Leak detector
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United States of America Patent
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Aug 28, 2012
Grant Date -
Apr 22, 2010
app pub date -
Oct 17, 2008
filing date -
Oct 17, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A leak detector for use with a piping system, where the leak detector includes a housing configured to be attached to a conduit and a valve configured and arranged for axial movement with respect to the housing. Additionally, there is a magnet attached to the valve for movement therewith. Embodiments of the invention also preferably include a magnetically-actuated switch positioned within the leak detector along an axial flow path of a fluid such that axial movement of the magnet triggers the switch, which indicates fluid flow through the leak detector. In certain embodiments, there is also a leak passageway that permits a relatively small amount of fluid to pass to an outlet side of the valve even when a diaphragm is in seating contact with the valve if fluid pressure on the outlet side of the valve is slightly lower than fluid pressure on an inlet side of the valve.
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