Reciprocating piston positive displacement flow meter
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United States of America Patent
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-
Mar 16, 1993
Grant Date -
N/A
app pub date -
May 29, 1991
filing date -
May 29, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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