| 摘要 |
A closure device consisting of a screen for a refrigerator case such as an open-top chest or a display case. In its closed position, the device performs the function of a heat-insulating barrier against reheating by convection. In its open position, the device performs the function of a shield against reheating by radiation. The screen structure can be inflated with air or with a fluid having lower density than air. The device can thus be displaced with great ease and can be maintained in its open shielding position by a maximum number of two lightweight supports. |
