Check valve
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United States of America Patent
Stats
-
Apr 22, 2008
Grant Date -
Jul 19, 2007
app pub date -
Dec 20, 2006
filing date -
Jun 22, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A check valve is provided, including a first hose connector housing defining an entry passage and a first valve seat, a second hose connector housing engaging the first hose connector housing and defining an exit passage, a generally flexible, perforate membrane disk positioned between the first and second hose connector housings and pretensioned against the first valve seat to selectively sealingly separate the first and second hose connector housings, and a one-way relief valve fluidly connected with the exit passage and configured to permit venting of the exit passage upon overpressurization thereof.
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