Flow sensor responsive to fluid leakage flow within a range from

Details Flow sensor responsive to fluid leakage flow within a range from Flow sensor responsive to fluid leakage flow within a range from

1979-01-24

1980-06-03

Schwadron, Martin P.

Fluid handling

With indicator, register, recorder, alarm or inspection means

Fluid pressure responsive indicator, recorder or alarm

137554, 116268, 210 90, F16K 3700

Patent

active

042057027

ABSTRACT:
A flow sensor is provided responsive to fluid leakage flows within a range from above a predetermined minimum to below a predetermined maximum, to indicate that leakage flow is within that range and/or that maximum leakage flow has been exceeded, but nonresponsive to fluid flows below the predetermined minimum or above the predetermined maximum, to avoid giving a false indication of fluid leakage flow, comprising a flow responsive valve and a differential pressure indicator sensing differential pressure between fluid leakage flow and normal fluid flow at the valve.

REFERENCES:
patent: 2935040 (1960-05-01), Steensen
patent: 3077176 (1963-02-01), Pall et al.
patent: 3094969 (1963-06-01), Whiting
patent: 3128743 (1964-04-01), Whiting
patent: 3212471 (1965-10-01), Willis
patent: 3283902 (1966-11-01), Farris et al.
patent: 3311125 (1967-03-01), Beasley
patent: 3335863 (1967-08-01), Silverwater
patent: 3495566 (1970-02-01), Pall
patent: 3828812 (1974-08-01), Read

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