Machine coolant treatment method
Patent 5599457 Issued on February 4, 1997. Estimated Expiration Date: 
April 21, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 21, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2297817 3890254 Filter for separating discrete solid elements from a fluid stream Titanium and titanium hydride reticulates and method for making Unitized electrode-intercell connector module Method of making an open pore structure Coolant recycler Foam absorber Foam absorber Patent #: 5185381 InventorsAssigneeApplicationNo. 230677 filed on 04/21/1994US Classes:210/669, Prior to ion exchange or sorption210/688, Heavy metal210/693, Oil removed210/776, Skimming210/805, And recirculating liquid210/806Plural separatingExaminersPrimary: Cintins, IvarsAttorney, Agent or FirmInternational ClassB01D 015/00AbstractA 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. | |
