Desiccant-containing stopper
First Claim
1. A closure capable of sealing engagement with the mouth opening of a vessel, the closure comprising a closure wall having a puncturable region therein in communication with the interior of the vessel on which the closure is in place, and having on an inwardly facing region of the closure wall a desiccant material covered with a semi-permeable membrane which permits transmission of water vapor therethrough but is substantially impermeable to liquid water.
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Accused Products
Abstract
A container having a closure comprising a closure wall having a puncturable region in communication with the interior of the vessel, and having on an inwardly facing region of the closure wall a desiccant material separated from the interior of the vessel by a semi-permeable membrane which permits transmission of water vapor therethrough but is substantially impermeable to liquid water.
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Citations
14 Claims
- 1. A closure capable of sealing engagement with the mouth opening of a vessel, the closure comprising a closure wall having a puncturable region therein in communication with the interior of the vessel on which the closure is in place, and having on an inwardly facing region of the closure wall a desiccant material covered with a semi-permeable membrane which permits transmission of water vapor therethrough but is substantially impermeable to liquid water.
Specification