B64C27/322 - CPC Classification Index

#1

20250091712

2025-03-20

PITCH DROP FRICTION BRAKE

#2

20240343388

2024-10-17

TILT ROTOR CONTROL

#3

20240186879

2024-06-06

Locking assembly for a propeller rotor of an aircraft, a rotor assembly for the aircraft, and a method

#4

20230174225

2023-06-08

MULTI-ROTOR AIRCRAFTS WITH PASSIVELY TILTABLE ROTOR GROUPS AND METHODS OF MAKING AND USING THE SAME

#5

20230118750

2023-04-20

Teeter flap lock

#6

20230067093

2023-03-02

Chord lock assembly for a tiltrotor aircraft

#7

20230027852

2023-01-26

System and method of rotor management

#8

20220194570

2022-06-23

Pitch angle blocking device

#9

20210393999

2021-12-23

ROTORCRAFT FALL RESTRAINT PROTECTION ATTACH POINTS AND MECHANISM SYSTEMS

#10

20210147072

2021-05-20

Passive hub flapping lock

#11

20210024204

2021-01-28

Rotor mount assembly

#12

20200207467

2020-07-02

Tilt rotor control

#13

20200122826

2020-04-23

Passive hub flapping lock

#14

20200001991

2020-01-02

Droop ring with removable wear elements

#15

20190300168

2019-10-03

Apparatus and method for removing main rotor blades from main rotor hub yoke

#16

20190047692

2019-02-14

Gimbal lock hook systems for rotorcraft

#17

20190047691

2019-02-14

Rolling gimbal lock systems for rotorcraft

#18

20190009896

2019-01-10

Mounting plates for rotor hub accessories

#19

20180155062

2018-06-07

Weights for water immersion testing

#20

20180126199

2018-05-10

Rotorcraft fall restraint protection attach points and mechanism systems

#21

20170297690

2017-10-19

Hub separation in dual rotor rotary wing aircraft

#22

20170291702

2017-10-12

Collective to elevator mixing of a rotary wing aircraft

#23

20170283049

2017-10-05

DIFFERENTIAL PRE-CONE ROTARY WING ARRANGEMENT AND AIRCRAFT

#24

20170283047

2017-10-05

Main rotor rotational speed control for rotorcraft

#25

20170275014

2017-09-28

Rotorcraft rotor and propeller speed

#26

20170274994

2017-09-28

Gearbox for a dual rotor, rotary wing aircraft

#27

20170274987

2017-09-28

Single collective stick for a rotary wing aircraft

#28

20170259916

2017-09-14

Soft in-plane and stiff out-of-plane rotor system

#29

20170233068

2017-08-17

Lift offset control of a rotary wing aircraft

#30

20170233067

2017-08-17

Independent control for upper and lower rotor of a rotary wing aircraft

#31

20170217582

2017-08-03

Dual rotor, rotary wing aircraft

#32

20170210465

2017-07-27

Bottom abutment device for a rotorcraft rotor, a rotorcraft rotor, and a rotorcraft

#33

20170210463

2017-07-27

Tip clearance measurement of a rotary wing aircraft

#34

20160280366

2016-09-29

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

#35

20150307188

2015-10-29

Rotor including a lead/lag abutment mechanism, and an aircraft

#36

20150239556

2015-08-27

Rotorcraft rotor including a flapping abutment mechanism, and a rotorcraft

#37

20150225077

2015-08-13

Helicopter rotor blade clamp

#38

20150217864

2015-08-06

Rotorcraft rotor having a flapping abutment mechanism, and a rotorcraft

#39

20140271182

2014-09-18

Soft in-plane and stiff out-of-plane rotor system

#40

20130175384

2013-07-11

Bearing restraint for rotor systems

#41

20130149149

2013-06-13

Rotocraft rotor including a flapping abutment mechanism for blades hinged on a hub of the rotor

#42

20110243734

2011-10-06

Lead stop for rotor system with fluid-elastomeric lead/lag damper

#43

20070196210

2007-08-23

Droop stop mechanism for helicopter rotor blade

#44

20070086894

2007-04-19

Elastomeric bearing elements for droop stop mechanisms

#45

20070065284

2007-03-22

Method and a device for blocking the pitch of a foldable blade of a rotorcraft rotor

#46

20070059175

2007-03-15

Rotocraft rotor with hinged blades and lockable retractable flapping abutments

#47

20060273220

2006-12-07

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

#48

20050236518

2005-10-27

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

#49

18531624

2024-06-11

Propeller locking mechanism

#50

15372125

2017-10-10

Lift fan position lock mechanism