Measuring and testing – Volume or rate of flow – Using differential pressure
Patent
1981-08-03
1983-06-21
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Using differential pressure
G01F 122
Patent
active
043888356
ABSTRACT:
A fluid flow meter comprising a housing having a fluid inlet, a fluid outlet and defining an internal fluid chamber. A fluid passageway is formed in the housing for connecting the inlet with one end of the chamber while the outlet is open to the other end of the fluid chamber. The ends of the chamber are closed at the outlet end by an end cap and the other inlet end by a cartridge assembly which includes an end cap. Central to the housing fluid passageway and to the inlet end cap is attached to a rod having a conical metering portion. Attached to the metering rod is a freely centering piston assembly sealed nearest the outlet end by a flexible seal. An axial bore is formed through the piston and an orifice plate is detachably secured to the piston at near midpoint in the axial bore. One side of the plate is open to the inlet end while the other side of the plate is open to the outlet end of the chamber.
REFERENCES:
patent: 2654245 (1958-10-01), Hill
patent: 3234790 (1966-02-01), Ekstrom
patent: 3554031 (1971-01-01), Turner
patent: 3889535 (1975-06-01), Bull et al.
patent: 4064751 (1977-12-01), Deisenroth
Goldstein Herbert
Universal Flow Monitors
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