SEALING VALVE
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United States of America Patent
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app pub date -
Jun 26, 2017
filing date -
Jul 6, 2016
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Abstract
A sealing valve is provided with a valve seat including a valve hole, a valve element to open and close the valve hole, and a seal member to seal between the valve element and the valve seat during full closing. The seal member includes a fixed part fixed to the valve seat, a contact part to be brought into contact with a seal surface of the valve element, and a constricted part provided between the fixed part and the contact part. The contact part is rotatable about the constricted part.
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