Reciprocating piston positive displacement flow meter

Details Reciprocating piston positive displacement flow meter Reciprocating piston positive displacement flow meter

1991-05-29

1993-03-16

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Expansible chamber

G01F 314

Patent

active

051933896

ABSTRACT:
The reciprocating piston positive displacement flow meter of the present invention comprises a hollow flow tube having a movable piston for reciprocal movement between opposite ends and a solenoid controlled valve assembly having a sliding valve member for reversing the direction of fluid flow through the flow tube in response to the activation and deactivation of a solenoid. The solenoid is switched from an activated state at one end of the piston stroke to an unactivated state at the opposite end.

REFERENCES:
patent: 1974202 (1934-09-01), Blum
patent: 2014664 (1935-09-01), Nicholls
patent: 3344667 (1967-10-01), Maltby
patent: 3657925 (1972-04-01), Gross
patent: 4240291 (1980-12-01), Anderson et al.
patent: 4398428 (1983-08-01), Kato
patent: 4802362 (1989-02-01), Hayes

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