Water purification apparatus

Details Water purification apparatus Water purification apparatus

2005-05-03

2005-05-03

Fortuna, Ana M. (Department: 1723)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C095S045000, C095S052000, C096S004000, C210S323200, C047S066700, C047S05810R, C047S065500

Reexamination Certificate

active

06887385

ABSTRACT:
The present invention relates to the use of a hydrophilic membrane to provide by the process of pervaporation through the membrane water suitable for agricultural irrigation, industrial use, hydrating or rehydrating of food or agricultural or pharmaceutical compositions. The present invention also relates to a water purification apparatus which includes the hydrophilic membrane, comprising one or more layers of hydrophilic polymers, to purify water which may contain suspended or dissolved impurities and solids, including but not limited to seawater, brackish water and other kinds of polluted water.

REFERENCES:
patent: 2904479 (1959-09-01), Mccord et al.
patent: 3415719 (1968-12-01), Telkes
patent: 3648845 (1972-03-01), Riley
patent: 3858499 (1975-01-01), Scott
patent: 4182582 (1980-01-01), Youval et al.
patent: 4493870 (1985-01-01), Vrouenraets et al.
patent: 4517316 (1985-05-01), Mason et al.
patent: 4698372 (1987-10-01), Moss
patent: 4725481 (1988-02-01), Ostapchenko
patent: 4769273 (1988-09-01), Hoeschele et al.
patent: 4832690 (1989-05-01), Kuu
patent: 4920105 (1990-04-01), Zelman
patent: 4926585 (1990-05-01), Dreschel
patent: 4978505 (1990-12-01), Kertz
patent: 5348691 (1994-09-01), McElroy et al.
patent: 5374138 (1994-12-01), Byles
patent: 5522790 (1996-06-01), Moll et al.
patent: 5534150 (1996-07-01), Bastioli et al.
patent: 5547586 (1996-08-01), Halperin et al.
patent: 5595662 (1997-01-01), Sanderson
patent: 5657577 (1997-08-01), Rodder
patent: 5753008 (1998-05-01), Friesen et al.
patent: 5890703 (1999-04-01), Kaus et al.
patent: 5989697 (1999-11-01), Gebben
patent: 6187696 (2001-02-01), Lim et al.
patent: 6453610 (2002-09-01), Tonkin et al.
patent: 6484439 (2002-11-01), Tonkin et al.
patent: 6679991 (2004-01-01), Van Andel
patent: 6793824 (2004-09-01), Tonkin et al.
patent: 29 08 479 (1980-08-01), None
patent: 40 24 405 (1992-02-01), None
patent: 0 238 941 (1987-09-01), None
patent: 0 268 556 (1988-05-01), None
patent: 0 521 726 (1993-01-01), None
patent: 0 154 971 (1995-09-01), None
patent: 0 808 657 (1997-11-01), None
patent: 2 746 255 (1997-09-01), None
patent: 2 265 536 (1993-10-01), None
patent: 1648291 (1991-05-01), None
patent: WO 95 03033 (1995-02-01), None
patent: WO 9524260 (1995-09-01), None
PCT International Search Report dated Sep. 17, 1999.
Patent Abstracts of Japan.
E. Korngold et al., “Water desalination by pervaporation with hollow fiber membranes”, Desalination, vol. 107, No. 2, (1996) 121-129.
ASTM Designation: E96-95, Standard Test Methods for Water Vapor Transmission of Materials, May 1995, pp. 719-726.

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