Ornamental pond

Liquid purification or separation – Structural installation – Closed circulating system

Reexamination Certificate

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Details

C210S170050, C210S259000, C210S263000, C210S747300, C210S602000

Reexamination Certificate

active

06843910

ABSTRACT:
A decorative aquatic pond as found in residential gardens or the like having: an impervious liner defining a pond and confining a quantity of water within the pond, a filtration system comprising: a secondary pool separated from the pond by a pervious wall, a skimmer basin located within the secondary pool adjacent the pervious wall and adapted to receive surface water into the basin from the pond, a catch net disposed within the skimmer basin, a cover affixed over a major portion of the catch basin, a bottom drain disposed along the bottom of the pool distal the pond, a quantity of filter rock filling the pond externally of the basin and overlying the cover and the perforated conduit, and a submersible pump housed within the basin and pumping water from the basin and the perforated conduit to a return path to the pond. Aquatic plants are rooted in the filter rock to aid in processing the water drawn through the rocks into the pump.

REFERENCES:
patent: 4276164 (1981-06-01), Martone et al.
patent: 4368120 (1983-01-01), Martone et al.
patent: 5584991 (1996-12-01), Wittstock et al.
patent: 5993649 (1999-11-01), DeBusk et al.
patent: 6290844 (2001-09-01), Tennyson, Jr.
patent: 6740232 (2004-05-01), Beaulieu
patent: 3918803 (1990-12-01), None
patent: 11-197653 (1999-07-01), None

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