| 摘要 |
An axially actuated valve primarily for use in a pressurized container having a dip tube comprises a vertical moveable valve element having a stem, button on the base of the stem and sidewall openings at the lower part of the stem. A resilient annular sealing grommet has a recess in its base into which the button fits. When the valve is closed, the button engages the ceiling of the recess to block product from reaching the sidewall openings. The button is within the recess at all times between its closed and open states. The button has upper and lower disc portions. The lower disc portion optionally has a tubular tail to engage a dip tube. The upper disc portion has edge recesses that provide communication between the stem wall openings and a zone created when the valve element is depressed. The button has a vertical passageway through the lower disc portion and a horizontal passageway between the two disc portions extending out to the edge recesses in the upper disc portion. When the valve is open, a passage is provided to dispense product through the passageways within the button to communicate with the stem sidewall openings.
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