ClassID:

71970

B64C11/346 - CPC Classification

Classification description:

Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on auxiliary masses or surfaces

Recent Application in this class:
#1
20260071634
2026-03-12

FAN ASSEMBLY FOR A GAS TURBINE ENGINE

#2
20240308646
2024-09-19

Passive rotor pitch control system

#3
20230085208
2023-03-16

Variable pitch fan assembly with remote counterweights

#4
20230021280
2023-01-19

Levered counterweight feathering system

#5
20220316348
2022-10-06

Variable pitch fan assembly with remote counterweights

#6
20180141638
2018-05-24

Propeller counterweight

#7
20170355447
2017-12-14

Thrust-Dependent Variable Blade Pitch Propeller

#8
20170174322
2017-06-22

Propeller blade pivot

#9
20160186584
2016-06-30

Turbomachine impellor rotor with device for feathering the blades of the impellor

#10
20160169031
2016-06-16

Device for controlling angular position of turbine blades of a propeller device

#11
20160121999
2016-05-05

Air propeller blade pivot in the shape of a spherical cap

#12
20160053620
2016-02-25

Actuator lock

#13
20150118052
2015-04-30

Pivoting blade counterweight

#14
20140341739
2014-11-20

Propeller blade pivot

#15
20140193253
2014-07-10

Propeller blade with relatively movable counterweight

#16
20130224021
2013-08-29

Device for shifting a propeller into reverse, comprising an actuator acting on a crank pin

#17
20120128487
2012-05-24

Remote shaft driven open rotor propulsion system with electrical power generation

#18
20120070292
2012-03-22

Movable actuator device for controlling the pitch of fan blades of a turboprop

#19
20060263220
2006-11-23

Ram air turbine blade rotation over-speed prevention mechanism

#20
18822859
2025-12-09

Fan assembly for a gas turbine engine