Abstract: A separation chamber comprising a solid walled container vessel having a removably sealable top which contains an inlet port, the chamber having an inner perforated screen wall with an outlet port positioned in the side of the vessel extending into the interior of the perforated screen inner wall, a static vacuum line communicating with the outlet line and the annular space between the solid outer container wall and the inner perforated screen wall, and a self-contained disposal bag having an inlet sleeve and an outlet sleeve, said bag design to conform to the contours of the inner perforated screen wall and said inlet sleeve for extending through the inlet port and the outlet sleeve for extending outwardly through said outlet port, both sleeves having a means for securing the sleeves in a closed and secure position once the disposal bag has become filled with particulate matter, the bag, complying with disposal requirements, then being deposited in an appropriate disposal area.

Abstract: A filter assembly for use in combination with a toilet tissue dispenser includes a housing in which a roll of toilet tissue is mounted. A motor driven blower is positioned in the housing and serves to remove dust and loose fibers by directing a flow of air over the tissue roll. A removable filter captures the loose dust and fibers. Additionally, perfume granules or the like may be retained in the housing so as to provide the clean exhaust air with a pleasant odor.

Abstract: The invention relates to a method and an arrangement for cleansing a flow of hot contaminated gas (1), in which the contaminants comprise both dust particles and gaseous condensable contaminants. The gas is cooled in a heat exchanger in a first stage (2) to a temperature which lies above the temperature at which the gaseous contaminants begin to pass into their respective liquid phases. The gas is then cooled further, in a second stage (4), by mixing the gas with a colder gas flow (5), so as to bring the temperature of the gas to a level suitable for subsequent extraction of contaminants in a first dust separator (3, 3a), while condensing part of the gaseous contaminants present. Condensed contaminants are bound by adsorption and/or absorption to dust particles collected in the first dust separator (3, 3a).

Abstract: A U-loop air handling apparatus adapted to receive air from a surrounding environment for conditioning and channeling thereof to return ducts. The conditioning includes cooling and filtration thereof such as to be specifically usable in high technology areas requiring extremely clean working conditions. The apparatus includes a fan operatively positioned between an intake section and an output section. The intake section includes a reducing section for receiving air and passing this air through a pre-filter and a cooling coil. Condensation is removed at the cooling coil and a cross sectional area of the channel of air travel is narrowed to a smaller diameter by the reducing section. A fan box receives the conditioned air from the reducing section where it is carried through an inlet box and bell member into the fan. The fan powers the air outwardly into an acoustical box which channels the air parallel and in an opposite direction with respect to the direction of movement of the air within the intake section.

Abstract: An air cleaner has a casing having an air inlet and an air outlet with an air filter therebetween. A sump with a drain hole is formed in the casing between the filter and outlet. A valve opens the drain hole to drain the sump in response to the collection of a predetermined amount of liquid thereabove in the sump collected from air passing from the filter to the outlet. And an air filter filters any air passing through the drain hole from outside the casing should the valve open while air is passing from the normal inlet to the outlet.

Abstract: Vacuum loading apparatus is provided for ingesting a mixture of debris (such as particulate matter) and ambient air, for collecting the debris for disposal, and for filtering the ingested air before discharging it to atmosphere. The apparatus comprises three relatively light-weight, portable, independently movable modules, each incorporating a weeled chassis, to facilitate their movement to, from and on the jobsite, whereat they are interconnected for use by large flexible hoses. The power module comprises a motor-driven vacuum blower. The debris-receiver module comprises a receiver tank with a removable disposable debris-collection bag therein (which bag may or may not have an associated filter) and a debris-collection vacuum hose connected to the exterior thereof. The upper and lower ends of the receiver tank and the inside and outside of the bag are exposed to the same negative air pressure in the tank to prevent its collapse or damage by a pressure equalization duct.

Abstract: A portable dust collector which includes a housing having a dust-proof chamber, a motor and blower enclosed within the chamber, a centrifugal blower driven by the motor and exhausting through a diffuser into the housing, a filter bag enclosing the top of the housing, a collection bag enclosing the bottom of the housing, and a support extending downwardly from the housing to the base for providing clearance below the housing sufficient for the collection bag. By positioning the motor within a dust-proof chamber inside the housing, the dust collector has better balance and portability and requires less floor and storage space than prior art collectors with exterior motors. The collector also includes a diffuser which is attached to the blower outlet and is shaped to direct the effluent from the blower downwardly into the collection bag.

Abstract: An air dryer (2) for an air brake system of a truck or the like includes separate heat exchanger and filtering housing sections (16 and 18) mounted side-by-side in a compact integral housing unit (10). The heat exchanger cools the air to condense water therefrom, and a water repellant downstream filter (42) permits air flow therethrough but blocks the passage of water. A pressure responsive valve (82) communicates with the outlet of the heat exchanger and the inlet of the filter for discharging water condensed from the heat exchanger and repelled by the filter.

Abstract: The invention solves a method and an apparatus for the separation of solids from gaseous mixtures especially the separation of phthalic anhydride after its desublimation from mixtures with vapours of sublimable substances, steam, air or inert gases, which originate at sublimation refining or at catalytic production of phthalic anhydride by air oxidation of naphthalene or o-xylene.The flakes of phthalic anhydride, which originated after the decrease of temperature in the desublimator space were agglomerated and compacted due to the increase of velocity of gaseous mixture in contracted cross-section of the separator. The formed agglomerates are separated from the gaseous mixture and collected in a receiver well. From the well the agglomerates are transported by a conveyor or they are continuously melted. The melt formed outlets through a siphon. The rest 1 to 5% of phthalic anhydride is separated from gaseous mixture in a filter from wire net and by gradual melting is introduced into the receiver well.

Abstract: A vacuum air flow operated cyclone separator arrangement for collecting, handling and packaging loose contaminated material in accordance with acceptable radiological and criticality control requirements. The vacuum air flow system includes a specially designed fail-safe prefilter installed upstream of the vacuum air flow power supply. The fail-safe prefilter provides in-cell vacuum system flow visualization and automatically reduces or shuts off the vacuum air flow in the event of an upstream prefilter failure. The system is effective for collecting and handling highly contaminated radiological waste in the form of dust, dirt, fuel element fines, metal chips and similar loose material in accordance with radiological and criticality control requirements for disposal by means of shipment and burial.

Abstract: A flour recycling system includes a compressed air and vacuum head placed over a bakery product conveyor line. Flour is removed from the product units and is conveyed through a vacuum hose to the inlet of a remotely located dual stage separator in which the flour with entrained dough particles is subjected to a two-stage vacuum induced centrifugal separating process. Cleansed flour is drawn by vacuum through two fine mesh sifter screens into two reclaimed flour tanks each containing a vortex eliminator and each having an air release bag. Reclaimed flour is delivered to storage receptacles beneath the tanks through elongated flexible chutes which can be tied off and closed at desired elevations. The tanks, their air release bags and flexible chutes can be individually vacuum cleaned without shutting down the system merely by stopping the operation of one blower while continuing to operate the other blower of the dual blower system, one for each tank.

Abstract: A method and apparatus for the heat treatment of fine-grained material wherein the degree of efficiency of the last cyclone of a multi-cyclone preheater preceding a filter is reduced in the finest grain size range and at least a proportion of the filter dust deposited in the filter is passed directly to the calciner. In this way material is prevented from caking and flowing in batches in the apparatus.

Abstract: Methods of and apparatus for removing contaminants from heated gases by impact separation. The contaminants are collected by adhering them to a moving surface, and they are thereafter removed from that surface.

Abstract: A particle precipitator in the form of a cylindrical tank accepts raw water through a tangentially and horizontally mounted pipe. The precipitator is divided into three separate chambers, a lower, middle, and upper chamber separated by two baffles. The raw water enters and circulates into the lower chamber and because the lower chamber is of much larger volume than the inlet pipe, the velocity of the raw water is substantially reduced. During the raw water's residence time in the lower chamber, many of the larger particles are permitted to precipitate out to the bottom of the precipitator tank. The water then flows through a center opening of the lower baffle to the middle chamber and around the outer edges of the upper baffle to the upper chamber. By the time the water reaches the upper chamber, most of the larger particles have had a chance to precipitate out and the water in this upper chamber is substantially cleaner than it was when it entered the precipitator tank.

Abstract: An improved low pressure filtration apparatus for the collection and removal of particulate matter form an air stream which includes particulate matter wherein the apparatus includes sequentially, an intake hose for the introduction of the air stream including said particulate matter into the apparatus, a first enclosed collection chamber having an intake apparatus for connection to said intake hose and a removably secured outlet apparatus for removal of a portion of said particulate matter collected in said first collection chamber and an exit apparatus from the first collection chamber for the air stream and a portion of the particulate matter, a second enclosed collection chamber having an intake apparatus for introducing the air stream and a portion of the particulate matter from the first collection chamber, an exit apparatus for the air stream and a portion of the particulate matter from the second enclosed collection chamber, a plurality of vertically disposed filter bags disposed between the intake an

Abstract: Compact gas-liquid separator comprising a cylindrical separation chamber including an inlet head and a degasifying vessel. The inlet head comprises an inlet tube supporting a nozzle positioned adjacent to the inner wall of a cover situated within the axis of the separation chamber. The cover includes a cylindrical portion closed by a convex cap and extends toward the bottom by a skirt closing the degasifying vessel and having openings. Within the axis of the nozzle the cylindrical portion has an opening of a diameter greater than that of the nozzle and is spaced from the nozzle. The cover includes a deflector having a central opening and being inclined with respect to the axis of the cylindrical portion of the cover and disposed within the axis of the nozzle. An outlet tube for the gas is positioned in the inlet head.

Abstract: An air cleaner assembly is provided for supercharged engines including a supercharger compressor, comprising a vortex air cleaner upstream of the supercharger compressor, and a rotatable barrier filter cartridge that is self-cleaning downstream of the supercharger compressor.

Abstract: An apparatus for the removal of particulates from a flowing gas stream and a process for its use are provided. A perforated screen separator formed as a plate having parallel rows of perforations formed by pushing alternating strips of the plate material forward and backward from the plane of the plate is used. The perforated screen separator may be used alone or with a fiber bed mist eliminator for increased particulate removal.

Abstract: This invention relates to a device at a dust filter for cleaning a gas flow from dust. The dust filter consists of an electrostatic precipitator or fabric filter (bag filter) and comprises a filter chamber (10) with gas inlet (12) and gas outlet (13). At the gas inlet a precollector (30) in the form of a louvre collector (31) is located for separating coarse dust, i.e. dust with a diameter exceeding 50-75 microns. In the order to obtain good collection at the louvre collector (31), the collected dust is evacuated by means of a partial gas flow, which is passed to a dust hopper (34) and a dust discharge unit (35). According to the invention, the dust discharge unit (35) comprises a cyclone collector (36), the inlet portion (37) of which is integrated with the dust hopper (34), and the outlet portion of which or central pipe (38) is formed with a passageway (39), the mouth (40) of which is located in the filter chamber downstream the louvre collector.

Abstract: An improved apparatus for extracting a side-stream flow of fine-particulate-laden effluent gases from a mechanical separator employs the use of a plenum inside the housing of the separator with a plurality of pickup openings communicating the plenum with spaces among and about the separator's collector tubes. A side-stream flow of fine-particulate-laden effluent gases is extracted from regions among and about the collector tubes by drawing these gases through the pickup openings and into the plenum, from the plenum into a ductwork communicating with the plenum, and from the ductwork through a separator where particulate matter is filtered from the side-stream flow. The method of constructing the apparatus is also disclosed.

Abstract: A vacuum material transporting system and more particularly, a vacuum material transporting system having an improved dust collecting means for collecting lightweight fines which are carried over from the main material stream.

Abstract: A continuously cleaned bag filter provides a second filter stage for removing dust from air discharged from a cyclone or other primary separator. The primary separator removes the majority of particulate matter from air delivered thereto. In the bag filter dust is filtered from the air, which is discharged through the filter walls. The filtered dust is conveyed along the bottom of the bag filter by an air conveyor and is recirculated back to the primary separator for removal thereat. The air conveyor and a recirculating air blower, the latter providing impetus to carry dust back to the primary separator, are balanced relative to the inflowing air to the bag filter from the primary separator; such balance prevents excessive back-pressure or negative pressure in the filter bags that would otherwise interfere with ordinary air discharge therefrom.

Abstract: A cyclone dust separator for the separation of coarse, small and very fine particles of dust from a dust-laden current of exhaust air or exhaust gas, which is conveyed eccentrically from above, and via a dust pipe, from a fan to a separating vessel is provided. The separated particles of dust are intercepted in a collector mounted underneath the separating vessel, a pipe conduit being inserted centrally from above into the separating vessel in order to lead off the current of pure air or pure gas, while a round upper part, in which the dust pipe terminates eccentrically, is mounted on the separating vessel. In the upper part the mixture of dust and air is subdivided into two separate currents taking an approximately circular coarse. This enables coarse, fine and very fine dust to be separated in an optimum manner even when considerable quantities of dust-laden air have to pass through the apparatus.

Abstract: In rock drilling, the dust-laden flushing air from the borehole is drawn through a coarse dust separator and a filter unit. A mixing apparatus is screwed to the bottom of the filter unit and in accordance with this invention the dust that falls from the filter unit is fed in batches to a mixing chamber of the mixing apparatus in which it is mixed with a liquid binder. The dust from the coarse dust separator is directly dumped on the ground and the fine dust from the mixing apparatus is also dumped on the ground.

Abstract: A gas filtration apparatus and process is disclosed combining heating to maintain undesired material in the form of liquid droplets, sonic agglomeration and porous cross flow filtration. The apparatus and process are particularly suited to gas streams comprising particulates and/or liquid droplets of under 10 microns in diameter, such as the effluent gas stream of coal gasifiers, which are at a high temperature and high pressure. Liquid droplets in the gas stream are agglomerated by sonic agglomeration, and a portion of the gas stream is then passed through a porous cross flow filter element for separation of the agglomerates resulting in a clean gas stream by a continuous, low pressure drop and self-cleaning filtration process. The gas stream may be seeded to enhance agglomeration and/or to induce chemical reaction of undesired gaseous components for their removal as liquids.

Abstract: Disclosed herein is a disposable lightweight filter assembly which has a high flow through capacity and which is adapted to be positioned in a relatively small inaccessible space. The assembly includes a cylindrical housing having an air outlet at one end, a plurality of air inlet apertures in the side wall thereof, an offset pleated hollow cone-shaped filter element positioned within the housing and a reuseable air inlet bonnet adapted to be releasably secured to the housing about the air inlet apertures therein for securement of the filter assembly to a hump hose or other air flow coupling. Additionally, the bonnet can include a tubular moisture separator entending from the upstream end thereof.

Abstract: A hot raw gas stream, as produced by the partial oxidation of a solid carbonaceous fuel such as coal, is partially cooled and cleaned to remove entrained solid matter and slag. A novel gas--gas quench cooling and solids separation apparatus is employed. The apparatus comprises a closed cylindrical insulated vertical pressure vessel containing a lower quench chamber in communication with an upper solids separation chamber. The hot raw gas stream is cooled in the lower chamber to a temperature below the initial deformation temperature of the entrained slag by impingement and direct heat exchange with an oppositely directed coaxial stream of cooled, cleaned, and compressed recycle quench gas. The stream of cooled gas leaving the turbulent lower chamber passes up through a choke-ring into the comparatively calmer upper chamber counter-currently with solid slag droplets which separate out by gravity.

Abstract: A gas filtration apparatus and process combining sonic agglomeration with porous cross flow filtration. The apparatus and process is particularly suited to gas streams comprising particulates of under 10 microns in diameter, such as the effluent gas stream of coal gasifiers, which are at a high temperature and high pressure. The smaller particles are agglomerated by sonic agglomeration and a portion of the gas stream is then passed through a porous cross flow filter resulting in a particulate-free gas stream while not requiring the high pressure drop normally associated with filtration of small particulates. The gas stream through the sonic agglomeration portion may be seeded to enhance particulate agglomeration and/or to induce chemical reaction of undesired gaseous components for their removal as solids.

Abstract: Device for controlling the particulate emission from coal-fired boilers including a cyclone type primary separator between the boiler and the stack and a bag filter coupled in side stream relation to the cyclone separator such as to shunt and departiculatize up to about 20% of the gas stream entering the cyclone. The shunted gas is drawn from below the tube sheet of the cyclone separator, filtered through the bags and returned to the stack. Means are provided to control the temperature of the shunted gas within defined limits corresponding to the acid dew point of the gas and the thermal degradation temperature of the filter media.

Abstract: An apparatus in which air in a room such as sickroom, aseptic working room etc. is fed to an water-spraying cyclone to remove dusts and microbes and make air humid, and fed the resulting air to a temperature-regulating cyclone to remove water droplets and regulate a temperature as required, and then fed thus obtained temperature-regulated air to said room for circulation of the air through this system.Using this microbe-removing and air-conditioning apparatus, it is possible to obtain an air of desired temperature and humidity, and at the same time supply an air from which microbes have been completely removed and which is most appropriate for sickroom, operating room etc.

Abstract: A device for separating a high pressure polyphase mixture consisting of a gas charged with liquid particles, and particularly a mixture of ethylene and polyethylene, which comprises a cylindrical vertical enclosure into which extends an inlet means for supplying the mixture thereto and which is provided at its lower end with an outlet for discharging separated liquids; a vertical cyclone in communication with the enclosure for receiving separated gases therefrom and having an outlet at its upper end for discharging gases separated in the cyclone and a liquid outlet at its lower end for discharging separated liquids therefrom; and an ejector comprising a nozzle, through which the polyphase mixture is fed, a mixing zone connected to the liquid outlet of the cyclone and a diffuser section for reducing the speed of the resultant mixture and being connected to the inlet means for supplying the polyphase mixture to the enclosure.

Abstract: A compound particle separator, e.g. for removing dust particles from flue gases comprises a horizontal flow electrostatic precipitator whose inlet side is provided with a centrifugal separator assembly comprising a plurality of centrifugal separator cells with at least the gas outlets of the cells lying above the electrostatic precipitator as to the row of such cells closest to the latter. This arrangement improves the distribution of gas to the electrostatic precipitator.

Abstract: The invention relates to a tubular filter element for use in an ultra filtration plant. The element is in the form of a tube of woven fabric which is napped on its internal surface. A cellulose filter aid is deposited, on the nap and the resulting filter element has a high collection efficiency and low filter drag making it particularly suitable for use in an air recirculation plant. The air is drawn from a working area and passed through a conventional primary collection unit and then through an ultra filtration unit containing an array of the filter elements. It is then sufficiently clean to be passed back to the working area, preferably through a HEPA filter, and this results in a substantial saving in heat energy which would otherwise be wasted.

Abstract: An air prefilter is disclosed for use with internal combustion engine air filters of the type having replaceable filter elements. The prefilter has a perforated sleeve connected between the usual intake openings and the filter element of the conventional air filter. This perforated sleeve is enveloped by an open-pore foam filter medium, which is of such porosity that engine intake air primarily passes therethrough rather than through the intake openings of the conventional air filter. The prefilter prevents foreign matter and water vapor from reaching and blocking the conventional filter element, which blocking causes the engine to receive insufficient air for efficient combustion. When the prefilter medium is saturated or blocked with impurities, the conventional air filter operates as usual, until the prefilter medium is cleaned or replaced. An adjustable deflector helps prevent foreign matter from blocking the prefilter medium.

Abstract: A method is disclosed for recycling industrial air. Air contaminated by particulates is removed from the area of machinery, transported to dust collectors, and filtered. A small portion of the filtered air is discharged to the outside atmosphere while a substantial portion is recycled to the area of the machinery. Significant savings of energy are realized while less particulates are exhausted with the air into the atmosphere as contaminants.

Abstract: An air cleaning system for an internal combustion engine includes an air cleaner inlet duct projecting through the engine compartment hood and coupled to a precleaner having a contaminant collecting bowl located above the hood. An extractor tube has one end coupled to the bowl and extends downwardly within the duct from the bowl to a location below the hood where it exits the duct and extends beneath the hood and is coupled to an aspirator incorporated in an exhaust conduit forming part of an exhaust muffler projecting upwardly through the hood.

Abstract: An exhaust gas treating device for injection molding machines, in which a vent port of a vented injection machine is connected to a vacuum and an exhaust gas treating mechanism for treating the gas discharged from the vent port characterized in that a mist separator, the vacuum pump, an air-water separator and a deodorizing unit are disposed in the above-mentioned order from the vent port side and in communication with the vent port.

Abstract: The apparatus according to the invention comprises a casing. The casing consists of two chambers: an inlet chamber and a filtering chamber each having a conical receptacle for collecting solid chlorides. The inlet chamber and the filtering chamber are provided each with guide webs and are separated from each other by a partition wall comprising a gas duct. The gas duct establishes a communication between the lower portions of the chambers in such a manner that the inlet end of the gas duct is arranged under the guide webs of the inlet chamber and the outlet end is arranged under the guide webs of the filtering chamber. The filtering chamber has inlet pipes for admission of pulp. A pipe for admission of a chloride pulp is arranged above the guide webs at a distance of from one to two times the diameter of the filtering chamber. The pipes for an oxychloride pulp is arranged below the guide webs which are permanently covered with a filtering material.

Abstract: Compact pollution control and/or dust removal apparatus is provided for removing entrained dust particles and/or other dry pollutants from an air or gas flow. The apparatus provides for a single pollutant particle discharge in a first or initial removal housing with a plurality of secondary removal housings mounted in spaced fashion circumferentially around the initial removal housing. The construction is such that the gas flow being treated is subjected to two reverse flow patterns for particle removal. Collected pollutants may be flushed from the secondary removal housings by a counter-current flushing action and the use of a simplified valving arrangement wherein the collected pollutants are accumulated into a single area for discharge. The compact arrangement eliminates long horizontal flow pipes which have a tendency to clog with accumulated particles.

Abstract: An air cleaner especially for use on small single cylinder internal combustion engines has a substantially annular air filter element of the dry paper type, removably mounted in a housing to divide the same into inner and outer compartments, the latter having an outlet for cleaned air that is connectable with the air intake port of the engine carburetor. An inlet passage for air to be cleaned which leads to the inner compartment, is so constructed that air flowing therethrough must undergo an abrupt change in direction in order to reach the inner compartment, and has an outlet so located that solid contaminants entrained in the air flowing to the inner compartment, by virtue of the tendency thereof to continue moving in the direction they were, leave the inlet passage through that outlet and hence are separated from the air before it enters the inner compartment.

Abstract: Pollution control apparatus and a method for removing particulate matter from a gas at temperatures of up to about 3000.degree. F. are disclosed comprising a gas centrifuge having effluent and influent openings and a spray nozzle positioned to inject a stream of a refrigerated fluid at the effluent gas passing through the centrifuge. The spray nozzle is arranged to force particulate matter against the walls of the gas centrifuge in order to facilitate removal of particles in the gas stream and also to cool the gas to a low temperature after which it may be either discharged into the atmosphere or processed through a moving filter at low temperatures to further remove any finer particles in the gas passing through the apparatus. The lower temperatures of the gas emanating from the gas centrifuge allow the use of a cloth or synthetic fiber filter such as a Dacron (trademark) filter.

Abstract: An industrial loader vehicle, handling both wet and dry materials, has a single engine driving the vehicle to a pick-up site, powering all of the components to load the vehicle at the site, driving the vehicle to an unloading site and dumping the materials as desired at the unloading site. A powerful blower develops a high velocity air stream through a pick-up inlet conduit and a collector chamber tiltable on the vehicle for easy dumping of the collected material. A swingable and tiltable boom mounted on top of the collector presents the conduit for easy access to material located around and above the vehicle. The high velocity air stream sweeps the material through the conduit into the top of the collector chamber where it drops to the bottom of the chamber. The blower and surrounding environment are protected from materials entrained in the air stream by bag filters and cyclone separators mounted on the front end of the collector to tilt therewith.

Abstract: A compact, portable multi-stage vacuum particle separator with a first stage centrifugal separator, second stage linear separator concentrically mounted in the first stage, and a third stage air filter. All three separator stages deliver their separated particulate material into a common dump hopper. The second and third stages have flexible flap valves at their bottoms to automatically transfer accumulated, separated particles into the dump hopper when the unit is shut down.

Abstract: In a fluid passageway a filter panel is selectively moved out of its normal position extending across the fluid passageway to a dumping position out of the fluid passageway such that particulate matter collected thereon is removed responsive to the movement of a baffle plate from a normal position out of the fluid passageway into a position blocking the fluid passageway. Thereby passage of air through the fluid passageway is prevented during the time the filter panel is out of its normal position. In a preferred embodiment a linking mechanism connects the baffle plate and filter panel together so that movement of the baffle plate to the blocking position causes the filter panel to drop to a dumping position and return of the filter panel to its filter position causes the baffle plate to drop to its normal position. The whole sequence is instituted responsive to buildup of particulate matter on the filter panel.

Abstract: An air introduction assembly for a vehicle engine located with respect to a roof mounted air deflecting member to perform an air cleaning or contaminant separating function. The air inlet is placed in a plane substantially parallel to the surface of the deflector over which air flows during vehicle movement and opens normally to the direction of the air flow. Air passing thereover which enters the inlet must be diverted in an arcuate path which causes contaminant particles to pass the inlet. The air inlet is partially defined by a forward peripheral edge portion offset outward from the surface of the air deflector so that a moving contaminant-laden layer of air immediately adjacent the deflector surface is excluded from entering into the inlet. Leading from the inlet is an air passage which tangentially introduces the air entering the inlet into a cylindrical separator chamber.

Abstract: An air filtering installation for an internal combustion engine equipped with a supercharger and a supercharger inter-cooler, in which the air filtering installation includes a centrifugal dust separator and a dry air filter with interchangeable filter insert; the centrifugal dust separator is thereby arranged on the suction side of the supercharger and the dry air filter is arranged downstream of the supercharger inter-cooler.

Abstract: The invention presented herein is a suction device for removing particles from the cutting area of a cutting tool via a duct arrangement including a large particle separator, a blower, a cyclone separator, a bypass means whereby a portion of the outlet air of the cyclone separator is used as a medium to transport particles separated by said cyclone separator and the remaining air outlet of said cyclone separator is recirculated to the cutting tool in the area of the vacuum pickup means.

Abstract: An apparatus for neutralizing and purifying air comprises an air filter, a preliminary drier, two alternately operable driers, a turbine for moving the air, a cooling unit, a heating unit, a moistening unit, at least one conditioner, and connecting means for outputting the treated air. The cooling unit lowers the temperature of the air, and comprises a separator for liquids and a separator for solids. The heating unit brings the temperature of the air back up to between 250.degree. and 450.degree. C.

Abstract: An enclosed portable container for gravel and dust in a vacuum cleaning system, provided with at least two cyclone air cleaners, having a clean out door, and each cyclone is provided with its own clean out door, is skid mounted for pick up and carry to dumping areas, reducing the handling of collected dirt, gravel and dust. The separate air pump assembly provides motivating power for the vacuum cleaning system.

Abstract: Apparatus for processing domestic and industrial trash and garbage to recover the components that have fuel values by moving the trash and garbage through a fluid bed where it is shredded to a desired size while in the fluid bed, and subsequently causing it to flow in an air lift at a low velocity so that the recoverable light weight components can be separated from the heavy components and collected through a cyclone separator, the heavy components being carried off by suitable conveyor means. The apparatus embodies a system of air moving means and conduits with control valves so that the fluid bed separator is operated at a negative pressure to assure a dust free environment for the apparatus and obtain an even distribution of the shredded material in a moving air stream at a low velocity so the material will separate on the difference in specific gravity, assisted by air elutriation.