Patents-Review.com
ClassID:

71973 ⎘

B64C11/385 - CPC Classification

Classification description:

Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Blade pitch-changing mechanisms fluid, e.g. hydraulic comprising feathering, braking or stopping systems

Recent Application in this class:
#1
20260078681
2026-03-19

HUB ASSEMBLY HAVING A PTICH LOCK SYSTEM

 #2
20250382888
2025-12-18

PITCH-CHANGE MECHANISM WITH PITCH-LOCKING DEVICE COMPRISING A SATELLITE ROLLER SCREW

 #3
20250289562
2025-09-18

PROPELLER ASSEMBLY

 #4
20250243819
2025-07-31

Hybrid Electric Propulsion System with Start Sequence and Shutdown Sequence

 #5
20240391583
2024-11-28

PROPELLER CONTROL SYSTEM FOR AN AIRCRAFT

 #6
20240318565
2024-09-26

VARIABLE PITCH FAN

 #7
20240271577
2024-08-15

Hybrid electric propulsion system with start sequence and shutdown sequence

 #8
20240253771
2024-08-01

ELECTROHYDRAULIC PITCH-CONTROL SYSTEM WITH A VALVE PUMP IN A ROTATING REFERENCE FRAME

 #9
20240240566
2024-07-18

PITCH LOCK SYSTEM

 #10
20240217649
2024-07-04

CONTROLLING RATE OF ROTOR FEATHER BY SYSTEM SECONDARY TO PRIMARY BLADE ANGLE CONTROL SYSTEM

 #11
20240125279
2024-04-18

PROPELLER ASSEMBLY AND PITCH CONTROL UNIT

 #12
20240124125
2024-04-18

BACK-UP PROTECTION FOR UNCONTROLLED FLUID PRESSURE INCREASE IN PROPELLER CONTROL UNITS

 #13
20230174220
2023-06-08

PROPELLER ASSEMBLY HAVING A PUMP UNIT

 #14
20230106850
2023-04-06

Propeller assembly and pitch control unit

 #15
20220340260
2022-10-27

System and method for detecting and mitigating a propeller failure condition

 #16
20220289362
2022-09-15

Turbomachine module equipped with a system for changing the pitch of the blades of a propeller and with a device for feathering the blades

 #17
20220266982
2022-08-25

BLADE PITCH CONTROL

 #18
20220243610
2022-08-04

System and method for detecting failure of a propeller control unit

 #19
20220243609
2022-08-04

Automated propeller feather testing

 #20
20220243608
2022-08-04

System and method for detecting failure of a propeller feedback device

 #21
20220243606
2022-08-04

Propeller control unit

 #22
20210206474
2021-07-08

Propeller blade pitch angle feedback from actuator rotation

 #23
20210164403
2021-06-03

Propeller control unit with bypass drain line

 #24
20210107624
2021-04-15

Spring-loaded link

 #25
20210079855
2021-03-18

Propeller assembly and pitch control unit

 #26
20210070425
2021-03-11

Dual actuator hydraulic pitch-lock propeller system

 #27
20210009252
2021-01-14

System and method for propeller response enhancement during transition from ground to flight configuration for a turbopropeller engine

 #28
20200369370
2020-11-26

Method of controlling a propeller with two-position solenoid

 #29
20200369369
2020-11-26

Fan module with variable-pitch blades for a turbomachine

 #30
20200262542
2020-08-20

System and method for aircraft propeller governing

 #31
20200255123
2020-08-13

Aircraft turboprop engine propeller pitch control system including a controllable feather valve

 #32
20200198765
2020-06-25

Propeller oil control system for aircraft turboprop engines

 #33
20200189721
2020-06-18

Propeller blade angle closed loop control by solenoid modulation

 #34
20200049027
2020-02-13

Automated propeller feather testing

 #35
20200039635
2020-02-06

Variable pitch propeller control system

 #36
20200017197
2020-01-16

System and method for feathering an aircraft propeller

 #37
20200017196
2020-01-16

System and method for feathering an aircraft propeller

 #38
20190389562
2019-12-26

Transfer bearing collapsing device

 #39
20190367159
2019-12-05

Pitch control assembly

 #40
20190092453
2019-03-28

Propeller control unit

 #41
20190061916
2019-02-28

Dual valve systems for actuator control

 #42
20190031319
2019-01-31

Propeller control system for an aircraft

 #43
20190024672
2019-01-24

Fan module with variable-pitch blades for a turbine engine

 #44
20190016442
2019-01-17

Hydraulic actuator

 #45
20190009887
2019-01-10

System for controlling the pitch of fan blades of a turbine engine, the system having a feathering-locking peg

 #46
20190009886
2019-01-10

Device for locking the pitch and for feathering adjustable-pitch fan blades of a turbine engine propeller

 #47
20190003484
2019-01-03

Fan module having variable-pitch blades for a turbine engine

 #48
20180334915
2018-11-22

Turbomachine module comprising a rotor supporting pitchable blades

 #49
20180334242
2018-11-22

System and method for aircraft propeller control

 #50
20180209443
2018-07-26

Aircraft comprising a turbine engine incorporated into the rear fuselage comprising a system for blocking the fans

 #51
20180141639
2018-05-24

PROPELLER TRANSFER TUBE

 #52
20180141638
2018-05-24

Propeller counterweight

 #53
20180072402
2018-03-15

Propeller blade angle control system

 #54
20180057146
2018-03-01

Propeller pitch control actuation system

 #55
20170361919
2017-12-21

Propeller blade angle control system

 #56
20170218974
2017-08-03

Actuation system for varying blade pitch

 #57
20160333730
2016-11-17

Automated propeller feather testing

 #58
20160244149
2016-08-25

Pitch control assembly

 #59
20160153479
2016-06-02

Hydraulic adjusting device

 #60
20150284069
2015-10-08

Device for controlling blade angle, and propeller

 #61
20140294585
2014-10-02

Turbo engine with propeller(s) for an aircraft with a system for changing the pitch of the propeller

 #62
20140193253
2014-07-10

Propeller blade with relatively movable counterweight

 #63
20140023505
2014-01-23

Device for the blind coupling of fluidic, electrical or similar supplies, to a receiving control mechanism

 #64
20130323050
2013-12-05

Electrohydraulic propeller governor

 #65
20130101419
2013-04-25

Turbomachine blade incidence control system and turbomachine

 #66
20120237379
2012-09-20

Rotary hydraulic actuator with hydraulically controlled position limits

 #67
20120070291
2012-03-22

Propeller and system of counter-rotating propellers comprising improved means for limiting pitch, and a turbine engine comprising them

 #68
20110274546
2011-11-10

Back-up featherer

 #69
20110274544
2011-11-10

Pitch control mechanism

 #70
20110236212
2011-09-29

Feathering device for the fan blades of a turboprop engine

 #71
20110164978
2011-07-07

Back-up featherer

 #72
20100135799
2010-06-03

Blade pitch control system

 #73
20100129214
2010-05-27

Machine such as a gas turbine engine

 #74
20070212221
2007-09-13

Propeller pitch lock system

 #75
20070212220
2007-09-13

Controlled propeller pitch lock actuation system

 #76
18091617
2024-04-16

Controlling rate of rotor feather by primary blade angle control system