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| Number | Title | Issue Date |
| 8152879 | Filter bag for a vacuum cleaner and also use thereof A filter bag for a vacuum cleaner made of a composite material including at least three layers, at least two layers which include a nonwoven fabric layer and at least one nonwoven fiber layer being connected by a weld. ... | 04/10/2012 |
| 8052769 | Filter bag and method for the production thereof A filter bag for a vacuum cleaner includes a tubular bag made of a casing which has at least one nonwoven layer. The casing has a first end region which is sealed at least partially and a second sealed end region situated opposite the first end region. The first end... | 11/08/2011 |
| 7981177 | Filtration media having a slit-film layer A composite filter media for a vacuum cleaner comprising a first filtration layer comprising a slit film having a plurality of continuous electrostatically-charged polyolefin filaments disposed substantially parallel to each other along their lengths; and a second f... | 07/19/2011 |
| 7648542 | Static dissipative glass filtration fabric A bag house filtration system in which the filter media includes a woven textile formed from glass yarns other high temperature resistant yarns. A first bath is applied to the textile which contains a conductive component, a first fluoropolymer and a lubricant (in s... | 01/19/2010 |
| 7332010 | High pressure filter/separator and locking mechanism Disclosed is a two or three phase separator including a centrifugal separator, a demister (if a three phase separator), and a filter contained within a housing. The filter uses an outside-in flow principle. The filter includes an inner layer or a center core that de... | 02/19/2008 |
| 7329296 | Filter bag and a filter device provided with such filter bag A filter bag (1) for a filter device includes a tubular, flexible, air-penetrable filter body (6) provided with a suspension arrangement at an unfolded end thereof. The suspension arrangement includes a rigid ring element (7) with outwardly prot... | 02/12/2008 |
| 7318852 | Bag house filter with fine fiber and spun bonded media Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful ap... | 01/15/2008 |
| 7314497 | Filter medium and structure Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile f... | 01/01/2008 |
| 7309372 | Filter medium and structure Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile f... | 12/18/2007 |
| 7280311 | Disk drive including a filter component with coarse and fine sections There is provided a disk drive including a disk drive base, a disk rotatably coupled to the disk drive base, and a spindle motor attached to the disk drive base and configured to support the disk for rotating the disk with respect to the disk drive base. The disk dr... | 10/09/2007 |
| 7279021 | Suction device/blower A manually-guided, portable suction device/blower is provided, and includes a blower unit having a motor for driving the blower unit, a blower tube that extends from the blower unit, a collection bag, wherein during suction operation of the suction device/blower, th... | 10/09/2007 |
| 7263996 | Anion emission and anti-dust nose mask The present invention relates to an anion emission and anti-dust nose mask capable of enhancing a compatibility so that it is well adapted to various sizes and types of nose based on its flexibility, and it is possible to wear without any string based on a pressure ... | 09/04/2007 |
| 7179317 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful ap... | 02/20/2007 |
| 7160498 | Closed molding tool A flexible molding component used with a base mold improves on existing methods of forming fiber reinforced composite parts. The molding component is formed of a flexible body structure having an interfacing surface and a perimeter region including a perimeter seal ... | 01/09/2007 |
| 7146681 | Upright vacuum cleaner with cyclonic airflow A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an... | 12/12/2006 |
| 7144438 | Dust collecting container for vacuum cleaner A dust collecting container for a vacuum cleaner is removably mounted in a suction chamber of a cleaner body to filter a dust from a dust-laden air being drawn into the suction chamber through an air suction hole that is connected with the outside. The dust collecti... | 12/05/2006 |
| 7137409 | Multilayered pressure vessel and method of manufacturing the same A multilayered pressure vessel (10) fabricated from at least one single ply sheet of flexible material (100) having an approximate longitudinal midline which divides the material into an inner portion (130) having an inner surface, an outer surf... | 11/21/2006 |
| 7138057 | Filter media In one aspect, the invention provides an article consisting essentially of a paper layer including about 10 Wt % to about 40 Wt % of a thermoplastic polymer and an ePTFE membrane laminated to the paper layer. Preferably, the paper layer includes about 10 Wt % to abo... | 11/21/2006 |
| 7115151 | High efficiency particulate air rated vacuum bag media and an associated method of production A vacuum bag media and associated method of production, which includes a first layer that includes an expanded polytetrafluoroethylene membrane and at least one second layer that includes a first component having a first melting point and a second component having a... | 10/03/2006 |
| 7094270 | Composite filter and method of making the same The invention refers to a composite filter for filtering a stream of ambient air including at least one non-prebonded upstream tier and one non-prebonded downstream tier, wherein the ratio of absolute pore volume of upstream tier to downstream tier RAPV>2, and the a... | 08/22/2006 |
| 7090772 | Filter bag assembly A filter bag assembly includes an outer bag having an open end, a closed end opposite the open end, and a longitudinal axis. The open end of the outer bag is sized and shaped for receiving liquid to be filtered. A filter member is loosely mounted in the outer bag an... | 08/15/2006 |
| 7073670 | High capacity depth filter bag A filter element for hydrocarbon emissions in, e.g., marine diesel engine applications, comprises a wound mat received within a filter bag. An annular end cap is bonded to one end of the wound mat, and is sealed around its periphery to a bag ring at the open end of ... | 07/11/2006 |
| 7055334 | Air-conditioning unit and air-conditioning apparatus incorporating same An indoor air-conditioning unit 10 which can effectively deactivate allergens includes an intake grill 11 for drawing in indoor air. Indoor heat exchangers 13, 14, and 15 exchange heat between air drawn in from the intake grill 11 ... | 06/06/2006 |
| 7008465 | Cleanable high efficiency filter media structure and applications for use An improved cartridge, typically in cylindrical or panel form that can be used in a dry or wet/dry vacuum cleaner. The cartridge is cleanable using a stream of service water, or by rapping on a solid object, or by using a compressed gas stream, but can provide excep... | 03/07/2006 |
| 6966939 | Multi-layer filter structure and use of a multi-layer filter structure The invention describes a multi-layer filter structure and the use of a multi-layer filter structure for the dust removal from gases, wherein a coarse dust filter layer, a fine dust filter layer, and a support layer are disposed behind one another in the direction f... | 11/22/2005 |
| 6966444 | Filter with snap-fit filter bag A filter element includes a bag ring which is snap fitted into the filter vessel sidewall and retains both the filter element and a filter basket in the desired location in the vessel until removed. ... | 11/22/2005 |
| 6872233 | High efficiency particulate air rated vacuum bag media and an associated method of production A vacuum bag media and associated method of production, which includes a first layer that includes an expanded polytetrafluoroethylene membrane and at least one second layer that includes a first component having a first melting point and a second component having a... | 03/29/2005 |
| 6858057 | Filter media A filter media comprising a synthetic microfiber polymer fine fiber web wherein the diameter of the fibers is between about 0.8 to about 1.5 microns. The filter media is acceptable for use in ASHRAE applications. Constructions with a low DP backing, support or prefi... | 02/22/2005 |
| 6740142 | Industrial bag house elements The filter structures commonly known as a bag house or a filter bag or an air filter with a bag construction can be made by preparing the bag assembly, either in a tubular or a bi-fold construction by placing a layer of fine fiber on the upstream surface of the filt... | 05/25/2004 |
| 6706086 | Dust filter bag including a highly porous backing material ply A dust filter bag having a highly porous backing material ply and a method for producing the dust filter bag. The dust filter bag includes at least one filter material ply and at least one backing material ply, the backing material ply possessing an air permeability... | 03/16/2004 |
| 6706085 | Filter bag cage A filter assembly for filtering particulates out of a stream of gas, which includes an elongated filter bag made out of fabric with a plurality of pleats intermediate its ends with a support cage made from a plurality of wires on the outside of the bag having portio... | 03/16/2004 |
| 6669761 | Air filter having electrostatically active nonwoven fabric inliners and their use A multi-layer air filter is described, including a filter layer which is covered by a prefilter layer on the dust-laden gas side, which has a laid dry electrostatically effective nonwoven fabric, preferably a staple fiber nonwoven fabric, whose area weigh... | 12/30/2003 |
| 6663684 | Dust collecting filter cloth and bag filter Provided are a dust-collecting filter cloth that comprises a base fabric and web, wherein at least the web includes modified cross-section fibers of polyphenylene sulfide; and a bag filter made of the filter cloth. When fitted to an exhaust gas dust colle... | 12/16/2003 |
| 6651825 | Disposable net assemblies for apparatus for collecting floating debris A disposable net assembly is provided for a trap for collecting floatable debris in a waterway or combined sewer system. The net assembly includes a knitted bag-shaped mesh net having a frame surrounding the mouth of the net with the net secured around it... | 11/25/2003 |
| 6524360 | Melt blown composite HEPA filter media and vacuum bag An electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of filtration challenges without significant decay in alpha values over time. P... | 02/25/2003 |
| 6524359 | Filter bag for a pocket air filter and method for the production thereof A filter bag for a pocket air filter includes two side walls. Both lateral edges of the side walls, and the edge of the base are welded to each other. The side walls are made of an air-permeable filter material which can be ultrasonically welded, and at l... | 02/25/2003 |
| 6514325 | Melt blown composite HEPA vacuum filter An electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of filtration challenges without significant decay in alpha values over time. P... | 02/04/2003 |
| 6395046 | Dust filter bag containing nano non-woven tissue A dust filter bag constituted of a plurality of layers including at least one carrier material and at least one non-woven tissue layer wherein the at least one non-woven tissue layer has a nano non-woven tissue with an average fiber diameter of 10 to 1000... | 05/28/2002 |
| 6379409 | Dust bag The invention relates to a dust bag to be used primarily in vacuum cleaners, the dust bag having at least two opposing wall portions of filter material in an overlaying state and an intake opening for receiving a socket piece of a vacuum cleaner. The two ... | 04/30/2002 |
| 6372004 | High efficiency depth filter and methods of forming the same A composite filter for removing particulates entrained in a gas has stack of at least two non-pre-bonded tiers of filter material which are bonded together to form a unitary stratified structure. The tiers can include thermally bindable components such as... | 04/16/2002 |
