Multi-purpose valve for extending shelf-life using vacuuming or injecting gas
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United States of America Patent
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Apr 11, 2017
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app pub date -
Nov 29, 2015
filing date -
Nov 29, 2015
priority date (Note) -
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Abstract
A multifunctional valve features a pumping function and a vacuuming function. The valve can be implemented in any closed container having a removable lid or a bag having a resealable zipper or any other similar sealable feature. The valve also features a tethered plug to additionally provide sealing. The valve incorporates a spacer or washer when used in thin walls to provide support. When the valve is used with a bag, the spacer or washer incorporates footing so that the valve does not collapse on its own when the valve is used in conjunction with a vacuum pump or a gas pump.
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