Abstract: A discharge accessory for a lawnmower includes an inlet end and a hook disposed at the inlet end. The hook defines a channel. A lever arm extends from the hook in a direction transverse to the channel, and a protrusion is disposed in the channel. The protrusion extends in a first direction transverse to the channel and to the lever arm, and the protrusion extends in a second direction transverse to the channel.

Abstract: Provided herein are filter assemblies that more effectively harness the energy of a cleaning pulse. Specifically, the filter assembly may have a direction-dependent flow resistance by including a flow control component positioned downstream of the filter component and the support structure which prevents the fluid stream from a cleaning pulse from dissipating through the filter component as it cleans but allows sufficient fluid stream flowing in the forward direction through the filter component during normal operation.

Abstract: A filter element includes a construction of pleated filter media defining an interior volume. First and second opposite end caps are secured to opposite ends of the filter media. A support structure supports the filter media and is operably oriented in the interior volume. The support structure extends from the first opposing interior face to the second opposing interior face. The support structure is provided to extend less than a full extension between the first end cap and second end cap.

Abstract: A filter cartridge for cleaning an air flow includes a base, a cover provided with a central recess, and at least one pleated filter element arranged between the cover and the base. The at least one filter element encloses an interior space. The cover has a venturi nozzle, and the venturi nozzle engages in the pleated filter element. The venturi nozzle is spread out in comb-like fashion in the region of its end engaging in the filter element.

Abstract: A filter element includes: a frame having a peripheral elastomer body in which a reinforcement element is embedded; and a filter pocket. The frame is connected to an opening in the filter pocket with a connection established integrally by the elastomer body. In an embodiment, the elastomer body is molded on the filter pocket.

Abstract: An air filter and dust collector are provided. In one example, an air filter is provided that includes a filter element coupled to a rectangular filter flange assembly. The rectangular filter flange assembly has a central aperture open to an interior region bounded by the filter element. The rectangular filter flange assembly includes a pair of short edges and a pair of long edges. A gasket is disposed on a top surface of the rectangular filter flange assembly circumscribing the central aperture. A first portion of the gasket is outward of the filter element in a direction toward the one of the short edges, and a second portion of the gasket is over the filter element in direction toward one of the long edges.

Abstract: The current technology relates to a filter element having pleated filter media. The pleated filter media defines an elongate tubular structure having an inner passageway. The pleated filter media has outer pleat folds and inner pleat folds each extending from a first end to a second end of the elongate tubular structure. The filter element has no more than one elongate brace disposed in the inner passageway, extending between the first end and the second end. A plurality of support ribs are coupled to the elongate brace, where each support rib has a connector defining an interference-fit with the elongate brace. Each support rib partially defines the inner passageway and has an outer support surface that abuts a substantial portion of the inner pleat folds.

Abstract: A filter insert for installation in a housing, having at least one substantially hollow cylindrical filter element for separating liquid from aerosol; and at least one covering element designed to cover an axial end region of the filter element; wherein at least one of the the at least one covering element is formed from at least one metal sheet and connected with the filter element with at least one mechanical connection; wherein the mechanical connection between the at least one covering element and the filter element is formed solely by a structure of the at least one covering element produced through deforming or reforming the at least one covering element; wherein the structure of the at least one covering element is configured to clamp the filter element to the at least one covering element.

Abstract: Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty air stream into the dirty air chamber along a dirty air flow axis.

Abstract: Vacuum cleaner filters, in particular replaceable vacuum cleaner filters suitable for both wet and wet/dry type vacuum cleaners are disclosed, as well as vacuum cleaner systems incorporating the use of such filters, and methods for their use. The filters include a filter element arranged in a closed circumferential, cylindrically-shaped path, a top end cap having a central orifice capable of constricting a post on a vacuum filter cage, and optionally a molded end ring oppositely-spaced from the top end cap for engagement with the lower motor housing of a vacuum cleaner.

Abstract: Systems and methods are provided for a filter system with an internal support structure. An embodiment of the filter system includes a header frame, a support structure having at least one arm, and a filter unit having at least one pocket. The support structure extends between the header frame and the filter unit. In addition, the support structure is coupled to the filter unit by inserting the at least one arm of the support structure into the at least one pocket of the filter unit.

Abstract: A dust-collecting apparatus is described that includes a lift-off door assembly that provides access to the interior of the dust-collecting apparatus while minimizing the adverse effects on the normal operation of the apparatus by maintaining a proper seal between the interior and the exterior of the apparatus. In particular, the lift-off door assembly includes a top plate, a door frame, and a bottom plate. The top plate is secured to the door frame. Lift clips are provided about a perimeter of the bottom plate and are secured to the bottom plate. Lifting ends of the lift clips are positioned over an outer portion of the door frame, such that when a lifting force is applied to the top plate, the top plate, door frame, and bottom plate are lifted together via the lift clips to move the lift-off door assembly from the closed position to the open position.

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 support cage for a baghouse filter comprises a first filter cage segment comprising elongated body portion having a top end and a bottom end, a second filter cage segment comprising a second elongated body portion having a top end and a bottom end, and a coupling member positioned between and connecting the bottom end of the first filter cage segment and the top end of the second filter cage segment.

Abstract: A filter kit with an enhanced surface area filter and cage, for an electric power vacuum cleaner, the filter is a self-cleaning, flexible interlocking fabric having a rest position at atmospheric pressure, and a stretched position when under vacuum of a vacuum cleaner, the fabric having at least enough stretchability to increase its surface area by at least 10% in its stretched position from its rest position. When the vacuum cleaner is operating, the filter is in its stretched position and collects dust and debris, and when the vacuum cleaner is off, the filter relaxes, returns to its rest position and its surface area contracts to be self-cleaning, and a portion of the dust and debris to fall from the filter.

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: The present device is a detachable core for use with a cylindrical filter cartridge. The core includes a wire frame including at least two vertical struts oriented along a longitudinal direction. The wire frame includes an upper ring and a lower ring mounted to the distal ends of the vertical struts and further includes an upper flange and a lower flange mounted to the upper and lower rings respectively, wherein the lower flange is detachably mounted to the lower ring. Preferably the lower ring includes a gap in the lower ring to enable resilient compression of the ring by squeezing the lower ring in a radial inward direction prior to engagement with the lower flange. Preferably the cartridge filter includes elastomeric end caps and the cooperating rings and flanges are non-circular such that the elastomeric end caps conforms to the non-circular shape of the upper and lower flanges.

Abstract: A dust screen for an inspection hatch disposed in the roof or a side wall of a dry bulk storage unit for use during pneumatic loading of aggregate material from a pneumatic trailer via air pressure ducted into the bulk storage unit. The dust screen includes an elastic cord in a hem surrounding an open end of the screen to secure the dust screen to the inspection hatch. An alternative embodiment may include a binding strap having a ratchet buckle to supplement the elastic cord. As the dust screen extends upward in the presence of said air pressure, the dust is allowed to settle into the storage unit. No separate container to contain the dust is required, and no separate structure is required to support the dust screen during operation. The dust screen is light weight, portable and reusable, and low in cost.

Abstract: A floor cleaner including a nozzle and a handle assembly pivotably mounted to the nozzle. The handle assembly including a handle, a motor housing supporting a suction source in fluid communication with the nozzle, and a bag housing defining a filter cavity. A door is removably coupled to the handle assembly and includes a retainer configured to secure a filter bag including a bag aperture to the door such that the door and the retainer are removable from the handle assembly as an assembly. The retainer includes a retainer handle positioned above the bag aperture.

Abstract: An elongated wire cage for insertion in to a known type of fabric filter (not shown) includes a pair of cage sections secured together by a pair of couplers attached to respective adjacent ends of the cage sections and having compatible flanges for securing the cage sections together thus forming the elongated cage.

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 fabric filter bag (50) and cage (10) system for use in a bag house (66) for industrial process gas stream particulate removal. The bag house (66) includes an inlet (68) for process gas flow into an interior space (65) thereof, at least one fabric filter bag (50) and cage (10) system within the interior space (65) for filtering the process gas as it flows therethrough, and an outlet (70) for flow of cleaned process gas out of the interior space (65) of the system. The subject fabric filter bag (50) and cage (10) system provides about an additional 14% filter material per bag as compared to like sized round filter bags, thereby effectively reducing the size of bag house (66) required to achieve a particular air to cloth (A/C) ratio. Reducing the size of the bag house (66) required to achieve a particular A/C ratio significantly reduces capital costs typically associated therewith.

Abstract: A filter for use within a baghouse for filtering particulate material from fluid flow. The filter is to be supported by a tubesheet of the baghouse. The filter includes an elongate bag that has an open end adapted to be disposed adjacent to the tubesheet and an encircling sidewall that extends from the open end to a distal end of the bag. The sidewall permits passage of fluid there through so that the fluid may pass through the bag and blocks passage of particulate material. The filter includes an elongate cage that is located within and supporting the bag and that has a variable effective length. The filter includes cage-associated structure for increasing the effective length of the cage to maintain the sidewall to be taut adjacent the cage. The cage may include structure inhibiting movement of the cage. The filter may be part of a baghouse assembly.

Abstract: An elongated wire cage 3 for insertion in to a known type of fabric filter (not shown) includes a pair of cage sections 6 and 8 secured together by a pair of couplers 6 and 8 attached to respective adjacent ends of the cage sections and having compatible flanges 10, 12, 14 and 16 for securing the cage sections together thus forming the elongated cage 3.

Abstract: Certain embodiments of the invention may include systems, methods, and apparatus for mounting filters. According to an example embodiment of the invention, a method is provided for mounting one or more filters in a housing with a tubesheet, an intermediate support, and a directional mount. The method can include providing a filter with a first filter section, manipulating the first filter section with respect to the intermediate support, and manipulating the first filter second end with respect to the intermediate support, where the first filter second end maintains its relative position with respect to the intermediate support, and the intermediate support is operable to engage with a second end of the directional mount.

Abstract: The invention relates to a filtering device, comprising a tubular filter element and a carrier part, with the filter element fastened thereon. The carrier part can be inserted between an unfiltered fluid pipe and a filtered fluid pipe. The pipes can be assembled into a continuous flow pipe, wherein the filter element protrudes into the pipe interior.

Abstract: A particulate filtration reverse pulse cleaning system is disclosed. The system comprising a housing, a tubesheet disposed within the housing, a filter for fluid communication with a tubesheet aperture, a support frame connectable with the tubesheet, and a cleaning system associated with the support frame. A filter cleaning system is also disclosed, the support frame comprising a plurality of hollow support legs comprising at least one cleaning aperture and a cleaning system associated with the plurality of hollow support legs. A method for cleaning a filter is also disclosed.

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: A filter bag support structure, including a first section and a second section. The first section includes a pair of opposed alignment members located partially internal to the first section and extending outwardly away from the first section aligned to insert into the second section. The second section includes at least one annular member. The alignment members are receivable within the second section and have engagement members near a distal end. A locking member is removeably insertable between the opposed alignment members and inhibits the alignment members from flexing inwardly when the locking member is inserted and causes the alignment members to resist being removed from the at least one annular member when a tension load is applied that would tend to separate the first section from the second section to a greater degree than when the locking member is not present.

Abstract: A filter bag is longitudinally formed in a frusto-conical shape The filter bag has a plurality of radially extending members that form a propeller shaped cross-section, and a propeller-shaped molded bottom that enhances dust fall from the exterior. A frusto-conically-shaped inner cage facilitates the shape of the filter bag of the filter element.

Abstract: The present disclosure provides a method, apparatus, and system to mount a filter bag to a wet/dry vacuum cleaner by providing an adapter for mounting the filter bag to a drain opening in the wet/dry vacuum cleaner drum and restricting the typical vacuum port, forcing the vacuum materials to enter through the drain opening and into the bag. The lid of the wet/dry vacuum cleaner can be removed independently of the bag to avoid rupturing the bag. Further, the bag can rest on the bottom of the drum for support.

Abstract: The invention relates to a filter device (1) and a filter element (8) for cleaning an air stream that is charged with particles. The filter element (8) comprises a bag-type filter sock (17) consisting of an air-permeable, flexible material and a support body (21) in the interior of the bag-type filter sock (17). The first axial end of the bag-type filter sock (17) is closed and the second axial end has an air outlet that allows the cleaned air stream to exit the filter sock (17).

Abstract: A filter pipeline for an air intake system of an internal combustion engine has a tubular body and a filter element arranged in the tubular body. The filter element is a filter bag of a flexible material that has an opening and is attachable in the area of the opening to the tubular body. The filter bag and an inner wall of the tubular body are shaped such that in a circumferential direction of the pipeline different spacings are provided between the filter bag and the inner wall of the tubular body.

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 baghouse and filter assembly are provided for at least partially removing particulate matter from a gas stream. The filter assembly includes first and second filter portions to be coupled together by a coupler for establishing fluid communication between the first and second filter portions when connected. The coupler includes a first coupling portion including a side wall defining an interior passage through which the gas stream can pass in an axial direction between the first and second filter portions, and one or more flanges projecting from said side wall, the one or more flanges supporting a plurality of male studs. The coupler further includes a second coupling portion including a plurality of female keyhole-shaped receivers spaced apart for receiving at least a portion of the male studs and coupling the first coupling portion to the second coupling portion.

Abstract: A fabric filter bag (50) and cage (10) system for use in a bag house (66) for industrial process gas stream particulate removal. The bag house (66) includes an inlet (68) for process gas flow into an interior space (65) thereof, at least one fabric filter bag (50) and cage (10) system within the interior space (65) for filtering the process gas as it flows therethrough, and an outlet (70) for flow of cleaned process gas out of the interior space (65) of the system. The subject fabric filter bag (50) and cage (10) system provides about an additional 14% filter material per bag as compared to like sized round filter bags, thereby effectively reducing the size of bag house (66) required to achieve a particular air to cloth (A/C) ratio. Reducing the size of the bag house (66) required to achieve a particular A/C ratio significantly reduces capital costs typically associated therewith.

Abstract: A baghouse and filter assembly are provided for at least partially removing particulate matter from a gas stream. The filter assembly includes a first filter portion to be supported within the baghouse adjacent to an opening defined by a tube sheet, a first generally-tubular frame, and a first pleated filter media adjacent to the first generally-tubular frame. A second filter portion includes a second generally-tubular frame and a second pleated filter media disposed adjacent to the second generally-tubular frame. A coupler is provided for connecting the first filter portion to the second filter portion and establishing fluid communication between the first and second filter portions when connected. The coupling includes a first coupling portion including a side wall defining a receiver, as well as a lug clip disposed adjacent to the receiver. The lug clip us substantially-elastically displaced in a radial direction from an unbiased position during connection of the first and second filter portions.

Abstract: A peaky filter comprises a covering and a corresponding base, a supporting frame connected between the covering and the base, and a multifold filter covering the exterior of the supporting frame. The supporting frame includes plural transversely spaced first supports and plural connectors. Each support has a supporting rod and a plurality of longitudinally spaced supporting members connected to the supporting rod. Each supporting member has a first supporting leg and a second supporting leg extending radially and outwardly from the supporting rod. Each connector has a first connecting part and a second connecting part, which are used for respectively connecting one end of the first supporting leg of one support and one end of the second supporting leg of another adjacent support to connect elastically the plurality of transversely spaced supports, and consequently alter the size of the supporting frame and the filtering area of the filter.

Abstract: A vacuum cleaner includes a housing, a suction generator carried by the housing, a bag compartment and a bag cage. The bag compartment is defined by a bag compartment wall including an airflow inlet and an airflow outlet. The bag cage is received in the bag compartment. The bag cage defines a bag cavity that hold a filter bag in a position spaced from the bag compartment wall so as to maintain a clear airflow passage. The bag cage includes a bag caddy having a bag holder.

Abstract: It is an object of the present invention to provide a retainer cone that, by internally inserting the retainer cone into the central portion at the upper end portion of the retainer main body, which is an area, where negative pressure is generated, in the vicinity of the attaching portion of a prior art venturi tube, is capable of dispersing a part of the compressed air jetted from a nozzle at the upper part of the retainer main body, when carrying out reverse air filtration of a filtration fabric, in the radius direction of the retainer main body, preventing negative pressure from being generated at the upper end side of the retainer main body, outwardly inflating the entire filtration fabric including the upper end side of the retainer main body, securely shaking off powder dust adhered to the filtration fabric, and simultaneously enlarging the sectional area of a flow path at the upper end portion of the retainer main body in comparison with a prior art venturi type, and significantly reducing the load of

Abstract: The present invention discloses a bag type filter structure including a filter frame module and filter bags. The filter frame module has a frame edge at each side of the perimeter of the filter frame module, and connecting ribs between two opposite frame edges for partitioning the filter frame module into air inlets. The quantity of filter bags is equal to the quantity of air inlets. Each filter bag includes a bag body and a frame, and the bag body has a mouth, and the frame is a grid frame composed of connecting members and a side frame and connected to the mouth of the bag body for bracing the mouth, and the side frame of the frame is embedded into the air inlet of the filter frame module for mounting the filter bag onto the filter frame module through the frame.

Abstract: A filter element (10) is disclosed having a integral clamp (100) thereon. The adjustable clamp (100) is held against a sleeve (90) by attached tabs (91). The sleeve (90) covers a collar (70) with a plurality of fingers (72) thereon. A high head, e.g., the apex, formed by a bead (80) in the fingers (72) permits better sealing between the filter (10) and the filter's support housing.

Abstract: An air filter assembly for removing particulate matter from an incoming dirty air stream. The assembly includes a housing having an inlet, an outlet, a dirty air chamber and a clean air chamber and a non-cylindrical shaped elongated filter element arranged within the dirty air chamber constructed to remove particulate matter from an incoming air stream. A plurality of non-cylindrical filter elements are preferred. The non-cylindrical filter elements provide a decreased incoming air stream velocity when compared to conventional cylindrical filter elements having the same surface area. Alternately, the non-cylindrical filter elements allow an increase in the volume of incoming air when compared to conventional cylindrical filter elements having the same surface area.

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: A bag filter system including a filter media insert including a plurality of pockets. A tuck frame may be configured for mounting in a support frame of a filtration system. The tuck frame may be further configured to releasably engage at least a portion of the filter media insert. A wire frame may be disposed at least partially within the tuck frame. The wire frame may be configured to support the plurality of pockets of the filter media insert.

Abstract: An inlet air treatment system for a gas turbine includes, in an exemplary embodiment, an air plenum, and a moisture removal system, and an air filtration system located downstream from the moisture removal system. The moisture removal system includes a plurality of S-shaped vanes, and a mesh structure downstream from the plurality of S-shaped vanes. The air filtration system includes a plurality of filter elements, with each filter element including a support structure. The inlet air filtration system also includes a plurality of electrodes positioned proximate the plurality of filter elements, where the electrodes are coupled to a power source which supplies a voltage to the electrodes. The voltage is sufficient to establish an electrostatic field between the electrodes and the filter elements, and at the same time, the voltage is sufficient to produce a corona discharge from the electrodes.

Abstract: An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second width, the second width being less than the first width. The coupling assembly includes an element carried by the second section, and presents an engagement width that is greater than the second width and less than or equal to the first width such that the element may be shiftably received within the first section at the first width, and can be removably engaged at the second width.

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).

Abstract: The invention relates to a method for cleaning filters for dust-laden waste gases, including several filter elements (2) which are arranged vertically in a filter housing (1) and which have an upper open end (16) and a lower closed end (15) with at least one feed line (9) for the dust-laden waste gases and at least one discharge line (11) for the cleaned waste gases, in addition to a device for injecting surges of compressed air into the open end (16) of the filter elements (2). In order to reduce pressure fluctuations in the filter and to provide efficient cleaning with pulsations of compressed air in the low pressure range i.e. from approximately 0.8 to 3 bars, the filter is divided into several filter modules (1) respectively including at least one filter element (2). At least two filter modules (1) are arranged in a filter housing (10) or a filter chamber.