Filtration device

Details Filtration device Filtration device

2011-07-12

2011-07-12

Reifsnyder, David A (Department: 1776)

Liquid purification or separation

Magnetic

With additional separator

C210S222000, C210S695000

Reexamination Certificate

active

07976704

ABSTRACT:
A filtration device is provided with a filter tank, filter media unit, and magnet. The filter media unit includes a filter media accommodation case and a large number of magnetic granular filter media. The magnet is movable between first and second positions. In the first position, a magnetic field is applied to the magnetic granular filter media, so that the magnetic granular filter media magnetically attract one another. In the second position, magnetic attraction between the magnetic granular filter media is canceled. The filter media accommodation case includes a nonmagnetic mesh member of a nonmagnetic material and magnetism intensification plate of a magnetic material. When the magnet is in the first position, the magnetic granular filter media and nonmagnetic mesh member are located between the magnetism intensification plate and the magnet.

REFERENCES:
patent: 2452220 (1946-10-01), Bower
patent: 7504032 (2009-03-01), Tashiro
patent: 2008/0093285 (2008-04-01), Tashiro
patent: 11-77479 (1999-03-01), None
patent: 2006-305417 (2006-11-01), None
patent: 2007-105706 (2007-04-01), None
International Search Report established in PCT/JP2008/065457, Sep. 22, 2008.
Search Report of Intellectual Property Office of Singapore regarding Singapore Patent Application No. 200903334-1, Oct. 20, 2009.
Supplementary European Search Report and Search Opinion for PCT/JP2008/065457, Sep. 10, 2010.

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