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Class Information
Number: 137/505.34
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > Reactor surface separated by apertured partition > Valve stem passes through the aperture > Valve head in inlet chamber
Description: Devices in which the valve head is in the inlet chamber.

Sub-classes under this class:

Class Number Class Name Patents
137/505.35 Rectilinear valve stem rigid with reactor surface 10

Patents under this class:

Patent Number Title Of Patent Date Issued
7811532 Dual-flow valve and internal processing vessel isolation system Oct. 12, 2010
7165573 Compressed natural gas pressure regulator Jan. 23, 2007
7137404 Direct acting pressure reducing valve Nov. 21, 2006
6860287 Variable flowrate regulator Mar. 1, 2005
6283146 Pressure reducing valve with pressure gage in handle Sep. 4, 2001
5520214 Regulator and fill valve May. 28, 1996
4732319 Fill valve for a water heating system Mar. 22, 1988
4313460 Pilot valve Feb. 2, 1982

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