Fluid flow meter

Details Fluid flow meter Fluid flow meter

1988-06-29

1990-05-01

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Expansible chamber

7386121, G01F 154, G01F 300

Patent

active

049207946

ABSTRACT:
A fluid flow meter comprising a housing having a pair of fluid ports and defining therebetween a fluid flow path; a flexible membrane defining a pair of opposing faces and being mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at at least two different locations along the flow path, the membrane being operative to flex so as to permit passage therepast of discrete quanta of fluid, each having a known volume; apparatus for generating electrical signals corresponding to flexure of the membrane; and monitoring apparatus for receiving the electrical signals and thereby determining a fluid flow rate along the flow path.

REFERENCES:
patent: 398013 (1989-02-01), Welker
patent: 3015953 (1962-01-01), Peltola
patent: 3175399 (1965-03-01), Medlar
patent: 3792204 (1974-02-01), Murayama et al.
patent: 3824855 (1974-07-01), Heckle
patent: 3888120 (1975-06-01), Burgess
patent: 3948098 (1976-04-01), Richardson et al.
patent: 4141246 (1979-02-01), Randolph
patent: 4358954 (1982-11-01), de Jong
patent: 4409830 (1983-10-01), de Jong et al.
patent: 4578613 (1986-03-01), Posthuma de Boer
patent: 4594890 (1986-06-01), Baker, Jr.

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