Title:
FILTERING DEVICE AND METHOD OF MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2010/093026
Kind Code:
A1
Abstract:
A filtering device (1) which includes a depth filter (10) and a housing (9) for containing the depth filter and which has a primary filtering unit (4) for filtering raw water (RW). The housing (9) is provided with a raw water supply opening (18) for supplying the raw water (RW) to the depth filter (10), a filtered-water take-out opening (16), a fluid supply opening (24) for supplying reverse washing fluid to the depth filter (10), and a discharge opening (22) for discharging fluid (A) having reversely washed the depth filter (10) and also discharging the raw water (RW). The diameter of pores in a filtering film which forms the depth filter (10) is in the range from 1 to 25 μm. The filtering device is also provided with a communication path (15) for connection between a filtered-water path (8) connected to the filtered-water take-out opening (16) and a discharge path (14) connected to the discharge opening (22), and with a fifth automatic on-off valve (MV5) for opening and closing the communication path (15).
Inventors:
INOUE KEIDO (JP)
Application Number:
PCT/JP2010/052105
Publication Date:
August 19, 2010
Filing Date:
February 12, 2010
Export Citation:
Assignee:
KURARAY CO (JP)
INOUE KEIDO (JP)
INOUE KEIDO (JP)
International Classes:
B01D29/11; B01D29/66; B01D61/04; B01D61/16; B01D61/58; B63B13/00
Domestic Patent References:
WO2007097046A1 | 2007-08-30 |
Foreign References:
JP2007533429A | 2007-11-22 | |||
JP2007326065A | 2007-12-20 | |||
JP2009032872A | 2009-02-12 | |||
JP2009260648A | 2009-11-05 | |||
JP2002096064A | 2002-04-02 |
Other References:
See also references of EP 2397209A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
Shuji Sugimoto (JP)
Download PDF:
Previous Patent: WO/2010/093025
Next Patent: METAL THIN FILM-PLASTIC FILM COMPOSITE FILM WITH LINEAR STREAKS AND APPARATUS FOR PRODUCING SAME
Next Patent: METAL THIN FILM-PLASTIC FILM COMPOSITE FILM WITH LINEAR STREAKS AND APPARATUS FOR PRODUCING SAME