Water filter

Details Water filter Water filter

2007-05-15

2007-05-15

Drodge, Joseph (Department: 1723)

Liquid purification or separation

With repair or assembling means

C137S801000, C210S436000, C210S449000, C210S455000, C210S456000, C210S472000

Reexamination Certificate

active

10788279

ABSTRACT:
The present invention relates to a water filter including an outer connector, an inner connector, a flow control sheet and a strainer. A flange extends from the periphery of the upper surface of the outer connector with at least two protrusions extending therefrom. A plurality of guiding ribs is formed at the inner surface of the sidewall of the outer connector near the bottom surface of the outer connector and radiating from the center of the outer connector. A board is formed at the inner surface of the sidewall of the outer connector connecting with upper ends of the guiding ribs. A plurality of puncturing posts projects from the upper surface of the board. A rim extends from the periphery of the upper surface of the inner connector with at least two positioning cutouts being defined therein. The inner connector is received in the outer connector with the positioning cutouts respectively engagingly receiving the protrusions of the outer connector. A plurality of annular posts is formed in the inner connector with a plurality of guiding apertures being defined therethrough. The guiding apertures are above the puncturing posts of the outer connector. Thus, the water filter is ready to disassemble for cleaning and easy to assemble or disassemble in a DIY manner. Furthermore, the water filter is simple and for which a mold is ready to design and fabricate with low cost thereby facilitating to mass-produce.

REFERENCES:
patent: 2382066 (1945-08-01), Klein
patent: 5769326 (1998-06-01), Muchenberger et al.
patent: 5885450 (1999-03-01), Reid
patent: 2005/0098485 (2005-05-01), Boyd et al.
patent: 2005/0279697 (2005-12-01), Stephenson et al.
U.S. Appl. No. 60/507,990, filed Oct. 1, 2003, Boyd et al.

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