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Class Information
Number: 137/502
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > Responsive to change in rate of fluid flow > Expansible chamber subject to differential pressures > With venturi tube having a connection to throat
Description: Apparatus in which the pressures to which the movable reaction member is subject are taken at the throat of a Venturi placed in the flow line and at another point upstream or downstream of said throat.

Patents under this class:

Patent Number Title Of Patent Date Issued
8408242 Overflow shutoff valve Apr. 2, 2013
6109885 Vacuum System for a transfer system Aug. 29, 2000
5875806 Flow control valve with increased flow range Mar. 2, 1999
5785079 Fluid distribution valve Jul. 28, 1998
5720313 Flow rate control system Feb. 24, 1998
5234021 Nozzle damper assembly Aug. 10, 1993
4196849 Variable volume control assembly Apr. 8, 1980
4004607 Conduit arrangement with protection against rupture and leakage Jan. 25, 1977

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