Patent application number | Description | Published |
20090049810 | DUST FILTRATION BAG AND FRAME APPARATUS AND METHOD - Presented is an improved dust filtration unit of the type characterized by a filter bag having a plurality of pockets conjoined to a unitary opening, the opening having a collar that extends circumferentially around the opening, and a frame for supporting individual pockets and circumferentially supporting the opening. The improvement includes the frame having circumferential sidewalls with substantially vertical portions and top edges. A flange extends outwardly from the top edges to define a parameter and the filter bag includes an elastic hem at an outer edge of the collar. The bag is inserted within the sidewalls of the frame and the elastic hem edge of the collar is stretched over the flange for supporting attachment thereto. | 02-26-2009 |
20090126333 | Fine Fiber Electro-Spinning Equipment, Filter Media Systems and Methods - Electrostatic fine fiber generation equipment such as for forming nano-fibers from polymer solution is provided. The fine fiber generation equipment includes a strand that may take the form of a stainless steel beaded chain. The beaded chain can be an endless chain entrained upon two guide wheels and driven about an endless path perpendicularly relative to the collection media. | 05-21-2009 |
20090127747 | Apparatus and Method for Reducing Solvent Loss for Electro-Spinning of Fine Fibers - A method and apparatus for generation of fine fibers via electro-spinning from a polymer solution is provided. The spray or spinning electrode is dipped in a polymer solution to maintain a polymer solution coating on the electrode for electrostatic spinning of fine fibers. A cover provides an evaporation barrier that reduces solvent loss. The drive unit may move the electrode around the cover to facilitate dipping of part of the electrode while exposing another part of the electrode for electro-spinning of fine fibers. | 05-21-2009 |
20090199717 | Filtration Medias, Fine Fibers Under 100 Nanometers, and Methods - An electrospinning fine fiber production methodology for generating a significant amount of fibers with diameters of less than 100 nanometers is provided. Also, a filter media composite comprising a substrate layer and an electrospun fine fiber layer having a increased efficiency relative to pressure drop and/or a controlled pore size distribution is provided. According to some embodiments nylon is electrospun from a solvent combination of formic and acetic acids. | 08-13-2009 |
20090266759 | INTEGRATED NANOFIBER FILTER MEDIA - A filter media is formed from electrospun fine fibers and coarse fibers which are entangled and integrated together into a single fiber composite filter media layer. | 10-29-2009 |
20100181249 | Filter Having Melt-Blown and Electrospun Fibers - A multi-layer filter media including at least one layer of melt-blown fiber filter media and at least one layer of electrospun nanofiber filter media is provided. The multi-layer filter media of the present invention is configured such that the at least one layer of the melt-blown fiber filter media is on the upstream and the at least one electrospun nanofiber filter media is positioned downstream of the at lest one melt-blown fiber filter media. | 07-22-2010 |
20110114554 | MULTI-COMPONENT FILTER MEDIA WITH NANOFIBER ATTACHMENT - A composite filter media is formed from electrospun fine fibers and a multi-component substrate filter media comprising at least two different materials, one of which is a low melt polymeric material, wherein the low melt polymeric material acts as a bonding agent. | 05-19-2011 |
20110210059 | NON-PLEATED TUBULAR DEPTH FILTER HAVING FINE FIBER FILTRATION MEDIA - A non-pleated depth filter element in the form of a tubular ring of depth filter media is provided. Multiple wraps of sheets, some including fine fibers, are employed. The depth filter element has particular applications to liquid filtration applications. | 09-01-2011 |
20110210060 | EXPANDED COMPOSITE FILTER MEDIA INCLUDING NANOFIBER MATRIX AND METHOD - A composite filter media includes an expanded substrate media carrying fine fibers, wherein the fine fibers are extended with the expanding substrate media, thereby improving dust holding capacity and slowing down pressure drop increase. | 09-01-2011 |
20110210061 | COMPRESSED NANOFIBER COMPOSITE MEDIA - A coalescing media includes a compressed composite filter media comprising substrate layers and hydrophilic fine fiber layers for separating free water emulsified in fuels. | 09-01-2011 |
20110210081 | FINE FIBER LIQUID PARTICULATE FILTER MEDIA - A filter media for liquid particulate filtration applications is provided. The filter media includes a substrate and fine fibers, which are compressed together. | 09-01-2011 |
20110223330 | Fine Fiber Electro-Spinning Equipment, Filter Media Systems and Methods - Electrostatic fine fiber generation equipment such as for forming nano-fibers from polymer solution is provided. The fine fiber generation equipment includes a strand that may take the form of a stainless steel beaded chain. The beaded chain can be an endless chain entrained upon two guide wheels and driven about an endless path perpendicularly relative to the collection media. | 09-15-2011 |
20120255662 | INTEGRATED NANOFIBER FILTER MEDIA - A filter media is formed from electrospun fine fibers and coarse fibers which are entangled and integrated together into a single fiber composite filter media layer. | 10-11-2012 |
20130313736 | FILTRATION MEDIAS, FINE FIBERS UNDER 100 NANOMETERS, AND METHODS - An electrospinning fine fiber production methodology for generating a significant amount of fibers with diameters of less than 100 nanometers is provided. Also, a filter media composite comprising a substrate layer and an electrospun fine fiber layer having a increased efficiency relative to pressure drop and/or a controlled pore size distribution is provided. According to some embodiments nylon is electrospun from a solvent combination of formic and acetic acids. | 11-28-2013 |