Method and system for raising a liquid using a pressurised gas and a buoyant, movable interface member
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United States of America Patent
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Mar 20, 2012
Grant Date -
Feb 19, 2009
app pub date -
Mar 16, 2006
filing date -
Mar 17, 2005
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Abstract
A method and a device for extracting a liquid from a liquid pond, wherein in a first phase air is removed from an airtight reservoir, a venting and a rising pipe in order to create depression therein and a suck-up of the liquid in the liquid pond. In a second phase, a distribution device is brought from a first to a second operating position in order to supply pressurized gas to said venting pipe which has an outlet connected to the rising pipe. In a third phase the liquid is pushed from the venting pipe to the rising pipe and thereafter to the reservoir by means of pressurized air and an interface member. In a fourth phase the distribution device is brought back to its first operation position.
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