| 摘要 |
A valve assembly mounted in a resealable/reclosable storage bag. The valve assembly includes a base and a valve element. The valve element includes a stem with a convex cap attached at one end and a valve gate attached at the opposite end. The stem extends into a hole in the base. The resilient quality of the cap, acting against the top of the base, holds the gate against the bottom of the base, thereby forming a seal between the gate and the base that is strong enough to preserve the vacuum inside the bag. A cavity extends into the stem from the cap end. A hole in the stem runs from the cavity to outside the stem. When the stem is pressed down, a vacuum source may draw air between the gate and the base, through the hole in the stem, into the cavity, and subsequently outside the bag.
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