Full-drain type vacuum breaker
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United States of America Patent
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Aug 1, 2017
Grant Date -
N/A
app pub date -
Mar 28, 2016
filing date -
Mar 28, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vacuum breaker includes a safe valve body and an elastic gasket. The safe valve body has a receiving space which has a periphery provided with connecting holes. The elastic gasket has a size smaller than that of the receiving space, with clearances being defined between the elastic gasket and the receiving space. The elastic gasket has a center provided with a through hole and has an outer periphery provided with a sealing portion. Thus, the sealing portion contracts inward when water stops passing the safe valve body, so that ambient air flows into the receiving space to break a vacuum state in the safe valve body, such that a fluid contained in the safe valve body flows through the clearances between the elastic gasket and the safe valve body, and is drained outward from the connecting holes.
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