| 摘要 |
A closure for sealing a rim of an open mouth of a container including a substantially cylindrical end cap closed at a first end thereof by a top surface, open at a second opposite end thereof and including an annular side wall having a predetermined width extending between the first and second ends, the top surface including a first inside surface facing the interior of the end cap and a second exterior surface facing the exterior of the end cap, a first flexible seal member connected to and depending a predetermined distance from the first inside surface of the top surface proximate the annular side wall for cooperative sealing engagement with an outer edge of the container rim and for inhibiting outward distortion of the container rim, and a second flexible seal member connected to and depending a predetermined distance from the first inside surface of the top surface and within the confines of the first seal member for sealing engagement with an inner edge of the container rim and for inhibiting inward distortion of the container rim, the rim substantially being accepted between the first and second seal members which seal the exterior and interior edges of the rim, respectively, to prevent leakage of the container contents and contamination of the contents from elements outside the container.
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