| 摘要 |
A container for storing and dispensing carbonated beverages, including a housing having a sculpted base surface, a storage bladder, a dispensing valve, compression means within the housing to apply a continuous force to a piston between the compression means and the bladder, the piston having a shape complementary to the sculpted surface, guide means biasing the piston when pushed by the compression means against the bladder, whereby, as liquid is drawn from the bladder via the valve the liquid is exhausted by the piston mating with the first sculpted surface. Also a cap to seal an externally threaded container outlet, the cap having a base wall and peripheral skirt carrying an internal thread which engages with an external thread on the outlet, a spigot having an axial bore, being frangibly connected to extend from the base wall within the cap coaxially with the skirt, the spigot portion having means formed on its outside wall to engage the outlet bore, whereby selective screwing movement of the cap causes rupture of the frangible connection so that the spigot is retained in the outlet bore.
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