Self ionizing pleated air filter system
April 4, 2021. 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 2588111 2729302 3181284 Electrostatic filter dust collector Electrostatic filter dust collector Electrostatically enhanced HEPA filter Pleated charged media air filter Safe ionizing field electrically enhanced filter and process for safely ionizing a field of an electrically enhanced filter Electric dust collector system Ion injector for air handling systems InventorApplicationNo. 824539 filed on 04/04/2001US Classes:96/67, Zigzag running length55/521, ZIGZAG, CORRUGATED, OR CONICAL55/524, With coating, impregnant, or bonding agent95/59, Electrode treating (e.g., coating, cleaning, etc.)96/69, Layered, laminated, or coated96/96, Filamentary or filar form264/129, WITH PRINTING OR COATING OF WORKPIECE (OUT OF MOLD)264/286, Corrugating264/287And subsequent reshaping of corrugated materialExaminersPrimary: Chiesa, Richard L.Attorney, Agent or FirmInternational ClassesB03C 003/41B29C 053/04 AbstractA pleated filter is provided with electrically conductive fibrous material that releases ions to improve trapping efficiency. The edges of folded filter media are rendered emitting as by attaching conductive strings to the edges of the folds. The ends of the fibers in the strings are left exposed and, by applying high voltage on these strings, ions may be produced which charge dust particles to improve the filter's efficiency. Alternately, the pleated medium itself provides ion-emitting fiber ends along folded edges that have been rendered conductive.Field of SearchZigzag running lengthLayered, laminated, or coated Filamentary or filar form Electrode treating (e.g., coating, cleaning, etc.) ZIGZAG, CORRUGATED, OR CONICAL With coating, impregnant, or bonding agent Corrugating WITH PRINTING OR COATING OF WORKPIECE (OUT OF MOLD) And subsequent reshaping of corrugated material Coating with particulate material | |
