Filter apparatus backwash removal device and backwash...

Details Filter apparatus backwash removal device and backwash... Filter apparatus backwash removal device and backwash...

2005-01-14

2008-10-14

Lithgow, Thomas M (Department: 1797)

Liquid purification or separation

Processes

Separating

C210S795000, C210S807000, C210S350000

Reexamination Certificate

active

07435351

ABSTRACT:
A filter media backwash removal method and device for transporting backwash fluid and solids away from re-entering a housing containing circulating filter media.

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patent: 2003/0111431 (2003-06-01), Dew, Jr.
patent: 101 01 313 (2001-07-01), None
patent: WO 02/07849 (2002-01-01), None
patent: WO 02/24306 (2002-03-01), None
CSO Treatment Facilities, Uptown Park Water Resources Facility in Columbus, Georgia, with comments and pictures provided by the Applicants, 1994.

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