Back pressure capable solenoid operated diaphragm pilot valve
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United States of America Patent
Stats
-
May 27, 2014
Grant Date -
Apr 11, 2013
app pub date -
Oct 10, 2011
filing date -
Oct 10, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A valve assembly comprising an inlet port, an outlet port, and a diaphragm configured to selectively allow communication between the inlet port and the outlet port, the diaphragm including a first side adjacent the ports and a second side opposed to the ports. The valve preferably includes at least one bleed path between the first side and the second side of the diaphragm with a one way flow device configured to allow flow from the first side to the second side of the diaphragm and prevent flow from the second side to the first side of the diaphragm. The valve may include a first bleed path from the inlet port to the second side of the diaphragm and a second bleed path from the outlet port to the second side of the diaphragm. Either bleed path, or both, may comprise a check valve mounted in the diaphragm.
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