Flow sensor responsive to fluid within a range from above a pred

Details Flow sensor responsive to fluid within a range from above a pred Flow sensor responsive to fluid within a range from above a pred

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

042057035

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

REFERENCES:
patent: 2935040 (1960-05-01), Steenson
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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