Liquid purification or separation – Flow – fluid pressure or material level – responsive – Filter cleaning
Reexamination Certificate
2005-07-29
2008-08-19
Savage, Matthew O. (Department: 1797)
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Filter cleaning
C210S130000, C210S136000, C210S139000, C210S201000, C210S232000, C210S274000, C210S275000, C210S284000, C210S288000, C210S335000, C210S411000, C210S430000, C210S439000, C210S440000
Reexamination Certificate
active
07413649
ABSTRACT:
A fluid treatment system that includes at least one treatment module (“pod”) with rigid and impermeable inner and outer surfaces, and an annular center passage which is designed to provide an alternative flow path during the pod backwashing process. At least one chemical treatment media disposed in the interior portion of the pod. A riser extends upwardly through the pod so that the outer surface of the riser and the inner surface of the pod define the annular passage. At least one valve assembly controls the movement of a fluid within the annular passage. The pod is serviced by directing the fluid into the riser and then directing the fluid through the pod, a portion of the fluid flowing through the annular passage.
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Merriam-Webster Dictionary, 10th ed. (online edition).
Berenato White & Stavish
Savage Matthew O.
Stelling Lucas
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