Liquid shut-off system
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United States of America Patent
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-
Jul 10, 1990
Issued Date -
N/A
app pub date -
Nov 30, 1989
filing date -
Feb 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The system is designed to shut-off the flow of liquid in a conduit, unattended, i.e., automatically, in the event of a liquid conduit rupture, liquid overflow, or the like. A float which carries a mercury switch is set over a recess formed therefor and into which liquid can flow and collect. The float rises with the collected liquid, and the mercury switch activates a solenoid valve which is interpositioned in a pressured-liquid conduit, to halt the flow of liquid through the conduit. The recess is formed in a lowermost portion of an area in which the subject conduit is sited.
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