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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...
8097054 Dust filter bag  
A dust filter bag is in the shape of a flat bag for a vacuum cleaner, which is formed from a first layer and a second layer made of a weldable material. The layers are welded together...
8087124 Vacuum cleaner and disposable vacuum cleaner bag  
The disclosed disposable vacuum cleaner has a disposable bag with a collar at the bottom, rather than on the sides. Dirty air enters the bag vertically, rather than horizontally, through a duct...
8080076 Nonwoven layer for a filter and filter medium  
The invention is directed to a nonwoven layer for a filter, in particular, for a vacuum cleaner bag, wherein at least one region of the nonwoven layer, the region having a predetermined thickness...
8070858 Filter bag for a vacuum cleaner and use thereof  
A filter bag for a vacuum cleaner includes at least three layers, at least two layers which include at least one nonwoven fabric layer and one nonwoven fibre layer being connected by a weld, a high...
8070862 Dust collection device for sanding tool  
A dust collection device for a sanding tool comprising a bag having a sidewall and a coupler attached to the bag. The sidewall comprising a first filter layer, a second filter layer, and an outer...
8066803 Vacuum cleaner filter bag  
The invention relates to vacuum cleaner filter bag with a bag wall made of a filter material, wherein the bag wall and/or the interior of the vacuum cleaner filter bag comprise fibres containing a...
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...
8002862 Filter bag and method for the production thereof  
Described is a filter bag for a vacuum cleaner which may include a tubular bag with a closed free end area and an opposed, at least partially closed area as well as with a retaining plate. The bag...
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...
7964007 Filter bag for use in dust collector  
Provided is a filter bag for use in a dust collector which increases a filter area greatly even with a simple structure, and which makes size of the dust collector compact, to thereby reduce an...
7955407 Filtration element having a variable density sidewall  
A filter made of specifically arranged filaments. The filter has an upstream side where fluid enters and a downstream side where fluid exits. The filaments are greatest in diameter near the...
7744683 Transparent filterable dust bag with support container for vacuum cleaner  
The removable apparatus of a transparent filterable dust bag with a support container is designed as an attachment for a vacuum cleaner and like. A transparent filterable dust bag having an outer...
7744680 Vacuum-cleaner bag and method for extending the service life of vacuum-cleaner bags  
Described is a vacuum-cleaner bag which is made of an air-permeable filter material and forms a closed dust-collecting chamber, the vacuum-cleaner bag containing a material which can be whirled up...
7691186 Conductive bead active field polarized media air cleaner  
A pleated filter media includes a plurality of parallel conductive beads to support the media and space the pleated surfaces apart. A high voltage differential applied between adjacent conductive...
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...
7501003 Composite filter media  
The invention provides a renewable composite filter media for removal of particles from a fluid stream. The filter media includes a membrane filtration layer comprising a porous polymeric membrane...
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...
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...
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...
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...
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...
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...
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.
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,...
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...
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...
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...
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...
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,...
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...
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...
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...
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...
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...
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...
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....
6251154 Dust bag and method of production  
A dust bag comprises a filter bag consisting of a filter material. In a first wall portion of the filter bag, an inlet opening is provided through which the air flow to be cleaned gets into the...
6199602 Large drums for high-dispersion, high air content solids, and a method for filling them  
A large drum for containing high dispersion, high air content solids for repeated filling and emptying by means of vacuum filling plants and a method for filling them. The drums consist of at least...
6193773 Dust filter bag  
A dust filter bag made of a fiber layer laminated together with a paper layer. The fiber layer is made of synthetic polymer fibers and is arranged on the downstream side of the paper layer. To...
6183536 Enhanced performance vacuum cleaner bag and method of operation  
A vacuum filter bag is constructed of layers which include a high air permeability multipurpose layer positioned upstream in the direction of air flow of a second filtration layer. The second...
6171369 Vacuum cleaner bag construction and method of operation  
A disposable vacuum cleaner filter bag is constructed of layers which include a filtration grade meltblown fleece layer having a basis weight of about 10-50 g/m2 and air permeability of about...
6156086 Dual media vacuum filter bag  
There is provided a vacuum cleaner filer bag including at least two sidewalls which sidewalls are joined by seams. At least one first sidewall comprises a film laminate of a heat sealable film...
6045595 Dust filter bag  
A dust filter bag made of a fiber layer laminated together with a paper layer, where the fiber layer is composed of polymer fibers and is arranged on the downstream-gas side of the paper layer.
6010548 Spaced pocket filter assembly and method of manufacturing same  
A spaced pocket filter assembly has a pocket secured to a holding frame and a spacing member within the pocket made of a single sheet of material. The spacing member has an alternately folded Z or...
5785725 Polymeric fiber and glass fiber composite filter media  
A composite filter media for bag or pocket filters and the like includes an upstream dirt-holding layer of fine polymeric fibers and a downstream high efficiency filtration layer of glass fibers....
5780126 Filter material  
Fluid permeable filter material comprising a self supporting fluid permeable wall and a fluid permeable filter layer. The self supporting wall comprises ceramic oxide fibers, ceramic oxide...
5753001 Filter unit and process for manufacturing a filter unit  
A self-supporting filter unit having at least one passage (10) defined by wall portions (12) made from air-permeable fiber fabric, through which wall portions air can pass and be drawn off along...
5690711 Vacuum bag with reinforcement patch  
In a vacuum bag for a vacuum cleaner having a dirt-laden air outlet, the vacuum bag includes an air-permeable outer bag formed of paper, an air-permeable inner bag formed of meltblown material...
5667544 Extended life filter apparatus  
A particulate filter for a fluid stream being of preselected thickness with progressively increasing fibrous density from the upstream face toward the downstream face, the filter having a...
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