Valves and valve actuation – Lost motion between actuator and valve – Check valve with external opening and closing means
Reexamination Certificate
2008-01-29
2008-01-29
Bastianelli, John (Department: 3753)
Valves and valve actuation
Lost motion between actuator and valve
Check valve with external opening and closing means
C251S284000, C137S614200, C137S797000
Reexamination Certificate
active
07322558
ABSTRACT:
A non-refillable valve is provided that allows for an initial filling of a container, but prevents subsequent refilling of the container. In one embodiment, the valve includes a valve core having a retaining means for maintaining the valve core in an open or non-sealing position to allow flow through the valve and filling of the container. The valve core may then be advanced to seal the container, and subsequently selectively operated to discharge the container as desired. Further refilling of the container is prevented by the force of fluid reentering the valve which forces the valve core to its seated engagement with the valve seat.
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Bastianelli John
Discount Refrigerants, Inc.
Sheridan & Ross P.C.
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