System for creating a water void display
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United States of America Patent
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Jul 12, 2011
Grant Date -
Oct 8, 2009
app pub date -
Apr 4, 2008
filing date -
Apr 4, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A liquid management system comprising a first chamber that has a first boundary wall, and a second chamber that has a second boundary wall. The second chamber has a base surrounded by the second boundary wall and the second boundary wall is within the first boundary wall. The second boundary wall height is lower than the first boundary wall height. The liquid management system also comprises a liquid level control module for controlling i) a first level of the liquid within the first chamber, and ii) a second level of the liquid within the second chamber. The liquid level control module is operable to lower the second level of the liquid in the second chamber below the second wall height while concurrently maintaining the surface level of the liquid in the first chamber higher than the second wall height such that the liquid within the first chamber flows over the second boundary wall from the first chamber into the second chamber to form a void in the liquid, the void has liquid sides inside the second boundary wall.
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