| 摘要 |
A push/pull closure is disclosed the closure includes a body part (3) and a slider part (41). The slider part (41) can be moved between closed and opened positions. The body part (3) includes a nozzle section (15), a container neck engaging section (21), and an annular section (23). One feature of the closure is that the annular section (23) operates in an overcentre action to move the body part (3) from a raised position to a lowered position. As the annular section (23) moves to the lowered position the closure pierces a container membrane (7) to allow the container contents to be dispensed. Another feature of the closure is that the nozzle section (15) includes an air vent (71) that opens into a cavity (35) in which the slider part (41) slides between the open and closed positions. The air vent (71) spaced away from an outlet end (11) of the nozzle section (15) in order to minimised air entrainment as the contents of the container are being dispensed.
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