Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line
Reexamination Certificate
2011-06-07
2011-06-07
Bastianelli, John (Department: 3753)
Fluid handling
Back flow prevention by vacuum breaking
Air vent in liquid flow line
C137S888000, C137S895000
Reexamination Certificate
active
07954507
ABSTRACT:
An eductor for mixing two liquids wherein the eductor includes a closed or non-air gap back flow prevention member. The vacuum profile of the eductor is altered by changing an opening in a passage portion to controllably divert water flow around the venturi tube or diverting the water without the opening. This affords the changing of the vacuum profile without redesigning the entire eductor.
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Boticki John A.
Bournoville James L.
Lohr James H.
Bastianelli John
Bollis Gregory S.
Diversey, Inc.
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