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Class Information
Number: 137/484.6
Name: Fluid handling > Line condition change responsive valves > Line flow effect assisted > Reactor surface separated from flow by apertured partition
Description: Devices in which the reactor surface is in a chamber distinct from the outlet chamber and in direct fluid communication therewith by means of an aperture through a partition or wall through the chambers.

Sub-classes under this class:

Class Number Class Name Patents
137/484.8 Through separate aperture 26

Patents under this class:

Patent Number Title Of Patent Date Issued
6792972 Excess pressure release for gas Sep. 21, 2004
5890512 CNG regulator Apr. 6, 1999
4705065 Safety relief system for control or vent valves Nov. 10, 1987
4638832 Nonreturn piston slide valve Jan. 27, 1987
4619285 Fluid flow control device Oct. 28, 1986
4616672 Pressure relief and drain valve Oct. 14, 1986
4574839 Directional control valve with integral flow control valve Mar. 11, 1986
4552172 Pressure-limiting hydraulic valve Nov. 12, 1985
4437485 Check valve Mar. 20, 1984
4243069 Fluid flow regulator Jan. 6, 1981
3993093 Non-return valve Nov. 23, 1976

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