Patents-Review.com
ClassID:

71975 ⎘

B64C11/42 - 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 non-automatic

Recent Application in this class:
#1
20240253771
2024-08-01

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

 #2
20240150010
2024-05-09

SYSTEMS AND METHODS FOR CONTROLLING PROPELLER CONTROL UNIT FLUID PRESSURE

 #3
20210206474
2021-07-08

Propeller blade pitch angle feedback from actuator rotation

 #4
20200283124
2020-09-10

Propeller speed overshoot preventing logic

 #5
20200255123
2020-08-13

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

 #6
20200017197
2020-01-16

System and method for feathering an aircraft propeller

 #7
20200017196
2020-01-16

System and method for feathering an aircraft propeller

 #8
20190389562
2019-12-26

Transfer bearing collapsing device

 #9
20190367159
2019-12-05

Pitch control assembly

 #10
20190092453
2019-03-28

Propeller control unit

 #11
20180072402
2018-03-15

Propeller blade angle control system

 #12
20170096220
2017-04-06

Central-positioned pitch control device for a coaxial helicopter

 #13
20160244149
2016-08-25

Pitch control assembly

 #14
20160153479
2016-06-02

Hydraulic adjusting device

 #15
20140193261
2014-07-10

Hydraulic system for controlling the orientation of fan blades

 #16
20130078096
2013-03-28

System for controlling pitch variation of the blades of a propeller, a propeller, and an aircraft

 #17
20120294717
2012-11-22

Propulsion engine

 #18
20120099991
2012-04-26

Hydraulic Variable Pitch Propeller

 #19
20100310368
2010-12-09

Electrical system for driving a propeller pitch change mechanism

 #20
20090180883
2009-07-16

Hydraulically controlled variable pitch propeller