Metering valve for aerosol container
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 27, 2005
Grant Date -
Dec 18, 2003
app pub date -
Jun 4, 2003
filing date -
Jun 17, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
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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Cited Art Landscape
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