Patents-Review.com
ClassID:

146018 ⎘

F15B13/0438 - CPC Classification

Classification description:

Details of servomotor systems ; Valves for servomotor systems; Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being of the nozzle-flapper type

Recent Application in this class:
#1
20250137547
2025-05-01

SINGLE STAGE SERVO VALVE ASSEMBLY

 #2
20240209875
2024-06-27

TWO-STAGE SERVO VALVE

 #3
20230204052
2023-06-29

Piezoelectric ring bender servo valve assembly for aircraft flight control actuation and fuel control systems

 #4
20230145967
2023-05-11

Servovalve having a linear actuator and mechanical feedback

 #5
20210277920
2021-09-09

System that maintains the last commanded position of device controlled by a two-stage, four-way electrohydraulic servo valve upon power interruption

 #6
20210180722
2021-06-17

Servovalve

 #7
20210115950
2021-04-22

Servo valve assembly

 #8
20200391331
2020-12-17

Nozzle with changeable press fit

 #9
20200309164
2020-10-01

Servo valves

 #10
20200309163
2020-10-01

Spool servo valve

 #11
20200166153
2020-05-28

Servo valve

 #12
20200096018
2020-03-26

JET-FLAPPER SERVO VALVE

 #13
20200096010
2020-03-26

Electro-pneumatic converter, use of an electro-pneumatic converter, positioner, and control unit

 #14
20200063883
2020-02-27

Piezoelectric ring bender servo valve assembly for aircraft flight control actuation and fuel control systems

 #15
20200027636
2020-01-23

SOLENOID AND METHOD FOR MANUFACTURING SAME

 #16
20200025309
2020-01-23

Servovalve

 #17
20200025222
2020-01-23

Spool assembly for servovalve

 #18
20200025221
2020-01-23

Flapper and armature/flapper assembly for use in a servovalve

 #19
20200025220
2020-01-23

Servo valve

 #20
20200025219
2020-01-23

SERVO VALVE

 #21
20190390783
2019-12-26

Servo valve housing

 #22
20190389564
2019-12-26

Hydraulic stage

 #23
20190323526
2019-10-24

FLAPPER SERVO VALVE NOZZLE HOUSING

 #24
20190280580
2019-09-12

Servovalve with adjustable air gaps

 #25
20190277423
2019-09-12

Servovalve

 #26
20190277419
2019-09-12

Servovalve

 #27
20190237231
2019-08-01

Torque motor with double fix screws

 #28
20190226574
2019-07-25

VENT FOR PRESSURE EQUALIZATION

 #29
20190195381
2019-06-27

Servo valve

 #30
20190195245
2019-06-27

Servo valve

 #31
20190118315
2019-04-25

Nozzle assembly

 #32
20190093725
2019-03-28

Method for manufacturing a torsion spring for use in a servovalve and the torsion spring itself

 #33
20190085870
2019-03-21

ELECTRO-HYDRAULIC SERVO VALVE WITH COIL-TYPE FEEDBACK SPRING

 #34
20190048900
2019-02-14

Pneumatic servovalve assembly

 #35
20180372128
2018-12-27

Servovalve

 #36
20180363684
2018-12-20

NOZZLE ASSEMBLY

 #37
20180348801
2018-12-06

Proportional valve

 #38
20180347713
2018-12-06

Proportional valve

 #39
20180327082
2018-11-15

Hydraulic actuation system

 #40
20180326431
2018-11-15

Nozzle assembly

 #41
20180298923
2018-10-18

Fluid control device and method for operating a fluid control device

 #42
20180274616
2018-09-27

Torsion spring

 #43
20180245607
2018-08-30

Pressure regulation servo-valve with reduced leakage flow rate

 #44
20180216748
2018-08-02

Electric drive pivoting valve device

 #45
20180073526
2018-03-15

Nozzle with locking nut

 #46
20180051817
2018-02-22

Servo valve spool

 #47
20170364097
2017-12-21

Fluid metering valve

 #48
20170292627
2017-10-12

Electropneumatic magnet valve, flapper valve member for an electropneumatic magnet valve

 #49
20170261116
2017-09-14

Flapper and armature/flapper assembly for use in a servovalve

 #50
20170254432
2017-09-07

Electrohydraulic valve including a vibration-resistant, flexible hermetic seal

 #51
20170232563
2017-08-17

Nozzle with changeable press fit

 #52
20170076847
2017-03-16

Pendulum-type electromagnetic actuator

 #53
20160201812
2016-07-14

Two-position, two-stage servo valve

 #54
20160160886
2016-06-09

IMPROVEMENTS IN HYDRAULIC SERVOVALVES

 #55
20160153475
2016-06-02

Discrete pilot stage valve arrangement with fail freeze mode

 #56
20160102778
2016-04-14

Hydraulic actuator lockout

 #57
20150292525
2015-10-15

Servo valve

 #58
20150270748
2015-09-24

Servo valve torque motor

 #59
20150219238
2015-08-06

Valve controller with flapper nozzle pilot valve

 #60
20140216245
2014-08-07

High gain servo valve

 #61
20130284954
2013-10-31

HIGH TEMPERATURE SERVO VALVE ACTUATOR

 #62
20130048891
2013-02-28

SINGLE-STAGE NOZZLE FLAPPER TORQUE MOTOR AND ELECTROHYDRAULIC VALVE INCLUDING A FLEXIBLE HERMETIC SEAL

 #63
20120249019
2012-10-04

Valve positioner with current allocating device

 #64
20120216896
2012-08-30

SERVO VALVE

 #65
20090321667
2009-12-31

SERVO VALVE MODULES AND TORQUE MOTOR ASSEMBLIES

 #66
20090309051
2009-12-17

ELECTROPNEUMATIC VALVE

 #67
20090309050
2009-12-17

ELECTROPNEUMATIC VALVE

 #68
20090206289
2009-08-20

Torque balance servo including electromagnetic force bias mechanism

 #69
20090146088
2009-06-11

Method for operation of a position regulator

 #70
20070277670
2007-12-06

Maintaining the position of an electro-hydraulic servo valve controlled device upon loss of position command

 #71
20070235095
2007-10-11

Methods and apparatus for mechanically adjusting a null offset in a torque motor of a servovalve

 #72
20070215222
2007-09-20

Pilot valve

 #73
20070199314
2007-08-30

System for positioning a piston including a fail fixed valve for holding the piston in position during a power interruption and method of using same

 #74
20060090799
2006-05-04

Methods and apparatus for mechanically adjusting a null offset in a torque motor of a servovalve

 #75
20050263194
2005-12-01

Diverter valve with multiple valve seat rings

 #76
20050121090
2005-06-09

Thermally actuated microvalve device

 #77
17895673
2023-12-26

Filter assembly for a servovalve