| 摘要 |
<p>Container closure apparatus (10) including a rigid container (12) having an open end (14) with a top edge (16) along a collapsible container (20) disposed within the rigid container and having an open end. A cap (30) is provided for covering the rigid and flexible container open ends and a plug seal providing a primary seal between the rigid container and the flexible container. The plug seal (34) includes, in combination, a peripheral outwardly extending wall portion (46) on the flexible container and a depending portion, extending from the cap, for pressing the wall portion against an inside wall of the rigid container. An annular node (42) formed into the flexible container wall provides concentrate sealing pressure between the cap depending portion (38), the wall portion and the inside wall (40) of the rigid container. A gasket seal (44) provides a secondary seal between the rigid container and the flexible container. The gasket seal includes, in combination, a lip (46) outwardly extending from the flexible container open end and a groove (50), disposed in the cap means, for pressing the lip against the rigid container top edge (54).</p> |
