Pool vacuum

Details Pool vacuum Pool vacuum

2006-11-09

2009-12-29

Graham, Gary K (Department: 3727)

Brushing, scrubbing, and general cleaning

Submerged cleaners with ambient flow guides

C015S350000, C015S415100, C015S344000, C210S416200

Reexamination Certificate

active

07636975

ABSTRACT:
An improved pool vacuum includes a filter cone and poppet valve combination which enables quick drainage of water which has passed through and been cleaned by the cleaner's filter. A charging circuit is provided with isolation so that the pool vacuum can be used in an electrolytic environment without battery drainage. A combination charger and hang bracket enables the pool vacuum to be stored in a vertical position to both drain and charge simultaneously. An interstitial open exhaust gap between a rear body and nose-cone shaped front section provides a low pressure drop free exhaust area for an impeller. An optionally obstructed bottom gap portion helps to produce a net downward thrust to assist in using the vacuum in deep pools from a long pole structure.

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patent: 7060182 (2006-06-01), Erlich et al.
patent: 2004/0094083 (2004-05-01), Mazin
patent: 2005/0247613 (2005-11-01), Bishop et al.
patent: 2253512 (1992-09-01), None

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