| 摘要 |
A vacuum sealing device comprises a lid having a rigid rim with a lower o pening for receiving a dish, an impermeable elastic membrane peripherally af fixed to the rigid rim for sealing the dish, and a valve-less air evacuator formed between the elastic membrane and the dish rim which allows air to flo w out of the dish when the lid is being pressed and becomes closed when the lid is released to cause said lid to rebound to form a vacuum in the dish. T he rigid rim prevents lid deformation when the lid is pressed, thus enabling the vacuum formation. To facilitate lid removal, the device has a valve-les s vacuum releaser comprising a finger-receiving chamber and a section of the elastic membrane located above the chamber and connected to the rigid rim f or releasing the vacuum in the dish.
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