Machine coolant treatment method
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United States of America Patent
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Feb 4, 1997
Issued Date -
N/A
app pub date -
Apr 21, 1994
filing date -
Sep 3, 1993
priority date (Note) -
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Abstract
A filtering apparatus and filtering method for removing free-oils, particulate matter and dissolved heavy metals from a machine coolant by withdrawing a portion of the machine coolant from a machine coolant reservoir through a skimmer assembly and thereafter passing the machine coolant through a filter assembly containing an oil absorbent, a particulate matter filter and a filter element having metal particles bound together in a porous metal sponge-like structure.
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