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Class Information
Number: 138/93
Name: Pipes and tubular conduits > With closures and plugs > Inflatable
Description: Plugs for pipes having an inflatable member to seal against inside of the pipe opening.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7597118 |
Pneumatic pressure relief test plug |
Oct. 6, 2009 |
| 7588053 |
Inflatable plug with flange |
Sep. 15, 2009 |
| 7520301 |
Blocking assembly |
Apr. 21, 2009 |
| 7513274 |
Inflatable plumbing test plug and method |
Apr. 7, 2009 |
| 7484532 |
Flexible-film expandable gate |
Feb. 3, 2009 |
| 7455077 |
Inflatable plug with flange |
Nov. 25, 2008 |
| 7452161 |
Apparatus for sealing and isolating pipelines |
Nov. 18, 2008 |
| 7357146 |
Inflatable flow control apparatus and associated method |
Apr. 15, 2008 |
| 7325574 |
Rupture disc assembly for pneumatic plugs |
Feb. 5, 2008 |
| 7296597 |
Methods for sealing and isolating pipelines |
Nov. 20, 2007 |
| 7264774 |
Method and apparatus for sanitizing a drain |
Sep. 4, 2007 |
| 7240697 |
Apparatus and method for isolating and testing a segment of pipelines |
Jul. 10, 2007 |
| 7225836 |
Pipe plug |
Jun. 5, 2007 |
| 7216674 |
Installation assemblies for pipeline liners, pipeline liners and methods for installing the same |
May. 15, 2007 |
| 7182103 |
Tubular patch expansion apparatus with inflatable bladder |
Feb. 27, 2007 |
| 7124779 |
Device for fastening a manoeuvrable plug for plugging of pipes |
Oct. 24, 2006 |
| 7077195 |
Borehole closure |
Jul. 18, 2006 |
| 7073535 |
Inflatable pipe plug |
Jul. 11, 2006 |
| 7021337 |
Plumbing test plug and method |
Apr. 4, 2006 |
| 7017612 |
Conduit for paint |
Mar. 28, 2006 |
| 7013926 |
Plumbing leak testing apparatus |
Mar. 21, 2006 |
| 7000643 |
Bladder system for conduit expansion |
Feb. 21, 2006 |
| 7000641 |
Inflatable stopping bags |
Feb. 21, 2006 |
| 6966343 |
Pipe plug |
Nov. 22, 2005 |
| 6966373 |
Inflatable sealing assembly and method for sealing off an inside of a flow carrier |
Nov. 22, 2005 |
| 6959734 |
Flow-through inflatable plug |
Nov. 1, 2005 |
| 6948883 |
Sealing the junction region where a lateral pipe and a main pipe meet |
Sep. 27, 2005 |
| 6901966 |
Seal device for tubular member |
Jun. 7, 2005 |
| 6899138 |
Flexible emergency gas pipeline plug |
May. 31, 2005 |
| 6857158 |
Apparatus for cleaning the interior of pipelines |
Feb. 22, 2005 |
| 6820636 |
Plumbing tool |
Nov. 23, 2004 |
| 6796463 |
Inflatable and collapsible apparatus for dispensing fluid from a fluid vessel |
Sep. 28, 2004 |
| 6752569 |
Underwater tool |
Jun. 22, 2004 |
| 6752175 |
Auxiliary device for repairing a pipeline |
Jun. 22, 2004 |
| 6745795 |
Method and device for plugging a gas main |
Jun. 8, 2004 |
| 6732762 |
Pressure-containing plug for a tubular passageway |
May. 11, 2004 |
| 6729802 |
System and method for abandoning and recovering pipeline |
May. 4, 2004 |
| 6695013 |
Method and device for lining a lateral sewer pipe |
Feb. 24, 2004 |
| 6691741 |
Installation assemblies for pipeline liners, pipeline liners and methods for installing the same |
Feb. 17, 2004 |
| 6588455 |
Method and apparatus for blocking pipes |
Jul. 8, 2003 |
| 6581620 |
Method and apparatus for repairing or replacing valves |
Jun. 24, 2003 |
| 6568429 |
Pipe sealing apparatus |
May. 27, 2003 |
| 6543486 |
Leakage plugging method and implement |
Apr. 8, 2003 |
| 6516832 |
Method and apparatus for testing plumbing |
Feb. 11, 2003 |
| 6481465 |
Compressed-ring pneumatic pipe plug |
Nov. 19, 2002 |
| 6446669 |
Pipe sealing apparatus |
Sep. 10, 2002 |
| 6439580 |
Sealing element for pipelines |
Aug. 27, 2002 |
| 6427725 |
Pipeline lateral packer and felt combinations and methods therefor |
Aug. 6, 2002 |
| 6405994 |
Flow control valve incorporating an inflatable bag |
Jun. 18, 2002 |
| 6361015 |
Variable flow-through control plug |
Mar. 26, 2002 |
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