Filtration unit
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United States of America Patent
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Mar 27, 2012
Grant Date -
Nov 19, 2009
app pub date -
Nov 13, 2006
filing date -
Dec 9, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A filtration unit (A) is immersed in raw water (W) that is held inside a reservoir tank, and includes a membrane module (5) that filters the introduced raw water (W). This filtration unit (A) includes a casing (3) which is in the shape of a box having a bottom and includes the membrane module (5) housed therein, and an activated carbon cartridge (4) inside which activated carbon is provided in cartridge form. Inside the casing (3) are provided an intake port that is used to introduce the raw water into the interior of the casing, and an opening/closing device that is installed on this intake port and controls a flow of the raw water into the interior of the casing, and the activated carbon cartridge (4) side and the membrane module (5) side are separated so as to allow the raw water (W) introduced into the interior of the casing 3 to circulate from the activated carbon cartridge (4) side to the membrane module (5) side.
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