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Class Information
Number: 137/329.01
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > With provision of alternate wear parts > Valve heads and/or seats
Description: Devices relating to valve heads and/or seats.










Sub-classes under this class:

Class Number Class Name Patents
137/329.05 Different portions of continuous surfaces 5
137/329.02 Opposite duplicate surfaces of unitary structure 11
137/329.06 Successively used adjacent independent elements 4


Patents under this class:

Patent Number Title Of Patent Date Issued
8701553 Valve system Apr. 22, 2014
8333213 Valve system Dec. 18, 2012
6880804 Valve sealing means Apr. 19, 2005
6668857 Flow reversal control valve Dec. 30, 2003
6595235 Two-way orifice seat Jul. 22, 2003
5725007 Valve mechanism and method for making same Mar. 10, 1998
5649567 Sealing arrangement, for use with, and in combination with, a steam and fuel oil control and furge valve, and a valve seat therefor Jul. 22, 1997
5080137 Vortex flow regulators for storm sewer catch basins Jan. 14, 1992
4830281 Spray tip with seal ejector May. 16, 1989
4781325 Thermostatic valve with trap repair cartridge Nov. 1, 1988
4626194 Flow regulating device Dec. 2, 1986
4516753 Faucet device with replaceable valve cartridge May. 14, 1985
4469122 Modular check valve Sep. 4, 1984
4395019 Seal for wear resistant inserts Jul. 26, 1983
4388940 Pressure relief device Jun. 21, 1983
4355784 Method and apparatus for controlling back pressure Oct. 26, 1982
4295485 Diaphragm valve Oct. 20, 1981
4201366 Bellows valve May. 6, 1980
4140149 Plug cock Feb. 20, 1979
3930636 Ball valves Jan. 6, 1976











 
 
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