Device for over-pressure protection for a storage tank
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United States of America Patent
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May 7, 2002
Grant Date -
N/A
app pub date -
Feb 16, 2001
filing date -
Feb 16, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for over-pressure protection of a tank has a main body defining a main passage with an inlet and an outlet. The main body also defines a release passage branched from the main passage. A shut-off mechanism is movably disposed within the main passage and defines an open position for allowing a liquid to flow from the inlet to the outlet and a closed position for at least partially blocking the flow. Additionally, a plunger is movably disposed within the main body and connects to the shut-off mechanism. The plunger has a weight sufficient to maintain the shut-off mechanism in the open position until pressure in the release passage exceeds a predetermined value.
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