Liquid purification or separation – Processes – Separating
Reexamination Certificate
2011-08-09
2011-08-09
Cecil, Terry (Department: 1778)
Liquid purification or separation
Processes
Separating
Reexamination Certificate
active
07993532
ABSTRACT:
The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth filter media.
REFERENCES:
patent: 4428838 (1984-01-01), Creps et al.
patent: 498037 (1992-08-01), None
Baumann Peter G.
Bergmann Eugen O.
Johnson Lloyd W.
Smith David
Aqua-Aerobic Systems, Inc.
Cecil Terry
Niro Haller & Niro
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