| 摘要 |
Drip Free Opening comprises a sidewall, a base and a spout. The sidewal l surrounds the base and the spout. The base slopes down from the sidewall to the spout and supports them. There is a draining hole in the lowest position of the base, or there is draining chink through the spout at the lowest position of the base. Accumulation of liquid staying inside of the sidewall can flow to the lowest position of the base and pass through the draining hole or draining chink to drop back into container. At the end of pouring, t he rim of the spout cuts the flow, and a small amount of liquid leaks from the spout and flow down into the space between the sidewall and the spout, then, drops back into container through draining hole or draining chink. After pouring, no liquid leaks over the sidewall down outside surface of the container.
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