| 摘要 |
A vacuum frame, comprising a base section, a cover hingeably attached to the base section and including a transparent section, the cover and base section forming a vacuum chamber therebetween when the vacuum frame is in a closed position, a reserve vacuum tank in fluid communication with the vacuum chamber, the vacuum tank adapted to create a vacuum within the vacuum chamber, a vacuum pump in fluid communication with the reserve vacuum tank, the vacuum pump adapted to create a vacuum within the reserve vacuum tank, and an electro-mechanical means for simultaneously regulating the vacuum pressure within the vacuum chamber and reserve vacuum tank and the actuation of the vacuum pump.
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