ClassID:

71964

B64C11/306 - CPC Classification

Classification description:

Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Blade pitch-changing mechanisms specially adapted for contrarotating propellers

Sub-classes:
Recent Application in this class:
#1
20260084804
2026-03-26

SYSTEMS AND METHODS FOR VERTICAL TAKEOFF AND LANDING VEHICLE WITH ULTRA-RELIABLE LOW LATENCY COMMUNICATIONS WIRELESS FLIGHT CONTROL

#2
20240254923
2024-08-01

TURBOMACHINE COMPRISING A SPEED REDUCTION GEAR INTEGRATING AN ELECTRIC MACHINE

#3
20240051688
2024-02-15

VERTICAL TAKEOFF AND LANDING HYBRID DRONE SUITABLE FOR FLYING IN WINDY CONDITIONS

#4
20210403169
2021-12-30

Turbomachine with unducted dual propellers

#5
20200247528
2020-08-06

System for changing the pitch of a turboprop engine comprising an upstream pair of contrarotating propellers

#6
20200172228
2020-06-04

Pitch-changing system equipped with means for lubricating a load-transfer bearing

#7
20190359316
2019-11-28

Actuator rod assembly for a blade pitch control system

#8
20190161168
2019-05-30

Redundant Aircraft Propulsion System Using Co-rotating Propellers Joined By Tip Connectors

#9
20190127058
2019-05-02

Swash plate system for helicopter rotor

#10
20190118941
2019-04-25

Unmanned aerial vehicle and propulsion system for an unmanned aerial vehicle

#11
20180209443
2018-07-26

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

#12
20180043989
2018-02-15

Pitch-change system equipped with means for adjusting blade pitch and corresponding turbine engine

#13
20170369153
2017-12-28

Turbomachine with multi-diameter propeller

#14
20170190433
2017-07-06

Assembly for turbine machine with open rotor contra-rotating propellers, comprising a small duct for the passage of ancillaries

#15
20170174323
2017-06-22

Redundant aircraft propulsion system using co-rotating propellers joined by tip connectors

#16
20170137114
2017-05-18

Aircraft control system and method

#17
20170096220
2017-04-06

Central-positioned pitch control device for a coaxial helicopter

#18
20170066525
2017-03-09

System and method for propeller pitch control

#19
20170066524
2017-03-09

System and method for controlling propeller pitch

#20
20170066523
2017-03-09

System and method for controlling propeller pitch

#21
20160368592
2016-12-22

PITCH CONTROL OF CONTRA-ROTATING AIRFOIL BLADES

#22
20160333709
2016-11-17

Radial control shaft for a device for controlling the pitch of fan blades of a turbine engine having an unducted fan, and a method of mounting such a shaft

#23
20160123162
2016-05-05

Propeller ring made of composite material for a turbomachine

#24
20150361818
2015-12-17

Unison ring assembly

#25
20150336679
2015-11-26

Propulsion unit with a pair of propellers for an aircraft

#26
20150321749
2015-11-12

Unison ring system for counter rotating propellers

#27
20150285262
2015-10-08

Device and method for controlling the pitch of blades

#28
20150217854
2015-08-06

Turbine engine having a pair of propellers for an aircraft

#29
20150147178
2015-05-28

Bearing with lubrication means and system for changing the pitch of the blades of a turboprop propeller of an aircraft equipped with said bearing

#30
20150139802
2015-05-21

Device for supplying oil under pressure to a linear actuator of a turbine engine

#31
20150104309
2015-04-16

Aircraft control system and method

#32
20140308124
2014-10-16

Optimization of downstream open fan propeller position and placement of acoustic sensors

#33
20140205457
2014-07-24

System for changing the pitch of the blades of a propeller

#34
20140186182
2014-07-03

Device for feeding fluid to a hydraulic actuator for controlling the pitch of the fan blades of a two-propeller turboprop

#35
20140112784
2014-04-24

Blade, particularly variable-pitch blade, propellor comprising such blades and corresponding turbomachine

#36
20130177421
2013-07-11

Electric power supply for apparatuses supported by the rotor of an aircraft engine

#37
20130094966
2013-04-18

Axial displacement and rotational speed monitoring

#38
20130052016
2013-02-28

Pitch control of contra-rotating airfoil blades

#39
20130039764
2013-02-14

Modular counter rotating propeller system

#40
20130039759
2013-02-14

De-icing system for modular counter rotating propeller

#41
20130017087
2013-01-17

Device for controlling the pitch of turboprop fan blades

#42
20130011259
2013-01-10

Mechanism for variable adjustment of blades for a system of contra-rotating propellers, and a system of contra-rotating propellers comprising at least one such mechanism

#43
20130000313
2013-01-03

Hydraulic fluid transfer coupling

#44
20120321470
2012-12-20

Mounting system

#45
20120294718
2012-11-22

Variable pitch propeller rotor

#46
20120294717
2012-11-22

Propulsion engine

#47
20120099989
2012-04-26

Propeller hub

#48
20120093652
2012-04-19

Unducted propeller with variable pitch blades for a turbomachine

#49
20120070292
2012-03-22

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

#50
20110305575
2011-12-15

Device with counter-rotating propellers having a propeller pitch altering means

#51
20110305572
2011-12-15

Mechanical arrangement

#52
20110286842
2011-11-24

Counter-rotating open-rotor (CROR)

#53
20110286841
2011-11-24

Counter-rotating open-rotor (CROR)

#54
20110229319
2011-09-22

Controlling blade pitch angle

#55
20110052392
2011-03-03

Method of flight in an expanded speed range using thrust vectoring propellers

#56
20110014051
2011-01-20

Rotary coupling

#57
20100310369
2010-12-09

Pitch change actuation system for a counter-rotating propeller

#58
20100068056
2010-03-18

Blade pitch control

#59
20100066098
2010-03-18

Controlling propeller rotor overspeed

#60
20100003139
2010-01-07

PROPULSOR DEVICES HAVING VARIABLE PITCH FAN BLADES WITH SPHERICAL SUPPORT AND DAMPING SURFACES

#61
20090026310
2009-01-29

Variable pitch anti torque coaxial counter rotation bi-prop rotor

#62
20080179455
2008-07-31

Turboprop with a variable-pitch propeller