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Patent Searching and Data


Title:
FILTER ELEMENT AND BACKWASH-TYPE FILTRATION DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2014/027491
Kind Code:
A1
Abstract:
Provided is a filter element (10) that is installed on a backwash-type filtration device (W) and that filters a fluid flowing within said device. The filter element (10) comprises: a filter material (11) formed to have a hollow cylindrical shape that is open at both ends; an upper cover section (12) that closes the upper end section of the filter material (11); a guide rod (13) that is attached to the upper cover section (12) and that extends from the upper end section toward the lower end section of the filter material (11) within the hollow section of the filter material (11); an upper hole (12a) that passes through the upper cover section (12); and a valve body (14) that is slidably supported by the guide rod (13) and that opens and closes the upper hole (12a) by moving along the guide rod (13) in accordance with the pressure of the fluid flowing within the hollow section of the filter material (11).

Inventors:
KOI KENICHI (JP)
NONAKA KAZUTAKA (JP)
YAMADA NORIO (JP)
MATSUO TAKASHI (JP)
Application Number:
JP2013/064354
Publication Date:
February 20, 2014
Filing Date:
May 23, 2013
Export Citation:
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Assignee:
KANAGAWA KIKI KOGYO CO LTD (JP)
International Classes:
B01D29/66; B01D29/11; B01D29/33; B01D29/50; B01D29/62
Foreign References:
JPH10113513A1998-05-06
JP2005034812A2005-02-10
JPS4863377U1973-08-11
JPS5264980U1977-05-13
Attorney, Agent or Firm:
TAKAHASHI Ryuji et al. (JP)
Patent attorney Ryuji Takahashi (JP)
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