Liquid purification or separation – Serially connected distinct treating with or without storage... – With storage unit
Reexamination Certificate
2007-09-11
2007-09-11
Fortuna, Ana (Department: 1723)
Liquid purification or separation
Serially connected distinct treating with or without storage...
With storage unit
C210S261000, C210S266000, C210S283000, C210S264000, C210S321830, C210S321860, C210S232000, C210S487000
Reexamination Certificate
active
10949127
ABSTRACT:
A water purification system includes an activated carbon filter and a reverse-osmosis (RO) filter. The activated carbon filter is typically formed with a central aperture that receives an upper portion of a central tube. The RO filter, which is positioned downstream from the carbon filter, may be formed around a perforated section of the central tube. The system further includes a head that is structured to receive a sump that contains the carbon and RO filters, as well as the central tube. An inlet formed in the head enables unpurified feed water to flow into the carbon filter. A first channel, which is defined by an annular surface formed in the carbon filter and an outer surface of the central tube, enables water to flow into the RO filter. A channel within the central tube enables water to flow from the RO filter, through the perforated sections of the central tube, and into an outlet formed within the head.
REFERENCES:
patent: 3504796 (1970-04-01), Bray
patent: 3542199 (1970-11-01), Bray et al.
patent: 4609463 (1986-09-01), Macevicz et al.
patent: 4711723 (1987-12-01), Bray
patent: 4713175 (1987-12-01), Bray
patent: 4842724 (1989-06-01), Bray et al.
patent: 5102542 (1992-04-01), Lawrence et al.
patent: 5151180 (1992-09-01), Giordano et al.
patent: 5160038 (1992-11-01), Harada et al.
patent: 5221473 (1993-06-01), Burrows
patent: 5269919 (1993-12-01), von Medlin
patent: 5296148 (1994-03-01), Colangelo et al.
patent: 6024867 (2000-02-01), Parise
patent: 6190558 (2001-02-01), Robbins et al.
patent: 6436282 (2002-08-01), Gundrum et al.
patent: 6569329 (2003-05-01), Nohren, Jr.
patent: 6861002 (2005-03-01), Hughes
patent: 6986843 (2006-01-01), Tochikubo et al.
Fortuna Ana
International Environmental Technologies, LLC
The Maxham Firm
LandOfFree
Water purification system utilizing a carbon block pre-filter 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 purification system utilizing a carbon block pre-filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water purification system utilizing a carbon block pre-filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3788915