| 摘要 |
A closing device for recipients provided with a nozzle and a cap and having a cylindrical seat provided in the nozzle and having at least one radial window in communication with the recipient; a cylindrical tubular seal affixed to the interior of the cap, having at least one radial opening and being fitted and journalled in the interior of the seat; and a sealing means, incorporated in the interior of the cap and being seated against the free end of the seat to seal it, said cap having an axial orifice opened to the interior of the cylindrical tubular seal and being selectively angularly displaced between an opening position, and a closing position.
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