ClassID:

153221

F16L37/34 - CPC Classification

Classification description:

Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied at least one of the lift valves being of the sleeve type, i.e. a sleeve is telescoped over an inner cylindrical wall

Recent Application in this class:
#1
20260153180
2026-06-04

LOW-SPILL COUPLING ASSEMBLY

#2
20260153178
2026-06-04

COMPACT FLUID COUPLINGS

#3
20260153177
2026-06-04

COMPACT FLUID COUPLINGS

#4
20260055839
2026-02-26

FLUID COUPLINGS

#5
20260029077
2026-01-29

ASEPTIC COUPLING SYSTEM WITH SEAL ISOLATING CONNECTORS

#6
20260002621
2026-01-01

SLIT-FREE SAFE DISCONNECT

#7
20250389360
2025-12-25

FLUID COUPLINGS

#8
20250369547
2025-12-04

LOW-SPILL COUPLING ASSEMBLY

#9
20250361964
2025-11-27

Low-Spill Coupling Assembly

#10
20250347377
2025-11-13

QUICK COUPLER

#11
20250314341
2025-10-09

FLUID HANDLING COUPLINGS

#12
20250297699
2025-09-25

Low-Spill Coupling Assembly

#13
20250257830
2025-08-14

TUBE COUPLING

#14
20250251072
2025-08-07

QUICK COUPLER ASSEMBLY

#15
20250172226
2025-05-29

MEDICAL CONNECTOR WITH LUER-INCOMPATIBLE CONNECTION PORTION

#16
20250146609
2025-05-08

TUBE JOINT

#17
20250137565
2025-05-01

BLIND MATE LIQUID QUICK DISCONNECT COUPLER

#18
20250122965
2025-04-17

Low-Spill Coupling Assembly

#19
20250109813
2025-04-03

FLUID HANDLING COUPLINGS

#20
20250082917
2025-03-13

Connector System For Releasably Connecting Fluid Conduits

#21
20250075835
2025-03-06

QUICK COUPLER STRUCTURE

#22
20250067378
2025-02-27

BLIND MATE COUPLING WITH A SELF CENTERING MECHANISM

#23
20250020254
2025-01-16

QUICK DISCONNECT COUPLING SYSTEMS AND RELATED METHODS

#24
20250020253
2025-01-16

FLUIDIC COUPLING ELEMENT AND ASSOCIATED FLUIDIC COUPLING

#25
20250003542
2025-01-02

COUPLING DEVICE AND METHOD

#26
20240410506
2024-12-12

SLIT-FREE SAFE DISCONNECT

#27
20240401734
2024-12-05

ASEPTIC COUPLING SYSTEM WITH SEAL ISOLATING CONNECTORS

#28
20240360942
2024-10-31

Low-Spill Coupling Assembly

#29
20240360941
2024-10-31

Low-Spill Coupling Assembly

#30
20240360939
2024-10-31

Low-Spill Coupling Assembly

#31
20240358988
2024-10-31

Fluid connector system

#32
20240353043
2024-10-24

Low-Spill Coupling Assembly

#33
20240353042
2024-10-24

ALIGNMENT GUIDING STRUCTURE FOR QUICK COUPLER

#34
20240353041
2024-10-24

FLUID HANDLING COUPLINGS

#35
20240328552
2024-10-03

CONNECTOR ASSEMBLY

#36
20240328551
2024-10-03

FLUID HANDLING COUPLINGS

#37
20240318756
2024-09-26

SECURE BRAKE FLUID COUPLER

#38
20240301978
2024-09-12

QUICK LOCK RELEASE COUPLING

#39
20240280202
2024-08-22

COMPACT FLUID COUPLINGS

#40
20240271733
2024-08-15

SYSTEMS AND METHODS FOR A FLOATING QUICK DISCONNECT IN LIQUID COOLING

#41
20240230001
2024-07-11

FLUID HANDLING COUPLINGS

#42
20240218952
2024-07-04

CONNECTION MEMBER AND CONNECTION UNIT

#43
20240175531
2024-05-30

BLIND MATE FLUID COUPLING WITH MISALIGNMENT COMPENSATION

#44
20240167604
2024-05-23

Low-spill coupling assembly

#45
20240159342
2024-05-16

Low-Spill Coupling Assembly

#46
20240142033
2024-05-02

TRANSFER DEVICE

#47
20240133500
2024-04-25

Fluid handling couplings

#48
20240125418
2024-04-18

Blind mate coupling with a self centering mechanism

#49
20240102595
2024-03-28

QUICK DISCONNECT COUPLING SYSTEMS AND RELATED METHODS

#50
20240098874
2024-03-21

Electronic assembly having both chassis and module dual-flow connectors and associated methods

#51
20240093819
2024-03-21

FLUID CONNECTOR, AND SEALING STRUCTURE

#52
20240093818
2024-03-21

QUICK DISCONNECT COUPLING SYSTEMS AND RELATED METHODS

#53
20240077160
2024-03-07

Female connector and connector assembly

#54
20240052960
2024-02-15

Nipple with relief valve

#55
20240019064
2024-01-18

Single-use disconnect fluid couplings

#56
20240011588
2024-01-11

Medical connector with luer-incompatible connection portion

#57
20230320032
2023-10-05

Disconnects

#58
20230250909
2023-08-10

Quick coupling and connection assembly comprising such a quick coupling

#59
20230235841
2023-07-27

FLUID COUPLINGS

#60
20230220936
2023-07-13

Fluid handling couplings

#61
20230213128
2023-07-06

QUICK CONNECTOR

#62
20230204139
2023-06-29

FLUID COUPLINGS

#63
20230194025
2023-06-22

Undersea hydraulic coupling with multiple pressure-energized metal seals

#64
20230181889
2023-06-15

Connector system for releasably connecting fluid conduits

#65
20230142854
2023-05-11

Connector system for releasably connecting fluid conduits

#66
20230141879
2023-05-11

Tube coupling

#67
20230134482
2023-05-04

Connector system for releasably connecting fluid conduits

#68
20230079538
2023-03-16

Hydraulic coupling device and method of mounting the same

#69
20230066775
2023-03-02

Coupler

#70
20230043058
2023-02-09

Single-use disconnect fluid couplings

#71
20230011301
2023-01-12

Compact fluid couplings

#72
20220412496
2022-12-29

Blind mate fluid coupling with misalignment compensation

#73
20220412493
2022-12-29

Systems and methods for a floating quick disconnect in liquid cooling

#74
20220403966
2022-12-22

Quick disconnect coupling systems and related methods

#75
20220356974
2022-11-10

SWIVELLING COUPLING WITH EXTERNAL SEALING ELEMENT

#76
20220349503
2022-11-03

Male or female fluid coupling element and fluid coupling including such an element

#77
20220325838
2022-10-13

Hydraulic pressure relief depressurization valve assembly for quick coupling

#78
20220290787
2022-09-15

Female element of a quick connector, and quick connector comprising such a female element and an associated male element

#79
20220282814
2022-09-08

Medical connectors with luer-incompatible connection portions

#80
20220243848
2022-08-04

Fluid handling couplings

#81
20220227347
2022-07-21

COUPLING ARRANGEMENT FOR A HYDRAULIC DEIVE, AND METHOD FOR COUPLING AND FLUIDICALLY CONNECTING FIRST AND SECOND COUPLING COMPONENT OF THE COUPLING ARRANGEMENT

#82
20220204191
2022-06-30

Connection system and connecting method for transferring fluids between two vehicles or between a vehicle and a fixed structure

#83
20220154864
2022-05-19

Fluid handling couplings

#84
20210388930
2021-12-16

Single-use disconnect fluid couplings

#85
20210388929
2021-12-16

Quick disconnect coupling systems and related methods

#86
20210388926
2021-12-16

Fluid couplings

#87
20210360824
2021-11-18

Disconnects

#88
20210356064
2021-11-18

COUPLING ASSEMBLY WITH VALVES AND METHOD OF COUPLING

#89
20210324988
2021-10-21

Low-spill coupling assembly

#90
20210310594
2021-10-07

Quick disconnect coupling

#91
20210290927
2021-09-23

Connector system for releasably connecting fluid conduits

#92
20210254769
2021-08-19

Quick disconnect fitting

#93
20210231244
2021-07-29

Locking mechanism for quick connect coupling

#94
20210199223
2021-07-01

Fluid couplings

#95
20210190248
2021-06-24

Connect under pressure coupling assembly

#96
20210148499
2021-05-20

Quick-coupling with automatic locking mechanism

#97
20210131599
2021-05-06

Quick disconnect coupling with internal valves

#98
20210131598
2021-05-06

Quick disconnect coupling with internal valves

#99
20210108750
2021-04-15

Coupling, and method for transferring fluids

#100
20210095805
2021-04-01

Fluid coupling

#101
20200347977
2020-11-05

Locking coupling with multiple coupling units

#102
20200332937
2020-10-22

Coupling element for a hydraulic coupling

#103
20200332621
2020-10-22

Undersea hydraulic coupling with multiple pressure-energized metal seals

#104
20200284387
2020-09-10

Hydraulic coupling device and male and female coupling units

#105
20200284385
2020-09-10

Axially engaging medical connector system that inhibits fluid penetration between mating surfaces

#106
20200188651
2020-06-18

Connector system for releasably connecting fluid conduits

#107
20200063905
2020-02-27

Low-spill coupling assembly

#108
20200063904
2020-02-27

Low-spill coupling assembly

#109
20190390810
2019-12-26

Flat face female hydraulic coupling

#110
20190390809
2019-12-26

Flat face male hydraulic coupling

#111
20190383433
2019-12-19

Fluid coupling

#112
20190368642
2019-12-05

PIPE JOINT

#113
20190316718
2019-10-17

Coupling element and coupling device comprising this coupling element

#114
20190301651
2019-10-03

Fluidic coupling

#115
20190269901
2019-09-05

Connector system for releasably connecting fluid conduits

#116
20190264853
2019-08-29

Low engagement force fluid coupling

#117
20190219209
2019-07-18

Quick-coupling with internal slide locking mechanism

#118
20190203865
2019-07-04

Low Leak Hydraulic Connector

#119
20190162347
2019-05-30

Coupling system for providing a plurality of fluid connections

#120
20190152762
2019-05-23

Fluid coupling assembly

#121
20190093809
2019-03-28

Pipe coupling comprising female coupling member and male coupling member

#122
20190078712
2019-03-14

Axially engaging medical connector system with diminished fluid remnants

#123
20190072286
2019-03-07

Split heating and cooling systems

#124
20190017640
2019-01-17

Safety joint

#125
20190017332
2019-01-17

Multi-purpose through conduit wet-mate connector and method

#126
20190003628
2019-01-03

Coupling sleeve for a hydraulic coupling

#127
20180328526
2018-11-15

Coupling element for a coupling for connecting pressure medium lines

#128
20180304066
2018-10-25

Connector system for releasably connecting fluid conduits

#129
20180252352
2018-09-06

Fluid apparatus

#130
20180238480
2018-08-23

Valved connector

#131
20180209573
2018-07-26

Fluid coupling element and fluid-coupling comprising such an element

#132
20180180208
2018-06-28

Female coupling element, to be coupled with a complementary male element and coupling comprising such a female element

#133
20180172190
2018-06-21

Axially engaging medical connector system with fluid-resistant mating interfaces

#134
20180080668
2018-03-22

Split heating and cooling systems

#135
20180045350
2018-02-15

Hollow body coupling device

#136
20180003324
2018-01-04

Connector assembly

#137
20170350548
2017-12-07

Coaxial fluid connector

#138
20170350547
2017-12-07

Quick coupling element with discharge member and coupling member comprising such an element

#139
20170349428
2017-12-07

Vessel overfill protection system

#140
20170321836
2017-11-09

INTEGRATED FLUSH-FACE CARTRIDGE

#141
20170261140
2017-09-14

Quick coupling for fluid under pressure

#142
20170241581
2017-08-24

Oxygen supply quick connect adapter

#143
20170211738
2017-07-27

Quick coupling for the disconnectable connection of pipelines of fluid under pressure

#144
20170205011
2017-07-20

Connector system for releasably connecting fluid conduits

#145
20170184242
2017-06-29

Male or female quick coupling element and quick coupling including such an element

#146
20170138522
2017-05-18

Non-spill connect under pressure coupler

#147
20160369923
2016-12-22

Multi-coupling device for the multiple quick coupling of multiple hydraulic, electrical and/or pneumatic lines, with the possibility of individual manual couplings

#148
20160279660
2016-09-29

Discharge System

#149
20160138746
2016-05-19

Twist-to-connect dry break coupling

#150
20160131291
2016-05-12

Hydraulic line connector

#151
20160066480
2016-03-03

Blind docking apparatus to enable liquid cooling in compute nodes

#152
20160061370
2016-03-03

Quick-fit hydraulic or hydrodynamic coupling for pressurized fluids

#153
20160047504
2016-02-18

Quick-fit coupling for pressurized fluid

#154
20160047503
2016-02-18

Nozzle and keyed flush face receiver

#155
20160046479
2016-02-18

Nozzle and keyed flush face receiver

#156
20160040815
2016-02-11

Quick coupling device for pressurized fluid

#157
20160018036
2016-01-21

Coupling part for a coupling for pressure medium lines

#158
20160010777
2016-01-14

Coupling with automatic seal

#159
20160010772
2016-01-14

Connecting plug, cooling circuit equipped with such a connecting plug and method for connecting such a cooling circuit and a cold plate

#160
20150377402
2015-12-31

Inline connect breakaway hose coupler

#161
20150267850
2015-09-24

Coaxial high-pressure coupling with overpressure relief

#162
20150233511
2015-08-20

Quick coupling for connecting during fluid flow in a hydraulic circuit

#163
20150165897
2015-06-18

Fuel tank vent and shutoff valve

#164
20150090915
2015-04-02

Low-spill coupling assembly

#165
20150041010
2015-02-12

Coupling designed for pressure-relieved coupling

#166
20150000770
2015-01-01

Coupling device with residual pressure relief system

#167
20140326346
2014-11-06

COUPLING

#168
20140261807
2014-09-18

Grease delivery receiver and nozzle having pressurization lockout and bleed down capture

#169
20140246616
2014-09-04

Medical connectors with fluid-resistant mating interfaces

#170
20140225365
2014-08-14

Coupling unit

#171
20140174577
2014-06-26

Male and female fluidic coupling with force reducing locking and unlocking

#172
20140150907
2014-06-05

Hydraulic coupling member with pressure-relieving poppet valve

#173
20140034149
2014-02-06

Hydraulic joint structure, hydraulically-actuated device including hydraulic joint structure, joint portion constituting hydraulic joint structure, hydraulic pressure generating unit including joint portion, end tool unit including joint portion, and hydraulic hose unit including joint portion

#174
20140026975
2014-01-30

Cartridge hydraulic coupler and method of use

#175
20130320668
2013-12-05

Coupling with automatic seal

#176
20130312846
2013-11-28

FLUID CONNECTOR FOR A COOLING SYSTEM

#177
20130292591
2013-11-07

Quick-release coupling

#178
20130291976
2013-11-07

QUICK-RELEASE COUPLING

#179
20130206261
2013-08-15

Quick-connect hydraulic coupling socket

#180
20130192800
2013-08-01

Cooling system with coolant circulation duct

#181
20130186495
2013-07-25

Fluid coupling

#182
20130160880
2013-06-27

Connector designed to removably connect two fluid channels

#183
20130025713
2013-01-31

Hydraulic coupling member with pressure-relieving poppet valve

#184
20130020517
2013-01-24

COUPLER

#185
20120286187
2012-11-15

Valve for Regulating the Flow of A Liquid

#186
20120241021
2012-09-27

COUPLING WITH SECONDARY VALVE STOP

#187
20120234415
2012-09-20

Coaxial quick coupling

#188
20120180891
2012-07-19

Male joint member for pipe joint

#189
20120161051
2012-06-28

Breakaway coupling assembly

#190
20120090713
2012-04-19

Grease delivery receiver and nozzle couplable without fluid pressure bleed-down and having pressurization lockout and flush face coupling

#191
20120025523
2012-02-02

QUICK JOINT IN HYDRAULIC PIPELINE

#192
20110266790
2011-11-03

Fluid coupling

#193
20110240159
2011-10-06

Hydrogen-Generating Fuel Cell Cartridges

#194
20110067225
2011-03-24

Hydraulic line connector

#195
20100327574
2010-12-30

Socket for pipe joint and pipe joint

#196
20100320747
2010-12-23

Socket for pipe joint and pipe joint

#197
20100308580
2010-12-09

Fluid passage connection device

#198
20100253070
2010-10-07

COUPLING WITH AUTOMATIC SEAL

#199
20100239948
2010-09-23

FUEL CELL SOCKET AND FUEL CELL USING SAME

#200
20100133457
2010-06-03

Coaxial coupling with by-pass valve and coupling mechanism with bayonette form

#201
20100051129
2010-03-04

Coupling member for pipe coupling

#202
20100025989
2010-02-04

CHEMICAL AND BIOLOGICAL CLEAN AIR CONNECTOR

#203
20090322076
2009-12-31

Clamping coupling element and a coupling including such an element

#204
20090289453
2009-11-26

Flat face, pipe coupling with spring-loaded shutoff sleeves to prevent spillage upon uncoupling

#205
20090289449
2009-11-26

Tube connector

#206
20090272450
2009-11-05

Plug for fluid-transfer coupling device

#207
20090229690
2009-09-17

Rigid mount anti-leak fluid coupler

#208
20090091124
2009-04-09

Female coupling element and a coupling including such an element

#209
20090033089
2009-02-05

Quick coupling element and a quick coupling including such an element

#210
20090029224
2009-01-29

LIQUID SEND/RECEIVE JOINT DEVICE AND FUEL CELL SYSTEM USING THE SAME

#211
20080290657
2008-11-27

Chemical and biological clean air connector

#212
20080233462
2008-09-25

Hydrogen-generating fuel cell cartridges

#213
20080067807
2008-03-20

Aseptic coupling devices

#214
20080067804
2008-03-20

Pipe joint

#215
20070289645
2007-12-20

Coaxial coupling

#216
20070274772
2007-11-29

Coupling element for removably joining pipes

#217
20070257485
2007-11-08

Quick coupling

#218
20070246108
2007-10-25

Quick-disconnect with pressure relief and a locking mechanism

#219
20070246107
2007-10-25

Coupling member of pipe coupling

#220
20070221277
2007-09-27

Faucet spout and diverter valve

#221
20070120361
2007-05-31

Quick release pipe connection

#222
20070102050
2007-05-10

Coaxial quick disconnect coupling

#223
20070035129
2007-02-15

Coupling assembly for a fluid-flow circuit

#224
20070025811
2007-02-01

Coupling Assembly with Overmold Sealing Structures and Method of Forming the Same

#225
20060243332
2006-11-02

Dual purpose alignment and fluid coupling

#226
20060174952
2006-08-10

Hydrogen-generating fuel cell cartridges

#227
20060138704
2006-06-29

Method of making molded coupler

#228
20060130910
2006-06-22

Quick coupling having pressure relief device for multiple pressurized lines

#229
20060102238
2006-05-18

Dual path hydraulic coupling

#230
20050230651
2005-10-20

Protection of a seal element

#231
20050116466
2005-06-02

Flat-surface quick coupling tubes extending between a pressurized fluid user device and a fluid feeding means

#232
20050115610
2005-06-02

Coupling for servicing a pressurized system

#233
20050081929
2005-04-21

Quick connection for removably joining two pipes and use of such a connection

#234
20050046178
2005-03-03

Tube joint

#235
20050001425
2005-01-06

Coupler and method of making molded coupler

#236
18773601
2025-09-23

Pipe coupling structure for fluid transportation system

#237
13738205
2015-12-22

Apparatus and system for engaging and disengaging quick-release couplings