ClassID:

249126

Y10T137/7758 - CPC Classification

Classification description:

Fluid handling; Line condition change responsive valves Pilot or servo controlled

Sub-classes:
Recent Application in this class:
#1
20240301962
2024-09-12

Systems and Methods for Providing Surge Relief

#2
20230184348
2023-06-15

Systems and methods for providing surge relief

#3
20210018943
2021-01-21

Rapid dome loading pilot valve bypass

#4
20180119690
2018-05-03

Dual control valve for reciprocating compressor unloader system

#5
20170234444
2017-08-17

Interlace lifting mechanism

#6
20170100577
2017-04-13

Flow based pressure isolation and fluid delivery system including flow based pressure isolation and flow initiating mechanism

#7
20170016554
2017-01-19

Pilot valve arrangement

#8
20170016553
2017-01-19

Pilot valve

#9
20160025233
2016-01-28

Pressure relief valve with singular body

#10
20160018830
2016-01-21

Pilot operated fluid regulators having a reset apparatus and related methods

#11
20150346737
2015-12-03

Regulators having an isolated loading chamber and blowout prevention apparatus

#12
20150329126
2015-11-19

Rail vehicle with pressure surge-safe graywater line

#13
20150276132
2015-10-01

Residual pressure valve device, valve and cylinder having such a device

#14
20150219239
2015-08-06

Pilot-operated valve with floating piston

#15
20150136249
2015-05-21

Valve for ventilation of a tank

#16
20150114492
2015-04-30

Automatic flow control system and apparatus

#17
20150105674
2015-04-16

Flow based pressure isolation and fluid delivery system including flow based pressure isolation and flow initiating mechanism

#18
20150090352
2015-04-02

Fluid-driven shutoff valve

#19
20150059877
2015-03-05

Interlace lifting mechanism

#20
20150059875
2015-03-05

Temperature control valve actuator assembly

#21
20150059874
2015-03-05

Dual cartridge temperature control valve

#22
20150040555
2015-02-12

Hydraulic drive

#23
20140367616
2014-12-18

Safety means against pressure exceedance

#24
20140224343
2014-08-14

Anti-cavitation throttle valve and method of operating the same

#25
20140219821
2014-08-07

Dual control valve for reciprocating compressor unloader system

#26
20140209022
2014-07-31

Raw material gas supply method

#27
20140202560
2014-07-24

Multiflex coupling

#28
20140174562
2014-06-26

Control pilot valve apparatus

#29
20140158226
2014-06-12

Anti-flooding safety device for household appliances, in particular washing machines

#30
20140137732
2014-05-22

Flow control valve for construction machinery

#31
20140130883
2014-05-15

Flow reduction for bleed air systems

#32
20140048148
2014-02-20

Pressure relief valve with singular body

#33
20130276914
2013-10-24

PIEZOELECTRIC VALVE AND PUMP ACTUATOR

#34
20130240053
2013-09-19

Water circulation system valve assemblies having water temperature control

#35
20130213496
2013-08-22

Pressure control system for relief and shutdown of flow

#36
20130153057
2013-06-20

Compact two-way cartridge valve using combined flange-controlled plate

#37
20130153056
2013-06-20

Composite valve

#38
20130092259
2013-04-18

Pilot operated fluid regulators having a reset apparatus and related methods

#39
20130061953
2013-03-14

Emergency shut-off signal generator for a valve assembly

#40
20130048093
2013-02-28

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

#41
20130037130
2013-02-14

Regulators having an isolated loading chamber and blowout prevention apparatus

#42
20120323119
2012-12-20

Flow based pressure isolation mechanism for a fluid delivery system

#43
20120222205
2012-09-06

Automatic flush actuation apparatus

#44
20120211085
2012-08-23

Tap liquid savings in a liquid distribution system

#45
20120186659
2012-07-26

Fluid control valve systems, fluid systems equipped therewith, and methods of using

#46
20120160344
2012-06-28

Vacuum control valve and vacuum control system

#47
20120090940
2012-04-19

Micro-electro-mechanical-systems based hydraulic control system for a dry dual clutch transmission

#48
20120090704
2012-04-19

Liquid flow controller and precision dispense apparatus and system

#49
20120090689
2012-04-19

SYSTEM AND METHOD FOR OPERATING A DRAIN VALVE

#50
20120085436
2012-04-12

Hydraulic valve for use in a control module of an automatic transmission

#51
20120073678
2012-03-29

Safety valve system for overpressure protection of hydraulic circuits

#52
20120055566
2012-03-08

Pump flow restricting device

#53
20120018010
2012-01-26

Hydraulic Transmission

#54
20120018003
2012-01-26

Latching valve

#55
20120012199
2012-01-19

SYSTEM AND METHOD FOR HYDRAULICALLY MANAGING FLUID PRESSURE DOWNSTREAM FROM A MAIN VALVE BETWEEN SET POINTS

#56
20120006417
2012-01-12

System and method for hydraulically managing fluid pressure downstream from a main valve between set points

#57
20120006413
2012-01-12

System and method for hydraulically managing fluid pressure downstream from a main valve between set points

#58
20110297251
2011-12-08

Combined hydraulic control valve

#59
20110259445
2011-10-27

Water circulation system valve assemblies having water temperature control

#60
20110247359
2011-10-13

Expansion valve with force equalization

#61
20110232779
2011-09-29

Excess flow safety shut-off valve

#62
20110214756
2011-09-08

Servo Valve

#63
20110192471
2011-08-11

Variable flow rate valve system

#64
20110174380
2011-07-21

Vacuum control system and vacuum control method

#65
20110153177
2011-06-23

METHOD AND DEVICE FOR DETERMINING AND BALANCING THE WORKING POINT OF VALVES IN A HYDRAULIC SYSTEM

#66
20110132473
2011-06-09

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

#67
20110132472
2011-06-09

Device for controlling a pilot pressure signal

#68
20110130882
2011-06-02

Fuel quality traceable and remote system

#69
20110126920
2011-06-02

Hydraulic valve device

#70
20110108137
2011-05-12

Pressure regulator having an integral pilot and self-relieving mechanism

#71
20110073193
2011-03-31

Sensor replacement valve

#72
20110072568
2011-03-31

Automatic flush actuation apparatus

#73
20110067762
2011-03-24

Automatic flush actuation apparatus

#74
20110061841
2011-03-17

Temperature insensitive mass flow controller

#75
20110000552
2011-01-06

Dynamic leak control for system with working fluid

#76
20100326541
2010-12-30

Stand for pressure relief valve

#77
20100300552
2010-12-02

Hydraulic valve device

#78
20100294375
2010-11-25

SPEED CONTROL VALVE SYSTEM

#79
20100269923
2010-10-28

Electronic faucets for long-term operation

#80
20100269596
2010-10-28

Gas meter device and gas supply system using the device

#81
20100243068
2010-09-30

Servo pressure control valve

#82
20100230001
2010-09-16

Methods and systems for selectively fuelling a vehicle

#83
20100229966
2010-09-16

Fuel systems and methods for controlling fuel systems in a vehicle with multiple fuel tanks

#84
20100193051
2010-08-05

Differential-pressure flowmeter and flow-rate controller

#85
20100126601
2010-05-27

Pilot valve for a pressure reducing valve

#86
20100126599
2010-05-27

PILOT OPERATED CHECK VALVE

#87
20100083667
2010-04-08

Bi-modal bleed valve assembly for gas turbine engine

#88
20100078081
2010-04-01

TEMPERATURE CONTROL VALVE

#89
20100076307
2010-03-25

Flow based pressure isolation mechanism for a fluid delivery system

#90
20100071786
2010-03-25

Pressure loaded service regulator with pressure balanced trim

#91
20100071784
2010-03-25

Pilot switch

#92
20100059125
2010-03-11

Balanced pilot operated check valve

#93
20100043899
2010-02-25

Arrangement for controlling flow of fluid to a gas turbine engine component

#94
20100042263
2010-02-18

Intelligent sprinkler irrigation system

#95
20090320934
2009-12-31

Intake-Gas Throttle Device

#96
20090283150
2009-11-19

Automate fluid flow control system

#97
20090283149
2009-11-19

Automatic flush actuation apparatus

#98
20090283147
2009-11-19

Automate fluid flow control system

#99
20090235989
2009-09-24

Automatic flush actuation apparatus

#100
20090230336
2009-09-17

Liquid flow controller and precision dispense apparatus and system

#101
20090205723
2009-08-20

Hydraulic circuit of construction machine

#102
20090044871
2009-02-19

Low pressure rise rate pilot operated poppet relief valve

#103
20090041592
2009-02-12

Pump

#104
20090007974
2009-01-08

Valve for allocating available fluid to high priority functions of a hydraulic system

#105
20090007972
2009-01-08

Water circulation system valve assemblies having water temperature control

#106
20080314462
2008-12-25

Pressure Regulator

#107
20080265193
2008-10-30

Automatic flush actuation apparatus

#108
20080251146
2008-10-16

System and method for hydraulically managing fluid pressure downstream from a main valve between set points

#109
20080230127
2008-09-25

Actuator position control device using a fail freeze servo-valve

#110
20080154214
2008-06-26

Flow Based Pressure Isolation and Fluid Delivery System Including Flow Based Pressure Isolation

#111
20080152546
2008-06-26

ENHANCED SAMPLE PROCESSING DEVICES, SYSTEMS AND METHODS

#112
20080078456
2008-04-03

HYDROSTATIC VARIABLE UNIT WITH A SERVO SYSTEM AND A VALVE UNIT CONTROLLING THE SERVO SYSTEM

#113
20080072969
2008-03-27

Automate fluid flow control system

#114
20080058720
2008-03-06

Flow based pressure isolation mechanism for a fluid delivery system

#115
20080041459
2008-02-21

GAS STORAGE AND DISPENSING SYSTEM FOR VARIABLE CONDUCTANCE DISPENSING OF GAS AT CONSTANT FLOW RATE

#116
20080023073
2008-01-31

High pressure transducer

#117
20070277883
2007-12-06

Hydraulic circuit for construction machine

#118
20070246670
2007-10-25

Automatic flush actuation apparatus

#119
20070113901
2007-05-24

Cooling apparatus

#120
20070095400
2007-05-03

SHUT-OFF VALVE SYSTEM

#121
20070063158
2007-03-22

Electronic faucets for long-term operation

#122
20060144957
2006-07-06

Intelligent sprinkler irrigation system

#123
20060090797
2006-05-04

Gas storage and dispensing system for variable conductance dispensing of gas at constant flow rate

#124
20050258383
2005-11-24

Automatic flush actuation apparatus

#125
20050252554
2005-11-17

Surge relief apparatus and method

#126
20050173003
2005-08-11

Liquid flow controller and precision dispense apparatus and system

#127
20050092945
2005-05-05

Air flow control valve

#128
20050077491
2005-04-14

Automatic flush actuation apparatus

#129
20050034773
2005-02-17

Fluid balance control system for use in a fuel processor

#130
20050017208
2005-01-27

Automatic flush actuation apparatus