Liquid purification or separation – Processes – Separating
Reexamination Certificate
2007-01-16
2008-12-30
Popovics, Robert James (Department: 1797)
Liquid purification or separation
Processes
Separating
C210S189000, C210S275000, C210S289000, C210S291000, C210S136000, C210S097000, C210S090000
Reexamination Certificate
active
07470372
ABSTRACT:
A device for the treatment of an influent with a porous media. The influent passes radially through the porous media and into an internal volume of the device. The treated influent then passes through an open check valve in the internal volume, and then to downstream equipment. During a backwash operation, a backwash fluid is passed into the internal volume of the device in a direction to close the check valve. The blocked path in the internal volume of the device causes the backwash fluid to pass radially outwardly into the porous media and fluidize the same.
REFERENCES:
patent: 1671864 (1928-05-01), Higgins
patent: 1993142 (1935-03-01), Johnson
patent: 3415382 (1968-12-01), Martin
patent: 3458436 (1969-07-01), Martinola et al.
patent: 3568833 (1971-03-01), Ritzen
patent: 4019985 (1977-04-01), Fuller et al.
patent: 4021339 (1977-05-01), Foody
patent: 4643836 (1987-02-01), Schmid
patent: 6322704 (2001-11-01), Martin
patent: 6852232 (2005-02-01), Martin
patent: 7163621 (2007-01-01), Martin
patent: 2002/0030017 (2002-03-01), Martin
patent: 2005/0133432 (2005-06-01), Martin
patent: WO 9744111 (1997-11-01), None
patent: WO 2005000745 (2005-01-01), None
“Glass Bed Precision Filters” Product Brochure, 1976 (12 pages).
Chauza P.C. Roger N.
Popovics Robert James
LandOfFree
Fluid treatment device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid treatment device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid treatment device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4042034