Liquid purification or separation – Plural distinct separators – Filters
Reexamination Certificate
2011-07-19
2011-07-19
Cecil, Terry K (Department: 1778)
Liquid purification or separation
Plural distinct separators
Filters
C210S334000, C210S413000
Reexamination Certificate
active
07981290
ABSTRACT:
The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices, including improved cloth media filter backwashing using a rotating backwash arm assembly.
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Photos of system equivalent to that shown schematically in Figs 29, 30 & 31 of U.S. Patent 6,858,140.
Baumann Peter G.
Smith David
Aqua-Aerobic Systems, Inc.
Cecil Terry K
Niro Haller & Niro
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