Vacuum Breaker
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United States of America Patent
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Issued Date -
Sep 6, 2018
app pub date -
Mar 6, 2017
filing date -
Mar 6, 2017
priority date (Note) -
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Abstract
A vacuum breaker includes a main body, a bushing, an elastic member, a braking member, a water stop gasket, a water inlet disk and a washer. The interior of the main body is provided with a positioning groove. The bushing is made of metallic material and has an exterior provided with a positioning protrusion secured in and combined integrally with the positioning groove of the main body. The bushing is extruded outward by an oil pressure to form the positioning protrusion. Thus, the bushing is combined with the main body integrally and will not be detached from the main body.
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