| 摘要 |
A cover and container combination for enclosing products in an air and/or liquid seal tight engagement comprises a cover with a rim portion defining an inverted U-shaped cross-section consisting of an inner horizontal wall and a pair of opposite inner vertical side walls, the inner horizontal wall displaying a downwardly extending continuous rib. The container has a side wall with an upper edge consisting of a top wall and a pair of opposite side walls, the top wall of the container displaying a continuous recess. The width of the rib is slightly greater than the width of the recess so as to provide a tight sealing fit when the rib is received in the recess when the cover is engaged to the container.
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