Water purification cartridge

Details Water purification cartridge Water purification cartridge

2003-10-01

2008-10-28

Kim, John (Department: 1797)

Liquid purification or separation

Filter

Resting on supporting receiver, e.g., portable

C210S232000, C210S256000, C210S282000, C210S455000, C210S456000, C210S503000, C210S753000, C210S754000

Reexamination Certificate

active

07441665

ABSTRACT:
The water purification cartridge treats water with a halogen liberated from halogenated hydantoinyl resins and polymers, resulting in the safe, complete, and economical purification of non-potable water at low flow rates typically found in gravity feed filtration systems and at water pressures of less than 1 psig. The cartridge of the invention purifies non-potable water of bacteria, viruses, and some protozons without the need for additional power sources or risk to the consumer for exposure to chemicals that have been identified to have harmful, long-term effects. The cartridge described herein enables a gravity fed water purification system by combining the cartridge with conventional filters, such as porous diatomaceous earthen ceramic water filters or activated carbon filters packed either with granular activated carbon or block.

REFERENCES:
patent: 2584551 (1952-02-01), Chambers et al.
patent: 3909414 (1975-09-01), Drath
patent: 4594392 (1986-06-01), Hatch
patent: 4609463 (1986-09-01), Macevicz et al.
patent: 4640774 (1987-02-01), Garcera et al.
patent: 4714546 (1987-12-01), Solomon et al.
patent: 5057612 (1991-10-01), Worley et al.
patent: 5061367 (1991-10-01), Hatch et al.
patent: 5211973 (1993-05-01), Nohren, Jr.
patent: 5308482 (1994-05-01), Mead
patent: 5407573 (1995-04-01), Hughes
patent: 5472606 (1995-12-01), Steere et al.
patent: 5490983 (1996-02-01), Worley et al.
patent: 5498333 (1996-03-01), Canther
patent: 5518613 (1996-05-01), Koczur et al.
patent: 5562824 (1996-10-01), Magnusson
patent: 5882357 (1999-03-01), Sun et al.
patent: 5897770 (1999-04-01), Hatch et al.
patent: 5902818 (1999-05-01), Worley et al.
patent: 6156202 (2000-12-01), Singh et al.
patent: 6187192 (2001-02-01), Johnston et al.
patent: 6274038 (2001-08-01), Reid
patent: 6294185 (2001-09-01), Worley et al.
patent: 6419821 (2002-07-01), Gadgil et al.
patent: 6469177 (2002-10-01), Worley et al.
patent: 6524477 (2003-02-01), Hughes
patent: 6548054 (2003-04-01), Worley et al.
patent: 6555000 (2003-04-01), Knight
patent: 6602425 (2003-08-01), Gadgil et al.
patent: 2004/0149642 (2004-08-01), Vandenbelt et al.
patent: WO 2004/000732 (2003-12-01), None

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