| 摘要 |
<p>A dispensing closure system (20) is provided for a container (22). The system (20) includes a body (30) for extending from the container (22) at the container opening (28). The body (30) includes a base (50), a conduit (70) that is reciprocatable relative to the base (50), and a flexible wall (80) joining the conduit (70) to the base (50). The conduit (70) includes a dispensing aperture (84) and a first seal surface (116). A spout (40) is carried on, and is rotatable relative to, the body (30). The spout (40) includes a dispensing orifice (42) and a second seal surface (130) for engaging the first seal surface (116). The body (30) and spout (40) together define a rotary-to-linear motion translation drive system that is (1) responsive to the rotation of the spout (40) in one direction for moving the conduit (70) in a first direction to a closed position, and (2) responsive to the rotation of the spout (40) in the opposite direction for moving the conduit (70) in a second direction opposite from the first direction to an open position.</p> |
