Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – Removable cartridge or hand-manipulated container
Reexamination Certificate
2006-03-10
2008-09-30
Smith, Duane (Department: 1797)
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
Removable cartridge or hand-manipulated container
C210S266000
Reexamination Certificate
active
07429326
ABSTRACT:
The invention relates to a two-stage design for a water purification system, with water to be purified first passing through a first stage containing particulate filtration media, and a second stage containing a porous filtration block. The particulate filtration media can be the same as, or different from, material included in the porous block. Either material may be any material that removes contaminants from water by, e.g., absorption, adsorption, ion exchange, sequestration, or other mechanism, or any combination of these.
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Buchanan & Ingersoll & Rooney PC
Selecto. Inc.
Smith Duane
Turner Sonji
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