a rotary wing aircraft

#52
20100090062
2010-04-15

Drill-elastic and flexurally rigid rod element for the support and guidance of a movable flap relative to a wing of an aircraft

#53
20100047067
2010-02-25

System and methods for adaptive blade control surface adjustment

#54
20100044505
2010-02-25

HELICOPTER BLADE VORTEX INTERACTION NOISE REDUCING METHOD AND DEVICE

#55
20090321555
2009-12-31

Hybrid device for vibration control

#56
20090302168
2009-12-10

Compliant structure design of varying surface contours

#57
20090269198
2009-10-29

Rotor blade for a rotary wing aircraft

#58
20090212158
2009-08-27

Aircraft systems with shape memory alloy (SMA) actuators, and associated methods

#59
20090162199
2009-06-25

Self locking trim tab

#60
20080304967
2008-12-11

Actuation system, helicopter using the same, and controlling method therefor

#61
20080302914
2008-12-11

Connection element for power transmission between a flap actuator and a flap mounted on a wing of an aircraft so as to swivel

#62
20080237395
2008-10-02

Helicopter blade vortex interaction noise reducing method and device

#63
20080145221
2008-06-19

Hybrid actuator for helicopter rotor blade control flaps

#64
20080145220
2008-06-19

On-blade actuator for helicopter rotor blade control flaps

#65
20080138203
2008-06-12

Self-lubricated actuator for on-blade rotor control

#66
20080112808
2008-05-15

Rotor system with pitch flap coupling

#67
20080101931
2008-05-01

Brushless direct current (BLDC) motor based linear or rotary actuator for helicopter rotor control

#68
20080035798
2008-02-14

Fluid-driven artificial muscles as mechanisms for controlled actuation

#69
20080035788
2008-02-14

Cellular support structures used for controlled actuation of fluid contact surfaces

#70
20070131820
2007-06-14

Rotorcraft control system and method of using

#71
20070128026
2007-06-07

Rotorcraft blade provided with a tiltable flap

#72
20070098554
2007-05-03

Rotorcraft blade provided with a tiltable flap and a fastener tongue

#73
20070098553
2007-05-03

Rotorcraft blade provided with a flap that is tiltable with the help of at least one main ball joint having a first shaft that is secured to said flap

#74
20070063109
2007-03-22

Rotary flap

#75
20060273220
2006-12-07

Compact co-axial rotor system for a rotary wing aircraft and a control system therefor

#76
20060214065
2006-09-28

Deformable aerodynamic profile

#77
20060186269
2006-08-24

Adaptive compliant wing and rotor system

#78
20060049307
2006-03-09

Fluid dynamically effective surface for minimizing induced resistance

#79
20060049302
2006-03-09

Apparatus and methods for structurally-integrated conductive conduits for rotor blades

#80
20050236518
2005-10-27

Compact co-axial rotor system for a rotary wing aircraft and a control system thereof

#81
20050151030
2005-07-14

Lifting surface provided with at least one rotary flap

#82
20050123400
2005-06-09

Rotor blade pitch control assembly

#83
20050067527
2005-03-31

Rotorcraft having coaxial counter-rotating rotors which produce both vertical and horizontal thrust and method of controlled flight in all six degrees of freedom

#84
20050042091
2005-02-24

Active control of multi-element rotor blade airfoils

#85
20050008490
2005-01-13

Main rotor shaft mounted hydraulic pressure system

#86
20050001104
2005-01-06

Rotary flap

#87
14756420
2018-02-27

Apparatus and method for roll moment equalization at high advance ratios for rotary wing aircraft

#88
13999366
2015-12-08

Apparatus and method for roll moment equalization at high advance ratios for rotary wing aircraft

#89
13469790
2016-09-13

Apparatus to adjust airfoils of rotor blades

#90
13199677
2015-01-27

Anemometer drive apparatus and method