| 摘要 |
A venting closure for a threaded neck container ( 12 ) filled with a fluid such as milk comprising a first threaded cap ( 11 ) having at least one opening ( 14,15 ) in an upper region and a second snap cap ( 13 a) having a outlet nozzle ( 13 b) in the form of a teat which is adapted to fit over the first cap, and the first cap ( 11 ) is adapted to fit over the opening in a bottle ( 12 ). When the second cap is located over the first cap, a channel or flow path ( 18 ) extends from the upper region of the first cap ( 11 ) between the first cap and the second cap to permit a flow of air between the first and second caps. The air fills the void left in the bottle as a result of liquid leaving trough the nozzle. The flow path ( 18 ) extends from the hole ( 15 ) around the periphery to a vertical groove ( 19 ) which extends three quarters down the outer side surface of the first cap ( 11 ). A baby suckling or drinking on the teat ( 13 b) does not ingest air along with the milk and hence reduces the problem of colic.
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