Bi-directional valve
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United States of America Patent
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-
N/A
Issued Date -
Sep 18, 2008
app pub date -
Feb 7, 2008
filing date -
Feb 7, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A bi-directional valve having a housing with at least one internal gasket contact surface. A spring holds the plate, flapper and gasket against the internal gasket contact surface of the housing. When a predetermined pressure acts on the plate and flapper, the plate, flapper and gasket move away from the gasket contact surface to allow flow through the bi-directional valve in a first direction. To flow in the opposite direction the plate and gasket abut against the housing and the flapper opens to allow flow in an opposite direction. The same flow path is used for flow in either direction through the bi-directional valve.
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