| 摘要 |
Disclosed is a closure for a container, such as blow molded jug having a neck surrounding an opening therein, the closure having a first annular portion (26) and a second annular portion (32). The first annular portion in the closure has a wiper seal (28) and a lip seal (30). The second annular portion exerts an upward pressure on the lip seal which causes improved sealing and leak-tight properties during shipping, handling, etc. The upward pressure also enhances the effectiveness of the wiper seal. The second annular portion may include an annular tear skirt, defined by line of weakness (36), having a pull tab for the removal thereof to facilitate removal of the closure from the container. The closure may also include a plug seal, and a lower annular portion extending from the second annular portion.
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