Flow meter

Details Flow meter Flow meter

1978-05-15

1980-03-25

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

G01F 128

Patent

active

041943945

ABSTRACT:
A flow meter comprises a housing defining a fluid inlet passage and a fluid outlet passage; a piston defining a jacket surface and a base surface is arranged in the housing for reciprocating movement between the two passages; a biasing spring urges the piston into a zero flow position in which the piston interrupts the communication between the two passages; the base surface of the piston faces the inlet passage so that the fluid flow displaces the piston into a flow position; flow distributing means in the form of a partition arranged in the outlet passage has a plurality of slots shaped for adjusting the flow rate between the two passages according to the variation of the spring bias of the moving piston; and an electrical position detector coupled to the piston to generate an electrical signal proportional to the displacement of the piston.

REFERENCES:
patent: 1068926 (1913-07-01), Popoff
patent: 1200640 (1916-10-01), Morris
patent: 1641744 (1927-09-01), Decker
patent: 2052022 (1936-08-01), Fisher
patent: 2640356 (1953-06-01), Shannon
patent: 2889780 (1959-06-01), Binford
patent: 2934094 (1960-04-01), Szydlowski

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