FILTER CLEANING SYSTEM AND FILTER CLEANING METHOD
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United States of America Patent
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Issued Date -
Mar 23, 2023
app pub date -
Jan 27, 2021
filing date -
Feb 5, 2020
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Abstract
A filter cleaning system includes a storage unit that stores liquid that is passed through a filter; a liquid supply path that sends the liquid stored in the storage unit to the filter; a circulation path that returns the liquid sent from the filter to the storage unit; a first supply unit that supplies a first liquid to the storage unit; and a second supply unit that supplies a second liquid having a surface tension lower than that of the first liquid and an affinity for the first liquid, to the storage unit.
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