Freeze protection device for wall hydrants/faucets
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United States of America Patent
Stats
-
Apr 26, 2005
Grant Date -
Feb 17, 2005
app pub date -
Aug 14, 2003
filing date -
Aug 14, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A freezeless wall hydrant has a normally horizontal fluid inlet tube with an interior end and exterior end. A hollow valve fitting is rigidly secured to the interior end of the inlet tube for a connection to a source of pressurized fluid. A valve seat is located on an interior end of the valve fitting. A valve body is longitudinally movably mounted in the inlet tube adjacent to the valve fitting. A pressure relief valve is mounted on the inlet tube between the interior and exterior ends thereof so that if residual water within and adjacent the exterior end of the inlet tube freezes and exerts pressure on residual fluid within the inlet tube adjacent the interior end thereof, the pressure relief valve will actuate to purge some of the high pressure fluid to decrease the pressure being exerted by such fluid to the interior of the inlet tube.
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