Patents-Review.com
ClassID:

146016 ⎘

F15B13/0435 - 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 sliding valves

Recent Application in this class:
#1
20240353004
2024-10-24

Locking unit with pilot valve

 #2
20240271641
2024-08-15

SOLENOID PROPORTIONAL RELIEF VALVE

 #3
20240255008
2024-08-01

HYDRAULIC CONTROL SYSTEM AND METHOD WITH ELECTRO-PROPORTIONAL PRESSURE VALVE AND INTEGRAL CHECK

 #4
20240191813
2024-06-13

MULTIFUNCTIONAL ELECTRO-HYDRAULIC FLOW CONTROL VALVE AND FLOW CONTROL METHOD

 #5
20230400042
2023-12-14

Servo valve flapper and nozzle structure

 #6
20230220926
2023-07-13

Hydraulic multi-way valve with independent oil-port control, and control method therefor

 #7
20230175601
2023-06-08

Valve assembly with preloaded control oil return

 #8
20220196040
2022-06-23

Servo valve flapper and nozzle structure

 #9
20220144414
2022-05-12

Flight control system comprising a hydraulic servo actuator

 #10
20210285470
2021-09-16

Automatic air bleeding system for hydraulics

 #11
20210285466
2021-09-16

Redundant electrohydraulic positioning control system

 #12
20210262494
2021-08-26

Valve with anti-cavitation features

 #13
20210254638
2021-08-19

Hydraulic control system and method with electro-proportional pressure valve and integral check

 #14
20210254637
2021-08-19

Hydraulic valve arrangement

 #15
20210048111
2021-02-18

Fluid valve

 #16
20210010491
2021-01-14

Seismic vibrator servo valve with proportional linear pressure feedback

 #17
20200309284
2020-10-01

Spool servo valve

 #18
20200240444
2020-07-30

Valve arrangement and control method

 #19
20200166153
2020-05-28

Servo valve

 #20
20200166152
2020-05-28

Servo valve

 #21
20200003324
2020-01-02

Valve solenoid tube having a two chamber configuration

 #22
20190257328
2019-08-22

Electro-hydraulic control system with fail-safe pilot valves

 #23
20190211943
2019-07-11

Closed center pressure flow control valve

 #24
20190195381
2019-06-27

Servo valve

 #25
20190195245
2019-06-27

Servo valve

 #26
20190186511
2019-06-20

Leakage modulation in hydraulic systems containing a three-way spool valve

 #27
20190063469
2019-02-28

Direct input pilot operated servo valve

 #28
20190055967
2019-02-21

Electrohydraulic valve and method for producing the electrohydraulic valve

 #29
20190055859
2019-02-21

Electrohydraulic valve and method for producing the electrohydraulic valve

 #30
20190003497
2019-01-03

Hydraulic cylinder spool valve device

 #31
20180180069
2018-06-28

Closed loop and/or open loop control method for an electropneumatic field device

 #32
20180051814
2018-02-22

Servovalve

 #33
20170254431
2017-09-07

Closed center pressure flow control valve

 #34
20170248251
2017-08-31

Two-stage closed center electro-hydraulic valve

 #35
20170167083
2017-06-15

Vertical ride quality system for a rail vehicle

 #36
20170059057
2017-03-02

Electromagnetic proportional control valve system

 #37
20170036654
2017-02-09

Valve unit for modulating the pressure in a pneumatic brake system

 #38
20170002937
2017-01-05

Directional control valve

 #39
20160369666
2016-12-22

Actuator for axial displacement of an object

 #40
20160161013
2016-06-09

Hydraulic servovalves

 #41
20150115182
2015-04-30

Positioner

 #42
20140034135
2014-02-06

Hydraulic system with a dynamic seal

 #43
20140008555
2014-01-09

Proportional control valve

 #44
20130333773
2013-12-19

Two-stage variable force solenoid

 #45
20130255809
2013-10-03

Valve, in particular pilot-operated proportional pressure control valve

 #46
20120285568
2012-11-15

Valve device

 #47
20120234416
2012-09-20

Pilot regulator

 #48
20120000353
2012-01-05

Directional control valve, particularly for controlling an actuating cylinder of a turbo-machine

 #49
20110271669
2011-11-10

Hybrid construction machine

 #50
20100258192
2010-10-14

Method for actuating a hydraulic servo system

 #51
20100200090
2010-08-12

Spool valve

 #52
20080149181
2008-06-26

Rotary-actuated electro-hydraulic valve

 #53
20080072749
2008-03-27

Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve

 #54
20070181196
2007-08-09

Spool valve

 #55
20060130914
2006-06-22

Position feedback pilot valve actuator for a spool control valve

 #56
20060065867
2006-03-30

Electronically and hydraulically-actuated drain value

 #57
20050260064
2005-11-24

Speed governor and distributing valve for hydraulic turbines