SEALING VALVE COVER USED IN SPUTUM SUCTION PIPE
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United States of America Patent
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Issued Date -
Jun 6, 2013
app pub date -
Dec 2, 2011
filing date -
Dec 2, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A sealing vale cover used in a sputum suction pipe, which is mounted in a sputum suction pipe, includes a valve body and an elastic contractible cover. The valve body has a hollow interior and an open end. The elastic contractible cover seals the other end of the valve body. The inner wall surface of the elastic contractible cover is provided with a contact rib. The contact rib extends radially and outwardly from the top of an inner wall surface of the elastic contractible cover. The contact rib is formed with an arc-shaped surface on its protruding portion. When a long conduit of the sputum suction pipe is disposed through the elastic contractible cover, the arc-shaped surface of the contact rib is brought into contact with the outer surface of the long conduit, thereby preventing the leakage of the sputum.
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