Water purification apparatus

Details Water purification apparatus Water purification apparatus

2007-01-23

2007-01-23

Fortuna, Ana (Department: 1723)

Liquid purification or separation

Processes

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

C047S079000, C047S080000, C047S081000, C047S083000, C047S085000

Reexamination Certificate

active

10718845

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: 2222815 (1940-11-01), Johnson
patent: 2315949 (1943-04-01), Fischer
patent: 2814161 (1957-11-01), Hawkins
patent: 2904479 (1959-09-01), Mccord et al.
patent: 3415719 (1968-12-01), Telkes
patent: 3534497 (1970-10-01), Hornbostel
patent: 3648845 (1972-03-01), Riley
patent: 3858499 (1975-01-01), Scott
patent: 4034506 (1977-07-01), Kasahara et al.
patent: 4096663 (1978-06-01), Silver
patent: 4098021 (1978-07-01), Gruber
patent: 4182582 (1980-01-01), Youval et al.
patent: 4216623 (1980-08-01), Silver
patent: 4493870 (1985-01-01), Vrouenraets et al.
patent: 4517316 (1985-05-01), Mason
patent: 4661254 (1987-04-01), Zupancic et al.
patent: 4698135 (1987-10-01), Raab
patent: 4698372 (1987-10-01), Moss
patent: 4725481 (1988-02-01), Ostapchenko
patent: 4769273 (1988-09-01), Hoeschele et al.
patent: 4805343 (1989-02-01), Patterson et al.
patent: 4832690 (1989-05-01), Kuu
patent: 4908984 (1990-03-01), Lenke
patent: 4920105 (1990-04-01), Zelman
patent: 4926585 (1990-05-01), Dreschel
patent: 4939865 (1990-07-01), Whitcomb et al.
patent: 4978505 (1990-12-01), Kertz
patent: 5067272 (1991-11-01), Constantz
patent: 5348691 (1994-09-01), McElroy et al.
patent: 5374138 (1994-12-01), Byles
patent: 5383943 (1995-01-01), Ogawa et al.
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: 5664369 (1997-09-01), Kertz
patent: 5753008 (1998-05-01), Friesen et al.
patent: 5860245 (1999-01-01), Welch et al.
patent: 5890703 (1999-04-01), Kaus et al.
patent: 5951204 (1999-09-01), Roberts et al.
patent: 5974735 (1999-11-01), Behrens
patent: 5989697 (1999-11-01), Gebben et al.
patent: 6102204 (2000-08-01), Castleberry
patent: 6173531 (2001-01-01), Howell
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: 6511052 (2003-01-01), Tonkin et al.
patent: 6615537 (2003-09-01), Tonkin et al.
patent: 6679991 (2004-01-01), Van Andel
patent: 6793824 (2004-09-01), Tonkin et al.
patent: 6887385 (2005-05-01), 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: 0 238 941 (1987-09-01), None
patent: 0 268 556 (1988-05-01), None
patent: 0 521 726 (1993-01-01), None
patent: 0622488 (1994-04-01), None
patent: 0 154 971 (1995-09-01), None
patent: 0 791 620 (1997-08-01), 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 95/24260 (1995-09-01), None
patent: WO 99/40031 (1999-08-01), None
patent: WO 00/28807 (2000-05-01), 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.
Japanese PatentAbstract, JP04063522 A, Eisai Seikaken KK and Nitto Denco Corp., Oct. 6, 1993.
Japanese Patent Abstract, JP11-189726 A, Mitsui Petrochem Ind. Co. Ltd., “High Oxygen and Moisture Permeable Resin Composition for Films”, Jul. 13, 1999.

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