Tap for gas or liquid cylinder
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United States of America Patent
Stats
-
Feb 27, 2007
Grant Date -
Sep 30, 2004
app pub date -
Mar 18, 2004
filing date -
Mar 28, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tap for a gas or liquid cylinder is provided that comprises an inverted seat primary valve located in a main portion of a tap body and a secondary check valve spring biased into closed position and located below the lower end of a threaded section of a root end portion of the tap body. Both valves are actuated by an elongated stem extending from the main portion of the tap body into the root end portion. When the tap is fixed to a gas or liquid cylinder, the secondary check valve is located in the cylinder, thereby remaining operative when the tap body is sheared-off at a location where it extends out from a cylinder tap aperture.
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