Abstract: Apparatus and a process are described, wherein furnace flue gas, containing moisture, is expanded through a pressure drop sufficient to cause saturation of the gas. The resulting condensation of water increases the mass of particles, making them easier to separate from the gas. Acid components of the flue gas may be similarly rendered more easily separable. These wetted particles are then separated and removed from the flue gas. The cleaned flue gas is then compressed back up to chimney pressure for discharge.

Abstract: A liquid reservoir tank assembly includes a gas-liquid separator, such as an air-oil separator. A tank body has an open end, a portion of the tank body forming a liquid separation chamber, another portion of the tank body forming a liquid reservoir. A tank cover covers the open end of the tank body, the tank body and the tank cover providing a gas inlet and a gas outlet with a gas flow through the separation chamber from the gas inlet to the gas outlet. The gas-liquid separator is mounted in the separation chamber in the gas flow between the gas inlet and the gas outlet. The separator has a coalescing stage layer and a drain stage layer arranged radially symmetrically about an axis extending through the interior of the separator, the coalescing stage layer being upstream of the drain stage layer. Each of the layers is generally frustoconical in shape.

Abstract: A compact cascade impactor is formed to classify particles carried in a flow through the impactor. The impactor has collection chambers that are arranged to conserve space and yet provide a large flow passageway. The collection chamber may be tear drop shaped and being nested together. The impactor includes nozzles that are used across a desired flow range without changing the nozzles.

Abstract: A separator for separating a first fluidized component from a second fluidized component, the separator having a monolithic body with first and second, generally vertically disposed, elongate chambers, each of the chambers having a lower end and an upper end, each of the chambers having a first outlet disposed generally at the lower end and a second outlet disposed generally at the upper end, each of the chambers having an inlet that feeds a fluid stream toward the lower end of the chamber, a fraction of the gas entering the first chamber supplying the feed stream to the second chamber.

Abstract: An air compressor system having an air/oil separator for use with an air compressor, the air/oil separator including a separator tank having a side wall with an air exit port; a separator element hold down mechanism between the separator element and a lid mounted on the separator tank; and a separator element oil scavenge device which scavenges oil from the bottom of the separator element and passes the scavenged oil through the side wall of the separator tank. A method of replacing a separation element in a separation chamber of the air/oil separator including the steps of removing the separator element from the separation chamber without disconnecting the scavenge device attached thereto, and positioning a replacement separator element within the separation chamber, such that a scavenge device securely affixed thereto is caused to communicate with the side wall of the separator tank.

Abstract: An apparatus into which particulate material may be charged for further handling generally includes a housing having a support wall including a primary inlet through which particulate material may be charged, producing portions of settling and airborne particles of such material, and at least one secondary inlet, and an outlet through which the particulate material may be discharged, a filter unit having an inlet communicating with the interior of the housing and means for producing an airflow from the primary and secondary inlets through the filter unit whereby ambient air will be caused to be drawn through the primary and secondary inlets and the filter unit, entraining airborne particles outside and within the housing which further are caused to be removed from such airflow by the filter unit, dislodged therefrom and be discharged through the housing outlet.

Abstract: A filtering, water eliminating and lubricating compressed air valve structure includes a compact air valve installed between a conventional air compressor and a pneumatic tool. A filter element is positioned inside the air inlet fitting of the compact air valve and, after a transparent condensate chamber is installed over the air inlet fitting, a washer mount and a filter ring are inserted over the bottom of a cross-shaped annular connector, at the bottom of which is a hollow neck that is in continuity with its tubular circumferential wall. A plurality of passages in the lower circumferential end of the hollow neck are disposed in continuity with a throat at the top and a threaded hole, enabling the installation of an lubricating oil reservoir on the upper half of the cross-shaped annular connector.

Abstract: A filter arrangement includes a housing having first and second stage regions of filtering. The air flows through an inlet and into a first chamber having a cross-sectional area larger than the inlet. The air expands and particles drop to the bottom of the chamber. The air then passes through the first stage filter media. Additional particles are trapped by the filter media and dropped to the bottom of the first chamber. The air then flows into a second chamber and then through a second stage filter arrangement. Additional particles are removed in the second stage filter arrangement. The air is then exhausted. One preferred application is in a shop-vacuum. Methods of cleaning air and changing out the filters are provided herein.

Abstract: An evacuation system is provided for removing smoke generated during a surgical procedure performed in a surgical room. The evacuation system includes a pre-filter assembly and a replaceable filter cartridge module disposed in the surgical room to permit replacement of used filter cartridge modules with new filter cartridge modules by personnel within the surgical room. A vacuum generator is disposed outside of the surgical room and includes a vacuum pump for establishing an air flow through the replaceable filter cartridge module. The pre-filter assembly includes an elongate flexible suction hose that is adapted for manipulation into position adjacent the medical procedure. A mechanical connection mechanism enables pre-filter assemblies to be easily replaced between each surgical procedure. An accumulated filter usage circuit calculates a quantity of filter capacity available and generates a filter loading signal based on the available capacity.

Abstract: A filtering system which essentially includes a generally cylindrical chamber with an inlet nozzle, having openings, located near the bottom of the chamber which extends into the chamber, an activator, a turbine with an axle, both the activator and turbine being located along the axle of the turbine, and an outlet nozzle located near the top of the chamber is disclosed. Air mixed with contaminants enters the chamber through the inlet nozzle via the openings and heads toward the outlet nozzle. Heavier particles fall to the bottom of the chamber. The air rotates the turbine which rotates the activator. As a result of this action, contaminants gather at the sides of the chamber and drop to the bottom of the chamber. A final separation between the contaminants and the air takes place as the air passes through the turbine where a non-penetrable air lock is created at the gap between the turbine and the lower edge of the outlet nozzle, further trapping particles.

Abstract: The present invention relates to an apparatus for separating liquids and solids from a gas stream and simultaneously coalescing liquids from the gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at an extent and an output port at an opposite extent thereof. There is a partition located within the vessel interior that divides the vessel interior into a first stage and a second stage. There is at least one opening in the partition. A separator/coalescer filter element is disposed within the vessel to sealingly extend from within the first stage through the opening into the second stage. There is a chevron-type seal or an O-ring seal between the filter element and the opening.

Abstract: An emissions control system and method are provided for controlling the particulate matter within the fiber-containing airflow discharging from a fiber processing plant, such as a cotton gin. The system includes an upstream housing defining a settling chamber therewithin which communicates with at least one conduit used to discharge a fiber-containing airflow from the fiber processing plant. The system further includes a downstream housing defining a filtering chamber therewithin which communicates with the settling chamber. A porous, bag-type filter is disposed within the filtering chamber and includes an opening in communication with the settling chamber. A forward end of the filter, which includes the inlet opening, is disposed in sealing engagement with a wall separating the settling and filtering chambers so that substantially all of the fiber-containing airflow which enters the settling chamber is forced to flow through the filter.

Abstract: An appliance for using suction to pick up liquid includes a collection container (10) with an air/liquid separator (30) arranged at a corner between two adjacent walls (13, 14) of the container and extending obliquely relative to both side walls. The separator (30) includes an inlet tube (31) which terminates in an outwardly widening outlet end portion (33) which discharges directly into the collection container (10). The inlet tube (31) and end portion (33) extend into the container (10) through an air outlet chamber (20) which is connected at an outlet opening (17) of the container (10). A filter element (40) is provided at the mouth (24) of the outlet chamber (20) and around the outlet end portion (33) of the inlet tube (31).

Abstract: A multi stage separator for separating fluid and material. The conduit has a series of tubes arranged to convey material in a fluid stream with the last tube emptying into a receptacle. Each tube is separated from the prior tube forming exhaust vents whereat at least some of the fluid from the stream is exhausted. The downstream tube at each vent has a smaller cross-sectional area as compared to the adjacent upstream tube with a cone shaped vane extending outwardly to direct the exhausting fluid. The heavier than fluid material is provided with sufficient kinetic energy by the reduced size tubes to allow the fluid to exhaust while the material flows along the longitudinal axis of the tubes.

Abstract: An air/oil separator used with a closed loop oil seal system for a liquid ring vacuum pump, which incorporates a multi-chambered design for facilitating multiple stages of oil particulate separation is disclosed. The separator includes a cylindrical multi-chambered accumulator and a cylindrical filter housing, which supports a conventional filter element. The accumulator has an outer housing and an inner housing, which defines an outer reservoir chamber and an inner reservoir chamber. The accumulator also includes an inner oil conduit extending through the inner reservoir chamber, which deposits the oil discharge into the inner reservoir chamber. A perforated inner baffle is mounted within the inner housing to partially divide the inner reservoir chamber. A second outer baffle is mounted inside the outer reservoir chamber between the outer and inner housings to partially divide the outer reservoir chamber.

Abstract: An air dehumidifying apparatus having a cyclone separator, a primary filter, a secondary filter, and a separation membrane element made of a special high polymer for passing steam smoothly and hardly passing air. The elements of the apparatus are disposed in a flow direction of air, so that the air may pass sequentially. Also, a casing is provided for forming an outer wall of the cyclone separator and accommodating the primary and secondary filter and separation membrane element. Large particles of oil, moisture, dust and other foreign matter are removed by the cyclone separator. As a result, the life of the primary filter is extended. By putting the filters and separation membrane element into one casing, the apparatus is reduced in size, and is installed easily.

Abstract: A method of separating unburned Carbon, as particulate matter, from the flyash produced as a result of the combustion process occurring in a pulverized-coal fired steam generating power plant is disclosed. More particularly the invention separates the flyash into a coarse product group and a fine product group by utilizing the differences in specific gravity between the Carbon particles and remaining flyash as well as utilization of the dynamic classification characteristics of a rotary classifier to effect the separation whereby at least one of the two product groups comprises a relatively low weight percentage of unburned Carbon while yet comprising a relatively high percentage of the total mass of product recovered after separation.

Abstract: A mist separator apparatus removes a mist and a liquid material from a chamber defined by a structure and includes a mist collecting container and a drain tube. The mist collecting container defines a plenum and has a vent and a collecting drain which are in fluid communication with the plenum. The mist collecting container is connected to the structure and is in fluid communication with the chamber for receiving the mist into the plenum. The drain tube is connected to and between the structure and the collecting drain and is in fluid communication with the chamber and the collecting drain so that the liquid material flows from the chamber and into the collecting drain.

Abstract: The present invention relates to an apparatus for separating liquids and solids from a gas stream and simultaneously coalescing liquids from the gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at an extent and an output port at an opposite extent thereof. There is a partition located within the vessel interior that divides the vessel interior into a first stage and a second stage. There is at least one opening in the partition. A separator/coalescer filter element is disposed within the vessel to sealingly extend from within the first stage through the opening into the second stage. There is a chevron-type seal or an O-ring seal between the filter element and the opening.

Abstract: The efficiency of progressing cavity pumps is drastically reduced if the liquid being pumped contains large volumes of gas. To alleviate this problem a gas separator is provided which can be attached to the suction of a downhole pump to remove gas from the liquid being pumped prior to the liquid entering the pump inlet. The separator has an elongate housing having an annular chamber with guides which direct the liquid gas mixture to flow in an annular path from the inlet to the outlet end. During this flow centrifugal forces act to displace the gas content to the central region from which it is removed via a separate central gas outlet so that liquid delivered to the pump inlet is greatly reduced in its gas content.

Abstract: A closed hollow filter canister having gas-impermeable end walls (94, 96) and a gas-permeable side wall (100). Gas contaminated with liquid is sprayed under pressure through line (90) and flow-restricting orifice (80) into the interior space of the canister where the contaminants become atomized and are retained by the side wall (100). Gas free of liquid contaminants passes into the atmosphere. In a preferred embodiment the gas is air contaminated with water, and the wall (100) is of cellulosic material which becomes wetted with water which gradually volatilizes. The filter canister may be used to treat streams (90a, 90b) from a gas compressor (50) and an associated reservoir tank (125).

Abstract: A mobile vessel which reduces the transmission of noxious fumes into the surrounding atmosphere emanating from material contained in a material chamber in the vessel, such as bituminous roofing material. An air plenum extends along the vessel beneath a filtration unit and receives noxious fumes from the material chamber and from an outside source through ducts. Ambient air is mixed with the fumes for cooling the fumes upstream from the filtration unit. A heater and stirrer are located within the material chamber for uniformly heating the material. A power operated ram and heated breaker bars move and break a solidified key of the material for subsequent discharge into the material chamber. A blower creates a negative pressure in the air plenum and filtration unit for moving the fumes and ambient cooling air therethrough.

Abstract: The device is provided with a cyclone connected to the incineration installation intended for the collection of flyash, a heat exchanger to which the cyclone is connected and intended for the reduction of the temperature of the collected flue gases and the reheating of the cleaned flue gases, a gravitation chamber with a rotating scraper and intended for slowing the speed of the incoming flue gases and the precipitation and removal of the flyash, a cooling chamber connected to the gravitation chamber and intended for the refrigeration of the incoming flue gases, where provisions are made for the removal of the condensate from the refrigerated flue gases to a water treatment installation, and an outlet for the removal of the treated and cooled flue gases.

Abstract: A pressure side integrated air filter assembly for a turbocharged engine includes an air filter carrier which is designed and arranged to receive an air filter element and which is adapted to mount to the intake manifold of the turbocharged engine. The air filter carrier which receives an air filtering element is disposed within the intake manifold and the intake manifold cover serves as the air filter cover. A peripheral flange on the air filter carrier is used to support the air filter assembly by being clamped between the intake manifold cover and the intake manifold. This peripheral flange substitutes for the intake manifold gasket. The air filter carrier and the air filter element each have a trapezoidal shape in cross section as a way to conserve space within the intake manifold.

Abstract: A solvent fume exhaust scrubber (100) for recovering organic vapor from exhaust air which is produced during the manufacture of semiconductors includes a throttling chamber (180) containing a plurality of planar baffles (112, 114, 116, 118 and 120), a planar condenser (130) and a cooling coil (138) which engages and substantially traverses the planar surface of the condenser. The throttling chamber intersects an exhaust duct (152) so that an exhaust stream (182) flows in a flow direction (184) through the chamber. Each baffle and condenser has a planar surface which is disposed at right angles to the flow direction. The surface extends partially across the exhaust stream. The baffles are arranged sequentially along the flow direction and have offsetting planar surfaces across the exhaust stream so that the baffles in combination extend across the exhaust stream. A baffle includes a baffle frame (302) for holding a plurality of carbon beads (306).

Abstract: An air filter includes an inlet for compressed air, a prefiltration chamber into which air from the inlet passes, a porous filter through which air from the prefiltration chamber passes to strain particular matter from the air, a plurality of venturis through which air from the porous filter passes, an expansion chamber in which air from the venturis expands and cools so that droplets of oil and water precipitate and accumulate at the bottom of the expansion chamber, and an outlet for air from the expansion chamber.

Abstract: A condensate trap for use in a Vapor Extraction System (VES), which uses negative pressure to extract contaminated vapors from soil, is disclosed. The trap includes a vapor tight vessel, part of which acts as a condensate reservoir. One or more mist eliminators, such as an impingement type condensate collector, are contained within the vessel. The vessel includes a vapor inlet and a vapor outlet as well as a condensate outlet. The condensate outlet is controlled by a swing check valve. The valve remains closed until there is sufficient condensate in the reservoir to push it open. After a predetermined amount of condensate drains out, the check valve closes.

Abstract: A pressurized fluidized bed combustion boiler system comprising: a boiler; a filtration apparatus with ceramics filters in a flue gas system; and a louver separator as a primary stage dust separator disposed between the boiler and the filtration apparatus.

Abstract: Apparatus for separating particulate solids from a process gas stream which includes one or more primary separation chambers, preferably ballistic separation chambers, for removing a major portion of the solids entrained in the gas stream. One or more secondary separator chambers containing multi-cyclones are employed for removing substantially all of the remaining solids from the gas discharged from the primary separator chamber. The ballistic separation chamber has an inlet portion and a larger diameter outlet portion, and it may have an arcuate shape to aid in the separation.

Abstract: Device for separating and collecting ultrafine atomized powder from the gas stream of a gas atomizing apparatus comprises a housing having an interior wall oriented at an angle relative to horizontal so as to form a downwardly converging, conical expansion chamber, an inlet conduit communicated to the expansion chamber proximate an upper region thereof for receiving the gas stream, and an outlet proximate a lower region of the expansion chamber. The inlet conduit is oriented at a compound inclined angle (with respect to horizontal) selected to promote separation and collection of powder from the gas stream in the expansion chamber. The compound angle comprises a first entrance angle that is greater than the angle of repose of the powder on the housing interior wall such that any powder accumulation in the inlet conduit tends to flow down the wall toward the outlet.

Abstract: A multi-positionable sediment trap for use with a vapor delivery pressure system. The main body of the adaptor is tubular with the opposite ends extending into end caps. A diverter tube is sealingly and fixedly mounted to one end cap, whereas an outlet control tube is sealingly and fixedly mounted to the opposite end cap. Each tube is located off center relative to the longitudinal axis of the main body forming a sediment chamber into which is directed the gas and sediment from the diverter tube with the gas then flowing from the sediment chamber to the outlet tube. A flared cone filter is mounted within the outlet tube.

Abstract: A wet/dry vacuum system for collecting fluids and particular debris is provided. The system includes a collection tank, a removable cover providing a substantially air-tight connection with the tank, and air inlet and outlet apertures. The cover includes a barrier strip integral with the internal surface of the cover. The barrier strip is designed to control the intake of debris and to prevent the system from clogging. The barrier strip is provided with air passage connections to allow proper airflow through the system when the vacuum mode is activated. The wet/dry vacuum system also includes a fluid drainage system for removing fluid from the accumulated debris.

Abstract: A high performance exhaust muffler which improves engine power and economy as well as providing a smoother engine performance. The muffler comprises an exhaust gas expansion section and a tubular baffle section closed or partially blocked at one end, its open end being attached within a smaller end of the exhaust gas expansion section to allow gas to pass directly into the exhaust gas expansion section and some to pass into the baffle section causing a weak back pressure to pulse back along the baffle tube.

Abstract: Oil separator assembly for removing and collecting oil entrained in a gas includes a vessel having a cavity with a reservoir formed therein; an inlet pipe extending into the vessel; an inlet diffuser securely attached to the inlet pipe for initially separating the entrained oil from the refrigerant gas; and independent oil and gas outlet ports extending from the vessel for emitting the separated oil and ejecting the substantially oil-free refrigerant gas, respectively. The inlet diffuser includes a conical-shaped hollow member having an open base, a closed end, and a converging side wall extending from the open base to the closed end. Refrigerant gas and entrained oil, received through the open base, gradually impacts on the inner surface of the side wall in a manner sufficient to promote coalescence of the oil. The coalesced oil is directed across the inner surface of the side wall transversely away from the refrigerant gas.

Abstract: A lint trap unit for fabric dryers, constructed for passive, slow-flow quiescent-zone precipitation of a majority of lint and other foreign particulates entrained in the exhaust of the dryer, and also providing for secondary filter recovery of possibly unprecipitrated residues at an upper filter that is provided.

Abstract: A baffle/settling chamber removes solid particulates from the exhaust of a semiconductor deposition equipment while reducing pressure fluctuation in the exhaust to provide a more uniform deposition of chemicals. A container having an inlet baffle plate, an outlet baffle plate and three settling plates disposed there between are disposed in a chamber and reside serially in the exhaust flow.

Abstract: A dust collector of the type wherein a main body of the dust collector includes one or more filter elements 11 which are permeable to air but not to airborne particles above a predetermined size, a live air zone 13 below the filter elements 11 and a main air inlet port 14; a vacuum being generated on that side of the filter elements 11 opposite the live zone 13 which thereby induces a pressure differential across the filter elements 11 whereby air and entrained particulate matter is drawn through the main air inlet port 14 into the live air zone 13 within the main body 17; the dust collector further including particulate matter guiding means 18 (in one particular form being in the form of a tubular shell) for changing the direction of movement of the entrained particulate matter in the main hopper immediately after it enters the main body from the main air inlet port 14; the particulate matter guiding means comprising a duct member 18, having at least one change in cross-sectional area therein from a smaller

Abstract: An exhaust outlet is disclosed, characterized by the presence of an intermediate expansion chamber (4) situated between a collector tube (3) and an outlet tube (5). The intermediate expansion chamber (4) comprises a first portion (6) with divergent walls and a second portion (7) with convergent walls. A discharge orifice (9) is formed in the central zone (8) of the expansion chamber. The expansion chamber (4) captures the particles brought by the gases and discharges them through the discharge orifice (9).

Abstract: A conduit for carrying fluid in a downstream direction includes a diffusing section. Downstream extending convolutions in the wall of a diffusing section energize the boundary layer and delay boundary layer separation from the wall surface of the diffusing section or permit an increase in the diffusion angle without the occurrence of separation. Such convolutions are particularly useful when rapid diffusion is required in a short distance, such as in the diffusing section of automotive catalytic converter systems. Such a system carries engine exhaust products from a small, cylindrical pipe into a typically larger elliptical cross-section catalyst filled portion. The convolutions help to more uniformly disperse the exhaust gas throughout the catalyst bed using a relatively short diffusion section.

Abstract: A method and apparatus for removing oil and water contaminants from chloro-fluoro carbon refrigerants. This system is a single pass filtration system specifically designed for sealed systems with no atmospheric bleed off of chloro-fluoro carbons. This system incorporates a novel oil absorbent and is compact enough for small commercial applications, such as service stations or portable service of environmental control units. This system also incorporates a new cartridge type filter containing both water and oil and particulate absorbtion and removal means.

Abstract: Contaminated hot gases are first cooled and then the flow is divided between a plurality of identical modules for removal or contaminants. There are two stages of treatment in each module, starting with submergence of the flow under the surface of an agitated liquid neutralizing solution in a reservoir under a pair of counter rotating separator deflectors. Above the deflectors the flow is propelled upward through a venturi restrictor chamber, then into a collector pressure chamber. This completes the first stage of treatment, the second stage being the same as the first stage. Between these first and second stages the flow is passed through an electronic air cleaner. Upon leaving the second stage of treatment the cleaned gas flow joins the flows from the other modules in a fresh air distributor.

Abstract: A method to detect, measure or remove trace amounts of condensible vapors in compressed gases. The concentration of droplets detected, measured or removed may be as low as part per trillion. The compressed gas comprising a carrier gas and condensible vapors is discharged through a critical orifice in order to condense the vapors in the form of homogeneous droplets. The droplets are either detected, or their concentration measured or removed from the expanded carrier gas.

Abstract: A thin, convoluted wall member disposed upstream of the inlet of a diffuser generates large-scale vortices having axes in the downstream direction. The vortices enhance mixing within the diffuser and can also energize the boundary layer, thereby improving diffuser performance and delaying the onset of stall. Greater diffusion angles without stall are possible. The member itself creates low losses.

Abstract: An air filtering device and related method for the removal of liquids and particulate matter from an air stream such as may be used in an aircraft environmental control system. The invention is comprised of an inertial separator and a combination coalescer and HEPA-rated filter preferably all located in the same housing. Air entering the housing flows into an inertial separator which removes most of the entrained liquid from the air. Substantially all of the remaining liquid is eliminated by the coalescing element with the coalescer functioning at least in part as an evaporator due to the low saturation level of the air flowing from the inertial separator. Biological and other particulate removal is accomplished by the subsequent passing of the air through the HEPA-rated filter medium.

Abstract: A combination solids separator and de-gasifier for a recirculating hot water system comprises a generally cylindrical vertically oriented reservoir having a wall separating the reservoir into upper and lower chambers, a central opening in the wall communicating between the upper and lower chambers, an inlet into the lower chamber tangential to an outer diameter thereof, an outlet from the upper chamber tangential to an outer diameter thereof, a float or manually controlled gas vent at the top of the reservoir for controllably venting gas from the chamber, a vortex inducing conical wall extending from the inlet toward the bottom of the reservoir, and a solids removal port at the bottom of the reservoir.

Abstract: A modular filter assembly for filtering compressed air includes a cartridge housing and a self-contained filter cartridge positionable in the housing. A manifold cap is attachable to the housing to conduct a compressed air stream between an air line and the filter cartridge in the housing. The filter cartridge includes a multistage filter and a quiet zone between filter elements therein.

Abstract: A vacuum cleaning system having a receptacle of non-porous material, such as a plastics bag (65), adapted to safely receive and hold hazardous material such as asbestos fibre. Vacuum is applied by a fan (86) to a suction chamber (69) and then through a filter (71) to an intermediate chamber (63) and via a suction pipe (61) to the bag (65). Waste material is sucked into the bag through an inlet pipe (67). The filter is cleaned periodically by admitting atmospheric air through a pulse valve (74) causing an inrush of air through the filter (71) and into the bag (65), cleaning the filter and intermediate chamber (63).

Abstract: This is an oil mist remover used in purifying polluted air containing oil mist generated in a factory or the like, which is capable of lessening the load of the filter, preventing deterioration of the filter, and maintaining a high efficiency if used for a long period, by removing large particles of oil mist and dust contained in the air inhaled from the suction hole before adsorption on the filter. It is composed of main body case, straightening box having a suction hole provided before the main body case, ventilation chamber having exhaust means behind the main body case, and drain chamber having liquid discharge means provided beneath the main body case, in which means for interrupting the straightforward move of the inhaled air is provided inside the suction hole, and the oil mist depositing on this means is dropped, and is collected in the drain chamber to be discharged.

Abstract: A muffler purifying device for combustion gases of general application including an expanded external casing having anterior and posterior end intakes equipped with nozzles, one connected to the exhaust pipe and the other for discharging gases, between which is included a unit of elements for retaining impurities and purifying the gases in the form of a cartridge which is removable from the external casing through an aperture located at the posterior end, equipped with a removable cover. The removable cartridge has a tubular wall with its own anterior end intake having an aperture defining an internal nozzle into which the exhaust pipe extends.

Abstract: Equipment takes in steam from a boiler and expands same to form water droplets. A baffle causes steam and droplets to swirl. Solubles are dissolved by droplets and insolubles separate. Both are collected by a receiver.