To provide an improved container capable of adjusting a pressure of vacuum generated through hot-pack filling operation, imitating an outer appearance of a glass container having a side wall not having any substantial structure and showing a smooth glass-like outer appearance.
There is provided a plastic container having a bottom part 20 that is adapted for absorption of vacuum pressure. Its bottom part is provided with a contact ring 34 for use in supporting the container at its surface, an upright wall 44 and a central part 36. The upright wall is adjacent to the contact ring and substantially encloses the contact ring. The central part is at least partially formed by a central raised bottom part 40 and a reversing ring 42 substantially enclosing the central raised bottom part. The central raised bottom part and the reversing ring can be moved so as to adjust a force of pressure generated in the container.
SILVERS KERRY W
VAILLIENCOURT DWAYNE G
| JPH08156904A | 1996-06-18 | |||
| JPH0285143A | 1990-03-26 | |||
| JPH03100788U | 1991-10-21 | |||
| JPH01167078A | 1989-06-30 |
| US20020074336A1 | 2002-06-20 |
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