Measuring and testing – Volume or rate of flow – System
Patent
1977-12-19
1979-11-27
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
System
73211, G01F 136
Patent
active
041754336
ABSTRACT:
Two pressure-receiving members are provided within a proportional valve interconnecting a main pipe and a bypass line.
The ratio of the rate of fluid flow in the main pipe to the rate of fluid flow in the bypass is held constant by moving vertically a valve plug within the proportional valve by the forces developed by the differential pressure placed across each of these two pressure-receiving members and by adjusting the rate of fluid flow in the bypass so as to keep a constant ratio of the pressure differential created across a restriction in the main pipe to the pressure differential created across a restriction in the bypass. Therefore the rate of fluid flow in the main pipe can be determined from a measurement of the rate of fluid flow in the bypass.
REFERENCES:
patent: 475596 (1892-05-01), McDonald
patent: 1944339 (1934-01-01), Wunsch
patent: 2538824 (1951-01-01), Andresen, Jr.
patent: 2949123 (1960-08-01), Lawrence
patent: 3034352 (1962-05-01), Blay
patent: 3315694 (1967-04-01), Addison
patent: 3411538 (1968-11-01), Grunner et al.
patent: 3425278 (1969-02-01), Buzza
patent: 3618383 (1971-11-01), Holben
Goldstein Herbert
Jordan Frank J.
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