A valve assembly for an aerosol spray device
A pressurized aerosol spray container valve assembly comprising a housing with internal walls defining a valve chamber 104 with a housing inlet for fluid communication with fluid in the container; a valve stem 120 with a proximal end received in the chamber and a distal end projecting through a seal...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A pressurized aerosol spray container valve assembly comprising a housing with internal walls defining a valve chamber 104 with a housing inlet for fluid communication with fluid in the container; a valve stem 120 with a proximal end received in the chamber and a distal end projecting through a sealed opening in the chamber, the stem including an outlet flow conduit 180 with an outlet aperture 182 at the distal end and a valve stem inlet (178, fig. 4); first sealing means, biasing means 146 and second sealing means in the chamber; wherein the stem is movable between a closed position where the first sealing means is biased against the second sealing means by the biasing means such that the housing inlet is not in fluid communication with the stem inlet, and an open position where the first sealing means is displaced from the second sealing means by the proximal end of the valve stem such that the housing inlet is in fluid communication with the at least one valve stem inlet; wherein in the open position a flow path is created from the housing inlet, around the outside of the first sealing means to the valve stem inlet. |
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