SEAL ARRANGEMENT FOR A CONTAINER CLOSURE
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United States of America Patent
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Issued Date -
Dec 7, 2023
app pub date -
Sep 29, 2021
filing date -
Oct 6, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A container closure includes a base member, a cover member and a gasket. The base member is configured for attachment to an associated liquid container and includes abase wall having drinking and venting openings. The cover member is removably connected to the base member and includes a cover wall having drinking and venting apertures in selective registry with the respective drinking and venting openings. The gasket is interposed between the base member and the cover member and has an upper surface facing the cover member. The upper surface integrally defines a first seal member surrounding the drinking aperture and a second seal member surrounding the venting aperture. Each of the first seal member and the second seal member is substantially frustoconical shaped and is adapted to flex outwardly into engagement with the cover member in response to an increase in pressure within the associated container.
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