Dispensing – With discharge assistant – Fluid pressure
Reexamination Certificate
2005-12-27
2005-12-27
Bomberg, Kenneth (Department: 3754)
Dispensing
With discharge assistant
Fluid pressure
C222S402100, C222S402160, C222S402240, C141S020000
Reexamination Certificate
active
06978916
ABSTRACT:
A metering valve assembly comprising a ferrule and a valve housing defining an internal cavity. The valve housing accommodates an annular flange and a compression spring therein with a valve gasket closing the internal cavity. The valve housing is attached to the ferrule such that a stem portion of the valve stem protrudes through apertures provided in both the valve gasket and the ferrule. A stem portion has a discharge passageway which is normally closed by the valve gasket. Either an undersurface of the annular flange or a mating surface of the valve housing is provided with a compressible sealing member while the other is provided with an annular edge. The compressible sealing member and the annular edge form a seal therebetween, when the valve stem is sufficiently depressed, to partition the interior cavity into a metering chamber and a separate filling chamber whereby product may only be dispensed solely from the metering chamber when a product flow path is established.
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Bomberg Kenneth
Davis & Bujold P.L.L.C.
Summit Packaging Systems, Inc.
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