CPC B65D 41/0407 (2013.01) | 20 Claims |
1. A closure comprising:
a generally circular top panel having an upper surface, a lower surface and an outer periphery;
a vertical axis around which the top panel is centered;
an outer cylindrical wall extending from an outer periphery of the top panel;
a cylindrical first plug extending a first depth downward from the lower surface of the top panel, the first plug being radially closer to the vertical axis than the outer periphery of the top panel;
a cylindrical second plug extending a second depth downward from the lower surface of the top panel, the second plug being radially further from the vertical axis than the first plug, the first depth of the first plug being greater than the second depth of the second plug;
a plurality of third plug segments extending a third depth downward from the lower surface of the top panel, the plurality of third plug segments being radially further from the vertical axis than the second plug, the third depth being greater than the second depth of the second plug and the third depth being less than the first depth of the first plug; and
a gap defined between two of the plurality of third plug segments, wherein the gap provides fluid communication between the second plug and ambient air external to the outer cylindrical wall when the closure is tightly coupled to a container.
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