Flowmeter

Details Flowmeter Flowmeter

1980-11-20

1982-11-30

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

G01F 124

Patent

active

043610510

ABSTRACT:
An improved flowmeter is disclosed for measuring the flow rate of a fluid such as a gas or a liquid. The flowmeter comprises a body portion including a fluid inlet and a fluid outlet. A core tube is vertically disposed within the body portion to be in fluid communication with the fluid inlet. A tapered recessed groove extends along the core tube to provide a fluid path adjacent the core tube in fluid communication with at least the fluid outlet of the body portion. A piston is located within the core tube to expose a variable amount of the tapered recessed groove to the fluid inlet upon movement of the piston within the core tube. The fluid flow moves the piston relative to the recessed groove to an equilibrium position determined by a single cross-sectional area of the tapered recessed groove for a given flow. Means are provided for indicating the position of the piston for determining the volumetric flow rate of the fluid.

REFERENCES:
patent: 1238498 (1917-08-01), Dawley
patent: 2091792 (1937-08-01), Neisemann
patent: 2459689 (1949-01-01), Dickey
patent: 2523666 (1950-09-01), Moth
patent: 2558356 (1951-06-01), Greene
patent: 3224270 (1965-12-01), Karol
patent: 3253459 (1966-05-01), Sorenson et al.
patent: 3691834 (1972-09-01), deFasselle
patent: 4315436 (1982-02-01), McCabe et al.

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