| 摘要 |
Carbonated colas and other pressurized liquids are often sold in large bottles with screw-on caps. Dispensing of the contents of the bottles can be messy, and once the bottles are opened the carbonation quickly dissipates. A simple cover and dispenser combination for bottles includes a cap for mounting in sealing engagement on the top end of a bottle; a sleeve extending downwardly from the center of the cap for receiving liquid from the interior of the container, and for discharging the liquid through a central opening in the cap; a valve seat in the sleeve around the bottom of the opening; and a valve in the sleeve, the valve including a tubular body fixed in the sleeve, a head on the body normally sealing against the valve seat, a plunger extending upwardly from the head through the central opening, and a resilient cage, defining a section of the body beneath the head, whereby the plunger can be pressed downwardly to deform the cage and open the valve by moving the head away from the seat, permitting the dispensing of fluid through the opening.
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