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Class Information
Number: 137/315.42
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > Tool for applying or removing valve or valve member > Including sealing feature

Patents under this class:

Patent Number Title Of Patent Date Issued
7347218 Roof cap removal tool Mar. 25, 2008
6983759 Valve and method for repairing a valve under pressure Jan. 10, 2006
6851446 Adaptor especially for use in connection with swimming pool return lines Feb. 8, 2005
5893686 Pipe tapping drill attachment Apr. 13, 1999
5511578 Tool for installing a stopper in a gas conduit wall Apr. 30, 1996
5490537 Prosthesis air valve assembly and tool therefor Feb. 13, 1996
5464036 Orifice fitting with venting passage and injection seal Nov. 7, 1995
4901752 Apparatus for maintenance of ball valve Feb. 20, 1990
4883085 Method of installing a stopper in a fitting and apparatus therefor Nov. 28, 1989
4507841 Removal and reinstallation of bottom entering agitator seals Apr. 2, 1985
4239055 Pressure plug Dec. 16, 1980

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