ClassID:

153543

F16L2201/20 - CPC Classification

Classification description:

Special arrangements for pipe couplings Safety or protective couplings

Recent Application in this class:
#1
20260071707
2026-03-12

BREAKAWAY VALVE FOR A CRYOGENIC FLUID TANK

#2
20260061178
2026-03-05

FLUID CONNECTOR ASSEMBLY WITH NEUTRAL FLUID DISPLACEMENT THAT LIMITS CONNECTOR DAMAGE

#3
20260059701
2026-02-26

NODE ISOLATION DEVICES, SYSTEMS AND METHODS

#4
20260055840
2026-02-26

FLUID CONNECTION ASSEMBLY WITH CONNECTION PREVENTION ELEMENT

#5
20260043496
2026-02-12

PIPE CLAMPING APPLIANCE AND PIPE CLAMPING METHOD

#6
20260009485
2026-01-08

FLUID COUPLINGS

#7
20250341257
2025-11-06

ENCAPSULATED SYSTEM FOR PRESSURIZED FLUID PROCESSES

#8
20250264175
2025-08-21

LOCK OUT TAG OUT FOR QUICK DISCONNECT

#9
20250251070
2025-08-07

QUICK RELEASE CONNECTOR WITH SAFETY BUTTON

#10
20250216014
2025-07-03

SEPARABLE BI-DIRECTIONAL CHECK VALVE ASSEMBLY

#11
20250207704
2025-06-26

CONNECTOR COUPLING ASSEMBLY WITH RELIEF CUTS

#12
20250161893
2025-05-22

CHEMICAL INJECTION SYSTEM FOR CONNECTION TO A CHEMICAL TANK AND A PROCESS LINE

#13
20250129879
2025-04-24

SEISMIC PIPE JOINT

#14
20250122963
2025-04-17

Coupling

#15
20250084947
2025-03-13

Secondary containment for operable valves

#16
20240426407
2024-12-26

DIELECTRIC RING GASKETS AND RELATED METHODS AND ASSEMBLIES FOR DETECTING INTERNAL CURRENT TRANSFER IN A PIPELINE

#17
20240420300
2024-12-19

SYSTEM AND METHOD FOR DETECTING FAILURES IN A SAFETY COUPLING

#18
20240337334
2024-10-10

SECONDARY RETENTION FOR ADHESIVE BONDED JOINTS

#19
20240328546
2024-10-03

Anti-Disassembly Connector

#20
20240325806
2024-10-03

PIPE ARRANGEMENT CONSISTING OF A PIPE OR A PIPE JOINT

#21
20240229999
2024-07-11

COUPLING DEVICE FOR FLUID LINES

#22
20240216879
2024-07-04

Chemical injection system for connection to a chemical tank and a process line

#23
20240209977
2024-06-27

IMPROVED INSULATED COUPLING

#24
20240209967
2024-06-27

Pipe fitting apparatus providing easy locking with appropriate torque

#25
20240151339
2024-05-09

FLUID CONNECTOR ASSEMBLY WITH NEUTRAL FLUID DISPLACEMENT THAT LIMITS CONNECTOR DAMAGE

#26
20240133499
2024-04-25

Coupling device for fluid lines

#27
20240117911
2024-04-11

EMERGENCY RELEASE AND COUPLING DEVICE

#28
20240084941
2024-03-14

EMERGENCY COUPLING AND RELEASE DEVICE

#29
20240077154
2024-03-07

MODULAR END APPARATUS AND METHODS FOR FLEXIBLE HOSES

#30
20230358321
2023-11-09

ENCAPSULATED SYSTEM FOR PRESSURIZED FLUID PROCESSES

#31
20230323987
2023-10-12

Detachable anti-vibration sealing protection device for pipe flange

#32
20230313922
2023-10-05

Adapter and method for connecting

#33
20230288003
2023-09-14

Connection units for quick connection/disconnection fluidic lines

#34
20230279978
2023-09-07

High Pressure Conduit Connector and Safety Conduit System Including Same

#35
20230243447
2023-08-03

ASEPTIC FLUID COUPLINGS

#36
20230234825
2023-07-27

Valve interconnector

#37
20230200345
2023-06-29

AUTOMATED TEAT DIP FLUID MANIFOLD

#38
20230175632
2023-06-08

Coupler and clean connection device having the same

#39
20230175617
2023-06-08

Valve package for HVAC system

#40
20230173439
2023-06-08

Chemical injection system for connection to a chemical tank and a process line

#41
20230121701
2023-04-20

FLUID COUPLINGS

#42
20230113653
2023-04-13

Coupling seal for pipe liners

#43
20230061814
2023-03-02

Fluid pipe connection

#44
20230060911
2023-03-02

Connector cover and methods

#45
20230025594
2023-01-26

Locking fitting for a fluid coupling

#46
20230021378
2023-01-26

Unisex ball valve coupling with safety locking mechanism

#47
20220403960
2022-12-22

Clamp with depressions in an insert

#48
20220356955
2022-11-10

Encapsulated system for pressurized fluid processes

#49
20220299121
2022-09-22

Encapsulated system for pressurized fluid processes

#50
20220163152
2022-05-26

Pipe joint

#51
20220079108
2022-03-17

Automated milking system safety valve arrangement

#52
20210404582
2021-12-30

Fluid line quick connector with spacer having angled surface(s)

#53
20210404581
2021-12-30

Connection device

#54
20210404579
2021-12-30

Modular end apparatus and methods for flexible hoses

#55
20210396338
2021-12-23

Emergency release mechanism for fluid loading equipment

#56
20210364104
2021-11-25

Protection structure of sampling tube of tank truck

#57
20210341089
2021-11-04

FLUID COUPLING SYSTEM

#58
20210317882
2021-10-14

Coupling system and method of use thereof

#59
20210310588
2021-10-07

Fluid coupling nuts and tools therefor

#60
20210308639
2021-10-07

Chemical injection system for connection to a chemical tank and a process line

#61
20210254771
2021-08-19

Johnston coupling with galvanic separation

#62
20210239250
2021-08-05

Fluid coupling

#63
20210199220
2021-07-01

Aseptic fluid couplings

#64
20210198591
2021-07-01

Composition, and threaded connection for pipes or tubes including lubricant coating layer formed from the composition

#65
20210190250
2021-06-24

Coupling with pressure relief

#66
20210190248
2021-06-24

Connect under pressure coupling assembly

#67
20210131593
2021-05-06

METHOD OF CONTROLLING HOSES AND PIPES THAT BECOME DISCONNECTED UNDER PRESSURE

#68
20210123554
2021-04-29

Hose coupling guard

#69
20210108750
2021-04-15

Coupling, and method for transferring fluids

#70
20210041053
2021-02-11

Seismic pipe joint

#71
20210033203
2021-02-04

Encapsulated system for pressurized fluid processes

#72
20200386352
2020-12-10

Cap loosening prevention device

#73
20200370696
2020-11-26

Line Connector

#74
20200360749
2020-11-19

Pipe arrangement consisting of a pipe or a pipe joint

#75
20200340608
2020-10-29

Quick connector with semi-integrated cartridge

#76
20200332937
2020-10-22

Coupling element for a hydraulic coupling

#77
20200318763
2020-10-08

Connection device

#78
20200256488
2020-08-13

Pipe Joint Restraint

#79
20200248856
2020-08-06

Latch mechanism for multi-coupling

#80
20200240566
2020-07-30

Fitting for preventing distortion

#81
20200149670
2020-05-14

Coupling element for connecting a first fluid-conducting line to a second fluid-conducting line, and coupling assembly

#82
20200096144
2020-03-26

UNIVERSAL PROTECTOR FOR GARDEN HOSE ENDS

#83
20200049267
2020-02-13

Connector with flange for limiting buckle propagation comprising a differential pressure valve for underwater fluid-transport pipe

#84
20200032940
2020-01-30

Safety system for cam lock couplings

#85
20200003349
2020-01-02

Fluid supply apparatus

#86
20190338877
2019-11-07

Quick coupling device

#87
20190234548
2019-08-01

Double cam levers and safety lock for cam lock fitting

#88
20190178758
2019-06-13

Pipe core sampling and tapping apparatus

#89
20190162340
2019-05-30

Waste-gas line for a battery in an aircraft

#90
20190154065
2019-05-23

Multi-couplings plate and ensemble of plates comprising such a multi-couplings plate

#91
20190133069
2019-05-09

Automated teat dip fluid manifold

#92
20190133067
2019-05-09

Automated milking system safety valve arrangement

#93
20190128455
2019-05-02

Diesel fuel cross-drop prevention kit

#94
20190113159
2019-04-18

Sealing device and medical device with at least one sealing device

#95
20190107234
2019-04-11

Anti-tamper permanent quick connect coupling device

#96
20190086012
2019-03-21

Quick disconnect coupling

#97
20190056052
2019-02-21

COOLING DEVICE FOR HIGH TEMPERATURE PIPE

#98
20190032830
2019-01-31

Double cam levers and safety lock for cam lock fitting

#99
20190003628
2019-01-03

Coupling sleeve for a hydraulic coupling

#100
20180356015
2018-12-13

Pipe union assembly

#101
20180347739
2018-12-06

TUBULAR QUICK COUPLING COMPRISING DIVISIBLE RING FOR SECURE FLUID CONNECTION

#102
20180340636
2018-11-29

Tubular connecting arrangement and method of sealingly connecting tubulars

#103
20180296817
2018-10-18

Single-use aseptic fluid couplings

#104
20180266587
2018-09-20

Clamp

#105
20180252345
2018-09-06

Connection unit

#106
20180112807
2018-04-26

PLUG CONNECTION FOR FLUID LINES, INCLUDING A RETAINING PART AND A SECONDARY LOCK

#107
20180106407
2018-04-19

Coupler assembly that compensates for misalignment

#108
20180106404
2018-04-19

Earthquake-resistant flexible slip joint apparatus

#109
20180066778
2018-03-08

Self sealing end fitting

#110
20180058618
2018-03-01

Tubing Connector for Decreased Contamination

#111
20180045356
2018-02-15

Safety system

#112
20180003305
2018-01-04

Encapsulated system for pressurized fluid processes

#113
20170363239
2017-12-21

Quick connector

#114
20170328504
2017-11-16

High-pressure quick-disconnect connector with automatic pressure-based lockout control

#115
20170284582
2017-10-05

QUICK CONNECT FLUID CONDUIT CONNECTOR HAVING LATCH WITH INTEGRAL SPRING ARMS FOR BUTTON RELEASE

#116
20170248260
2017-08-31

Hose connector and automotive component part incorporated with hose connector

#117
20170248258
2017-08-31

Pipe coupler

#118
20170205008
2017-07-20

Tee lock—lockout device

#119
20170191595
2017-07-06

Fluid coupling and method

#120
20170159867
2017-06-08

Pipe restraint and shield

#121
20170146166
2017-05-25

Connecting tubular members

#122
20170138521
2017-05-18

Coupling

#123
20170130884
2017-05-11

Safety lock for cam lock fitting

#124
20170069992
2017-03-09

Fluid conduit

#125
20170059441
2017-03-02

System and method for detection of hydrocarbon leakage from an underwater pipeline in a body of water and hydrocarbon extraction unit

#126
20170059076
2017-03-02

Coupling device

#127
20170037991
2017-02-09

Fluid connectors with connection state sensing

#128
20160334041
2016-11-17

Cam and groove coupling with locking wire mechanism

#129
20160305574
2016-10-20

Single use aseptic fluid couplings

#130
20160273692
2016-09-22

Blast activated quick-disconnect apparatus

#131
20160273686
2016-09-22

Quick connector for hydraulic hose coupling

#132
20160208963
2016-07-21

Loosening-preventing device for pipe fitting

#133
20160201825
2016-07-14

Tee lock—lockout device

#134
20160161032
2016-06-09

Safety lock for a gate valve

#135
20160076679
2016-03-17

Secure fluid connection

#136
20160047503
2016-02-18

Nozzle and keyed flush face receiver

#137
20160046479
2016-02-18

Nozzle and keyed flush face receiver

#138
20150377392
2015-12-31

Connection joint for pipes to convey gas, compressed air and other fluids

#139
20150362108
2015-12-17

Movement-constraining assembly for fluid-conveying system

#140
20150323108
2015-11-12

Tubular connecting arrangement and method of sealingly connecting tubulars

#141
20150316087
2015-11-05

Locking and ratcheting connector

#142
20150308591
2015-10-29

Security adapter

#143
20150276114
2015-10-01

Fluid transfer coupling

#144
20150176732
2015-06-25

Assembly including two pipe lengths assembled with an interface joint

#145
20150167876
2015-06-18

HOSE END-FITTINGS

#146
20150157845
2015-06-11

Line separation protector

#147
20150130181
2015-05-14

Single lock and double lock couplings having a locking ring with identifying indicia and methods of use and assembly

#148
20150076815
2015-03-19

Quick connect fluid conduit connector having latch with integral spring arms for button release

#149
20150059862
2015-03-05

Closure fitting for containment piping

#150
20140131991
2014-05-15

Cover for pipe connection

#151
20140124689
2014-05-08

Hydraulic cross connection provided with security quick fasteners, related kit of accessories, and related hydraulic system

#152
20140062080
2014-03-06

High-pressure quick-disconnect connector with automatic pressure-based lockout control

#153
20140056666
2014-02-27

Self-locking sealing device

#154
20130282047
2013-10-24

Safety connector assembly

#155
20130160880
2013-06-27

Connector designed to removably connect two fluid channels

#156
20120316537
2012-12-13

SAFETY CONNECTOR APPARATUS

#157
20120284980
2012-11-15

Supply stop with connection verification

#158
20120242077
2012-09-27

Hose Coupling and Protective Hose

#159
20120161435
2012-06-28

Quick connector

#160
20110254265
2011-10-20

Hydraulic connection assembly with pressure discharge control

#161
20110244372
2011-10-06

Fuel Supply with Improved Connecting Valve

#162
20110088790
2011-04-21

Bias release cartridge

#163
20110084476
2011-04-14

Pipe connector cover

#164
20110068573
2011-03-24

PIPE JOINT

#165
20100310211
2010-12-09

SYSTEMS AND METHODS FOR INSTALLATION OF DEVICES AROUND AN ELEMENT

#166
20100253073
2010-10-07

Safety Lock for Cam Lock Fitting

#167
20100052310
2010-03-04

Quick connect coupler with differential locking

#168
20100001517
2010-01-07

Fluid-transfer coupling device

#169
20090315327
2009-12-24

Anti-rotation locking device for tube unions

#170
20090293242
2009-12-03

Clip for pin retention

#171
20090273183
2009-11-05

Safety quick-connect coupling for assembling two pipes

#172
20090272450
2009-11-05

Plug for fluid-transfer coupling device

#173
20090108580
2009-04-30

Plug-in coupling for fluidic systems

#174
20090029224
2009-01-29

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

#175
20080233457
2008-09-25

Fuel Supply with Improved Connecting Valve

#176
20080157525
2008-07-03

Pipe joint unit and method of manufacturing the same

#177
20080077176
2008-03-27

Safety connector assembly

#178
20080077063
2008-03-27

Safety connector apparatus

#179
20080053548
2008-03-06

PLASTIC TUBING INSTALLATION ORGANIZATION SYSTEM

#180
20080042439
2008-02-21

Electrostatic discharge solution for angled fuel port of a fuel pump

#181
20080042430
2008-02-21

Joint Hose Slippage Prevention Apparatus

#182
20080001398
2008-01-03

Fluid coupling assembly

#183
20070246108
2007-10-25

Quick-disconnect with pressure relief and a locking mechanism

#184
20060175831
2006-08-10

Fluid quick connect contamination cover

#185
20050264003
2005-12-01

Pipe joint assembly

#186
20050194781
2005-09-08

Connectors with adjustable elements to prevent undesired coupling of adjacent conduits

#187
20050109406
2005-05-26

Zero flow fireproof quick disconnect coupling

#188
19050307
2026-01-13

Pressure relief structure for floating joint

#189
19005516
2025-10-07

Joint assembly and faucet

#190
18665164
2024-12-31

Remote disconnection of utility lines in offshore well operations

#191
17535890
2023-05-09

Steam deflector shield

#192
16549596
2020-02-11

Ergonomic safety lock for cam lock fitting