Pool filter with a pre-filtering unit

Details Pool filter with a pre-filtering unit Pool filter with a pre-filtering unit

2007-09-04

2007-09-04

Smith, Duane (Department: 1724)

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With spaced non-particulate separating means

C210S316000, C210S418000

Reexamination Certificate

active

10526056

ABSTRACT:
The invention relates to a pool filter comprising a housing, which can be supported on a ground side on the base, a longitudinal axis and a transversal axis, and a water inlet, a channel outlet and a pool outlet which are embodied in the housing wall thereof. A flow path from the water inlet to the pool outlet is embodied in the housing on the filter in the filter system and a filter device is arranged in the flow path. The invention is characterised in that a pre-filtering unit is arranged in the flow path in front of the filter device.

REFERENCES:
patent: 3833123 (1974-09-01), Walker
patent: 3884811 (1975-05-01), Chattaway et al.
patent: 3957634 (1976-05-01), Orensten et al.
patent: 5292431 (1994-03-01), Romagnoli
patent: 5294335 (1994-03-01), Chiang
patent: 2004/0094470 (2004-05-01), Jackson
patent: 0 958 850 (1999-11-01), None
patent: 2 146 255 (1985-04-01), None
patent: 2 307 421 (1997-05-01), None
patent: 2 367 506 (2002-04-01), None
patent: 2 371 244 (2002-07-01), None
patent: WO 01 16034 (2001-03-01), None

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