Patents-Review.com
ClassID:

152986 ⎘

F16L21/022 - CPC Classification

Classification description:

Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings used with sleeves or nipples for pipes of the same diameter, or with reduction pieces

Recent Application in this class:
#1
20260153170
2026-06-04

CONDUIT COUPLER AND METHODS OF USE THEREOF

 #2
20260146691
2026-05-28

PIPE, PIPE CONNECTION AND PIPELINE SYSTEM

 #3
20260139771
2026-05-21

CONDUIT COUPLER AND METHODS OF USE THEREOF

 #4
20260036230
2026-02-05

Brittle Material Joints With Dynamic Sealing

 #5
20250137562
2025-05-01

CONDUIT COUPLER AND METHODS OF USE THEREOF

 #6
20250027589
2025-01-23

PIPE CONNECTORS

 #7
20240318751
2024-09-26

WIDE RANGE COUPLING

 #8
20240247741
2024-07-25

BRITTLE MATERIAL JOINTS WITH DYNAMIC SEALING

 #9
20240218948
2024-07-04

PRE-ASSEMBLED COUPLING ASSEMBLY WITH CAP

 #10
20240183471
2024-06-06

PRE-ASSEMBLED COUPLING ASSEMBLY WITH FLEXIBLE HOSE ADAPTER

 #11
20230383878
2023-11-30

PLUG CONNECTOR DEVICE AND PLUG CODING SYSTEM

 #12
20230375111
2023-11-23

SPLICE FOR JOINING EXPANDED TUBE TO UNEXPANDED TUBE

 #13
20230313922
2023-10-05

Adapter and method for connecting

 #14
20230279976
2023-09-07

SELF-SEALING FILL NIPPLE FOR PRESSURE REGULATOR

 #15
20230250908
2023-08-10

FEMALE FLUID CONNECTOR ELEMENT AND FLUID CONNECTOR COMPRISING SUCH AN ELEMENT

 #16
20230167929
2023-06-01

Pipe coupling gasket assembly

 #17
20230097233
2023-03-30

Coolant connecting piece, housing system and production thereof

 #18
20230008523
2023-01-12

Nipple assembly

 #19
20220399594
2022-12-15

Connector and connector assembly for multi-chamber profiles and/or conduits

 #20
20220268379
2022-08-25

Pre-assembled pipe coupling with an insertion boundary for axial receipt of pipe ends

 #21
20220099184
2022-03-31

Insert with sealing groove for engine block and systems, assemblies, components, and methods thereof

 #22
20220074527
2022-03-10

Pre-assembled coupling assembly with cap

 #23
20220042628
2022-02-10

Pre-assembled coupling assembly with flexible hose adapter

 #24
20210102647
2021-04-08

Wide range coupling

 #25
20210062941
2021-03-04

Duct coupler for use with ducts in a wet joint of segmental concrete construction

 #26
20200191302
2020-06-18

PIPE COUPLING

 #27
20200149666
2020-05-14

Extended range encapsulation shell

 #28
20200088330
2020-03-19

Pre-assembled pipe coupling with an insertion boundary for axial receipt of pipe ends

 #29
20200041048
2020-02-06

Pipe-fitting

 #30
20200032935
2020-01-30

Terminal component for plumbing configuration

 #31
20200003353
2020-01-02

Flange seal for pipe and repair of pipes

 #32
20190293211
2019-09-26

Pipe connecting apparatus

 #33
20190264843
2019-08-29

Pipe coupling

 #34
20190249966
2019-08-15

Component assembly for high-precision joining of components

 #35
20190203870
2019-07-04

Pipe coupling capsulation assembly with retaining elements

 #36
20190154175
2019-05-23

Coupling for forming a sealed joint between first and second tubular members

 #37
20190137016
2019-05-09

CONNECTING UNION JOINT WITH SMART CONNECTION OF EASY-FLOWING PIPE SYSTEM

 #38
20190032836
2019-01-31

Pipe repair coupling tool and method of use

 #39
20190032824
2019-01-31

Pre-assembled coupling assembly with flexible hose adapter

 #40
20190032823
2019-01-31

Pre-assembled coupling assembly with cap

 #41
20190017636
2019-01-17

Wide range coupling

 #42
20190011068
2019-01-10

Heat transfer interruption for improved fire resistance/proof performance

 #43
20180347729
2018-12-06

Seal for range of pipe diameters with interlocking layers

 #44
20180313478
2018-11-01

Piping connections and connection sockets

 #45
20180313475
2018-11-01

High temperature leak prevention for piping components and connections

 #46
20180245722
2018-08-30

System, method and apparatus for expansion coupling for pipes with sheathed grooves

 #47
20180238478
2018-08-23

Pipe connector systems, devices and methods

 #48
20180216764
2018-08-02

Showerhead adapter

 #49
20180202168
2018-07-19

Column cover reveal

 #50
20180087697
2018-03-29

Compression couplings

 #51
20180045345
2018-02-15

Pipe coupling having double-threaded tightening fastener and associated methods

 #52
20180031157
2018-02-01

Restrained plastic pipe joint and method of making same

 #53
20180010719
2018-01-11

Plastic seal fitting

 #54
20170350126
2017-12-07

Segmental duct coupler devices, systems, and methods

 #55
20170328503
2017-11-16

Restrained plastic pipe joint and method of making same

 #56
20170321829
2017-11-09

Method for forming inline triple wall coupling connector

 #57
20170291717
2017-10-12

Composite tubes for a fluid transport system

 #58
20170184228
2017-06-29

System having fitting with floating seal insert

 #59
20170152972
2017-06-01

Coupling assembly

 #60
20170146164
2017-05-25

Pipe coupling

 #61
20170059070
2017-03-02

Foldable seal for range of pipe diameters

 #62
20170051854
2017-02-23

Pipe coupling having double-threaded tightening fastener and associated methods

 #63
20170030505
2017-02-02

Pipe sealing apparatus and method

 #64
20160281890
2016-09-29

Transition gasket

 #65
20160223110
2016-08-04

Device and method for forming pipe elements

 #66
20160178097
2016-06-23

Pipe coupling

 #67
20160084412
2016-03-24

COUPLING BARREL AND METHODS OF PRODUCING THEREOF

 #68
20150377393
2015-12-31

Hydraulic connecting bush, hydraulic connection, and hydraulic plug

 #69
20150354737
2015-12-10

Coupling using sealant for sealing secured components

 #70
20150316184
2015-11-05

ASSEMBLY WITH SEPARATELY TIGHTENABLE ANNULAR CLAMPS

 #71
20150292657
2015-10-15

Coupling for joining ductile iron and plastic pipes

 #72
20150285417
2015-10-08

Slip-on coupling

 #73
20150219256
2015-08-06

Coupling with uniform circumferential tightening

 #74
20150054275
2015-02-26

Positive seal coupling system

 #75
20150047176
2015-02-19

Positive seal coupling system

 #76
20150021910
2015-01-22

Split-ring gland pipe coupling with corrugated armor

 #77
20140260480
2014-09-18

Methods for manufacture of pipe element having shoulder, groove and bead

 #78
20140210206
2014-07-31

Pipe element having shoulder, groove and bead

 #79
20140140118
2014-05-22

Connection structure and inverter

 #80
20140117665
2014-05-01

Pipe coupling

 #81
20140091533
2014-04-03

Plug-in piece

 #82
20140001754
2014-01-02

Connecting device of large-diameter compressed air conveying pipe

 #83
20130300112
2013-11-14

Turbulence free ring

 #84
20130193685
2013-08-01

Split-ring gland pipe coupling with corrugated armor and annular gasket having pressure assist slot

 #85
20130187379
2013-07-25

Slip-on coupling

 #86
20130181444
2013-07-18

Splicing ring for tubular high-pressure fluid conduits

 #87
20130154259
2013-06-20

Clamp assembly with annular clamps and bridge

 #88
20130119616
2013-05-16

Split-ring gland pipe coupling with corrugated armor

 #89
20130111732
2013-05-09

Split-ring gland pipe coupling with corrugated armor

 #90
20130055780
2013-03-07

Spin forming method

 #91
20130038028
2013-02-14

Seal and associated sealing arrangement

 #92
20120299294
2012-11-29

Multilayer annular clamp

 #93
20120299293
2012-11-29

ASSEMBLY WITH SEPARATELY TIGHTENABLE ANNULAR CLAMPS

 #94
20120260488
2012-10-18

FLANGE CONNECTOR AND GASKET ASSEMBLY

 #95
20120217745
2012-08-30

Flanges for watertight coupling of smooth surface pipes

 #96
20120217743
2012-08-30

PIPE COUPLING ASSEMBLY WITH SLEEVE LOCKING TABS AND ASSOCIATED METHODS

 #97
20120205909
2012-08-16

Split-ring gland pipe coupling with corrugated armor

 #98
20120139236
2012-06-07

Pipe element having shoulder, groove and bead and methods and apparatus for manufacture thereof

 #99
20110210546
2011-09-01

Pipe clamp with sleeve and gasket

 #100
20110133446
2011-06-09

Packing

 #101
20110095520
2011-04-28

PIPE COUPLING WITH SEAL PRESSING DEVICE

 #102
20110074116
2011-03-31

COLLAPSIBLE EXPANSION MECHANISM FOR EFFECTING A SEAL

 #103
20110062706
2011-03-17

Seal having projections and coupling having pockets

 #104
20110052335
2011-03-03

TUBING SYSTEM

 #105
20110031737
2011-02-10

Pipe coupling with auxiliary clamp

 #106
20100314864
2010-12-16

Pipe coupling

 #107
20100219630
2010-09-02

COUPLING ASSEMBLY FOR FLUID LINES

 #108
20100187810
2010-07-29

ARRANGEMENT FOR CONNECTING TUBE ELEMENTS IN A VENTILATION DUCT SYSTEM

 #109
20100164221
2010-07-01

Pipe Coupling

 #110
20100130119
2010-05-27

ARRANGEMENT FOR CONNECTING TUBE ELEMENTS IN A VENTILATION DUCT SYSTEM

 #111
20100066077
2010-03-18

Pipe joint design

 #112
20100025982
2010-02-04

COUPLING, JOINT AND METHOD FOR FIXEDLY AND SEALINGLY SECURING COMPONENTS TO ONE ANOTHER

 #113
20100007137
2010-01-14

Pipe coupling with built-in grip

 #114
20090278321
2009-11-12

INTERNAL PIPE SEAL

 #115
20090267307
2009-10-29

High Pressure Tube Seal

 #116
20090160183
2009-06-25

Device for connecting two pipes with different external diameters

 #117
20090140520
2009-06-04

Pipe coupling with built-in grip

 #118
20080231047
2008-09-25

Pipe connecting device

 #119
20080211229
2008-09-04

Angle key pipe coupling

 #120
20070273151
2007-11-29

Cast flange for pipe couplings

 #121
20070145739
2007-06-28

Tubing system

 #122
20060214423
2006-09-28

Sealing gasket for ventilation duct system

 #123
20060157972
2006-07-20

Inside reducing pipe bushing

 #124
20060061090
2006-03-23

Pipe seal element

 #125
20050269540
2005-12-08

Bottoms drainage valves designed in particular for enamelled containers

 #126
20050099003
2005-05-12

Gasket for acid waste couplings

 #127
18941041
2025-02-18

Seal component for fluid distribution system

 #128
15342276
2017-05-30

Press fitting device, components and method

 #129
13665269
2014-06-17

Roof vent pipe extension system