Machine coolant recycling system
Patent 5399262 Issued on March 21, 1995. Estimated Expiration Date: 
August 30, 2013. 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.
August 30, 2013. 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 3849245 Portable apparatus and method for purifying lubricating oil in various devices Recycling of metalworking fluids Coolant processing system Coolant recycling system and method Process and apparatus for re-cycling engine coolant Machine coolant reclamation apparatus Local reclamation system Patent #: 5262047 InventorsAssigneeApplicationNo. 114327 filed on 08/30/1993US Classes:210/195.1, Serially connected distinct treating or storage units210/202, Diverse type210/221.2, And gas injecting means other than by mechanical agitation210/295, Including a filter210/313, Valve controlled210/322, PLURAL DISTINCT SEPARATORS210/512.1TANGENTIAL FLOW OR CENTRIFUGAL FLUID ACTIONExaminersPrimary: Dawson, Robert A.Assistant: Reifsnyder, David A. Attorney, Agent or FirmInternational ClassesB01D 036/02B01D 017/035 B01D 021/26 AbstractA machine coolant recycling system has a holding tank in which machine coolant to be recycled is accumulated. The machine coolant in the holding tank is continuously filtered for a predetermined period of time and the surface of the machine coolant is continuously skimmed to remove undesired contaminants therefrom. The machine coolant from the holding tank is supplied to a centrifuge where it is centrifuged and is then pumped to a blending tank where it is chemically tested and reconstituted to its original composition. The machine coolant is then again continuously filtered until it is needed.Other References
Field of SearchLubricationSerially connected distinct treating or storage units Diverse type Filters And gas injecting means other than by mechanical agitation WITH MOVABLE SUPPORT TANGENTIAL FLOW OR CENTRIFUGAL FLUID ACTION Cascade With pump, gas pressure or vacuum source Including a filter Valve controlled PLURAL DISTINCT SEPARATORS Parallel filters with flow controller RECIRCULATION Cyclonic, or centrifugal (e.g., whirling or helical motion or by vortex, etc.) And recirculating liquid Purification means | |
