Seal with automatic release
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 15, 1992
Grant Date -
N/A
app pub date -
Sep 4, 1991
filing date -
Sep 4, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seal for a container having an outwardly directed annular rim. The seal includes a top panel with a central section and an annular lever section integrally joined to the central section by a living hinge. A side wall integrally depends from the outer periphery of the lever section and includes an inwardly directed concavity for receiving the rim edge. A continuous convexity below the concavity provides for a snap-mounting of the seal to the container rim and a vertical skirt below the convexity provides for a guide for mounting the seal. A fulcrum rib depends from the undersurface of the lever section and engages the container rim on a depression of the top panel at the hinge to swing the side wall away from the rim. Vent openings are provided through both the fulcrum rib and the convexity to maintain pressure release air flow as the seal is mounted and removed.
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Cited Art Landscape
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