ClassID:

72143

B64C27/625 - 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 rotating masses or servo rotors

Recent Application in this class:
#1
20240391585
2024-11-28

Aerial vehicle

#2
20240367786
2024-11-07

GANGED SERVO FLIGHT CONTROL SYSTEM FOR AN UNMANNED AERIAL VEHICLE

#3
20240208645
2024-06-27

Anti-Backlash Flight Control Actuator System

#4
20230271699
2023-08-31

Aerial vehicle

#5
20230249813
2023-08-10

Ganged servo flight control system for an unmanned aerial vehicle

#6
20230037680
2023-02-09

Aerial vehicle

#7
20220355921
2022-11-10

Cyclic pitch angle adjustment apparatus

#8
20220119102
2022-04-21

Aerial vehicle

#9
20210316851
2021-10-14

Scissoring propeller with centripetally actuated centering lever lock

#10
20200317330
2020-10-08

Rotor head for aerial vehicle

#11
20190276142
2019-09-12

Torque path coupling assemblies for tiltrotor aircraft

#12
20190185154
2019-06-20

INTERMESHING ROTARY-WING AIRCRAFT WITH SYMMETRICAL SWASH PLATE

#13
20190047689
2019-02-14

Spring system varying stiffness with applied force for use in a torque dependent rotor of a rotary wing aircraft

#14
20190047688
2019-02-14

Resonant operating rotor assembly

#15
20170306852
2017-10-26

Electrical and mechanical connections through firewall

#16
20170174341
2017-06-22

Failure tolerant rotor blade pitch angle controlling device

#17
20160311528
2016-10-27

Multi-rotor vehicle with yaw control and autorotation

#18
20160280366
2016-09-29

Flapping abutment mechanism for a lift assembly, a rotorcraft rotor including the abutment mechanism, and a rotorcraft

#19
20150050148
2015-02-19

Rotor blade control device

#20
20130168501
2013-07-04

Primary flight controls

#21
20120230824
2012-09-13

Rotor assembly

#22
20100178836
2010-07-15

Single rotor model helicopter with improved stability behavior

#23
20100130093
2010-05-27

Helicopter with main and auxiliary rotors

#24
20070164150
2007-07-19

Helicopter with horizontal control

#25
14975308
2019-08-06

Adjustable propeller blade with sound flaps