Umbrella valve and assembly
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United States of America Patent
Stats
-
Dec 4, 2007
Grant Date -
Jun 22, 2006
app pub date -
Dec 22, 2004
filing date -
Dec 22, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An umbrella valve includes an umbrella-valve body having a stem, a flexible umbrella, and a flange. The umbrella and the flange are each attached to, and extend radially outward from, the stem. The flange has at least one fluid passage. The umbrella valve can be placed in a valve housing having a sealing-surface portion. The umbrella, when the umbrella-valve body is placed in the valve housing, is pushed away from the sealing-surface portion under a forward fluid flow and is pushed against the sealing-surface portion under a reverse fluid flow. An umbrella-valve assembly includes the umbrella valve and the valve housing.
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