Water treatment apparatus and method

Liquid purification or separation – Processes – Ion exchange or selective sorption

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C210S683000, C210S688000, C210S694000, C210S266000, C210S282000, C210S283000, C210S284000, C210S242400, C210S290000

Reexamination Certificate

active

07413663

ABSTRACT:
A water treatment apparatus includes a housing comprising multiple housing portions and a plurality of treatment sections disposed within the housing, each treatment section comprising at least one distinct particulate layer. The apparatus is designed so that no water pressure need be applied to force the water through the apparatus, as gravity pulls the water down through the filtering layers. Water may also be force fed through the treatment apparatus; when the water is force fed, the housing portions need not be vertically stacked, but may be configured in any suitable arrangement. The treatment sections are distributed through the various housing portions in logical groups to perform various kinds of filtering. The housing portions are detachable and sealably stackable in multiple configurations, thus passing water through more or fewer treatment layers, depending on the quality of the incoming water.

REFERENCES:
patent: 260106 (1882-06-01), Long
patent: 1730581 (1929-10-01), McMachen et al.
patent: 2087442 (1937-07-01), Nack
patent: 2334802 (1943-11-01), Zuckermann
patent: 3250703 (1966-05-01), Levendusky
patent: 3319791 (1967-05-01), Horne
patent: 3342340 (1967-09-01), Shindell
patent: 4025426 (1977-05-01), Anderson et al.
patent: 4198296 (1980-04-01), Doumas et al.
patent: 4264451 (1981-04-01), Pope et al.
patent: 4368123 (1983-01-01), Stanley
patent: 4382862 (1983-05-01), Dillman
patent: 4430226 (1984-02-01), Hegde et al.
patent: 4606823 (1986-08-01), Lucas, III
patent: 4749481 (1988-06-01), Wheatley
patent: 4769143 (1988-09-01), Deutsch et al.
patent: 4800018 (1989-01-01), Moser
patent: 4855046 (1989-08-01), Meehan
patent: 4894154 (1990-01-01), Roz et al.
patent: 4904382 (1990-02-01), Thomsen
patent: 4944875 (1990-07-01), Gaignet
patent: 4995976 (1991-02-01), Vermes et al.
patent: 4999109 (1991-03-01), Sabre
patent: 5059317 (1991-10-01), Marius et al.
patent: 5061367 (1991-10-01), Hatch et al.
patent: 5064534 (1991-11-01), Busch et al.
patent: 5078874 (1992-01-01), Sullivan
patent: 5106501 (1992-04-01), Yang et al.
patent: 5110479 (1992-05-01), Frommer et al.
patent: 5126044 (1992-06-01), Magnusson et al.
patent: 5149437 (1992-09-01), Wilkinson et al.
patent: 5190643 (1993-03-01), Duncan et al.
patent: 5205932 (1993-04-01), Solomon et al.
patent: 5211851 (1993-05-01), Meurer
patent: 5211973 (1993-05-01), Nohren, Jr.
patent: 5215657 (1993-06-01), Goldfield et al.
patent: 5240620 (1993-08-01), Shalev
patent: 5269919 (1993-12-01), Von Medlin
patent: 5271837 (1993-12-01), Discepolo et al.
patent: 5273649 (1993-12-01), Magnusson et al.
patent: 5275737 (1994-01-01), Heskett
patent: 5308482 (1994-05-01), Mead
patent: 5338458 (1994-08-01), Carrubba et al.
patent: 5399260 (1995-03-01), Eldredge et al.
patent: 5401399 (1995-03-01), Magnusson et al.
patent: 5405526 (1995-04-01), Sutera
patent: 5407573 (1995-04-01), Hughes
patent: 5415770 (1995-05-01), Heskett
patent: 5427683 (1995-06-01), Gershon et al.
patent: 5569380 (1996-10-01), Sullivan
patent: 5635063 (1997-06-01), Rajan et al.
patent: 5707514 (1998-01-01), Yamasaki et al.
patent: 5830360 (1998-11-01), Mozayeni
patent: 6572769 (2003-06-01), Rajan et al.
patent: 7276161 (2007-10-01), Rajan et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Water treatment apparatus and method 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 apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water treatment apparatus and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4003831

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.