Fluid handling – Processes
Reexamination Certificate
2008-07-01
2008-07-01
Lee, Kevin L (Department: 3753)
Fluid handling
Processes
C137S624110, C137S553000
Reexamination Certificate
active
07392817
ABSTRACT:
The present invention is a water conservation safety shut-off valve assembly for use on locations which normally have intermittent water usage but need to indicate when there is constant water usage, such as a leak. The valve assembly has a valve body with a fluid pathway and a valve plug held in an open position allowing water to flow through the pathway. As water flows through the pathway, a sensing device detects water flowing through the pathway and begins timing duration of water flowing through the pathway. If the water flow through the pathway stops, the timer value is reset to zero. If the water flows through the pathway, and the timer circuit reaches a predetermined manually set value, the valve closes the pathway, stopping the flow of water through the valve assembly. Preferably, the valve assembly indicates whether the valve is in an open or closed position. In addition, the valve assembly may generate its own electricity or may use standard battery or household power to operate the timer and related circuitry.
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Burlage Brian J.
Burlage Roger Anthony
Castlebridge Enterprises, Inc.
Lee Kevin L
McKee Voorhees & Sease, P.L.C.
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