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Class Information
Number: 137/315.25
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > Assembling or disassembling rotary valve > Plug valve

Sub-classes under this class:

Class Number Class Name Patents
137/315.26 Having retainer at actuator end 9

Patents under this class:

Patent Number Title Of Patent Date Issued
8550432 Stopcock Oct. 8, 2013
8286940 Nozzle shutoff for an injection molding machine Oct. 16, 2012
7703205 Method of refurbishing a high-pressure plug valve Apr. 27, 2010
6257271 Servo operated valve with sonically welded housing and method of making same Jul. 10, 2001
6186164 Rotary valve comprising a drawing device Feb. 13, 2001
6029686 Thermally responsive valve Feb. 29, 2000
5829469 Apparatus for retrofitting a non-pressure balanced mixing valve to provide pressure balanced operation Nov. 3, 1998
5467796 Ball valve with a strainer and integrated means for flushing the strainer Nov. 21, 1995
5445180 Fluid flow control Aug. 29, 1995
5207241 Liquid shut-off valve May. 4, 1993
5188144 Plug valve Feb. 23, 1993
5161565 Cover and retainer for a compressor valve Nov. 10, 1992
5118073 Valve Jun. 2, 1992
5096158 Oil drain valve assembly Mar. 17, 1992
5078176 Valve assembly for a filter device Jan. 7, 1992
5076540 Stop valve Dec. 31, 1991
4887629 Plug valve and method of assembly Dec. 19, 1989
4776566 Raised hardface overlay valve seat Oct. 11, 1988
4711272 Surge irrigation valve Dec. 8, 1987
4705058 Plug valve Nov. 10, 1987
4678002 Faucet valve with adjustable stem tightener Jul. 7, 1987
4619283 Stem seal for tapered lubricated plug valves Oct. 28, 1986
4610266 Valve assembly for securing a cover to a valve body with fasteners which are free of tensile stress Sep. 9, 1986
4598728 Plugcocks Jul. 8, 1986
4564044 Rotatable valve assembly Jan. 14, 1986
4546789 Valved access fitting Oct. 15, 1985
4450854 Lubricated split plug valve May. 29, 1984
4393893 Lubricated split plug valve Jul. 19, 1983
4320777 Actuator mechanism for lift-turn valves Mar. 23, 1982
4206778 Rotary valve assembly having a dual purpose valve element Jun. 10, 1980
4041973 Quick change valve trim assembly Aug. 16, 1977
3937441 Rotary valve Feb. 10, 1976

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