Filter accessory for use in swimming pool water flow system

Details Filter accessory for use in swimming pool water flow system Filter accessory for use in swimming pool water flow system

2005-11-08

2005-11-08

Prince, Fred G. (Department: 1724)

Liquid purification or separation

Structural installation

Closed circulating system

C210S416200, C210S448000

Reexamination Certificate

active

06962655

ABSTRACT:
A basket that is used in a pool cleaning system includes a flap that is biased closed and is opened against the bias by water flowing into the basket. When a pump drawing water out of a pool moves water through the basket, debris in the water is trapped in the basket. However, when the pump is shut off, any back flow of water associated with the pump shut off will not cause debris to move out of the basket because the flap will be shut by the bias and the backward movement of water.

REFERENCES:
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patent: 5336400 (1994-08-01), Patrice
patent: 5350508 (1994-09-01), Van der Watt
patent: 5938804 (1999-08-01), Engel et al.
patent: 6106706 (2000-08-01), Roy et al.
patent: 6572765 (2003-06-01), Lincke

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