VACUUM ISOLATION DEVICE
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United States of America Patent
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-
N/A
Issued Date -
Sep 18, 2014
app pub date -
Mar 13, 2013
filing date -
Mar 13, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A vacuum isolation device includes: a frame seat, at least one gas hole portion being formed thereon; a seal band set, configured on one side of the frame seat; a door plate element, mounted on the seal band set; and a vacuum generating device, connected with the gas hole portion, where a gas passageway is formed between seal bands, and the gas hole portion is in communication with the gas passageway. A vacuum state is formed in the gas passageway through the gas hole portion when the vacuum generating device is operated through the above structure, causing the door plate element to be attached onto the seal band set by means of vacuum operation while the vacuum generating device is operated. Thereupon, gas will be drawn out via the gas hole portion when it leaks from the inside or outside, thereby achieving the prevention of gas leak.
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