SELF-CONTAINED CHECK VALVE MODULE
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United States of America Patent
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-
N/A
Issued Date -
Aug 23, 2007
app pub date -
Feb 17, 2006
filing date -
Feb 17, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A check valve module for use in a backflow preventer. The check valve module includes a housing, a valve element positioned in the housing and moveable between a closed position and an open position, and a spring retainer. The spring retainer includes at least one outwardly extending projection adapted to be received and secured in a recess positioned on an end of the housing. A spring is positioned between the spring retainer and the valve element for biasing the valve element towards the closed position and biasing the spring retainer to a locking position where the projection is secured in the recess.
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Family
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Cited Art Landscape
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