Liquid purification or separation – With heater or heat exchanger – With treating fluid addition
Reexamination Certificate
2006-04-18
2006-04-18
Popovics, Robert James (Department: 1724)
Liquid purification or separation
With heater or heat exchanger
With treating fluid addition
C210S198100, C210S275000, C210S290000
Reexamination Certificate
active
07029578
ABSTRACT:
A system suitable for the elimination ofCryptosporidiumoocysts from water includes a filter bed comprising four layers of inert particulate material such that, from the top layer (first layer) to the bottom layer (fourth layer), the coarseness of the particles decreases while the density of the particulate material increases.
REFERENCES:
patent: 293745 (1884-02-01), Hyatt
patent: 3471025 (1969-10-01), Dobson
patent: 3876546 (1975-04-01), Hsiung et al.
patent: 4102786 (1978-07-01), Okada et al.
patent: 4166037 (1979-08-01), Montagnon
patent: 4187175 (1980-02-01), Roberts et al.
patent: 4197205 (1980-04-01), Hirs
patent: 4668405 (1987-05-01), Boze
patent: 5164085 (1992-11-01), Spokoiny et al.
patent: 5205932 (1993-04-01), Solomon et al.
patent: 5552046 (1996-09-01), Johnston et al.
patent: 5804062 (1998-09-01), Wyness
patent: 2004/0129653 (2004-07-01), Spruce
patent: 1110559 (1968-04-01), None
patent: 1487914 (1977-10-01), None
patent: 10000476 (1998-01-01), None
patent: WO96/20139 (1996-07-01), None
patent: WO98/19766 (1998-05-01), None
Bracewell & Giuliani LLP
Popovics Robert James
Spruce International Separations
Woodruff T.
LandOfFree
Water treatment system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Water treatment system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water treatment system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3568993