ClassID:

152947

F16L19/0218 - CPC Classification

Classification description:

Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts; Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings

Recent Application in this class:
#1
20260139770
2026-05-21

Pipe Joint Assemblies

#2
20260043499
2026-02-12

PIPE BELL END REINFORCING DEVICE PIPE STOP

#3
20250389356
2025-12-25

SYSTEM AND METHOD FOR COUPLING PIPES

#4
20250389355
2025-12-25

PIPE COUPLINGS HAVING INSTALLATION INDICATORS

#5
20250383038
2025-12-18

FLUID-TIGHT HOSE CONNECTION

#6
20250369541
2025-12-04

DUAL SEALING FOR HIGH PRESSURE GASEOUS FUELS

#7
20250305602
2025-10-02

VALVE CONNECTOR

#8
20250305601
2025-10-02

CHAMFER RING FOR PIPE COUPLING

#9
20250305591
2025-10-02

VALVE CONNECTOR

#10
20250164045
2025-05-22

FLEXIBLE GAS LINE RISER

#11
20250155057
2025-05-15

Pipe Fitting Seal and Pipe Connecting Structure

#12
20250075832
2025-03-06

MINING HOSE CONNECTING DEVICE AND METHOD

#13
20250052343
2025-02-13

CORRUGATED PIPE CONNECTION DEVICE

#14
20240418303
2024-12-19

Semiconductor gas pipe fitting fastener

#15
20240318753
2024-09-26

Flow control structure of water hose joint

#16
20240288102
2024-08-29

PIPE

#17
20240280195
2024-08-22

HAMMER UNION

#18
20240247740
2024-07-25

PIPE DETACHMENT PREVENTING DEVICE FOR UNION NUT PIPE FITTING

#19
20240200698
2024-06-20

PIPE JOINT

#20
20240175524
2024-05-30

Annular groove assembly for o-ring face seal and related method of use

#21
20240117905
2024-04-11

Wide Range Coupling Assembly

#22
20240117904
2024-04-11

SEALING RING AND PIPE CONNECTION

#23
20240117619
2024-04-11

Modular grid

#24
20240060639
2024-02-22

BOILER BURNER RIGID LANCE

#25
20240035596
2024-02-01

Screw part having annular cross-section

#26
20240019053
2024-01-18

KNIFE-EDGE FLANGE JOINT ASSEMBLIES

#27
20230408002
2023-12-21

High temperature remotely connected/disconnected pipe connector for molten salt reactors

#28
20230332720
2023-10-19

Fitting, fitting assembly, and torque adaptor

#29
20230096808
2023-03-30

Fluid joint assembly adjustable from primary to backup sealing state and fluid connector for same

#30
20230022978
2023-01-26

Annular groove assembly for O-ring face seal and related method of use

#31
20230010738
2023-01-12

Flowline quick connector assembly

#32
20230008143
2023-01-12

Flowline quick connector assembly

#33
20220356971
2022-11-10

JOINT PIPE

#34
20220316624
2022-10-06

Riser support assembly

#35
20220299134
2022-09-22

FITTING DEVICE FOR MAKING CONNECTION TUBE THAT CAN FINE POSITION ADJUSTMENT OF THE TUBE

#36
20220266374
2022-08-25

Mounting attachment, use and method of manufacture

#37
20220260187
2022-08-18

Hammer union

#38
20220252190
2022-08-11

CONNECTION STRUCTURE OF METAL CORRUGATED PIPE

#39
20220243846
2022-08-04

ROTATIONAL FITTING FOR LOW PURITY, HIGH PURITY, AND ULTRA HIGH PURITY GAS LINES OR PROCESS COOLING AND CRITICAL PROCESS COOLING WATER SYSTEMS

#40
20220235886
2022-07-28

CONNECTOR CAPABLE OF STABLY CONNECTING FLUID PIPELINE

#41
20220128180
2022-04-28

Transition Adapter

#42
20220025996
2022-01-27

Conversion adapter and fitting with the same

#43
20220018473
2022-01-20

SYSTEM AND METHOD FOR COUPLING PIPES

#44
20210364108
2021-11-25

Hygienic coupling system

#45
20210346681
2021-11-11

Conduit forming unit and tube joint

#46
20210324980
2021-10-21

Joint restraint device

#47
20210317931
2021-10-14

HAMMERLESS AND TORQUELESS UNION CONNECTION AND METHOD

#48
20210231242
2021-07-29

Apparatus and methods to prevent particle entry into gas lines

#49
20210180717
2021-06-17

Threaded type valve connector

#50
20210148494
2021-05-20

Shrouded coupling

#51
20210138375
2021-05-13

Modular filtration system and method

#52
20210123547
2021-04-29

Adjustable riser support assembly

#53
20200326021
2020-10-15

HOSE CONNECTOR

#54
20200232587
2020-07-23

Formed pipe end-section of a pipeline and pipe screw-connection

#55
20200158264
2020-05-21

Adjustable riser support assembly

#56
20200149665
2020-05-14

Coupling for fluid conduits

#57
20200141102
2020-05-07

QUICK CONNECT DEVICE AND ASSEMBLY FOR USE WITH A TOILET FILL VALVE

#58
20200049281
2020-02-13

Fluid coupling

#59
20200003346
2020-01-02

No contact connectors

#60
20200001683
2020-01-02

Air conditioning fitting with axial and radial elastomeric sealing element and metal to metal taper saddle

#61
20190390801
2019-12-26

Pipe coupling

#62
20190338873
2019-11-07

Hammer union connection and related methods of assembly

#63
20190331263
2019-10-31

COUPLING ARRANGEMENT FOR SCREW COUPLING

#64
20190309881
2019-10-10

Fitting device for making connection tube that can fine position adjustment of the tube

#65
20190293178
2019-09-26

Seal structure, sealing method, and coupling equipped with said seal structure

#66
20190264844
2019-08-29

Zero dead volume fitting assembly

#67
20190195401
2019-06-27

SEALING RING

#68
20190162337
2019-05-30

PIPE JOINT

#69
20190128451
2019-05-02

Sealing assembly with retention sleeve for fluid conduit connector

#70
20190086004
2019-03-21

Arrangement for fluid-sealing connection of lines

#71
20190040980
2019-02-07

COMPONENT RETAINING STRUCTURE FOR CONDUIT FITTING

#72
20190040979
2019-02-07

Conduit fitting suited for wet locations

#73
20180363814
2018-12-20

Tube connecting device

#74
20180356016
2018-12-13

Hydraulic tube connector for vehicle

#75
20180347731
2018-12-06

Metal sealing threaded (tube-o) fitting

#76
20180306354
2018-10-25

Joint restraint device

#77
20180299042
2018-10-18

Gasket for fluid coupling, and fluid coupling

#78
20180238477
2018-08-23

Fluid coupling and method of assembly

#79
20180163904
2018-06-14

High pressure flowline union

#80
20180156367
2018-06-07

Encapsulation sleeve gasket assembly with removable inner layer

#81
20180156366
2018-06-07

Sanitary line attachment

#82
20180106408
2018-04-19

Connection device for pipes in general

#83
20170363235
2017-12-21

No contact connectors

#84
20170350545
2017-12-07

PIPELINE FITTING WITH VIBRATION COMPENSATOR

#85
20170314336
2017-11-02

Enhanced union connection

#86
20170276269
2017-09-28

PIPE CONNECTOR

#87
20170268706
2017-09-21

High-pressure resistant screw connection for pipe or hose lines with a tapered thread

#88
20170268705
2017-09-21

Flexible joint

#89
20170241578
2017-08-24

Pipe connecting device

#90
20170184228
2017-06-29

System having fitting with floating seal insert

#91
20170120429
2017-05-04

Precision connections and methods of forming same

#92
20170120403
2017-05-04

Fitting assembly evaluating apparatus and methods

#93
20170051852
2017-02-23

Fluid connector with annular groove and seal

#94
20160356408
2016-12-08

Face sealed fittings

#95
20160348814
2016-12-01

Joint unit

#96
20160305587
2016-10-20

Seal assembly for a hammer union, and a metal gasket and a receiving portion for use in said seal assembly

#97
20160281890
2016-09-29

Transition gasket

#98
20160258560
2016-09-08

JOINT FOR HIGH-PRESSURE PIPES AND JOINT STRUCTURE

#99
20160169425
2016-06-16

Conduit fitting with torque collar

#100
20160138739
2016-05-19

SEAL RING STRUCTURE FOR HIGH-PRESSURE PIPE JOINT

#101
20150308593
2015-10-29

Plumbing fitting adapter

#102
20150292658
2015-10-15

Screw connection device for connecting two pipes

#103
20150252923
2015-09-10

Fluid coupling and retainer for fluid coupling

#104
20150233502
2015-08-20

Fitting assembly evaluating apparatus

#105
20150233501
2015-08-20

TOROIDAL SEAL AND METHOD FOR THE SEALING OF PIPES

#106
20150226355
2015-08-13

Hammer union connection and related methods of assembly

#107
20150211561
2015-07-30

Clamp for sanitary fitting

#108
20150115603
2015-04-30

SEAL FITTING WITH O-RING

#109
20150101165
2015-04-16

Fitting assembly evaluating apparatus

#110
20150048615
2015-02-19

Seal surface configuration for fluid system components

#111
20140345736
2014-11-27

Tube fitting with integrated seal

#112
20140125056
2014-05-08

Screw connection device for connecting the flared ends of two pipes

#113
20140116552
2014-05-01

Hose nipple and corresponding hose arrangement

#114
20140110937
2014-04-24

Pipe joint

#115
20140054888
2014-02-27

Hammer union assembly, hammer union seal therefor and method of constructing a hammer union seal

#116
20140042742
2014-02-13

COMBINATION OF THIN-WALLED PIPE AND JOINT, AND METHOD FOR FORMING THE SAME

#117
20130313824
2013-11-28

Extreme temperature device for flat face seal fitting

#118
20130299726
2013-11-14

Joint

#119
20130277964
2013-10-24

Coupling

#120
20130154253
2013-06-20

Fluid coupling

#121
20120306163
2012-12-06

SEAL AND HOUSING HAVING SUCH A SEAL

#122
20120227221
2012-09-13

Clamp for sanitary fitting

#123
20120223521
2012-09-06

ASYMMETRICAL MULTI-LOBED ANNULAR SEAL FOR A CONNECTOR ASSEMBLY OF A VEHICLE

#124
20120091707
2012-04-19

Anti-Expansion and Anti-Seismic Pipe Fitting

#125
20120090700
2012-04-19

PIPING SUPPORT, SYSTEM, AND METHOD FOR USE

#126
20120073323
2012-03-29

Refrigeration system connection fitting

#127
20120032438
2012-02-09

High pressure fitting for hydrogen applications

#128
20110302762
2011-12-15

Fitting assembly evaluating apparatus and methods

#129
20110253667
2011-10-20

Expansion seal, especially for gases

#130
20110133415
2011-06-09

Ring seal and retainer assembly

#131
20110121566
2011-05-26

Glueless plumbing union

#132
20110121515
2011-05-26

Minimal thickness, double-sided flange for insertion between two ultra-high vacuum flanges

#133
20110031745
2011-02-10

Fluid coupling and retainer for fluid coupling

#134
20100213705
2010-08-26

Conduit fitting with torque collar

#135
20100140920
2010-06-10

Pipe joint including a pipe and method for producing a joint section of a pipe joint

#136
20100127493
2010-05-27

CONNECTING ARRANGEMENT FOR A PIPE UNION

#137
20090299514
2009-12-03

Fitting assembly evaluating apparatus

#138
20090293975
2009-12-03

Fluid shut-off device

#139
20090258143
2009-10-15

REAGENT DISPENSING APPARATUS AND DELIVERY METHOD

#140
20090255466
2009-10-15

REAGENT DISPENSING APPARATUS AND DELIVERY METHOD

#141
20090026716
2009-01-29

Soft insert gasket

#142
20080296398
2008-12-04

Systems and methods for spraying water and mixtures of water and other materials

#143
20080191426
2008-08-14

Ring seal and retainer assembly

#144
20070096465
2007-05-03

High pressure connection

#145
20060273582
2006-12-07

Flexible Hose Assembly for Fuel Cell Applications

#146
20060152001
2006-07-13

Parts for fluid

#147
20060145473
2006-07-06

Hose coupling

#148
20060076774
2006-04-13

High pressure quick connect coupling and seal

#149
20060070437
2006-04-06

Gasket arrangement for sanitary process flow meter

#150
20050275222
2005-12-15

Gasket for a fluid connection

#151
20050267443
2005-12-01

Medical device with high pressure quick disconnect handpiece

#152
20050230650
2005-10-20

Irrigation valve assembly

#153
20050225084
2005-10-13

Fluid coupling

#154
20050179259
2005-08-18

Pipe joint

#155
20050093294
2005-05-05

Flexible hose assembly for fuel cell applications

#156
20050082829
2005-04-21

Metal ring gasket for a threaded union

#157
20050035557
2005-02-17

Minimal thickness, double-sided flanges for ultra-high vacuum components

#158
20050017509
2005-01-27

Sealing mechanism

#159
19012665
2026-02-10

Dielectric union and method of assembling the same

#160
18818065
2026-01-20

Fitting

#161
15467845
2018-05-08

Pipe joint structure

#162
15149076
2018-11-13

Enhanced seal

#163
14081457
2015-08-18

Tool apparatus for use with a conduit union