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Class Information
Number: 138/89
Name: Pipes and tubular conduits > With closures and plugs
Description: Subject matter relating to pipes or pipe fittings having closures or plugs, or closures and plugs limited by structure to use with pipes.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7614426 |
Cap for connector |
Nov. 10, 2009 |
| 7610937 |
Self-sealing regulator fill port protective/dust cover |
Nov. 3, 2009 |
| 7607456 |
Plug for hydrostatic testing of flexible polymeric pipe or tubing |
Oct. 27, 2009 |
| 7597117 |
Compression plug system for tubes and pipes |
Oct. 6, 2009 |
| 7588052 |
Closure plug |
Sep. 15, 2009 |
| 7588053 |
Inflatable plug with flange |
Sep. 15, 2009 |
| 7578413 |
Single-piece sealing cover |
Aug. 25, 2009 |
| 7571743 |
Gravity flow isolation device |
Aug. 11, 2009 |
| 7568520 |
Oil cooler |
Aug. 4, 2009 |
| 7549447 |
Pressure valve inlet cover system |
Jun. 23, 2009 |
| 7546847 |
Locking plug for closing the sidewall of a pipe |
Jun. 16, 2009 |
| 7533721 |
Millable pre-installed plug |
May. 19, 2009 |
| 7533699 |
End cap clamping and sealing system |
May. 19, 2009 |
| 7533698 |
Trackable, identifiable foreign material exclusion device |
May. 19, 2009 |
| 7520301 |
Blocking assembly |
Apr. 21, 2009 |
| 7490629 |
Plug kit |
Feb. 17, 2009 |
| 7487801 |
Cap and plug for masking or shipping |
Feb. 10, 2009 |
| 7484696 |
Pipe fixing system |
Feb. 3, 2009 |
| 7484533 |
Vent cap and inspection cap fitting assembly |
Feb. 3, 2009 |
| 7478649 |
Absorbent plugs and caps for air conditioning and refrigeration fittings |
Jan. 20, 2009 |
| 7472721 |
Method of applying a high pressure closure |
Jan. 6, 2009 |
| 7472912 |
Tear-out coupling and water line |
Jan. 6, 2009 |
| 7464727 |
Clean-out repair plug |
Dec. 16, 2008 |
| 7455077 |
Inflatable plug with flange |
Nov. 25, 2008 |
| 7452161 |
Apparatus for sealing and isolating pipelines |
Nov. 18, 2008 |
| 7404419 |
Tubular element end protector and tubular element comprising same |
Jul. 29, 2008 |
| 7389798 |
Plug for a port |
Jun. 24, 2008 |
| 7361267 |
Dialysis machine blood circulating circuit fitting |
Apr. 22, 2008 |
| 7353839 |
High temperature completion plug |
Apr. 8, 2008 |
| 7347455 |
Riser protector |
Mar. 25, 2008 |
| 7347218 |
Roof cap removal tool |
Mar. 25, 2008 |
| 7343936 |
Water pipe coupling with off-centered piercing assembly for tear out disk and method of removing disk |
Mar. 18, 2008 |
| 7334607 |
Protective cap for a sealing stopper in a collecting vessel of a condenser |
Feb. 26, 2008 |
| 7334608 |
Removable sanitary sewer friction-fit plug for unwanted fluid exclusion |
Feb. 26, 2008 |
| 7325442 |
Leak testing device with a permanent coupling |
Feb. 5, 2008 |
| 7325573 |
Plumbing line test plug and method of use of the same |
Feb. 5, 2008 |
| 7314065 |
Irreversible plug assembly |
Jan. 1, 2008 |
| 7311120 |
Expandable pipe stopper |
Dec. 25, 2007 |
| 7296597 |
Methods for sealing and isolating pipelines |
Nov. 20, 2007 |
| 7281546 |
Thread protection system with weather barrier |
Oct. 16, 2007 |
| 7278450 |
Coupling assembly for securement in the open end of a pipe |
Oct. 9, 2007 |
| 7264020 |
Accessible test fitting for a plumbing system |
Sep. 4, 2007 |
| 7243685 |
High pressure closure |
Jul. 17, 2007 |
| 7240697 |
Apparatus and method for isolating and testing a segment of pipelines |
Jul. 10, 2007 |
| 7225836 |
Pipe plug |
Jun. 5, 2007 |
| 7210503 |
Method and device for increasing safety during pipelaying |
May. 1, 2007 |
| 7203263 |
Core spray apparatus and method for installing the same |
Apr. 10, 2007 |
| 7171987 |
Pipe fitting plug |
Feb. 6, 2007 |
| 7163028 |
Multipurpose plumbing tool |
Jan. 16, 2007 |
| 7159664 |
Method of passing insulated wires through a wellhead opening |
Jan. 9, 2007 |
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