Filter device for garden ponds or similar

Details Filter device for garden ponds or similar Filter device for garden ponds or similar

2006-08-22

2006-08-22

Prince, Fred G. (Department: 1724)

Liquid purification or separation

Filter

With movable means to compress medium

C210S351000

Reexamination Certificate

active

07093720

ABSTRACT:
A filter device for filtering flowing liquids comprises a compressible filter medium in a vessel and a device by which the filter medium can be compressed by means of an actuation handle, so that impurities can be pressed out of the filter medium. In addition, the filter device contains a multipath regulator which can be adjusted for filtering, back-rinsing and clear-rinsing by means of three flow paths. It is also possible for the filter device to be outfitted exclusively with a multipath regulator or a compressing device.

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patent: 953637 (1910-03-01), McCollom
patent: 1758412 (1930-05-01), Sheppy
patent: 4350590 (1982-09-01), Robinson
patent: 101 01 313 (2001-07-01), None
patent: 0 259 000 (1988-03-01), None
patent: 1 282 217 (1972-07-01), None
patent: 60038010 (1985-02-01), None
Bulletin for bioforce filter system, 2002.

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