| 摘要 |
A deformable container can be utilized with a dispensing closure having a cap and a rotary spout adapted to be moved between an open and a closed position as a "pump" so as to exhaust the contents of the container by utilizing in connection with these parts or elements a vent extending through the closure, and inlet and outlet check valves. Preferably the check valves are mounted on a fitment within the cap so as to serve as a part of the closure itself. Preferably the vent is closed off by the spout when the spout is in a closed position.
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