Abstract: A barrier assembly used in the protection of personnel at worksites and/or residential areas from escapes of gas. Such a barrier assembly controls the lateral and vertical spread of gas in the event of an escape of the gas, even more particularly toxic gas. The barrier assembly can be used at operating sites where gases are produced, and in particular where high concentrations of toxic gases (e.g. CO2, H2S, SO2, mercaptans etc.) are present. The barrier assembly can, optionally act as a safety system in the event of an accidental uncontrolled release of these toxic gases into the atmosphere.

Abstract: A station for a cleaning device is provided. The station includes an accommodation chamber configured to be docked with the dust canister, a housing configured to have a dust bag disposed therein, a cover configured to open and close one region of the housing, a holder configured to be detachable to the dust bag and selectively communicate the dust bag with the accommodation chamber, and a lever configured to have one end disposed in one region of the housing and rotate in a first direction to selectively interfere with the cover. The lever rotates in a second direction opposite to the first direction to close the cover based on the dust bag being mounted on the holder and in communication with the accommodation chamber.

Abstract: An indoor air quality control method using an intelligent air cleaner is disclosed. An indoor air quality control method using an intelligent air cleaner according to an embodiment of the present invention classifies dust concentration data received from the air cleaner according to predetermined criteria and performs dust concentration pattern analysis. Particularly, dust concentration patterns for respective time periods are analyzed to control the air cleaning intensity of the air cleaner in advance of a predicted time, thereby facilitating efficient indoor air quality management. The intelligent air cleaner and the indoor air quality control method using the same of the present invention can be associated with artificial intelligence modules, devices related with the 5G service, and the like.

Abstract: A fluid filtration system is shown. The fluid filtration system utilizes a one-piece or multiple piece containers having a plurality of radiation-transmissible media adapted to receive light, such as ultraviolet light, white light or other wavelength light. The radiation-transmissible media are situated in the container and at least one or a plurality of radiation sources, such as ultraviolet lamps, are situated in an array in proximity to the radiation-transmissible media. The radiation-transmissible media interrupts the flow and velocity of the fluid stream passing through the container to extend the duration of radiation for any contaminants and also provide enlarged surface areas for the contaminants to be received and ultimately exposed to the radiation. In one example, the radiation-transmissible media may be tubular or spherical sections that are hollow or solid and made of quartz.

Abstract: A station for a cleaning device is provided. The station includes an accommodation chamber configured to be docked with the dust canister, a housing configured to have a dust bag disposed therein, a cover configured to open and close one region of the housing, a holder configured to be detachable to the dust bag and selectively communicate the dust bag with the accommodation chamber, and a lever configured to have one end disposed in one region of the housing and rotate in a first direction to selectively interfere with the cover. The lever rotates in a second direction opposite to the first direction to close the cover based on the dust bag being mounted on the holder and in communication with the accommodation chamber.

Abstract: A skid for capturing refrigeration from liquefied natural gas vaporization is disclosed comprising a first heat exchanger mounted on the skid, the first heat exchanger having a natural gas inlet, a natural gas outlet, a process fluid inlet, and a process fluid outlet. The process fluid is configured to flow from the process fluid inlet through the first heat exchanger to the process fluid outlet and then to the process fluid inlet. Other embodiments of the system for capturing refrigeration from vaporization of liquid natural gas, and methods for its use, are described herein.

Abstract: A device for depositing overspray from the overspray-charged booth air of coating installations with a flow system for booth air. The flow system includes a number of depositing units through which overspray-charged booth air can be directed and in which overspray is deposited. The depositing units are designed as an exchangeable structural unit with a filter housing, a filter inlet, a filter unit and a filter outlet, each of which can be fed to the flow system and can thereby be moved into or out of an operating position. In the operating position of a depositing unit, the filter inlet is connected to an associated first flow connection of the flow system and the filter outlet is connected to an associated second flow connection of the flow system. There are docking means, by which the filter inlet and the filter outlet of one of the depositing units and the flow connections of the flow system are forcibly aligned in relation to one another during the feeding movement.

Abstract: In order to provide a filter system for separating off contaminants from a stream of untreated gas that contains contaminants that is of simple construction and is operable efficiently, it is proposed that the filter system should include the following: a base construction through which the stream of untreated gas is guidable and which includes at least one filter module receptacle for receiving at least one filter module, and at least one filter module which is selectively arrangeable on and/or in the at least one filter module receptacle and/or removable therefrom, wherein the at least one filter module includes a plurality of filter element receptacles for receiving a plurality of mutually independent filter elements.

Abstract: The present invention relates to an equipment front end module (EFEM) configured to perform wafer transfer between process equipment and a wafer storage device that stores wafers. More particularly, the present invention relates to an equipment front end module (EFEM), which enables gases supplied into the wafer transfer chamber to efficiently flow to maintain cleanness in the wafer transfer chamber at a high level, thus preventing contamination in the wafer transfer chamber.

Abstract: The treatment device (100) is capable of cooperating with an elongate element (1) provided with a plurality of electronic chips (2a, 2b, 2c, 2d) staggered along the length of the elongate element (1). This treatment device (100) has a housing (101) with an input orifice (102) and an output orifice (103) for the elongate element (1), and a treatment cavity (104) arranged between the input orifice (102) and the output orifice (103) and provided with a treatment probe (105) for electronic chip. Furthermore, the treatment device comprises an isolation system (106) configured to isolate an electronic chip to be treated present in the cavity (104) from other electronic chips of the plurality of electronic chips arranged outside of the cavity (104).

Abstract: A filter assembly having a filter module, a fan module, an electronics module including a control system. The fan module inlet and the filter module outlet are laterally spaced apart with their corresponding surfaces extending side by side. A cover is movable between an engaged position engaging the surfaces of the filter and fan modules and a removed position. The cover defines a plenum providing a fluid communication between the filter module outlet and the fan module inlet in the engaged position and directing the flow along a direction different from a direction of the flow through the fan module inlet and filter module outlet. A sensor is located in the plenum and configured to provide information on the flow through the plenum. The sensor communicates with a power source and with the control system at least when the cover is in the engaged position.

Abstract: A portable conveying apparatus for transferring particulate material comprises a conveyor supported on a trailer frame and operable to convey the material for subsequent discharge to a target location. A housing mounted to the trailer frame and substantially covering a top of the conveyor defines at least one inlet for delivery of material from a container to the conveyor. A flexible chute communicating each inlet and a container discharge to guide the material to the apparatus housing is carried on the trailer frame in a storage position so as to be transportable therewith. Within the housing, an upper guide surface converges to a central grate disposed at a transversely offset location from the respective inlet for central depositing of the material onto the conveyor. A suspension arrangement is operable to raise and lower the trailer frame between transport and operating positions so that a bottom of the trailer frame can rest on the ground to inhibit the dust emanating during use.

Abstract: The invention relates to an assembly for enclosing a target processing machine. The assembly comprises an enclosure and a transfer unit. The enclosure comprises a base plate for arranging said target processing machine thereon, side wall panels, which are fixed to said base plate, and a top wall panel which is fixed to said side wall panels. In addition, the enclosure comprises an access opening in a side wall of the enclosure. The transfer unit comprising one or more transfer elements for moving the transfer unit with respect to the base plate. The transfer unit further comprises a door panel which is arranged for closing the access opening, wherein the door panel is movably mounted to the transfer unit by means of a flexible coupling which allows a movement of the door panel with respect to the transfer unit at least in a direction towards and/or away from the enclosure.

Abstract: An apparatus and a system is provided that may be utilized to determine air flow through an air filter and/or a plurality of air filters. The present invention utilizes a demonstration apparatus to illustrate the differences in air flow and air restriction between a plurality of different air filters and filtration media. The apparatus and system utilizes a common plenum which subjects the plurality of air filters to the same differential pressure. The air flows through a first side of the air filter and is measured on the second side of the air filter by utilizing a wind meter or similar device to gauge the amount of air flow velocity of the second side of the filter. Additionally, the apparatus and system utilizes a display means to illustrate the differing air velocity through the second side of the air filter.

Abstract: A team roping dummy that encourages more correct roping. The dummy head can be rotated to different angles to match that of a typical running steer. A blocker post extends vertically out of the neck, which makes the roper deliver the loop at the proper plane. The blocker post further causes the roper to rope the horns in the center of the loop versus roping with the front or back edge of loop. The back legs extend at proper angle of heel loop swing, causing the roper to match the angle of the loop during its swing to the angle of the legs and provides a visual line to match the plane of the loop.

Abstract: A voloxidizer with a double reactor for spent fuel rods decladding of the present invention includes a reactor module into which spent fuel rods are loaded, the reactor module including a reactor having a dual structure; a heater module for heating the reactor module; and a drive module for providing a driving force to the reactor module. A double reactor utilized in a voloxidizer for spent fuel rods decladding includes an internal reactor into which spent fuel rods are loaded; and an external reactor formed on an outer circumferential surface of the internal reactor. Here, a first transport part and a second transport part are formed on inside surfaces of the internal reactor and the external reactor, respectively, and the spent fuel rods are moved by the first transport part and the second transport part and oxidized when the internal reactor and the external reactor are rotated.

Abstract: An oil mist collector contains a casing unit, a first filtering unit, a second filtering unit, and a ventilation unit. The casing unit includes an inlet, a first air chamber, a second air chamber, an air guiding orifice corresponding to the second air chamber and communicating with an exterior, and a first recycling orifice arranged on a bottom end thereof and communicating with the first air chamber. The first filtering unit is disposed in the first air chamber and corresponds to the inlet. The second filtering unit is fixed above the air guiding orifice and includes an open rear end, a first lip with a noncircular cross section, a second lip, and a first filtration assembly defined between the first lip and the second lip. The ventilation unit includes a motor and a rotary fan rotatably connected with the motor and secured in the second air chamber.

Abstract: An air filter bank may include a housing configured to be coupled to an exterior of an air vehicle. The housing may have an air intake at a forward end and an air exit at an aft end and defining an air path therebetween. The air filter bank may further include at least one air filter positioned within the housing along the air path. The air filter may be configured to remove pollutants entrained in a volume of air entering the air intake and impinging on the filter surfaces prior to exiting the air exit.

Abstract: A byproducts treating device includes a transfer unit, a cleaning unit, and a controller. The transfer unit forcibly transfers byproducts from a byproduct source. The cleaning unit is combined with the transfer unit and separates the byproducts into at least one of a power or a byproduct gas. The controller is connected to the cleaning unit and selects at least one selection line for discharging byproduct gas. The byproducts flow from the transfer unit to the cleaning unit without flow lines, and the controller selects the at least one selection line based on a flux of the byproduct gas.

Abstract: A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet. The surface cleaning apparatus comprises a main body comprising a front end, a rear end, first and second opposed sidewalls, and a suction motor provided in the air flow path. A cyclone bin assembly may be provided in the air flow path. The cyclone bin assembly may have opposed end walls and may comprise a cyclone chamber having a diameter. Each of the first and second opposed sidewalls may comprise a wheel having a diameter larger than the diameter of the cyclone chamber.

Abstract: A purification arrangement for a gas pipeline system includes a pressure vessel and at least a modular separator assembly and a modular filter assembly in the interior of the pressure vessel. A gas flow may be established through the pressure vessel, and the gas may pass through the modular separator and filter assemblies to remove liquid and/or solid particulates from the gas.

Abstract: A vehicular air cleaner may include: a body having an air inlet port; a cover coupled to a body and having an air outlet port; an element inserted into or drawn from the body and the cover through a access port formed in one side of the body and the cover; a positioning assembly rotatably coupled to a lower portion of the element and vertically moving the element by rotation; and an element cover coupled to the body and the cover to prevent the element from being separated from the access port, wherein the positioning assembly includes driving shafts each fitted with fixing brackets formed on a flange along a side direction of the element, and a driven shaft fitted with a fixing bracket formed on a flange along a front side of the element and having ends rotatably engaged with a pair of driving shafts.

Abstract: A system and methods for separating liquids, aerosols, and solids from a flowing gas stream whereby gas flows through a helical path formed in a separator element. Partially separated gas exits the bottom of the separator element at a generally conical cavity. Clean gas exits through an inner tube that is axially aligned beneath the helical path. Separated materials exit through an annular space between the inner tube and an outer tube. Separation occurs in the helical channels which include radially diverging walls to provide an aerodynamically efficient flow, in a region of high swirl created in a generally conical cavity beneath the separator element, and in a toroidal vortex ring created in the annular space. The area and geometry of the helical path, the conical cavity, and the inner and outer tubes is optimized to provide efficient separation at varying gas flow rates and at varying liquid loads.

Abstract: An air filter element (10) with a cylindrical central pipe (11) is provided wherein at one end of the central tube (11) a device (18) for transmission of torque from a tool to the air filter element (10) is provided and at the other end of the central tube (11) a fastening device (14) for detachably mounting the filter element (10) within a cylindrical support body (21) by means of an insertion/rotation movement is provided.

Abstract: An air filter arrangement has a filter housing (10) for connection to a duct (80) for a combustion engine. The filter housing (10) has a cover (30) for closing a top aperture of the filter housing (10). An engine air outlet (40) is on the cover (30). A flexible pipe section (42) on the engine air outlet and for connection to the duct, the flexibility to allow the cover (30) to be removed from the top aperture and a filter unit to be introduced into or taken out from the filter housing (10).

Abstract: A portable dust collector comprises a rectangular box-shaped housing containing a rectangular box shaped filter chamber having a dust collection volume in a lower portion thereof and providing plenums for operative gas circulation in a compact environment. The filter chamber shares a portion of the floor with the housing and has a pair of internal parallel sidewalls spaced inwardly from the outside sidewalls of the housing. The internal sidewalls define a plurality of filter chamber dirty gas inlets located just under an apertured cell plate from which the filters hang. The system is provided with a pulse jet cleaning system located in the clean air plenum above the cell plate.

Abstract: A cyclone comprises a second or lower portion that is pivotable with respect to a first or upper portion about an articulation between a first position and a second position; the second portion being aligned with the first portion along a first or vertical axis when the second portion is in the first position, and the second portion being aligned on a second axis that is different from the first axis when the second portion is moved from the first position to the second position. In various additional embodiments, the second axis may be normal to the first axis, for example, in the first position the lower portion is horizontal and in the first position the lower portion is vertical and aligned with the upper portion. The second position may be used as a cleaning position. When the lower portion is pivoted away from the upper portion, the vortex is interrupted. In the second position, the lower portion may also interface with a suction mechanism.

Abstract: A fracking trailer includes a particulate storage enclosure to receive a mixture of particulate and air in an interior of the particulate storage enclosure having a front end and a rear end. The fracking trailer also includes a filtration system connected to the particulate storage enclosure at the front end to filter particulate from the air in the mixture and exhaust filtered air.

Abstract: Crankcase ventilation filter assemblies, features, components, and methods of assembly and use provide for convenient assembly; efficient space usage; and/or preferred operation.

Abstract: A powder cyclone separator for use in a powder coating system is contemplated that is formed in two separate and separable sections. An upper section of the cyclone is mounted on a first frame and remains stationary. A lower section of the cyclone is mounted on a second frame that is movable laterally away from the first frame so that an operator has more ready access to clean interior surfaces of the upper section. Optionally, actuators may be provided to vertically raise and lower the cyclone lower section with respect to the cyclone upper section. Various optional alignment means are presented for aligning the cyclone upper and lower sections. Preferably, a control mechanism is mounted on the second frame which includes a switch that is manually operated by the user to raise and lower the lower section with respect to the upper section. This design allows an operator to see, and therefore verify, that virtually all internal surfaces of the cyclone have been effectively cleaned.

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 frac truck is provided for the portable metering and dispensing of sand into a fractionation fluid system. Hopper vessels for powder, sand or other aggregate have a discharge vent for releasing air that is displaced during the filling of the hoppers. Venting is required to prevent over pressurization; conventionally, this vented gas entrains a significant amount of solids that would subsequently be released into the atmosphere. A dust collector is mounted for receiving the vented air displaced when powdered material is loaded into the hoppers. The dust collector is connected through a vent tube communicating between the hoppers and the dust collector. Air vented from the hoppers is drawn though the dust collector and past and through a filter media, where clean air is discharged and solids collected. A low profile rotary airlock is used to discharge solids from the bottom of the dust collector.

Abstract: A powder cyclone separator for use in a powder coating system is formed in two separate and separable sections. An upper section is mounted on a first frame and remains stationary. A lower section is mounted on a second frame that is movable laterally away from the first frame so that an operator has more ready access to clean interior surfaces of the upper section. Optionally, actuators may be provided to raise and lower the cyclone lower section with respect to the cyclone upper section. Optional alignment means are presented for aligning the cyclone upper and lower sections. A control mechanism may be mounted on the second frame which includes a switch that is operable to raise and lower the lower section with respect to the upper section. This design allows an operator to see and verify that virtually all internal surfaces of the cyclone have been cleaned.

Abstract: A method of reducing silicosis caused by inhalation of silica-containing proppant, such as silica sand and resin-coated silica sand, and apparatus therefor. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: Segmented stackable filter assembly for filtering a gas and method of manufacturing same. An exemplary embodiment of the segmented stackable filter assembly comprises a plurality of filter segments stackable end-to-end for varying filtration capacity of the stackable filter assembly. Each filter segment includes an annular outer wire mesh and an annular inner wire mesh spaced apart from the outer wire mesh to define a gap therebetween containing filter media. The inner wire mesh defines a central air flow passage axially through the filter assembly. A lower end plate has an opening for receiving a neck portion upwardly projecting from an adjacent upper end plate, so that both filter segments are prevented from laterally moving relative to each other. A fan assembly is supported by the neck portion for suctioning the gas through the plurality of filter segments.

Abstract: An oxygen generator includes a stationary unit and a portable unit. The portable unit includes a compressor, molecular sieves, controllable valves and an enriched gas storage chamber. The stationary unit includes a compressor having a greater capacity than a capacity of the portable compressor.

Abstract: A transportable field containment system with transparent hood. The transportable field containment system being easily and rapidly deployable and transportable by virtue of its relatively small size and light weight, a collapsible transparent hood that covers the containment area over a work site on the ground, the hood including detachable or folding side panels and removable door panels. The system preferably includes an exhaust component that creates negative air pressure in the containment area under the hood, thereby drawing air that contains hazardous substances, that may be released while the work is being conducted, through one or more off-gas filters.

Abstract: A method of reducing silicosis caused by inhalation of silica-containing proppant, such as silica sand and resin-coated silica sand, and apparatus therefor. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: The present invention provides a dust collector structure, especially a low-cost and simplified dust collector structure, which includes a leg frame set, an air-guiding box and a driving unit. The leg frame set includes two inverted U-shaped frame rods which are integrally formed and correspond to each other. The air-guiding box is arranged across top ends of the two frame rods, and is made by correspondingly closing an upper cover and a lower cover which are formed through integral draw molding. A driving unit for driving a blowing fan is arranged at an end of the air-guiding box. An air-filtering bag and a dust-collecting bag corresponding to each other are arranged at an end opposite to the driving unit on the upper and lower covers of the air-guiding box. Thus, structural components can be greatly simplified.

Abstract: A dust arrester includes a housing with air inlet and air outlet, wherein the ambient air containing dust particles can be introduced into the housing via the air inlet and discharged from the housing via the air outlet. The dust arrester further includes a water trough placed in the bottom of the housing and a chaos effect generator including a nozzle and a material. The nozzle can spray water supplied from the water trough. The water sprayed interacts with the material to generate a chaos condition, so that the dust particles can be removed from the introduced air under the chaos condition.

Abstract: A portable air filter having a cylindrical, perforated shell with an end wall at one end closing the shell and an end wall at the other end having an opening. A hepa filter is removably mounted within the shell adjacent the perforations. The air filter has a blower unit with a through duct and a fan and a motor in the duct. The blower unit is detachably mountable on the shell adjacent the end wall at the other end with one open end of the duct extending through the opening in the end wall. Air is drawn through the perforated shell and hepa filter into the duct and out of the duct through its other open end away from the air filter.

Abstract: A dust collection system has a cyclone separator in which dust is separated from an air stream and the air stream is passed from a separator and flows through a final filter back into the ambient air. A flame arrester is positioned downstream of the separator, either in advance of or after the final filter. The flame arrester defines a multiplicity of narrow channels to permit exhaust air flow but block any flame front. In a preferred embodiment the flame arrester is in the form of a sheath of a porous metal material surrounding the final filter. The sheath may comprise a metal wire mesh screen, with a guard cage surrounding the screen.

Abstract: A movable air purification robot system may automatically eliminate dust, bacteria and smell from air while freely moving along a polluted area irrespective of a space dimension. The movable air purification robot system includes an air purification robot which has an air pollution detector detecting pollution and humidity of floating substances contained in air, an air purifier circulating the air containing pollutants by means of the air pollution detection unit and filtering, absorbing and purifying the same, a robot propulsion unit formed of two driving wheels disposed at both lower sides of a robot body and independently operating, an obstacle detector detecting obstacles a robot user interface allowing a user to operate the robot, a robot control unit controlling the operations of each element, and a power unit supplying electric power to operating elements.

Abstract: A dust collector arrangement has a dust separator supported on a frame, with a lid for the dust collection barrel is mounted onto the frame below it. The lid is supported at a fixed elevation above the surface of the shop floor to create a space or clearance between the rim of the dust collection barrel and the lid. The barrel is supported on casters, and can be rolled into place under the rim, and can be rolled out for emptying. Over-center latches positioned at intervals around the upper part of the barrel side wall, engage corresponding structure on the lid. These pull the barrel upwards against the lid and with the barrel casters lifted off the floor surface. The latch members release to lower the barrel for emptying.

Abstract: A frac truck is provided for the portable metering and dispensing of sand into a fractionation fluid system. Hopper vessels for powder, sand or other aggregate have a discharge vent for releasing air that is displaced during the filling of the hoppers. Venting is required to prevent over pressurization; conventionally, this vented gas entrains a significant amount of solids that would subsequently be released into the atmosphere. A dust collector is mounted for receiving the vented air displaced when powdered material is loaded into the hoppers. The dust collector is connected through a vent tube communicating between the hoppers and the dust collector. Air vented from the hoppers is drawn though the dust collector and past and through a filter media, where clean air is discharged and solids collected. A low profile rotary airlock is used to discharge solids from the bottom of the dust collector.

Abstract: A dust collection arrangement employs a variable frequency drive to supply AC to its fan motor. A current sensor measures the current drawn by the motor, and this is compared with a preset value. The variable frequency drive adjusts the frequency of the AC applied to the motor to maintain the motor current at the preset level. This keeps the flow of air in the system optimal as dust producing tools are added or taken off.

Abstract: A filter element including an end cap is provided. The end cap includes an annular seal support carrying an annular seal member and a mounting arrangement to seal and support the filter element in a filter housing. The end cap is configure to engage with a mating engagement structure of the housing to provide self alignment feature of the filter element.

Abstract: A portable dust collector comprises a rectangular box-shaped housing containing a rectangular box shaped filter chamber having a dust collection volume in a lower portion thereof and providing plenums for operative gas circulation in a compact environment. The filter chamber shares a portion of the floor with the housing and has a pair of internal parallel sidewalls spaced inwardly from the outside sidewalls of the housing. The internal sidewalls define a plurality of filter chamber dirty gas inlets located just under an apertured cell plate from which the filters hang. The system is provided with a pulse jet cleaning system located in the clean air plenum above the cell plate.

Abstract: A portable air filtration system used in industrial environments to filter and re-circulate fumes from a fume source includes a housing that filters the fumes from the fume source. The housing defines at least one housing inlet to receive the fumes and a housing outlet to dispense the fumes. A receiving assembly is releaseably engageable with the at least one housing inlet and includes a receiver inlet and a receiver outlet. The receiver outlet is in fluid communication with the at least one housing inlet. The receiver inlet receives the fumes from the fume source and transfers the fumes to the housing inlet. The system is capable of being modified between a plurality of configurations.

Abstract: A foldable dust collector of the present invention includes a supporting portion, a case and an air pump. The supporting portion is foldable. The case is disposed on the supporting portion. The case is pivotable with respect to the supporting portion. The air pump is disposed on the case. The air pump is used for drawing air into the case. Therefore, the foldable dust collector of the present invention can be transformed. A width of the foldable dust collector is changeable. As such, the foldable dust collector is easier to be stored or be transported. Moreover, the foldable dust collector can be used in a small space.