Water feature
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United States of America Patent
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Jul 17, 2007
Grant Date -
Sep 26, 2002
app pub date -
Jan 28, 2002
filing date -
Feb 3, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides a water feature comprising a vessel containing a volume of water and means for imparting rotational motion thereto, wherein means are also provided for varying the height of the volume of water in the vessel. The invention also provides a method of operating a water feature comprising at least one vessel containing a volume of water, comprising the steps of causing the or a volume of water to rotate about an axis thereof so as to form a vortex therein and causing the rotating volume of water to vary in height over time.
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