System and method for washing articles employing a densified cleaning solution, and use of a fluid displacement device therein
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United States of America Patent
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Mar 24, 2015
Grant Date -
Dec 6, 2012
app pub date -
Dec 17, 2010
filing date -
Jan 5, 2010
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Abstract
A dry cleaning system arranged for washing articles employing a cleaning solution. The dry cleaning system includes a wash tank (2) for washing an article to be washed with a cleaning solution. The wash tank (2) is arranged for washing the article at an increased pressure compared to atmospheric pressure. The dry cleaning system includes a fluid displacement device (1), such as a pump, connected to the wash tank (2) and is arranged for transferring the cleaning solution through the dry cleaning system in a first operational mode. The fluid displacement device is arranged to reduce the pressure in the wash tank towards atmospheric pressure in a second operational mode.
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