Abstract: A primary filter cage wall element is adapted to form, together with at least one complementary filter cage wall element, a tubular baghouse filter cage segment. The filter cage wall elements are provided with snap-locks, for snapping a first long side of the primary filter cage wall element to a second long side of the complementary filter cage wall element, and for snapping a second long side of the primary filter cage wall element to a first long side of the complementary filter cage wall element.

Abstract: A filter unit comprising a filter bag for removing particles from an air or gas flow, wherein the filter unit is arranged to receive at least one filter pocket and the filter bag comprises an opening portion and an end portion opposite said opening portion. The filter unit further comprises a frame arranged at a periphery of the opening portion, and a support structure arranged at the periphery of the end portion for stretching an area of the end portion. The frame and the support structure act to stretch the filter bag into a substantially parallelepiped shape such that the filter unit is arranged to provide a free passage for the at least one 140 filter pocket into and out of said filter bag. Furthermore, the filter unit is arranged to fold between the frame and the support structure into a folded state.

Abstract: A filter for use in a baghouse. The filter is to be supported by a tubesheet that separates dirty fluid and clean fluid chambers of the baghouse. The filter including a filtration bag that has an open end adjacent to the tubesheet and an encircling sidewall that extends from the open end to a distal end along a direction of a central axis of the filtration bag. The bag sidewall permits passage of fluid there through so that the fluid may pass from the dirty fluid chamber to the clean fluid chamber and blocks passage of at least some particulate material against proceeding to the clean fluid chamber. The filter includes a cage located within the filtration bag. The cage has structure to permit expansion of the cage to increase a cage diameter that forces the bag sidewall taut against the cage.

Abstract: A vacuum cleaner filter bag includes (a) a bag wall made of filter material, an inlet opening being provided in the bag wall, (b) a deflecting strip for deflecting an air flow entering through the inlet opening, the deflecting strip being disposed in the interior of the vacuum cleaner filter bag, (c) a material strip which is disposed in the interior of the vacuum cleaner filter bag and connected to the bag wall, at least a part of the edge of the material strip not being connected to the bag wall, and (d) a spacing means which is configured such that the material strip is at a spacing at least partially from the bag wall during operation of the vacuum cleaner filter bag.

Abstract: A method for making a pocket filter assembly is provided. Two side and two end header elements each having a pair of longitudinally extending side walls and a longitudinally extending bottom wall forming a longitudinally extending channel are joined at ends forming a rectangular header with two opposing sides and two opposing ends. The bottom wall and side walls of each of the opposing sides and the bottom walls and said side walls of each of said opposing ends become adjacent forming a rectangular header with a continuous bottom wall and continuous inner and outer side wall having a continuous channel therein. An upstream perimeter portion of a pocket filter element is inserted in the continuous channel and a liquid polymeric material is placed therein. The polymeric material is solidified forming a header frame having the upstream perimeter portion of the filter element unitary therewith.

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: 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: A bag filter assembly is described; wherein the bag filter assembly includes a filter header, filter media, and a plurality of cover strips and one more living hinges. The header, the cover strips and the living hinges are injection molded as a single part from a plastic material. An adhesive is applied to the header. The pocket rings are also plastic injection molded as a single part with the header, the covers strips and the living hinge.

Abstract: A cyclone dust-separating apparatus includes a cyclone unit having air inflow and air outflow parts that separate dust or dirt from air, the cyclone unit being installed such that a longitudinal axis thereof is substantially horizontally arranged; a dust bin joined to a bottom end of the cyclone unit that collects the dust or dirt separated by the cyclone unit, the dust bin installed in such a manner that a longitudinal axis thereof is substantially perpendicular to the longitudinal axis of the cyclone unit; a nonporous envelope detachably disposed in the dust bin that stores the dust or dirt collected into the dust bin; and a pressure difference-generating passage to communicate an outlet of the air outflow part and the dust bin with each other so as to allow the nonporous envelope to come in contact with an inner surface of the dust bin by a pressure difference between the dust bin and the air outflow part.

Abstract: An improved filtration apparatus, filtering method and filtering material for capturing mercury and other pollutants in pollutant-laden fluid streams such as flue gases generated by process gas streams are disclosed. The improved filtration system may include two pollutant remediation layers, an upstream layer capable of filtering particulates and a downstream layer capable of adsorbing and/or catalyzing pollutants such as mercury, dioxin, furans, and NOx. The improved filtration system may be in the form of a particulate filter bag. The particulate filter bag may be configured for use in a reverse air filtration system with the upstream layer facing an internal volume of the bag. The upstream layer may include an ePTFE layer laminated to the upstream side of the upstream layer.

Abstract: The support structure is used in a filter bag for filtering gas and has a plurality of tubular pipe elements extending in the longitudinal direction of the filter bag. The tubular pipe elements are connected to annular elements located at a distance from each other in the longitudinal direction. The annular elements include elements formed by a number of parts, each part having two ends and extending between adjacent longitudinally extending tubular pipe elements.

Abstract: The invention relates to a dust collection device for a hand-held power tool having a sanding or cutting tool and a dust extraction connection (12), especially for an electric sander. Said dust collection device comprises a dust collection bag (14) having an air-permeable filter bag (15) and a stiffening plate (16) mounted upstream of the filter bag (15), said stiffening plate having an inlet opening (17) to be slid onto the dust outlet connection (12). To facilitate the handling during attachment and detachment of the dust collection bag (14) and to improve the mechanical protection of the dust collection bag (14), the dust collection device comprises a support (13) which can be attached to the hand-held power tool. Inside said support, a filter chamber (20) for placement of the filter bag (15) and a receiving chamber (21), mounted upstream of the filter chamber (20), for insertion of the stiffening plate (16) are configured.

Abstract: A particle collection apparatus is disclosed. The apparatus includes a baghouse housing comprising an entrance port, a collection port, a baghouse configured between the entrance port and the collection port, and a vacuum port coupled to the baghouse. The apparatus also includes a collection mechanism coupled to the collection port; and, a compression mechanism coupled to the baghouse.

Abstract: A vacuum cleaner, in which a dust bag or a cyclone dust collecting apparatus can be selectively mounted, includes a body case having a dust collecting chamber and a connecting hole formed at a side surface of the dust collecting chamber so that outside air enters through the connecting hole, a pair of securing brackets formed on an inner surface of the dust collecting chamber of the body case at both sides of the connecting hole in parallel with each other so that the cyclone dust collecting apparatus or the dust bag is selectively secured to the pair of securing brackets, and a body cover disposed at the body case and being opened and closed in order to open and close the dust collecting chamber.

Abstract: A filter element comprising a first planar layer (1) and a second planar layer (2), the layers (1, 2) being joined to one another to form at least one volume and at least one opening (3), and the layers (1, 2) being spaced apart from one another in places by means (4). With regard to the object of providing a filter assembly which is easily manufactured and ensures proper operation, the invention is characterized in that the means (4) are formed from at least one layer (1, 2). An assembly comprising a filter element and a frame is also described. Also described is a layer (1, 2) having deep-drawn areas.

Abstract: An improved filtering bag combination having an increased area of filtering and a longer life of use. The improved structure includes a filtering member with multiple folds to cover a support formed of a plurality of rods. The rods of the support have a plurality of bracing members to support the filtering member, two ends of the support are mounted with two shaping pieces, and an upper and lower lid for fixing and sealing. The bracing members are all serrated members, and are provided on the outside with numerous equidistantly separated crests and corresponding hollows and on the inner side with a connecting base. The crests each have a clamping notch for placing a rod, so that the bracing members can be transversely arranged within a circle formed by encircling the rods of the support.

Abstract: An air filter support system for a clean room is comprised of a number of filter support elements (10) supported by holding rods (12) secured to a supporting surface. A connector/hanger bracket (14) having a pair of perpendicular arms (20, 22) with apertures (24, 26, 28) formed therein is secured to each holding rod. Supporting elements (16, 18) are laterally secured to the perpendicular arms by securing elements (38, 62, 64) passing through openings (40, 66, 68). Each of the supporting elements include sealing gaskets (34, 36, 70, 72) on top surfaces thereof to seal between supporting elements and filter elements. Aerodynamically-shaped light fixtures (42, 52) are secured to lower portions of the supporting elements (16) to provide non-turbulent air flow into the clean room, while supporting elements (18) are aerodynamically-shaped to provide non-turbulent air flow into the clean room.

Abstract: For an inside to outside dust collector, a self tensioning bag retainer for connecting the upper end of a fabric sleeve filter to an overhead support. For preinstallation of the filter assembly, a compressed tensioning spring is retained from movement by a pin member to facilitate ease of installation. With the pin member removed, however, the spring acts upwardly against a retainer cap to appropriately tension the sleeve filter and to permit controlled flexure during cycling from a filtering to a cleaning operation.

Abstract: A bag filter housing (10) having filter bag tensioning means for providing a predetermined tension on each filter bag (28). The tension may be quickly released by means of a lever (40) incorporated into the bag tensioning means thereby allowing the filter bags to be quickly removed and replaced as necessary to maintain optimum dust collection performance.

Abstract: Method and apparatus for maintaining the permeability of porous filtering media used in filtering gaseous suspensions. More particularly the invention defines Inside Bag Dust Collection wherein high energy pressurized gas is introduced for cleaning the filtering media. In the method and apparatus pneumatic impulse forces, derived from a series of charges of pressurized gas are directed downwardly through ever open venturi means and away from the interior of the filter bags; specific jet nozzle elements optimize the efficiency of the pressurized gas application, and an induced air funnel means within the bag causes vertical force resolution for induced air cleaning flow. Spoiler means are provided within jet nozzle means such that particulate matter will neither enter nor accumulate in the jet nozzle opening during normal, onstream gas flow conditions. There is also an accommodation to the conventional dirty gas chamber to efficiently receive high velocity, high volume induced air cleaning flow.