Liquid metering pump
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United States of America Patent
Stats
-
Dec 2, 1980
Grant Date -
N/A
app pub date -
May 3, 1978
filing date -
May 3, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid metering pump has power-operated poppet valves in its intake and return conduits. The quantity of liquid discharged is controlled by a movable cam which determines how long the liquid return conduit is open. A switch operated by a portion of a pumping diaphragm prevents excess pressure from damaging the pump.
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Family
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Cited Art Landscape
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