Abstract: The present disclosure relates to an air handling system which has a fan supply section for intaking warm air from a room environment, and first and second indirect evaporative cooling subsystems (IDECs) spaced apart from one another to form an air plenum and a hot aisle in communication with the air plenum. The air plenum and the hot aisle are both formed between the IDECs, with the air plenum communicating with the fan supply section to receive the warm air. The IDECs receive the warm air and cool the warm air to produce first and second cooled airflows. The system also includes spaced apart cold aisles adjacent each of the IDECs for channeling the cooled airflows into an evaporator section. The evaporator section produces a final cooled airflow which is directed back into the room environment.

Abstract: Embodiments of the present disclosure relate to a condenser assembly for a heating, ventilation, and/or air conditioning (HVAC) system that includes a condenser coil having a plurality of tubes configured to flow a refrigerant therethrough for heat transfer between the refrigerant and a flow of air passing across the plurality of tubes, and a porous material having a plurality of fluid retaining passages, in which the plurality of fluid retaining passages is configured to receive a fluid and enable the flow of air to pass through the porous material and transfer of thermal energy to between the fluid and the flow of air. The porous material is disposed upstream of the condenser coil with respect to the flow of air such that the flow of air passes through the porous material before passing across the plurality of tubes.

Abstract: An air conditioning and humidity control system, a kit, and methods of making and using the same are disclosed. The air conditioning and humidity control system includes a main conduit, distribution conduits joined to the main conduit, one or more mesh members, one or more troughs or pans below the mesh member(s), and a pump. The distribution conduits receive a fluid from the main conduit and include one or more holes to distribute the fluid. The mesh member(s) receive the fluid from the distribution conduits, and allow the fluid to flow along its length. The trough(s) or pan(s) collect the fluid from the mesh member(s). The pump receives the fluid from the trough(s) or pan(s) and pumps the fluid to/through the main conduit. The air conditioning and humidity control system effectively controls the temperature and humidity of an enclosed room or building, improves air quality, is simple and inexpensive to make and operate, and avoids use of greenhouse gases.

Abstract: When mineral components such as calcium carbonate and magnesium are contained in humidifying water and a humidification plate has holes and high humidifying efficiency, scales may be locally generated at an end or vicinities of the holes on a windward side. When minute voids in the humidification plate are clogged due to the scales, water absorption capability at a scale generation region is significantly reduced. A problem can arise requiring to replace the humidification plate even when a region other than the end and the vicinities of the holes is satisfactory, whereby replacement cycles are shortened. To address the problem, plural openings in a plate thickness direction are distributed on a flat plate surface of a water absorbing humidifying material. Thus, in an airflow direction of air sent from end sides of the water absorbing humidifying material, opening areas of the plural openings on one end side are increased.

Abstract: The invention relates to a cover (1) suitable for installation at least facing a heat exchanger (28) between a feed gas flow for an internal combustion engine and a so-called coolant, said heat exchanger (28) comprising a bundle (32) and an area (33) for distributing the coolant in the bundle (32), characterized in that the cover (1) comprises a protrusion (2) suitable for limiting the circulation of the feed gas flow at the coolant distribution area (33).

Abstract: Disclosed herein are a humidifying apparatus which may be prevented from being contaminated. A humidifying apparatus comprises a water tank configured to store water, a filter assembly configured to filter the water stored in the water tank and a humidifying assembly configured to perform humidification by absorbing and vaporizing the water filtered by the filter assembly, a drain flow passage provided at a lower surface of the humidifying assembly, wherein residual water remaining after being absorbed in the humidifying assembly is recovered in the water tank via the drain flow passage, and a guide rib configured to guide the water recovered in the water tank is provided in the water tank.

Abstract: A humidifier that suppresses formation of a slime, a scale, and a dew bridge in a lower portion of a humidifying member thereby preventing degradation in humidifying performance. The humidifier includes one or more porous metal bodies serving as the humidifying member and including therein a plurality of voids, a fan that blows air to the porous metal body, a water-supplying device (a supply pipe, a reservoir, and a nozzle) that supplies water to the porous metal body, and the porous metal body includes a tip portion formed in a lower end portion, in a protruding shape or a pointed shape.

Abstract: The present invention relates to liquid to air evaporative heat exchange apparatus, mainly for cooling towers, air conditioning units, and humidifies alike. The present invention incorporate an evaporative module embedded with a liquid delivery system with flow directors to control the flow of liquid through all of its layers. Such a design allows for an even and smooth liquid distribution, while at the same time maximized the duration and surface area for heat exchange to take place. The evaporative module of the present invention can be sealed off at various sections to redirect airflow. Such a design serves dual functions as a drift eliminator or regulator.

Abstract: A liquid flow distributor for positioning above one or more packing sections in a packed exchange tower includes a plurality of troughs. At least one trough in the plurality of troughs has along a side thereto a deflecting member The deflecting member is angulated to generally follow a shape of the at least one trough. A diffuser side of the deflecting member is positioned to deposit the liquid into a discharge region. A plurality of break bars are disposed on the diffuser side of the deflecting member. A deflector side of the deflecting member is positioned for deflecting ascending vapor away from the discharge region.

Abstract: A humidifier for an HVAC system includes a replaceable humidifier pad, and a housing for holding the replaceable humidifier pad in an operating position during operation of the humidifier. The back side of the housing may define an air flow aperture that is in fluid communication with the replaceable humidifier pad when the replaceable humidifier pad is in its operating position. In some instances, the right side of the housing may define a first aperture that is sufficient in size to remove the replaceable humidifier pad from the housing, and to install a new replaceable humidifier pad. Likewise, the left side of the housing may define a second aperture that is sufficient in size to remove the replaceable humidifier pad from the housing, and to install a new replaceable humidifier pad.

Abstract: An absorber is provided which uses a liquid solvent formed into a myriad of bubbles and micro-droplets. The solvent froth is a solvent for a selected component in an incoming gas stream. A plurality of spaced apart mesh assemblies is placed in one or more absorber tubes or in a reaction vessel. Using screens having cross-sections that are substantially rectangular wave in design together with proper operating parameters, the phenomenon of solvent pulsing is induced and maintained, maximizing efficiency of the absorber.

Abstract: A method of conducting a distillation process and a cross-corrugated structured packing for use in such a process in which ascending vapor phases and descending liquid phases are contacted in such packing. The cross-corrugated structured packing contains corrugated sheets fabricated of an open cell foam-like material. The liquid phase produces a liquid film descending along struts forming cells of the material and the vapor phase ascends within the cross-corrugated structured packing and enters the cells and contacts the liquid film. The cross-corrugated structured packing is configured such that a superficial velocity at which ambient air would flow through the cross-corrugated structured packing at a pressure drop of 0.3? wc/ft is no greater than 20 times a reference superficial velocity at which the ambient air would flow through the foam-like material making up the corrugated sheets at the same pressure drop to ensure that vapor enters the cells of the foam-like material.

Abstract: A structured packing for a reactor is formed from a metal sheet to promote heat and mass transfer near the wall of the reactor. The structured packing causes lateral flow of fluids flowing through the packing such that jet impingement of at least one reactor wall is promoted. The packing may be used in a cylindrical, annular or plate-type reactor, e.g., a catalytic reactor, or a heat exchanger.

Abstract: An aerator for fluids, such as wine, includes an upper bowl portion with a set of openings in the base, a restrictor plate with, in the preferred embodiment, three sets of apertures. Each of the restrictor plate aperture sets can be aligned with the bowl openings to provide three different flow rates. A collar portion selects the aperture set to be aligned and includes vents to permit air into a central flow path wherein the wine is aerated as it flows through the collar portion.

Abstract: A vaporizer is provided with a vaporizing chamber heated by heaters; a primary filter positioned in a bottom end portion of the vaporizing chamber and heated by the heater; a liquid material supply portion for dropping down a flow-controlled liquid material from upper portion of the vaporizing chamber toward the primary filter; a carrier gas guiding passage for guiding a carrier gas into the underside of the primary filter; and a material delivering passage for discharging a mixed gas including the carrier gas and a vaporized liquid material from the top of the vaporizing chamber. The liquid material dropped down onto the primary filter is partially vaporized, while the rest thereof is atomized by being subjected to bubbling effect provided by the carrier gas flowing from underneath.

Abstract: The invention relates to a panel, comprising: two plates of substantially equal dimensions positioned on each other; which plates are connected medium-tightly to each other along their peripheral zones; which plates enclose a cavity; a feed for feeding a liquid, in particular water, into the cavity; and openings close to and along a peripheral edge of the panel for flow of the liquid out of the cavity during operation such that during operation the openings are situated close to the upper peripheral edge of the panel, wherein the liquid flows downward over at least one outer surface of the panel.

Abstract: A fabric packing has a plurality of layers made of a filament of metal or plastic and includes bulges for maintaining the fabric layers at a distance. The bulges have first protuberances of generally trough-shaped configuration and second protuberances formed on the first protuberances, thereby defining respective apexes. The second protuberances are sized smaller than the first protuberances, wherein neighboring fabric layers are supported on one another via the second protuberances.

Abstract: A humidifier pad assembly for a humidifier that is configured for adding humidity to an air stream of an HVAC system of a building or other structure. The humidifier pad assembly may include a frame for holding a replaceable humidifier pad within the housing of the humidifier. The frame may be structured to hold the replaceable humidifier pad within the housing such that a back major surface of the replaceable humidifier pad generally faces the back side of the housing, and a front opposing major surface of the humidifier pad generally faces the front side of the housing. The frame may further be structured to permit removal and replacement of the replaceable humidifier pad through the front side of the frame. In some cases, the housing may be configured such that the frame (and the replaceable humidifier pad) may be slid out of apertures in the right side and/or left side of the housing.

Abstract: A humidification system includes a humidifier housing mountable to the air duct. The humidifier housing has an opening to provide fluid communications between the humidifier housing and the air circulation system. An air inlet extends through the duct opening into the humidifier housing. A duct damper extends into the air duct and is reversibly positionable between a stowed position and a deployed position. The stowed position is characterized by placement of the duct damper substantially adjacent to the humidifier housing while the deployed position is characterized by positioning a portion of the duct damper deeper into the air duct. An evaporative element is positioned between the air inlet and an air outlet. A cover is configured to reverse the direction of flow air sending it to the air outlet extending into the air duct. A deploying means changes the duct damper between the stowed position and the deployed position.

Abstract: In the evaporative humidifier of the present invention, a desired humidity is obtained by supplying water only to a humidifying module required for humidification. Air simply passes through a humidifying module to which water is not supplied. Accordingly, air obtained by mixing humidified air passing through the humidifying module which is wet with water being supplied thereto (wet zone) and non-humidified air passing through the humidifying module to which water is not supplied (dry zone) is blown out from an outlet of the evaporative humidifier. The mixture amount (mixture ratio) is controlled by the opening and closing of the valve, so that a desired humidity is obtained. Therefore, with the evaporative humidifier of the present invention, humidity control can be accurately performed without unnecessarily operating the humidifying device and without wasting energy.

Abstract: The invention relates to a distribution device (1) for distributing liquid over an underlying catalyst bed comprising a horizontal collection tray (2) provided with at least one gas chimney (3) for upward or downward passage of gas and with liquid dosing nozzles (4) for downward passage of liquid, wherein the gas chimney(s) (3) and liquid doing nozzles (4) are separate from each other and do not have the same longitudinal axis, and wherein each liquid dosing nozzle (4) comprises a concentrically arranged liquid passing hole (5) and splash plate (6), wherein the splash plate (6) is located below the liquid passing hole (5) and below the collection tray (2) such that there is a free fall distance for liquid of at least 100 mm between the hole (5) and the splash plate (6). The invention further relates to a reactor for hydroprocessing comprising such distribution device (1), the use of such reactor for hydroprocessing and a process for hydrocracking or hydrotreating in such reactor.

Abstract: The present invention relates to a very simple cooling system that uses the evaporation of water present in a cloth sheet that can lower the temperature of the air that passes through the wet cloth.

Abstract: A nitrate reduction device has a cadmium structure forming a plurality of longitudinal channels within a flow chamber, which may be formed by a plurality of wires. The device is used to reduce nitrate to a final nitrite product for analysis.

Abstract: A device for distributing fluid into a monolith bed includes a plurality of flow channels stacked in order of decreasing diameter. The flow channels successively split a flow stream into a multiple flow streams prior to the flow stream entering the monolith bed.

Abstract: A water spreader arrangement for use in an evaporative air cooler in which the spreader includes an inlet leading to generally vertical projections disposed over several levels. The projections are adapted to divide a single stream of water entering the inlet into many outlet streams, all of which have a predetermined ratio of flow rates. The outlet streams can be fed to an evaporative pad of an evaporative cooler. In a preferred form, the outlet streams have substantially the same flow rate. Preferably, a cooler incorporating this water spreader arrangement would include several spreaders around the upper periphery of the evaporative pads.

Abstract: A method and apparatus for wet filtering machine exhaust is disclosed.

Abstract: In an vapor-liquid contactor 4a for flowing down a liquid along the surface of a packing and contacting said liquid with the vapor while ascending the vapor, the improvement being characterized in that said packing is a non-promoting-fluid-dispersion type structured packing A1, A2 in which various types of thin sheets or tubes for determining the flow direction of the above liquid or vapor is laminated and arranged in the perpendicular direction, and said contactor includes at least one fluid distribution unit E1, E2 formed of a rough distribution part C1, C2 to distribute the liquid roughly and a minute distribution part B1, B2 to distribute the liquid minutely and equally.

Abstract: The present invention is an indirect evaporative cooling module preferably made from extruded, twin-walled, corrugated, fluted plastic sheeting. Sheets of this corrugated material are cut into plates which are preferably laminated together to form the primary and secondary passages that comprise the heat exchanger core. These passages can be configured any number of ways, from vertical to horizontal to diagonal, and flow through these passages can be cross-flow, counter-flow and even baffle-flow. Increased heat exchange efficiency is achieved through a variety of ways, for example, by including an efficient water distribution means at the top of the heat exchanger, evaporative mesh extending through and below the heat exchanger for water distribution and pre-cooling, the creation of top and bottom heat exchange chambers by channeling water directly to the bottom zone of the heat exchanges passages, and roughening the surface of the sheets to increase heat transfer and to increase surface area.

Abstract: An adaptable evaporative element for a humidifier or the like is described. It includes an evaporative element having a fold, such that the size of said evaporative element is adaptable by varying said evaporative element between a folded and an unfolded configuration. Alternate embodiments use a hinge over a portion of the thickness of the evaporative element, separable layers or an attached cutting guide as additional means of adapting the evaporative element.

Abstract: A humidification system having a humidifier housing having a supply water inlet and an excess water outlet, which excess water outlet is in fluid communication with a water reservoir vessel. A pump is provided by way of which water in the water reservoir vessel is circulated to the supply water inlet of the humidifier housing.

Abstract: The invention relates to an apparatus and process for the vaporization of liquid precursors and deposition of a film on a suitable substrate. Particularly contemplated is an apparatus and process for the deposition of a metal-oxide film, such as a barium, strontium, titanium oxide (BST) film, on a silicon wafer to make integrated circuit capacitors useful in high capacity dynamic memory modules.

Abstract: The present disclosure relates to an evaporative cooler including first and second trays each having a longitudinal axis. Each tray includes a bottom wall and two side walls that project upward from the bottom wall and extend generally parallel to the longitudinal axis of each tray. Each tray also includes two end walls that project upward from the bottom wall and extend between the side walls. Each tray further includes spaced apart cooler media retaining members that are generally parallel to the longitudinal axis of each tray. The trays are positioned in an end-to-end relationship such that the longitudinal axes of the trays are generally aligned with one another, and one of the end walls of the first tray is positioned adjacent to one of the end walls of the second tray. The evaporative cooler also includes an elongated clip adapted to extend the between the adjacent end walls of the first and second trays for inhibiting water leakage between the adjacent walls.

Abstract: The invention provides a conversion means for converting a fixed type evaporative cooler (10) to a mobile type that includes a base with an opening (15), a sump (14) which can be of a size to suit one or more large coolers, means to accommodate a pump in the sump, wheels (24) firmly attached to the sump for support and mobility thereof, a filling station (22) for depositing water into the sump, and means to secure the sump to the base of a large cooler (12). The means to accommodate the pump includes a buoyant platform (16) thereby enabling the pump to remain in communication with fluid in the sump irrespective of the fluid level.

Abstract: An apparatus for manufacturing carbonated water according to the invention can quickly produce carbonated water with a high carbonic acid gas content which does not easily lose carbonic acid gas and hence satisfactorily stimulates the throat with agreeable pungency. Since it has a simple configuration and hence is economic and effective, it can suitably be used in a carbonated beverage supplying apparatus such as an automatic vending machine, an automatic dispenser or the like. With such an arrangement, the apparatus improves its safety and hence can constantly supply delicious carbonated water.

Abstract: A downcomer having a screened or otherwise liquid permeable wall is provided for use in a mass transfer or distillation column. The liquid permeable wall provides another avenue for liquid to be removed from the downcomer to increase the liquid handling capacity of the downcomer. When wetted, the liquid permeable wall provides a barrier against vapor entry into the downcomer through the wall.

Abstract: An apparatus for manufacturing carbonated water according to the invention can quickly produce carbonated water with a high carbonic acid gas content which does not easily lose carbonic acid gas and hence satisfactorily stimulates the throat with agreeable pungency. Since it has a simple configuration and hence is economic and effective, it can suitably be used in an carbonated beverage supplying apparatus such as an automatic vending machine, an automatic dispenser or the like. With such an arrangement, the apparatus improves its safety and hence can constantly supply delicious carbonated water.

Abstract: A humidifier for use with counter- or down-flow furnaces such as those traditionally found in mobile homes. The humidifier includes a louvered tip-out access door, behind which is housed a drawer containing a water panel. The drawer is detachably snap-fitted to the inside of the access door. Water is directed onto the water panel by a water dispersion bar, which is snap-fitted into the top of the drawer above the water panel. As air is drawn through the humidifier which is installed over the return air louvers of a counter-flow furnace, tiny water droplets in the water panel are picked up by the moving air stream and carried into the home. The tip-out feature of the access door and the snap-fit connections allow for simple, easy repair and cleaning, even by an untrained person, thus avoiding the need for a skilled technician when only routine maintenance is necessary.

Abstract: A portable evaporative cooling unit (10) is disclosed. A housing (12) has a front opening (46) and a rear opening (20). Air-permeable water absorption media (22) are disposed across the rear opening (20) of the housing (12). An electric motor driven fan (42) having fan blades (44) is disposed in the front opening (46) of the housing (12) for drawing air through the water absorption media (22). A supply conduit (94) connects a water pump (52) to an elongated horizontal spray bar (64) disposed above the water absorption media (22). The spray bar (64) extends substantially the width of the water absorption media (22) and has a plurality of spaced holes (72) in its upper surface for distributing water. A foam sleeve (68) is disposed around the entire length of the spray bar (64). The foam sleeve (68) absorbs water expelled from the plurality of holes (72) and distributes the water onto the water absorption media (22).

Abstract: An apparatus for dispensing odorant vapor into an air stream is disclosed. The apparatus contains a reservoir for containing a volatilizable liquid, a dispensing well, liquid moving means for withdrawing liquid from the reservoir and causing it to flow into the dispensing well, and switch means for activating the liquid moving means.

Abstract: An evaporative cooling system for mounting on the roof of a vehicle in which the sole source of water supply for the evaporative media in the system is contained in a low-profile housing mounted above the roof line of the vehicle.

Abstract: An evaporative cooler apparatus and method of operation are disclosed. The invention was conceived and developed to humidify and cool the attic space between the roof and the ceiling of man-made buildings or other structures. The apparatus is comprised of an induced draft fan assembly which blows air through an evaporation bundle comprised of one or more concentric cylinders of fibrous evaporation pads. The most advantageous embodiments of the invention and optimum parameters of operation result in reduced costs for installation, for evaporation water, for electrical power, and for service and maintenance as compared with devices of the prior art.

Abstract: In power switches, conductive coupling of the control signal inputs to the power switching stage, and to the load to be switched, can result in impairment of control function. Moveover these power switches known in the art, have the disadvantage that the drive circuit and power switching stage must lie at the same potential. An improved self protecting power switch includes a first drive unit and a second drive circuit that are connected together via a pulse transformer. The first drive unit generates successive pulse trains in response to a control signal. A second drive unit regenerates square wave signals for the control of the power switching stage.

Abstract: A header assembly comprises a plurality of substantially V-shaped, slotted troughs disposed in a substantially parallel relationship and interconnected perpendicularly to a manifold. Each trough comprises two substantially parallel, rigid side walls, two rigid end plates and two oblique walls which converge and attach to define an apex of the V-shaped trough. A plurality of alternating spacing elements and slots extends longitudinally along the length of the trough and equidistantly and obliquely along both oblique walls at the apex of the trough. Each trough contains a fiberglass-woven cord extending along the length of the trough and is disposed above the spacing elements and slots and in contact with both oblique walls.

Abstract: A combined decorative object for household decoration and humidification is disclosed. The device makes use of the aesthetic qualities of flowing water, and comprises an inclined panel having discontinuities formed therein such that water flow thereover is interrupted in a manner which is pleasing to the eye. The panel may comprise a number of panes of glass in edge-overlapping, abutting relation to one another such that water flowing over the panels essentially adheres to the panels, such that splashing is avoided in favor of burbling. In this way, excessively large water droplets are not released to the atmosphere, which tends to damage other household goods in the vicinity of the device.

Abstract: An improved liquid flow distributor for a process column of the type wherein the distributor is positioned above a packing section for the distribution of liquid downwardly therethrough. The improvement comprises a plurality of troughs formed with a downwardly tapering body section having holes formed therein for spewing liquid outwardly therefrom. Baffles are disposed outwardly of the lower tapering body sections of the troughs for receiving the spew of liquid therefrom and evenly distributing the liquid flow downwardly. A plurality of flow equalization pipes interconnect the troughs one with the other and are coupled to the troughs through a lower sidewall region thereof. In this manner, flow equalization between troughs is provided and the flow equalization pipes are presented in a configuration allowing debris to be removed therefrom. In one embodiment a series of screens are secured to the bottom regions of the baffles for further facilitating uniformity in flow distribution emanating from the troughs.

Abstract: A contact body especially for evaporative cooling of a flow of useful air by means of a flow of cooling air. The contact body is built up of layers with slots existing between the layers, which slots are passed by the two air flows separated from each other, the heat exchange being effected through the walls of the layers. The layers comprise panels rigid in shape and composed of plane plates located in parallel adjacent relationship. Arranged between the plane plates are stiffening members provided with flanges and defining the clearance between the plane plates and extending in the direction of flow of the stream of useful air. The panels are composed to a contact body by means of straight, elongated spacer members, which extend in the direction of flow of the stream of cooling air.

Abstract: A single monolithic moulding of a fan volute and water spreader for an air cooler. There is provided at least one shelf, either on the volute or on the spreader, which supports the spreader from the volute, the spreader being of generally curved shape and outstanding from the outer surface of the volute. Link means hinge the spreader to the volute to enable the spreader to be tilted, for example for replacement of an absorptive pad which can depend from the spreader.

Abstract: A gas treating system including a housing forming a duct for a gas stream having a vertical panel of flow-through evaporative media secured across the duct, a blower mounted within the duct downstream from the panel adapted to draw the gas stream through the duct, a liquid dispersal assembly connected to a liquid supply adapted to conduct an evaporative treating fluid into the panel where it evaporates into the gas stream as it flows through the panel, and humidity or temperature sensors positioned within the duct downstream from the blower operatively connected with the liquid supply to increase and decrease the flow of liquid into the panel to maintain a preselected humidity or temperature in the gas stream as it flows out of the housing.

Abstract: A humidifier that will operate without being supplied with power from an outside source is provided. The humidifier must be placed directly in the stream of heated air coming from a heat source in order to properly operate. The humidifier is comprised of a housing, a hydrocell, and an evaporative element. The hydrocell and the evaporative element are both located within the housing, the evaporative element being directly below the hydrocell. The hydrocell is heat-responsive, and when it is heated, water will drip from the hydrocell onto the evaporative element. The heated air passing thru the humidifier will first contact the now-moist evaporative element and absorb some of the humidity therefrom. An optional feature of this invention is a valve located within the hydrocell that is connected to a water source and which will regulate the flow of water into the hydrocell without the need of human assistance.

Abstract: Evaporation air humidifier having a water supply container with a filter support plate carrying an evaporation filter, and having a removable auxiliary plate whereon electrical components are assembled including a motor and a pump driven thereby and extending into the water supply container, as well as a fan blade disposed on an upper side of the motor, and an installation housing, and further having a connecting hose interconnecting the pump and the evaporation filter and a dome with air inlet and outlet openings including a guide member carried by the auxiliary plate at the underside thereof, a guide secured to the water supply container and engageable with the guide member, a first coupling member for the connecting hose carried by the auxiliary plate, a second coupling member held by the filter support plate, the first coupling member being automatically couplable with the second coupling member when the guide member and the guide are mutually engaged.