| 摘要 |
A closure system (10) useful for storing fluids under cold storage condition s. The closure system includes cap (40) and container components which combine to form a dual sealing system. The container (20) has a generally cylindrical side wall (21), a closed bottom end (24), and an open top end having an inne r beveled lip (25) depending from an annular top rim (26). The cap (40) has a generally circular top wall (41) from which inner and outer skirts (44, 42) depend. The outer skirt (42) is adapted to grip the open top end of the container (20). The inner skirt (44) includes an outer surface (48) having a lower seal bead (50) and an upper beveled portion (49) mated with the bevele d lip (25). When the cap (40) is fitted onto the container (20), the seal bead (50) contacts an inner surface (22) of the container and the upper beveled portion (49) and the beveled lip (25) are engaged in an interference fit, thereby impeding the loss of fluid from the closure system under cold storag e conditions.
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