Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Reexamination Certificate
2008-03-18
2008-03-18
Lithgow, Thomas M. (Department: 1724)
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
C210S705000, C210S706000, C210S725000, C210S727000, C210S735000
Reexamination Certificate
active
07344647
ABSTRACT:
Recycled waste water is treated to remove contaminants and produce a sludge cake with a high percentage of solids and to produce a treated recycled waste water that can be discharged into a municipal sewer system.
REFERENCES:
patent: 3147217 (1964-09-01), Halton
patent: 3314880 (1967-04-01), Rubin
patent: 3617539 (1971-11-01), Grutsch et al.
patent: 3707464 (1972-12-01), Burns et al.
patent: 3959131 (1976-05-01), Ramirez et al.
patent: 3969245 (1976-07-01), Ramirez
patent: 3975269 (1976-08-01), Ramirez
patent: 4031006 (1977-06-01), Ramirez et al.
patent: 4108768 (1978-08-01), Sebelik et al.
patent: 4179369 (1979-12-01), Bradley et al.
patent: 4338192 (1982-07-01), Krasnoff et al.
patent: 4737272 (1988-04-01), Szatkowski et al.
patent: 4738750 (1988-04-01), Ackel
patent: 4784764 (1988-11-01), Klienschnittger et al.
patent: 4981599 (1991-01-01), Stewart, Jr.
patent: 5275732 (1994-01-01), Wang et al.
patent: 5308499 (1994-05-01), Dixon et al.
patent: 5364529 (1994-11-01), Morin et al.
patent: 5423981 (1995-06-01), Krieger
patent: 5540836 (1996-07-01), Coyne
patent: 5543043 (1996-08-01), Bates et al.
patent: 5658462 (1997-08-01), Hopkins et al.
patent: 5766484 (1998-06-01), Petit et al.
patent: 2003/0141254 (2003-07-01), Stewart
patent: 2004/0173538 (2004-09-01), Stewart
patent: WO 91/08175 (1991-06-01), None
Baker Donelson Bearman Caldwell & Berkowitz PC
Lithgow Thomas M.
Stewart Water Solutions, Ltd.
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