| 摘要 |
<p>(a) a base (16) adapted to be attached to an opening of a liquid container (12), where the base (16) includes a conduit extending therethrough that is adapted to be in fluid communication with liquid contents of the liquid container (12), where the base (16) further includes a substantially tubular spout guide (42) defining at least a portion of the conduit, and where the base (16) further includes an annular deck (44) extending radially inwardly from an inner circumferential surface of the base defining a central orifice (46) in fluid communication with the conduit; and (b) a substantially annular spout (18) mounted to the tubular spout guide (42) for reciprocation at least between an open position and a closed position, the spout (18) including (1) an annular wall (66) and (2) a plug (48) positioned radially within the annular wall (66); at least a substantial portion of the outer circumferential seal surface of the plug (48) is axially recessed or flush with respect to the annular wall (66) of the spout (18).</p> |
