Rotary disk filter with backwash
Patent 5855799 Issued on January 5, 1999. Estimated Expiration Date: 
December 19, 2016. 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.
December 19, 2016. 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 ReferencesInventorAssigneeApplicationNo. 770232 filed on 12/19/1996US Classes:210/780, Including movement of filter during filtration210/330, Connected for group operation210/331, Spaced filter wall type, e.g., multiple hollow leaves210/406, Vacuumized filtrate receiver210/411, Backwash or blowback210/791Rehabilitating or regenerating filter mediumExaminersPrimary: Popovics, Robert J.Attorney, Agent or FirmForeign Patent References
International ClassesB01D 037/00B01D 033/15 AbstractA high capacity filter apparatus for removing solids from fluids includes a opposing filter elements defining an internal volume. Fluid to be filtered passes through the filter elements into the internal volume and through an outlet. The filter element is continuously cleaned by backwashing along the outer surface of the elements.Field of SearchRotary movement of filter or mechanical cleanerBackwash or blowback Plural cleaners and plural movable elements Connected for group operation Spaced filter wall type, e.g., multiple hollow leaves Sequential backwash Backwash or blowback Radial or radially connected to central header Backwash or blowback and additional cleaner Vacuumized filtrate receiver Backwash or blowback Including movement of filter during filtration Rehabilitating or regenerating filter medium | |
