Patent attributes
A closure for the neck of a container such as a water bottle includes a cap 32 for engagement with the neck, and a valve plug 44. The cap has an inner guide sleeve 38 which sealingly receives the valve plug 44, which is provided with latches 50. When the bottle is placed on a liquid dispensing station such as a water cooler a probe 5 sealably enters the sleeve 38 and an actuator head 70 engages the latches 50 to carry the plug out of the sleeve 38. The probe requires minimum insertion force. One or more water flow ports 72 are provided in the probe 5 to conduct water out of the bottle, while air may enter the bottle via a vent port 73 and vent apertures in the valve plug 44. This allows simultaneous exchange of air and water without risk of air entrainment whilst providing a short penetration distance.
