ClassID:

249401

Y10T137/86614 - CPC Classification

Classification description:

Fluid handling; Systems; Multi-way valve unit; Supply and exhaust; Pilot-actuated Electric

Recent Application in this class:
#1
20230204052
2023-06-29

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

#2
20210222789
2021-07-22

Stepper motor driven proportional rotary actuator

#3
20200271238
2020-08-27

Pressure compensated solenoid valve with fluid flow force balancing

#4
20200182371
2020-06-11

Proportional valve for fluid flow control and generation of load-sense signal

#5
20200143970
2020-05-07

Electromagnetic actuator and hydraulic pressure adjustment mechanism

#6
20200063883
2020-02-27

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

#7
20200041013
2020-02-06

Three-way hydraulic valve with a floating bushing

#8
20190368626
2019-12-05

Valve and electric actuator housing

#9
20190134361
2019-05-09

Fluid delivery device with positionable tube

#10
20180372128
2018-12-27

Servovalve

#11
20180348801
2018-12-06

Proportional valve

#12
20180340555
2018-11-29

Servovalve

#13
20180245700
2018-08-30

Pressure reducing valve unit

#14
20180128393
2018-05-10

Servovalve

#15
20180128385
2018-05-10

Electromagnetic valve

#16
20180100520
2018-04-12

Hydraulic suspension for vehicle and multi-functional proportional control valve for the same

#17
20180038503
2018-02-08

Stepper motor driven proportional rotary actuator

#18
20180037447
2018-02-08

Switching valve, switching hydraulic system and crane

#19
20170184208
2017-06-29

Apparatus to bias spool valves using supply pressure

#20
20170167627
2017-06-15

Low power solenoid actuated valve

#21
20170130857
2017-05-11

Electrohydraulic valve having dual-action right-angle pilot actuator

#22
20170059057
2017-03-02

Electromagnetic proportional control valve system

#23
20160327168
2016-11-10

Flow passage switching unit

#24
20160298784
2016-10-13

Solenoid-actuated fluid control valve assembly

#25
20160201812
2016-07-14

Two-position, two-stage servo valve

#26
20160076642
2016-03-17

Regulator valve with integrated direct acting solenoid

#27
20150337980
2015-11-26

Fluid pressure control device

#28
20150337872
2015-11-26

Hydraulic valve with electropneumatic actuator

#29
20150276083
2015-10-01

Flapper assemblies for torque motors of electrohydraulic valves

#30
20150267826
2015-09-24

Pressure reducing valve

#31
20150226344
2015-08-13

Solenoid-operated pilot type spool valve

#32
20150219238
2015-08-06

Valve controller with flapper nozzle pilot valve

#33
20150211552
2015-07-30

Electronic controller with integral vent valve

#34
20150198182
2015-07-16

Electrohydraulic control valve

#35
20150184741
2015-07-02

Regulator valve with integrated direct acting solenoid

#36
20150129070
2015-05-14

Apparatus to bias spool valves using supply pressure

#37
20150123460
2015-05-07

Valve assembly

#38
20150096636
2015-04-09

Engine valvetrain oil control valve

#39
20150087209
2015-03-26

Dual control dead man system

#40
20150059898
2015-03-05

Double solenoid valve with detent mechanism

#41
20150047731
2015-02-19

Externally fitted control device and hydraulic control module for an externally fitted control device

#42
20150020905
2015-01-22

Valve assembly having dual functionality for directional control of a piston on a fluid actuated device

#43
20140311333
2014-10-23

Central valve for pivot motor actuator

#44
20140299197
2014-10-09

Method of controlling proportional motion control valve

#45
20140264106
2014-09-18

Flow rate control device

#46
20140251470
2014-09-11

Multi-functional proportional control valve for hydraulic suspension system for vehicle

#47
20140250877
2014-09-11

Hydraulic suspension for vehicle and multi-functional proportional control valve for the same

#48
20140084193
2014-03-27

Dual control dead man system

#49
20140007964
2014-01-09

Proportional pressure-regulating valve

#50
20130333782
2013-12-19

Compressed-air supply device for commercial vehicles

#51
20130255809
2013-10-03

Valve, in particular pilot-operated proportional pressure control valve

#52
20130207009
2013-08-15

Two part valve

#53
20130134337
2013-05-30

Solenoid valve

#54
20130056657
2013-03-07

Latch valve for actuating a transmission control element

#55
20130056103
2013-03-07

Valve array

#56
20130048117
2013-02-28

Meterless hydraulic system having displacement control valve

#57
20130048093
2013-02-28

Control device for an extracting unit in the work face of a mine

#58
20130026401
2013-01-31

Regulator valve with integrated direct acting solenoid

#59
20130019958
2013-01-24

Energy-saving valve

#60
20120317980
2012-12-20

Universal heat engine

#61
20120291900
2012-11-22

Solenoid valve and oil pressure control device

#62
20120285568
2012-11-15

Valve device

#63
20120261598
2012-10-18

DIRECTLY PILOTED VALVE ASSEMBLY

#64
20120255617
2012-10-11

Pilot-operated three-position switching valve

#65
20120241022
2012-09-27

Relief valve device

#66
20120216896
2012-08-30

SERVO VALVE

#67
20120199771
2012-08-09

Solenoid valve

#68
20120186441
2012-07-26

Torque control for open circuit piston pump

#69
20120103441
2012-05-03

Pressure control valve

#70
20120068095
2012-03-22

Torque motor linearization

#71
20120061600
2012-03-15

Pressure balanced valve with diaphragm valve member end seal

#72
20120056117
2012-03-08

Solenoid valve

#73
20120018003
2012-01-26

Latching valve

#74
20120017997
2012-01-26

Latching valve

#75
20110297856
2011-12-08

Proportional pressure control valve

#76
20110297494
2011-12-08

Valve assembly

#77
20110277843
2011-11-17

Soft start device for pneumatic systems and method for the operation of a soft start device

#78
20110248195
2011-10-13

Control valve assembly for load carrying vehicles

#79
20110232791
2011-09-29

Proportional valve employing simultaneous and hybrid actuation

#80
20110192481
2011-08-11

Modular control device, especially of an electro-fluidic type

#81
20110175003
2011-07-21

Combined control valve and coupler

#82
20110146804
2011-06-23

Fluid operated actuator system

#83
20110139260
2011-06-16

Proportional motion control valve

#84
20110132473
2011-06-09

Hydraulic control valve assembly with monolithic body and single spool port lock

#85
20110094595
2011-04-28

Method of operating a control valve assembly for a hydraulic system

#86
20110088789
2011-04-21

Hydraulic control valve

#87
20110083763
2011-04-14

PRESSURE CONTROL VALVE

#88
20100326552
2010-12-30

Solenoid valve

#89
20100313981
2010-12-16

Proportional position feedback hydraulic servo system

#90
20100313980
2010-12-16

Solenoid valve apparatus

#91
20100300552
2010-12-02

Hydraulic valve device

#92
20100288950
2010-11-18

Electrohydraulic control module

#93
20100258210
2010-10-14

Spool-type selector valve

#94
20100258192
2010-10-14

Method for actuating a hydraulic servo system

#95
20100252281
2010-10-07

Downhole flow control tool and method

#96
20100252132
2010-10-07

Piloted poppet valve

#97
20100243933
2010-09-30

Solenoid valve device

#98
20100243068
2010-09-30

Servo pressure control valve

#99
20100224059
2010-09-09

Electrohydraulic booster

#100
20100218836
2010-09-02

Directly piloted valve assembly

#101
20100200090
2010-08-12

Spool valve

#102
20100163128
2010-07-01

HYDRAULIC DIRECTIONAL VALVE

#103
20100155632
2010-06-24

Valve controller

#104
20100148101
2010-06-17

Parallel type valve assembly

#105
20100139795
2010-06-10

Direct-acting pilot pressure control solenoid

#106
20100132588
2010-06-03

Control valve assembly for load carrying vehicles

#107
20100096576
2010-04-22

VALVE BLEED SYSTEM

#108
20100059129
2010-03-11

Fluid flow control apparatus

#109
20100044605
2010-02-25

Piezoelectric bending element actuator for servo valve

#110
20090309052
2009-12-17

Method and device for operating an electropneumatic valve

#111
20090301588
2009-12-10

Solenoid valve

#112
20090250021
2009-10-08

FLUID CONTROL SYSTEMS EMPLOYING COMPLIANT ELECTROACTIVE MATERIALS

#113
20090212247
2009-08-27

Manifold solenoid valve

#114
20090173901
2009-07-09

Actuator system

#115
20090159143
2009-06-25

Fluid pressure circuit

#116
20090126812
2009-05-21

Valve arrangement for different flow rate categories

#117
20090120521
2009-05-14

Solenoid actuated pilot valve for irrigation system valve

#118
20090114298
2009-05-07

Valve control unit

#119
20090090882
2009-04-09

Adjustable pressure control valves

#120
20090014230
2009-01-15

On-demand electro-hydraulic steering system

#121
20080312025
2008-12-18

Stepper motor driven proportional actuator

#122
20080308162
2008-12-18

Manifold-type solenoid valve apparatus having stop valve

#123
20080258090
2008-10-23

Solenoid operated fluid control valve

#124
20080257434
2008-10-23

Hydraulic control system for high flow applications in motor vehicles

#125
20080257433
2008-10-23

BLEED VALVE APPARATUS

#126
20080230127
2008-09-25

Actuator position control device using a fail freeze servo-valve

#127
20080216902
2008-09-11

First-stage pilot valve

#128
20080203339
2008-08-28

Solenoid valve assembly

#129
20080149181
2008-06-26

Rotary-actuated electro-hydraulic valve

#130
20080142100
2008-06-19

Stepper motor driven proportional fuel metering valve

#131
20080129364
2008-06-05

Dead band reduction in electronically controlled valves

#132
20080115848
2008-05-22

Valve, especially proportional pressure control valve

#133
20080099714
2008-05-01

Valve, circuit module and method providing integrated electronics in an electronically controlled valve and electronic assemblies

#134
20080099706
2008-05-01

Variable frequency and amplitude dither for electronically controlled valves

#135
20080099705
2008-05-01

Retaining element for a mechanical component

#136
20080099090
2008-05-01

Valve, controller, system and method providing closed loop current control of a voice coil using pulse width modulation drive elements

#137
20080099087
2008-05-01

Equalization of pressure in an electronically controlled valve

#138
20080099069
2008-05-01

Method, controller and system providing techniques for control of an air loaded regulator and cascaded control loops

#139
20080092967
2008-04-24

Control valve assembly

#140
20080087344
2008-04-17

Control valve assembly

#141
20080078462
2008-04-03

Valve controller

#142
20080066814
2008-03-20

Two-stage servo-valve

#143
20080047532
2008-02-28

Electronically controlled electromechanical valve

#144
20080023661
2008-01-31

Fast-acting pneumatic diaphragm valve

#145
20080017261
2008-01-24

Proportional pressure control valve

#146
20080000534
2008-01-03

Cartridge valve assembly

#147
20070209722
2007-09-13

Multi-way valve

#148
20070205383
2007-09-06

Methods and apparatus to exclude function fluid or seawater from solenoid armature cavities in subsea or surface solenoid valves

#149
20070199601
2007-08-30

Directional or flow control valve

#150
20070186985
2007-08-16

Valve assembly

#151
20070181196
2007-08-09

Spool valve

#152
20070178753
2007-08-02

Electromagnetic valve

#153
20070172362
2007-07-26

Microvalve device suitable for controlling a variable displacement compressor

#154
20070169826
2007-07-26

Valve

#155
20070163662
2007-07-19

Proportional pressure control valve

#156
20070157980
2007-07-12

Pilot operated control valve having a two stage poppet

#157
20070157979
2007-07-12

Fluid-control system

#158
20070131293
2007-06-14

Valve island with non-active area venting between components

#159
20070044857
2007-03-01

Pilot controlled pulse valve

#160
20070038355
2007-02-15

Features of main control for a power machine

#161
20070023093
2007-02-01

Latchable electrohydraulic servovalve

#162
20060283509
2006-12-21

Manifold-type solenoid valve assembly

#163
20060272710
2006-12-07

Device and method for pneumatic valve control

#164
20060272494
2006-12-07

Linear motor having a magnetically biased neutral position

#165
20060243331
2006-11-02

Microvalve device suitable for controlling a variable displacement compressor

#166
20060237068
2006-10-26

Vacuum and vacuum-breaking composite valve

#167
20060231147
2006-10-19

Proportional pressure control valve with control port pressure stabilization

#168
20060219466
2006-10-05

On-demand electro-hydraulic steering system

#169
20060218928
2006-10-05

Stepper motor driven proportional fuel metering valve

#170
20060216167
2006-09-28

Methods and apparatus for splitting and directing a pressurized fluid jet within a servovalve

#171
20060169338
2006-08-03

Hydraulic pressure control device for automatic transmission

#172
20060162682
2006-07-27

Solenoid spool valve

#173
20060145112
2006-07-06

Proportional directional control valve with a magnetic positioning sensor

#174
20060130914
2006-06-22

Position feedback pilot valve actuator for a spool control valve

#175
20060118186
2006-06-08

Dual-inlet selective flow regulating valve

#176
20060118183
2006-06-08

Control valve arrangements

#177
20060086395
2006-04-27

Electromagnetic pilot type directional control valve

#178
20060081802
2006-04-20

Solenoid valve

#179
20060081298
2006-04-20

Solenoid valve

#180
20060076067
2006-04-13

Fluid conrol valve

#181
20060070673
2006-04-06

Soft start device for compressed air systems

#182
20060054225
2006-03-16

Proportional pressure control valve

#183
20060021663
2006-02-02

Pressure-regulator servovalve with reduced leakage rate

#184
20060016495
2006-01-26

Control valve for a device to modify the timing of an internal combustion engine

#185
20060011878
2006-01-19

Control method and controller for a solenoid-operated electrohydraulic control valve

#186
20060006736
2006-01-12

Regulator valve for a torque-transmitting mechanism and method of engaging a torque-transmitting mechanism

#187
20050236595
2005-10-27

Coupling solenoid valve

#188
20050236054
2005-10-27

Coupling solenoid valve

#189
20050236053
2005-10-27

Solenoid valve with manual buttons

#190
20050236052
2005-10-27

Coupling solenoid valve

#191
20050224119
2005-10-13

Directional control valve

#192
20050173008
2005-08-11

Proportional pressure control valve

#193
20050139274
2005-06-30

Digitally controlled modular valve system

#194
20050139273
2005-06-30

Electromechanically controlled proportional valve

#195
20050127314
2005-06-16

Proportional directional control valve with a magnetic positioning sensor

#196
20050087243
2005-04-28

Pilot operated valve

#197
20050087242
2005-04-28

Proportional pressure control valve

#198
20050076962
2005-04-14

Automatic transmission shift control solenoid and valve

#199
20050067030
2005-03-31

Pilot controlled multiway valve

#200
20050061376
2005-03-24

Valve having junction type housing

#201
20050044858
2005-03-03

Two stage solenoid control valve

#202
16214577
2020-04-21

Proportional valve for fluid flow control

#203
14848375
2017-01-17

Solenoid valve