ClassID:

71961

B64C11/301 - CPC Classification

Classification description:

Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Blade pitch-changing mechanisms characterised by blade position indicating means

Recent Application in this class:
#1
20260085948
2026-03-26

DETECTION OF CHANGE IN THE RELATIVE POSITION OF BETA SENSORS TO BETA RING

#2
20250346347
2025-11-13

SYSTEM AND METHOD FOR MEASURING AN AXIAL POSITION OF A ROTATING COMPONENT

#3
20250100675
2025-03-27

TURBOPROP ERRONEOUS BLADE ANGLE READING ACCOMMODATION THROUGH MINIMUM TORQUE GOVERNING

#4
20250083798
2025-03-13

DEVICE FOR ASSISTING WITH REGULATION OF PROPELLERS OF AERONAUTICAL TURBOMACHINERY

#5
20250051032
2025-02-13

HEALTH MONITORING SYSTEM

#6
20250051003
2025-02-13

PROTECTION SYSTEM

#7
20240351679
2024-10-24

SYSTEM AND METHOD FOR MEASURING AN AXIAL POSITION OF A ROTATING COMPONENT

#8
20230339607
2023-10-26

Active blade-pitch change systems and methods

#9
20220340260
2022-10-27

System and method for detecting and mitigating a propeller failure condition

#10
20220276279
2022-09-01

Blade angle position feedback system with embedded markers

#11
20220243610
2022-08-04

System and method for detecting failure of a propeller control unit

#12
20220243600
2022-08-04

Propeller control unit validation

#13
20220194555
2022-06-23

System and method for detecting propeller malfunction

#14
20220177155
2022-06-09

APPARATUS AND METHODS FOR AIRCRAFT PROPELLER CONTROL

#15
20220089273
2022-03-24

Pitch control assembly for an aircraft-bladed rotor

#16
20210284322
2021-09-16

Propeller blade angle feedback arrangement and method

#17
20210276692
2021-09-09

Noise mitigation system for an unducted propulsive rotor of an aircraft

#18
20210206474
2021-07-08

Propeller blade pitch angle feedback from actuator rotation

#19
20210114716
2021-04-22

Phonic wheel and related system and method

#20
20210071589
2021-03-11

Pitch control assembly for an aircraft-bladed rotor

#21
20210071539
2021-03-11

Pitch control assembly for an aircraft-bladed rotor

#22
20210070434
2021-03-11

Feedback device with variable magnetic permeability

#23
20210070426
2021-03-11

Signal amplification in blade angle position feedback system

#24
20210070424
2021-03-11

Blade angle position feedback system with embedded markers

#25
20210061454
2021-03-04

Pitch control assembly for an aircraft-bladed rotor

#26
20210024199
2021-01-28

Aircraft propeller electric blade pitch change and control

#27
20210009278
2021-01-14

System and method for combined propeller speed and propeller pitch control for a turbopropeller engine

#28
20200339244
2020-10-29

Blade angle position feedback system with offset sensors

#29
20200331585
2020-10-22

Low latency pitch adjustable rotors

#30
20200324876
2020-10-15

Blade angle position feedback system with profiled marker terminations

#31
20200299003
2020-09-24

Blade angle position feedback system with extended markers

#32
20200172263
2020-06-04

Apparatus and methods for aircraft propeller control

#33
20200088112
2020-03-19

Model-based control system and method for a turboprop engine

#34
20200017234
2020-01-16

Propeller blade angle feedback arrangement and method

#35
20200017195
2020-01-16

Propeller blade angle feedback arrangement and method

#36
20200001979
2020-01-02

Method and apparatus for proximity control between rotating and non-rotating aircraft components

#37
20200001978
2020-01-02

Propeller blade synchrophasing using phonic wheel

#38
20200001977
2020-01-02

System and method for propeller feedback ring position detection

#39
20190367159
2019-12-05

Pitch control assembly

#40
20190234766
2019-08-01

MAGNETIC SENSOR WITH BIFILAR WINDINGS

#41
20190136867
2019-05-09

Control apparatus for a hydraulic variable-pitch propeller and propeller unit comprising a control apparatus of this kind

#42
20190118942
2019-04-25

Tilt Rotor Flap Whirl Stability with Hub Shear Feedback for High Speed Aircraft

#43
20180327081
2018-11-15

Systems and methods for noise mitigation for hybrid and electric aircraft

#44
20180306053
2018-10-25

Systems and methods for electronic measurement of propeller blade angle

#45
20180304991
2018-10-25

Feedback system for pitch-adjustable blades of aircraft bladed rotor

#46
20180155015
2018-06-07

Automatic, active blade tracking and balance system

#47
20180050816
2018-02-22

Apparatus and methods for aircraft propeller control

#48
20180050789
2018-02-22

System and method for electronic propeller blade angle position feedback with angled pairs of teeth

#49
20170267329
2017-09-21

Hydraulic actuation control in propellers

#50
20170225776
2017-08-10

Pitch control system for an aircraft

#51
20160244149
2016-08-25

Pitch control assembly

#52
20160160879
2016-06-09

Method for reducing the noise level of a turbomachine fan

#53
20160083077
2016-03-24

Single blade propeller with variable pitch

#54
20150210382
2015-07-30

Relative acceleration blade position measurement

#55
20150139798
2015-05-21

System and method for electronic propeller blade angle position feedback

#56
18140347
2024-09-03

Systems and methods for detecting erroneous propeller blade pitch measurements

#57
17245338
2022-01-18

Electric, inductively-energized controllable-pitch propeller hub