Water tank filter and purifier

Details Water tank filter and purifier Water tank filter and purifier

2006-09-26

2006-09-26

Prince, Fred G. (Department: 1724)

Liquid purification or separation

Structural installation

Closed circulating system

C210S263000, C210S315000, C210S416200, C210S484000, C119S259000

Reexamination Certificate

active

07112275

ABSTRACT:
A water tank filter having a double structure including an inner filter having a small pore size for trapping fine particles of filth from tank water and situated within a hollow outer filter having a large pore size for trapping coarse particles of filth. The inner filter is situated in roughly the upper half of the internal space of the outer filter. Disclosed also is a water tank purifier including the water tank filter. The water tank filter and purifier can effectively remove both coarse and fine particles of filth from a water tank. The filter does not quickly get clogged, and is easy to handle.

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patent: 46-6036 (1971-02-01), None
patent: 8-71542 (1996-03-01), None
patent: 2003-000096 (2003-01-01), None
Patent Abstracts of Japan for JP2003-000096 published on Jan. 7, 2003.

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