ClassID:

72144

B64C27/635 - 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 specially for controlling lag-lead movements of blades

Recent Application in this class:
#1
20240336366
2024-10-10

PROPULSION ASSEMBLY

#2
20220388672
2022-12-08

Propulsion assembly

#3
20190061931
2019-02-28

Vibration control with active lag damper

#4
20190061928
2019-02-28

Elastic flapping hinge for connecting a rotor blade to a rotor hub of a rotary wing aircraft

#5
20190047689
2019-02-14

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

#6
20190047688
2019-02-14

Resonant operating rotor assembly

#7
20190002085
2019-01-03

Articulated rotor systems with pitch independent damping

#8
20180229836
2018-08-16

Blade damper with a magnetic contaminants trap

#9
20180022448
2018-01-25

Active rotor damping system

#10
20180002006
2018-01-04

Rotor and an aircraft provided with such a rotor

#11
20170334555
2017-11-23

Monolithic blade, a rotorcraft rotor fitted with such a monolithic blade, and an associated rotorcraft

#12
20170320567
2017-11-09

Rotor assembly with high lock-number blades

#13
20170283051
2017-10-05

Method of manufacturing a control cuff for a rotor blade of a hinge and bearingless rotor

#14
20170267340
2017-09-21

Damage tolerant and fail-safe (DTFS) high strength preloaded pin assembly

#15
20170253327
2017-09-07

Adjustable blade-to-hub lead-lag damper attachment

#16
20170129598
2017-05-11

Rotor blade coupling device of a rotor head for a rotorcraft

#17
20170043868
2017-02-16

Damper device and an aircraft

#18
20160083088
2016-03-24

Vibration control with active lag damper

#19
20160017954
2016-01-21

Rotary dampers, systems, and related methods

#20
20150336664
2015-11-26

Adjustable blade-to-hub lead-lag damper attachment

#21
20140305755
2014-10-16

Elastomeric damper with heater

#22
20140017085
2014-01-16

Rotorcraft rotor fitted with lead-lag dampers housed in sleeves connecting blades to a hub of the rotor

#23
20130121827
2013-05-16

Dual mode rotor hub assembly

#24
20120282090
2012-11-08

Hydraulic cyclic blade speed control apparatus and method

#25
20120269630
2012-10-25

Rotor damper device, and an associated rotor and aircraft

#26
20100215496
2010-08-26

Helicopter rotor