ClassID:

249413

Y10T137/8671 - CPC Classification

Classification description:

Fluid handling; Systems; Multi-way valve unit; Supply and exhaust; Reciprocating valve; Piston valve With annular passage [e.g., spool]

Recent Application in this class:
#1
20230392697
2023-12-07

Spool valve

#2
20220178454
2022-06-09

Relief valve cavity

#3
20210239139
2021-08-05

Valve device

#4
20210222789
2021-07-22

Stepper motor driven proportional rotary actuator

#5
20210164585
2021-06-03

PEDAL MODULATING VALVE ASSEMBLY INCLUDING MULTIPLE GAIN STATES

#6
20200348699
2020-11-05

Valve device

#7
20200326016
2020-10-15

Device for activity test of extraction check valve

#8
20200240284
2020-07-30

Emergency shut-off device

#9
20200032778
2020-01-30

Servo regulator

#10
20200003313
2020-01-02

Solenoid device

#11
20190376613
2019-12-12

Directly-controlled hydraulic directional valve

#12
20190331143
2019-10-31

Valve signature diagnosis and leak test device

#13
20190249783
2019-08-15

O-ring lubrication system

#14
20190186511
2019-06-20

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

#15
20190186510
2019-06-20

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

#16
20190170265
2019-06-06

Pressure relief valve

#17
20190137004
2019-05-09

Spool for fuel circuit valve of an aircraft engine

#18
20190136987
2019-05-09

Aircraft engine fuel circuit valve slide

#19
20190024806
2019-01-24

Spool valve

#20
20180363798
2018-12-20

Solenoid device with sensor

#21
20180355986
2018-12-13

Control valve

#22
20180335162
2018-11-22

Servo spool valve

#23
20180283571
2018-10-04

Solenoid valve and manifold-type solenoid valve assembly

#24
20180283564
2018-10-04

Valve device

#25
20180209558
2018-07-26

Flow control valve

#26
20180180192
2018-06-28

Valve with two-piece adjustable can with integral pole piece

#27
20180106387
2018-04-19

Spool for hydraulic valve

#28
20180094745
2018-04-05

Fluid valve

#29
20180038503
2018-02-08

Stepper motor driven proportional rotary actuator

#30
20180010700
2018-01-11

Valve with a control space vented via a sealing groove

#31
20170356554
2017-12-14

Valve device

#32
20170292632
2017-10-12

Spool valve

#33
20170261117
2017-09-14

Hydraulic valve

#34
20170198821
2017-07-13

High flow spool valve

#35
20170198727
2017-07-13

Oil exchange in hydraulically operated and electro-hydraulically operated hydraulic valves

#36
20170175918
2017-06-22

Curved shunt for solenoid curve shaping

#37
20170130857
2017-05-11

Electrohydraulic valve having dual-action right-angle pilot actuator

#38
20170097100
2017-04-06

Latching poppet valve

#39
20170051836
2017-02-23

Spool valve with special metering configuration for hydraulic valve main control speed

#40
20170022952
2017-01-26

Two stage valve with conical seat for flow shut-off and spool knife edge for metering flow control

#41
20160363227
2016-12-15

Hydraulic circuitry for skid steer loader valve

#42
20160363140
2016-12-15

Control valve device

#43
20160298784
2016-10-13

Solenoid-actuated fluid control valve assembly

#44
20160223091
2016-08-04

Flow control valve

#45
20160202708
2016-07-14

Fluid activated flow control apparatus

#46
20160201812
2016-07-14

Two-position, two-stage servo valve

#47
20160195879
2016-07-07

Valve device

#48
20160178079
2016-06-23

Control device for selectively fluidically connecting and disconnecting fluid connection points

#49
20160153556
2016-06-02

Open center hydraulic flushing system and method

#50
20160103455
2016-04-14

Hydraulic valve having pressure compensated flow control

#51
20160102778
2016-04-14

Hydraulic actuator lockout

#52
20160076642
2016-03-17

Regulator valve with integrated direct acting solenoid

#53
20150369262
2015-12-24

Fluid pressure control device

#54
20150362084
2015-12-17

Pressure limited flow spool

#55
20150330527
2015-11-19

Directional control valve with spool delay mechanism

#56
20150330519
2015-11-19

Line pressure valve to selectively control distribution of pressurized fluid

#57
20150285105
2015-10-08

Oil control valve

#58
20150275933
2015-10-01

Valves with metering sleeves

#59
20150260302
2015-09-17

Dual/variable gain oil pump control valve

#60
20150252908
2015-09-10

Fluid control valve

#61
20150240594
2015-08-27

Valve for a hydrocarbon well, hydrocarbon well provided with such valve and use of such valve

#62
20150219238
2015-08-06

Valve controller with flapper nozzle pilot valve

#63
20150204451
2015-07-23

Directional control valve for fluid and device for in-situ reconstitution and administering

#64
20150204294
2015-07-23

Two stage valve with conical seat for flow shut-off and spool knife edge for metering flow control

#65
20150198182
2015-07-16

Electrohydraulic control valve

#66
20150192042
2015-07-09

Five-way oil control valve with integrated venting spool

#67
20150184741
2015-07-02

Regulator valve with integrated direct acting solenoid

#68
20150168246
2015-06-18

Valve signature diagnosis and leak test device

#69
20150152959
2015-06-04

Multiple-ratio boost valve

#70
20150129069
2015-05-14

Control valve for a camshaft adjuster

#71
20150128826
2015-05-14

Valve assembly for rail vehicles and pneumatic system including same

#72
20150128583
2015-05-14

Travel control valve

#73
20150096636
2015-04-09

Engine valvetrain oil control valve

#74
20150090354
2015-04-02

Pilot-operated spool valve

#75
20150083666
2015-03-26

Reverse osmosis water-on-water control valve

#76
20150034193
2015-02-05

Electrically actuated valve having two ways and three positions

#77
20150027573
2015-01-29

Electromagnetic valve

#78
20150013808
2015-01-15

Spool valve

#79
20150013805
2015-01-15

Change-over valve

#80
20140352824
2014-12-04

Hydraulic pressure control apparatus

#81
20140326344
2014-11-06

Slide valve having a valve slide able to be impinged upon by an actuator

#82
20140311333
2014-10-23

Central valve for pivot motor actuator

#83
20140245731
2014-09-04

Spool valve and lubricating oil supply device

#84
20140202409
2014-07-24

Solenoid valve and valve opening-closing timing control device

#85
20140182722
2014-07-03

Switch valve

#86
20140116551
2014-05-01

Electro-hydraulic pressure reducing and relieving valve with flow force control for large flow capacity

#87
20140090393
2014-04-03

Minimum pressure and shutoff valve

#88
20140034168
2014-02-06

Pressure balanced rotation spool valve

#89
20140033730
2014-02-06

Pressure regulating valve for aircraft engine

#90
20140007965
2014-01-09

Control valve

#91
20140007964
2014-01-09

Proportional pressure-regulating valve

#92
20130153068
2013-06-20

Flow directing spool for valve

#93
20130146794
2013-06-13

Magnetic valve and fluid supply system using the same

#94
20130146165
2013-06-13

Pneumatic control valve and pneumatic control system

#95
20130078121
2013-03-28

Separation type pneumatic dual partition membrane pump and external pneumatic control valve thereof

#96
20130056669
2013-03-07

Single acting directional control valve

#97
20130037131
2013-02-14

Control valve

#98
20130026401
2013-01-31

Regulator valve with integrated direct acting solenoid

#99
20130019958
2013-01-24

Energy-saving valve

#100
20130014845
2013-01-17

SPOOL TYPE HYDRAULIC CONTROL VALVE WHICH SPOOL IS SEALED WITH ALL METAL SEAL RING

#101
20130000753
2013-01-03

Valve signature diagnosis and leak test device

#102
20120326066
2012-12-27

Solenoid spool valve

#103
20120292540
2012-11-22

Valve device

#104
20120261598
2012-10-18

DIRECTLY PILOTED VALVE ASSEMBLY

#105
20120255638
2012-10-11

HYDRAULIC CONTROL VALVE HAVING A PILOT PISTON ARRANGED INSIDE THE HOLLOW SPOOL

#106
20120255617
2012-10-11

Pilot-operated three-position switching valve

#107
20120248362
2012-10-04

Low gain pressure relief valve for a fluid pump

#108
20120247594
2012-10-04

Pilot relay

#109
20120237362
2012-09-20

Liquid pressure circuit

#110
20120234417
2012-09-20

Liquid flow rate control valve

#111
20120234400
2012-09-20

Liquid flow rate control valve

#112
20120216896
2012-08-30

SERVO VALVE

#113
20120211686
2012-08-23

Solenoid valve

#114
20120186678
2012-07-26

Pressure control valve

#115
20120186441
2012-07-26

Torque control for open circuit piston pump

#116
20120175428
2012-07-12

Valve for dispensing water and air in installations that spray water under pressure

#117
20120168560
2012-07-05

Flow regulation in aircraft systems

#118
20120168274
2012-07-05

Hydraulic circuit for automatic transmission having area controlled shift actuator valve with flow force compensation

#119
20120160876
2012-06-28

Dispenser

#120
20120160875
2012-06-28

Valve and dispenser using the valve

#121
20120152195
2012-06-21

Hydraulic valve for an oscillating motor adjuster

#122
20120145252
2012-06-14

Micromachined Device and Control Method

#123
20120145105
2012-06-14

Control valve

#124
20120104302
2012-05-03

Control valve

#125
20120056117
2012-03-08

Solenoid valve

#126
20120048410
2012-03-01

Oil control valve and hydraulic control apparatus

#127
20120048398
2012-03-01

Slide-type pressure control valve having improved damping behavior

#128
20120037246
2012-02-16

Twin power valve with integrated pressure balance

#129
20120024407
2012-02-02

Internally vented valve

#130
20120012768
2012-01-19

Stepper motor operated balanced flow control valve

#131
20110315257
2011-12-29

LINEAR HOLLOW SPOOL VALVE

#132
20110297262
2011-12-08

Hydraulic valve

#133
20110248195
2011-10-13

Control valve assembly for load carrying vehicles

#134
20110233447
2011-09-29

Valve case for oil control valve

#135
20110226364
2011-09-22

Control Spool for Spool Valves and Method for the Production Thereof

#136
20110114866
2011-05-19

Device for driving a double seat valve capable of seat cleaning

#137
20110114204
2011-05-19

Control valve

#138
20110100492
2011-05-05

Seat cleaning-capable double-seat valve

#139
20110088789
2011-04-21

Hydraulic control valve

#140
20110067771
2011-03-24

Spool valve

#141
20100327206
2010-12-30

Regulator valve

#142
20100326552
2010-12-30

Solenoid valve

#143
20100313980
2010-12-16

Solenoid valve apparatus

#144
20100300552
2010-12-02

Hydraulic valve device

#145
20100282991
2010-11-11

Control valve

#146
20100269935
2010-10-28

Valve system

#147
20100258210
2010-10-14

Spool-type selector valve

#148
20100252132
2010-10-07

Piloted poppet valve

#149
20100243941
2010-09-30

Sliding valve

#150
20100236399
2010-09-23

Control valve for a variable displacement pump

#151
20100229983
2010-09-16

Flow force reduction by incremental pressure drop

#152
20100218836
2010-09-02

Directly piloted valve assembly

#153
20100187451
2010-07-29

Pressure regulating valve for aircraft engine

#154
20100155185
2010-06-24

Railway brake cylinder

#155
20100139791
2010-06-10

Hydraulic controller

#156
20100132588
2010-06-03

Control valve assembly for load carrying vehicles

#157
20100125018
2010-05-20

Hydraulic control apparatus of continuously variable transmission of hybrid vehicle

#158
20100123092
2010-05-20

FLUID CONTROL VALVE

#159
20100096033
2010-04-22

Fluid pressure equipment provided with low sliding packing

#160
20100084031
2010-04-08

Pilot operated spool valve

#161
20100072408
2010-03-25

Multiplexing control valve

#162
20100071791
2010-03-25

Slide valve

#163
20100065766
2010-03-18

Electrically operated hydraulic valve

#164
20100044605
2010-02-25

Piezoelectric bending element actuator for servo valve

#165
20100032595
2010-02-11

Exhaust venting for a fluid control device

#166
20090301588
2009-12-10

Solenoid valve

#167
20090250645
2009-10-08

Solenoid valve

#168
20090242056
2009-10-01

Hydraulic control valve apparatus for automatic transmission

#169
20090229693
2009-09-17

Hydraulic valves with integral seals

#170
20090211850
2009-08-27

Lubrication control system for automatic transmissions

#171
20090178713
2009-07-16

High flow capacity positioner

#172
20090159829
2009-06-25

Control valve for a camshaft adjuster

#173
20090145501
2009-06-11

PISTON SLIDE VALVE

#174
20090140192
2009-06-04

Pressure control valve

#175
20090134349
2009-05-28

Control valve for a camshaft adjuster

#176
20090134082
2009-05-28

Piston for a linear spool valve

#177
20090133767
2009-05-28

Dual redundant servovalve

#178
20090101093
2009-04-23

Valve timing control device

#179
20090078112
2009-03-26

Control valve for a hydraulic motor

#180
20090071545
2009-03-19

Automatic transmission having hydraulic valves with flow force compensation

#181
20090020178
2009-01-22

Valve part of a hydraulic control valve

#182
20090008586
2009-01-08

Proportional solenoid and flow control valve employing thereof

#183
20090007976
2009-01-08

LIFD valve assembly

#184
20080309083
2008-12-18

Slide vane for hydraulic power steering

#185
20080308757
2008-12-18

Solenoid valve

#186
20080276993
2008-11-13

Flow divider

#187
20080271689
2008-11-06

Control valve for a device for variably adjusting the valve timing for gas exchange valves in an internal combustion engine

#188
20080264494
2008-10-30

Exhaust apparatus pressure control system

#189
20080251748
2008-10-16

Balanced solenoid valve

#190
20080245427
2008-10-09

Balanced solenoid valve

#191
20080203342
2008-08-28

Linear solenoid valve

#192
20080163837
2008-07-10

Electromagnetic hydraulic valve

#193
20080148686
2008-06-26

Closing device

#194
20080053304
2008-03-06

Hydraulic control apparatus

#195
20080035225
2008-02-14

Flow force reduction by incremental pressure drop

#196
20080000535
2008-01-03

Control valve with load sense signal conditioning

#197
20070267450
2007-11-22

Spool valve and valve seat assembly for an intermittently operable hot melt adhesive material control module

#198
20070267078
2007-11-22

Hydraulic control valve in the form of a cartridge

#199
20070261747
2007-11-15

Spool-type manual valve with position-adjustable lever

#200
20070240776
2007-10-18

Hydraulic pressure control system for automatic transmission device

#201
20070209722
2007-09-13

Multi-way valve

#202
20070175425
2007-08-02

Method and apparatus for operating an oil flow control valve

#203
20070170387
2007-07-26

Pressure control valve

#204
20070144596
2007-06-28

Hydraulic valve

#205
20070131291
2007-06-14

Manual valve of hydraulic pressure control system for automatic transmission

#206
20070131290
2007-06-14

Manual valve of hydraulic control system for continuously variable transmission

#207
20070125433
2007-06-07

Manual valve of a hydraulic pressure control system for an automatic transmission

#208
20070095316
2007-05-03

Hydraulic control system for internal combustion engine

#209
20070079879
2007-04-12

Valve with increased dynamic response

#210
20070051414
2007-03-08

Spool valve device

#211
20070028973
2007-02-08

Directional control valve block

#212
20070023722
2007-02-01

Spool valve apparatus

#213
20060254657
2006-11-16

Spool valve apparatus and method

#214
20060231147
2006-10-19

Proportional pressure control valve with control port pressure stabilization

#215
20060207655
2006-09-21

Automatic transmission having a pressure regulator with flow force compensation

#216
20060191583
2006-08-31

Hydraulic control valve

#217
20060191582
2006-08-31

Hydraulic control arrangement

#218
20060150807
2006-07-13

Hydraulic control arrangement

#219
20060144451
2006-07-06

Hydraulic pressure control device

#220
20060137752
2006-06-29

Control device for controlling the movements in a multi-way valve for driving a cylinder-piston assembly

#221
20060137751
2006-06-29

Hydraulic distributor with torque slits

#222
20060130915
2006-06-22

Manual valve of automatic transmission

#223
20060130914
2006-06-22

Position feedback pilot valve actuator for a spool control valve

#224
20060118186
2006-06-08

Dual-inlet selective flow regulating valve

#225
20060096646
2006-05-11

Annular port construction for valve applications

#226
20060086395
2006-04-27

Electromagnetic pilot type directional control valve

#227
20060081299
2006-04-20

Hydraulic control valve with regeneration function

#228
20060081298
2006-04-20

Solenoid valve

#229
20060005884
2006-01-12

Gas pressure regulator

#230
20060000507
2006-01-05

Methods and apparatus for maintaining pressure gain in a servovalve assembly

#231
20050224119
2005-10-13

Directional control valve

#232
20050211938
2005-09-29

Linear solenoid valve

#233
20050211318
2005-09-29

Fluid distribution and control valve and use thereof to supply enriched air to the occupants of an aircraft

#234
20050211295
2005-09-29

Control valve apparatus

#235
20050207900
2005-09-22

Electromagnetic hydraulic valve, in particular a proportional valve for controlling a device for adjusting the rotation angle of a camshaft relative to the crankshaft in an internal combustion engine, and a method for the production thereof

#236
20050205145
2005-09-22

Annular port construction for valve applications

#237
20050183783
2005-08-25

Solenoid control valve

#238
20050156387
2005-07-21

Vented seal having redundant sealing components

#239
20050133098
2005-06-23

Normally open hydraulic control valve

#240
20050067597
2005-03-31

Pressure control valve

#241
20050067031
2005-03-31

Slide spool valve

#242
20050056327
2005-03-17

Electromagnetic hydraulic valve, in particular a proportional valve for controlling device for adjusting the rotation angle of a camshaft relative to the crankshaft in an internal combustion engine, and a method for the production thereof

#243
20050039805
2005-02-24

Spool-type hydraulic directional control valve having reduced cavitation

#244
14781454
2018-05-15

Pre-tensioning-pre-twisting full-bridge 2D electro-hydraulic proportional directional valve