Pool pump filter

Details Pool pump filter Pool pump filter

2006-10-03

2006-10-03

Popovics, Robert James (Department: 1724)

Liquid purification or separation

Processes

Separating

C210S167150, C210S232000, C210S315000, C210S338000, C210S487000, C055S482000

Reexamination Certificate

active

07115204

ABSTRACT:
A filter comprises a cage that captures a foraminous center tube. The cage comprises end plates secured to multiple posts. A screen is wrapped with at least one full inner wrap around the center tube and with at least one full outer wrap around the posts. The screen is held in place with elastic bands or the like that surround and press the outer wrap against the posts. The center tube may be free to move within the cage. Alternately, the center tube, end plates, and posts may be integral with each other. When inserted into a chamber, liquid flows through the screen outer and inner wraps in two stages. The liquid then flows through holes in the center tube, through the interior of the center tube, and out the chamber. The filter is cleaned by unwrapping the screen, cleaning it, and rewrapping it over the center tube and posts.

REFERENCES:
patent: 3486626 (1969-12-01), Close
patent: 4052317 (1977-10-01), Palnik
patent: 4811559 (1989-03-01), Henkel
patent: 4848989 (1989-07-01), Maeda
patent: 4988437 (1991-01-01), Gefter et al.
patent: 5028323 (1991-07-01), Gould et al.
patent: 5338446 (1994-08-01), Schuman et al.
patent: 6299763 (2001-10-01), Ashman
patent: 6555013 (2003-04-01), Nakamura et al.
patent: 6860394 (2005-03-01), Mueller et al.

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