Abstract: An image forming apparatus includes: a housing; a fixing device that is disposed in the housing and that heats an unfixed image made of developer to fix the unfixed image to a recording medium; an exhaust device having an air inlet through which air heated by the fixing device is sucked, an air outlet through which the air sucked through the air inlet is discharged from the housing, and a flow path portion having a flow path space through which the air flows from the air inlet to the air outlet; and a mesh member that is provided on the air inlet and that collects fine particles contained in the air that is sucked.

Abstract: The present invention relates to methods for the production of an improved integral connection of a retaining plate to the wall of a vacuum cleaner filter bag. According to a first variant, the retaining plate is not applied directly on the wall of the vacuum cleaner filter bag but rather a textile material is disposed between retaining plate and the wall. The connection of the retaining plate and the wall of the vacuum cleaner filter bag is thereby effected via the textile material. According to a second variant, in regions between retaining plate and wall of the vacuum cleaner filter bag, a film made of a thermoplastic material is disposed between wall of the vacuum cleaner filter bag and retaining plate. The connection of the retaining plate and the wall of the vacuum cleaner filter bag is thereby effected via the film. According to a third variant, the retaining plate is connected directly to the wall of the vacuum cleaner filter bag.

Abstract: The invention concerns spunbond nonwoven fabrics comprising a plurality of bicomponent filaments, the bicomponent filaments having a segmented pie cross-sectional configuration including a polycarbonate component and a polypropylene component, wherein a ratio of the polypropylene component to the polycarbonate component is between about 5:95 and about 95:5.

Abstract: The invention relates to a method for optimizing a vacuum cleaning system comprising a substantially hoseless and tubeless vacuum cleaning device and a filter bag, where the substantially hoseless and tubeless vacuum cleaning device comprises a motor-fan unit having a characteristic motor-fan curve, a filter bag receptacle, a connection port for the filter bag and a cleaning head, and where the filter bag comprises filter material made of nonwoven material, comprising the step of: adapting the characteristic motor-fan curve and the size, the shape and the material of the filter bag and the size and the shape of the filter bag receptacle and the inner diameter of the connection port for the filter bag and the cleaning head to each other such that the vacuum cleaning system achieves an efficiency of at least 30%, preferably of at least 34%, particularly preferably of at least 38% when vacuuming according to the Standard on a Standard carpet type Wilton with an empty filter bag, where vacuuming according to the

Abstract: A vacuum bag assembly may include a bagging film and a tube bag. The bagging film may have a bagging film length and may be positioned over a composite layup and sealed to a tool surface having an inside corner. The tube bag may have opposing tube ends and a tube bag length and may be positioned over the composite layup along a length of the inside corner. Each one of the tube ends may be sealed to the tool surface along a first portion of a tube end perimeter edge and may be sealed to the bagging film along a second portion of the tube end perimeter edge such that each one of the tube ends is openable to atmosphere.

Abstract: The Invention relates to a vacuum cleaner filter bag comprising a bag wall, wherein the bag wall comprises precisely one nonwoven layer in the form of a melt-spur microfibrous nonwoven layer.

Abstract: A vacuum cleaner filter bag is provided. The vacuum cleaner filter bag includes at least one side fold formed by two fold legs, and the vacuum cleaner filter bag is designed as a tubular bag, wherein, in a turned-in state, the at least one side fold has at least three edges, wherein two of the edges are formed by a respective weld seam, and wherein the side fold can be turned out with the edges formed by a weld seam.

Abstract: The invention relates to a vacuum cleaner filter bag having a filter medium comprising a first layer consisting of a netting, a perforated sheet or a perforated non-woven with an air permeability of at least 10,000 l/(m2 s), and a first fiber layer consisting of man-made fibers and/or vegetable fibers and connected to one side of the first layer.

Abstract: Various examples of the inventive subject matter include a method and corresponding system for fabricating a combination paint arrestance filter for use in the painting industry. Embodiments of the system include a single-stage combination filter having a number of first layer media pockets and a number of second layer media pockets arranged downstream of the first layer pockets. An opening of each of the first layer media pockets is arranged in parallel with one another to receive an incoming airflow into the single-stage combination filter. Each of the second layer media pockets is at least 99.97% efficient at removing 0.3 micron and larger particles at a face velocity on the filter of about 37 meters per minute.

Abstract: The invention relates to a vacuum cleaner filter bag having a composite material comprising a first layer consisting of a netting or a perforated sheet with an air permeability of at least 10,000 l/(m2 s), and a first fiber layer consisting of man-made fibers and/or vegetable fibers and connected to one side of the first layer.

Abstract: Various examples of the inventive subject matter include a method and corresponding system for fabricating a combination paint arrestance filter for use in the painting industry. Embodiments of the system include a single-stage combination filter having a number of first layer media pockets and a number of second layer media pockets arranged downstream of the first layer pockets. An opening of each of the first layer media pockets is arranged in parallel with one another to receive an incoming airflow into the single-stage combination filter. Each of the second layer media pockets is at least 99.97% efficient at removing 0.3 micron and larger particles at a face velocity on the filter of about 37 meters per minute.

Abstract: A block-base bag is for vacuum cleaners. The bag includes, in the interior thereof, a diffuser made of strips of material and/or sheet materials with oblong-shaped flow openings. Such bags are distinguished by excellent dust storage capacity and extension of the useful life.

Abstract: The pleated filter bag, which can be used in a bag-house type dust collector, is elongated and has a longitudinal hollow center with an open end, and a pleated filter wall circumscribing the hollow center. The pleated filter wall has a felt such as PTFE fibers felted onto an apertured and pleatable scrim which can be made of metal, and having a permeability lower than a permeability of the scrim. A membrane of lower-permeability material, such as an E-PTFE membrane, covers the support felt on the outer side of the bag.

Abstract: A dust collection device for a sanding tool includes a bag having a sidewall with an inner surface and a coupler attached to the bag. The sidewall comprises at least one filter layer and an outer support layer. A sleeve having an outer surface, a sleeve sidewall, a first end, a second end, and at least one gap at either the first end or the second end is positioned within the bag. The sleeve's first end is positioned adjacent the coupler to direct incoming air towards the sleeve and the sleeve is positioned within the bag such that a bypass volume is present between the outer surface and the inner surface.

Abstract: A flat bag for vacuum cleaners includes, in the interior thereof, at least two diffusers made of strips of material and/or sheet materials with oblong-shaped flow openings. Such flat bags are distinguished by excellent dust storage capacity and extension of the useful life.

Abstract: A flat bag is for vacuum cleaners. The bad includes, in the interior thereof, at least one diffuser which forms an intermediate plane and is made of strips of material and/or sheet materials with oblong-shaped flow openings. Such flat bags are distinguished by excellent dust storage capacity and extension of the useful life.

Abstract: A bag filter having a support structure clothed in a filter bag. The cloth of the filter bag is a composite of at least one substrate layer and at least one nanoweb bonded thereto in a face-to-face relationship. The nanoweb is positioned at the surface of the filter bag first exposed to the hot particle laden gas stream and can have a basis weight of greater than about 0.1 gsm.

Abstract: The invention relates to a vacuum cleaner filter bag, comprising a bag wall which is made of filter material and has a through-passage through which the air to be cleaned can flow into the vacuum cleaner filter bag, in which the bag wall comprises an at least partially pleated non-woven fabric material and the bag wall comprises a first and a second filter material layer which are joined to one another by a peripheral weld seam, wherein the first and/or second filter material layers comprise the at least partially pleated non-woven fabric material.

Abstract: A dust collection device for a sanding tool includes a paper bag having a sidewall with an inner surface and a coupler attached to the bag. A sleeve having an outer surface, a sleeve sidewall, a first end, a second end, and at least one gap at either the first end or the second end is positioned within the bag. The sleeve's first end is positioned adjacent the coupler to direct incoming air towards the sleeve and the sleeve is positioned within the bag such that a bypass volume is present between the outer surface and the inner surface.

Abstract: A bag filter having a support structure clothed in a filter bag. The cloth of the filter bag is a composite of at least one substrate layer and at least one nanoweb bonded thereto in a face-to-face relationship. The nanoweb is positioned at the surface of the filter bag first exposed to the hot particle laden gas stream and can have a basis weight of greater than about 2 gsm.

Abstract: Structures containing a fiber mat inserted into a high modulus scrim of minimum basis weight 35 gsm. The structures have reduced tensile elongation at 50 N per 5 cm fabric strip in MD under ISO 9073-3 standard norm. The structure has a basis weight of at least 9 ounces per square yard (305 grams per square meter). The structure also has heat resistance of at least 150° to 190° C., preferably over 200 up to 260° C. to for service under typical hot flue gas filtration conditions. Filter bags made from these structures provide a controlled dimensional stability over their entire filter life time. In addition such stable structures are suitable for lamination with fragile membranes especially e-PTFE membranes where minimum amount of mechanical damage to the membrane occurs.

Abstract: A filter bag includes a first filter material layer including an inflow opening, a second filter material layer having edges along which the second filter layer is joined to the first filter material layer to form an inside space; and a flat, multi-layer filter insert arranged in the inside space and having sections connected, respectively, to the first and second material layers. The filter insert has at least two outer layers defining an intermediate area there between. The intermediate area includes a center layer or an intermediate space for dust collection.

Abstract: 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.

Abstract: 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 circumferentially along the circumference thereof.

Abstract: 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 that is positioned near the floor, separate from the handle on the vacuum cleaner. An elongated, light-weight tube is disposed within the bag, and has a lower end that is connected to the collar. The tube is made of a thin, lightweight, lay-flat tubing with opposed creases, and is flexible and collapsible. It has a length that is greater than half the height of the sides of the bag. The collar has a seal that is trapped between two pieces of mounting material and extends around the periphery of the duct, providing an elastic seal. The bag has a top that is reinforced with a cardboard support. Extending flanges on the support can be used to suspend the bag from arms in the vacuum cleaner.

Abstract: 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 and a predetermined area, has an average pore size smaller than 50 ?m and comprises fibers being bonded together such that a movement of the fibers relative to each other in a direction parallel to the surface of the layer is inhibited. The invention is further directed to a filter medium, in particular, for a vacuum cleaner bag, comprising a filter structure wherein a surface or an interface of the filter structure is provided with a filter paper layer having a smaller surface area than the filter structure.

Abstract: 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 support layer. The first filter layer comprising a plurality of fibrillated electrostatically charged electret fibers forming a nonwoven web; the first filter layer having a total pressure drop between about 0.1 to about 4.0 mm H2O, and the first filter layer having a total basis weight between about 50 to about 450 gram/m2. The second filter layer comprising a melt blown microfiber nonwoven web; the second filter layer having a total pressure drop between about between about 5.5 to about 20.0 mm H2O, and the second filter layer having a total basis weight between about 15 to about 75 grams/m2.

Abstract: 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 bulk resulting due to the small number of welds per surface area.

Abstract: 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 biopolymer and having an antibacterial effect and/or a powder produced from a biopolymer and having an antibacterial effect.

Abstract: 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 region is folded and forms a base.

Abstract: The pleated filter bag, which can be used in a bag-house type dust collector, is elongated and has a longitudinal hollow center with an open end, and a pleated filter wall circumscribing the hollow center. The pleated filter wall has a felt such as PTFE fibers felted onto an apertured and pleatable scrim which can be made of metal, and having a permeability lower than a permeability of the scrim. A membrane of lower-permeability material, such as an E-PTFE membrane, covers the support felt on the outer side of the bag.

Abstract: 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 is made from a bag material having at least one non-woven layer, and the at least partially closed area is folded forming a bottomPlies of the bag material which lie the one above the other are formed in areas, and is at least partially closed by a weld seam extending centrally in the bottom, the plies of the bag material which lie the one above the other being at least partially connected to one another.

Abstract: 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 filtration layer comprising a high-efficiency filtration media selected from wet-laid filter paper, dry-laid filter paper, and nonwoven filter media; wherein said first filtration layer is disposed in series with said second filtration layer, with respect to an air flow direction through said vacuum cleaner, to form a composite.

Abstract: 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 installation area of the dust collector, and uniformly distributing an air pressure to thereby increase a dust removal effect as well as to enable a worker to easily manufacture the dust collector regardless of a quality of a material to thus provide a wide application range.

Abstract: 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 upstream side wherein the filaments continuously and gradually decrease in thickness toward the downstream side. The pores or spaces between the filaments are largest near the upstream side and decrease gradually toward the downstream side. This allows various size particles to become entrained in the filter in an evenly distributed manner.

Abstract: A filter medium has a woven fabric (1) made from mineral yarns that is in turn covered with polymeric staple fibres (2) by needling. Optionally, a diaphragm (3) made from porous polytetrafluoroethylene is applied at least on one side of the filter medium, in particular on its inflow side.

Abstract: The invention relates to a vacuum cleaner filter bag having a filter medium comprising a first layer consisting of a netting, a perforated sheet or a perforated non-woven with an air permeability of at least 10,000 l/(m2 s), and a first fibre layer consisting of man-made fibres and/or vegetable fibres and connected to one side of the first layer.

Abstract: The invention relates to a vacuum cleaner filter bag having a composite material comprising a first layer consisting of a netting or a perforated sheet with an air permeability of at least 10,000 l/(m2 s), and a first fibre layer consisting of man-made fibres and/or vegetable fibres and connected to one side of the first layer.

Abstract: 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 transparent wall and an inner filter cone coincides within a transparent support container which keeping the shape and position of the dust bag while separating dust from air. The transparent support container and the outer transparent wall of the dust bag allow to watch inside the filling level of the dust bag and to replace properly.

Abstract: 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 under a given air flow.

Abstract: 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 beads induces an electrostatic field within the filter media, thereby increasing the efficiency of the filter.

Abstract: 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 some cases where the yarns are glass). A second bath containing primarily a second fluoropolymer is then applied to the textile and the first composition to seal the first composition on the textile. The textile, so treated dissipates the static electricity normally generated in the filter media thus reducing excessive buildup of contaminating particles and enhancing cleaning of the bag during use.

Abstract: 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 circumferentially along the circumference thereof.

Abstract: A filter bag includes a first filter material layer including an inflow opening, a second filter material layer having edges along which the second filter layer is joined to the first filter material layer to form an inside space; and a flat, multi-layer filter insert arranged in the inside space and having sections connected, respectively, to the first and second material layers. The filter insert has at least two outer layers defining an intermediate area there between. The intermediate area includes a center layer or an intermediate space for dust collection.

Abstract: A filter bag for a vacuum cleaner made of a composite material comprising at least three layers, at least two layers which comprise a nonwoven fabric layer and at least one nonwoven fibre layer being connected by a weld.

Abstract: The invention relates to a vacuum cleaner filter bag made of a filter material, comprising at least three layers with at least two layers of a non-woven or non-woven fabric layer, and at least one layer of a fibre web layer of fibres and/or filaments, wherein the at least two non-woven layers and the at least one fibre web layer are connected to each other by a thermal bonding connection.

Abstract: 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 having an upstream side and a downstream side relative to the direction of fluid flow, a first depth filtration media layer having an upstream side and a downstream side relative to the direction of fluid flow, the first depth filtration media layer being disposed on upstream side of the membrane filtration layer; and at least one additional depth filtration media layer removably attached to the upstream side of the first depth filtration media layer. In this aspect, the first depth filtration media layer may be removably attached to the membrane filtration layer.

Abstract: A filter bag for a vacuum cleaner includes at least three layers, at least two layers which comprise at least one nonwoven fabric layer and one nonwoven fibre layer being connected by a weld, a high bulk resulting due to the small number of welds per surface area.

Abstract: The invention relates to a filter bag for filtering fine particles from a gas, having a filter coating at least of a certain coating thickness, and at least one filter layer of a certain layer thickness that disposed downstream of the filter coating in the direction of the gas flow. The invention is based on the task of providing a filter bag having a low tendency to clog, thus improving the service life of the dust filter bag, particularly upon the filtering of fine dusts. The task is solved in that the coating thickness of the filter coating (1) is essentially larger than the coating thickness of the filter layer (3, 4) disposed downstream.

Abstract: 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 protruding members 10 annularly secured to the unfolded end of the filter body. The ring element (7) is arranged at least partially at an interior part of the filter body (6). Also a filter device including a housing with a dust chamber (4) and a clean-air chamber (5) that are separated by an partition wall (3) suspending at least one filter bag (1) as described above that extends through an opening (2) provided in the partition wall (3) with a main part of the filter body (6) located in the dust chamber (4). The ring element (7) of the filter bag (1) extends at least partially into the opening (2) in the partition wall (3).