Fluid flow measuring apparatus

Measuring and testing – Volume or rate of flow – Expansible chamber

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Details

137852, G01F 314

Patent

active

040709108

ABSTRACT:
A fluid flow measuring apparatus characterized by a low friction piston and seal construction which is operable at low differential pressures. The piston and seal construction is further characterized by a bi-directional pressure relief feature that eliminates the possibility of flow blockage in the fluid system in which the apparatus is operating.

REFERENCES:
patent: 2564697 (1951-08-01), Kelley
patent: 3344667 (1967-10-01), Maltby

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