Mass flow meter

Details Mass flow meter Mass flow meter

1987-02-20

1988-11-29

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

G01F 142

Patent

active

047872543

ABSTRACT:
A mass flow meter includes a hollow base pipe having an inlet adapted to be attached to the discharge line of an air compressor or like apparatus to be tested. The base pipe also has an outlet end which is fitted with one of a plurality of convergent nozzles of differing, known throat diameters. A pressure gauge is fitted to the base pipe, upstream of the nozzle, to sense the pressure therein. The pressure gauge has ring-shaped mass flow rate indicia thereon which are individually calibrated to conform to each of the sized nozzles to permit direct reading of mass flow rates as a function of pressure.

REFERENCES:
patent: 1697344 (1929-01-01), Campbell
patent: 3204459 (1965-09-01), Lehrer
patent: 3817100 (1974-06-01), Anderson et al.
patent: 3896670 (1975-07-01), Converse, III et al.

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