F16L55/128 - CPC Classification Index

ClassID:

153396 ⎘

F16L55/128 - CPC Classification

Classification description:

Devices or appurtenances for use in, or in connection with, pipes or pipe systems; Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable introduced axially into the pipe or hose

Sub-classes:

F16L55/1283 » {Plugging pig} 72
F16L55/1286 » {The closing device being a cap} 9
F16L55/13 » the closure device being a plug fixed by plastic deformation 41
F16L55/132 » the closure device being a plug fixed by radially deforming the packing 98
F16L55/136 » the closure device being a plug fixed by radially expanding or deforming a split ring, hooks or the like 63

Recent Application in this class:

20260085780

2026-03-26

DEVICE FOR INSERTING A LEAK CONTROL PLUG INTO A LEAK, LEAK CONTROL PLUG NUT, AND METHOD FOR INSERTING A LEAK CONTROL PLUG IN A LEAK

20240142035

2024-05-02

Conduit Bore Plugging Tool

20230332726

2023-10-19

MECHANICAL PLUG

20220260193

2022-08-18

CONDUIT SECURITY TECHNIQUES

20210364117

2021-11-25

Mechanical plug

20210215018

2021-07-15

Method for replacing a chemical injection valve connected to a well head via an injection line housing and injection line plugging tool

20210018132

2021-01-21

Segment isolation of internal pipe wall

20200240568

2020-07-30

Conduit locking device

20200217823

2020-07-09

SEALING ASSEMBLY AND PLUG FOR NON-DESTRUCTIVE INSPECTION

#10

20200056735

2020-02-20

Devices, systems, and methods for locking a conduit

#11

20190331282

2019-10-31

Mechanical plug

#12

20190203869

2019-07-04

Water-soluble pipe-plugging device and pipe plugging method thereof

#13

20180348799

2018-12-06

Hydraulic manifold channel plug

#14

20180224045

2018-08-09

Plug for servicing active pipe

#15

20180045686

2018-02-15

SEALING ASSEMBLY AND PLUG FOR NON-DESTRUCTIVE INSPECTION

#16

20180003330

2018-01-04

Systems and method for sealing pipelines using a gel pig

#17

20170363245

2017-12-21

Method for sealing pipelines using a gel pig

#18

20150377403

2015-12-31

Internal restraint device

#19

20150114983

2015-04-30

Device and method for plugging an end of a conduit

#20

20150000780

2015-01-01

Sealed bladder assembly and method

#21

20140023440

2014-01-23

Autonomous pipeline buckle arresting isolation tool

#22

20140020782

2014-01-23

Electrical autonomous pipeline isolation tool

#23

20130074969

2013-03-28

Device for sealing the end face of a tube from which fluid flows

#24

20110204052

2011-08-25

INTERNAL RESTRAINT DEVICE

#25

20100200086

2010-08-12

Automatically tripped compact safety device for controlling the flow of a fluid

#26

20080075538

2008-03-27

Method and apparatus for repairing underground pipes

#27

20070272679

2007-11-29

Small diameter pipe repair device

#28

20060163075

2006-07-27

Method and apparatus for downhole pipe or casing repair

#29

20050000593

2005-01-06

Plumber's tool

#30

13548027

2015-11-03

Conduit cover with wedging arms