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Class Information
Number: 137/505.45
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > Reactor surface closes chamber > Valve head on yoke > Yoke has valve closing bias
Description: Devices wherein the valve is urged toward its seat in opposition to the opening bias by a force of less strength.

Patents under this class:

Patent Number Title Of Patent Date Issued
6644929 Pressure regulating valve Nov. 11, 2003
4190076 Damping valve for pressure regulator Feb. 26, 1980
3931830 Pump systems for liquids Jan. 13, 1976

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