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Class Information
Number: 137/15.14
Name: Fluid handling > Processes > Cleaning, repairing, or assembling > Repairing, securing, replacing, or servicing pipe joint, valve, or tank > Tapping pipe, keg, or tank > Particular aperture forming means > Cutter or cutting tool
Description:










Patents under this class:
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Patent Number Title Of Patent Date Issued
8534306 Subsea hot tap systems and methods Sep. 17, 2013
8496020 Tap and draining device for a filter cartridge Jul. 30, 2013
7913395 Pipe cutter with fluid diverting means and method of use thereof Mar. 29, 2011
7753068 Diversion under load conditions in distribution systems Jul. 13, 2010
7338089 Pipe interruption fitting Mar. 4, 2008
7159603 Mechanical hot tapping method Jan. 9, 2007
6976498 Method of fitting a cable into a pipe Dec. 20, 2005
6907896 Tapping fitting Jun. 21, 2005
6681796 Drainage valve pipe tap assembly Jan. 27, 2004
6655406 Hot tapping apparatus and method Dec. 2, 2003
6615859 Fluid supply interruption free method of construction Sep. 9, 2003
6612330 No interrupt service tee and method Sep. 2, 2003
6601605 Locking end cap Aug. 5, 2003
6564823 Method and apparatus for testing plumbing installations May. 20, 2003
6536463 Method and system for installing cable in pressurized pipelines Mar. 25, 2003
6530389 Existing pipe cut-off method, existing pipe slitting method, piping structure, and valve insertion method for inserting a valve in a line without stopping passage of water or fluid Mar. 11, 2003
6510865 Tap and saddle for forming a hinged coupon Jan. 28, 2003
6491057 Method and device for installing an air tap onto a pressurized air pipe Dec. 10, 2002
6470907 Existing pipe cut-off method, existing pipe slitting method, piping structure, and valve insertion method for inserting a valve in a line without stopping passage of water or fluid Oct. 29, 2002
6446662 Device for drilling or plugging a hole in a sealed fluid container or conduit wall Sep. 10, 2002
6390118 Apparatus and method for testing plumbing system May. 21, 2002
6308726 Valve insertion method and cutting tool Oct. 30, 2001
6161563 Plumbing tool Dec. 19, 2000
6142166 Method and tool for plugging a service connection in a gas main Nov. 7, 2000
6131597 Method and apparatus for cutting, sealing and opening pipe Oct. 17, 2000
5896885 Tapping saddle pipe fitting Apr. 27, 1999
5842496 Hot tap connection and method for production thereof Dec. 1, 1998
5791364 Attachment for stopper for plastic gas pipelines Aug. 11, 1998
5740830 Testing of plumbing installations Apr. 21, 1998
5732728 Valve insertion method and assembly for inserting a valve in a line Mar. 31, 1998
5704383 Tool and method for removing fluid from container Jan. 6, 1998
5660199 Method and valve for hot tapping a line Aug. 26, 1997
5462077 Apparatus and method for shutting off fluid flow in a pipe main Oct. 31, 1995
5400492 Pipe treating method and apparatus Mar. 28, 1995
5327923 Valve for installation on a pressurized fluid flow line Jul. 12, 1994
5105844 Two step branch forming attachment Apr. 21, 1992
5076311 Directly installed shut-off valve assembly for flowing high pressure line Dec. 31, 1991
5065780 Method and means for connecting a branch conduit to an existing conduit Nov. 19, 1991
5044388 Perforating gun pressure bleed device Sep. 3, 1991
5030039 Apparatus and method for installing a thermometer-receiving well within a fluid service pipe Jul. 9, 1991
4730636 Valve and tapping tee apparatus and method Mar. 15, 1988
4573628 Method for tapping into tubing under a controlled atmosphere, in particular for tubing in a nuclear power station Mar. 4, 1986
4541447 Hot tap saddle fitting Sep. 17, 1985
4540011 Method and device for forming a branch connection in a pipe Sep. 10, 1985
4516593 Plumbing repair device and method May. 14, 1985
4431017 Pipe tapping method and apparatus Feb. 14, 1984
4399829 Tapping apparatus and method Aug. 23, 1983
4370995 Method and apparatus for prenotching a pipeline Feb. 1, 1983
4234006 Method of forming an opening in the outer enclosure of a gas-insulated electrical apparatus Nov. 18, 1980
4184504 Wellhead valve removal and installation tool Jan. 22, 1980

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