Abstract: Apparatus arranged in a closed system for removing particulate matter and gases from a polluted gas stream that includes a sorbent particulate charging and injection gun for electrostatically charging sorbent particles and injecting them into a polluted gas stream to charge and agglomerize pollution particulates therein, the stream flowing into a collection system housing that contains a series of moving and static bed filters and provides for operations at pressures less than atmospheric, and at temperatures up to two thousand (2000) degrees F. The filter beds are maintained across the housing and spaced apart from front to back therein, each filter containing a media material selected for removing the charged agglomerized pollution and sorbent reacted particulates and reacting with gases in the polluted gas stream, providing for removal thereof to clean that gas stream that is then vented to atmosphere.

Abstract: Rotatable circular plates are stacked apart to form thin air layers therebetween. Rotation of the circular plates moves air over an air treatment material: catalyst or adsorbent. In one embodiment, the air treatment material is affixed to the surface of the circular plates. In another embodiment, the circular plates are formed from the air treatment material. The increased velocity of air relative to the circular plates causes separation of laminar flow, promotes boundary-layer turbulence near the plate surfaces, and promotes propagating stall in the air layers. These phenomena enhance the contact between the flowing air and the air treatment material.

Abstract: A grease extractor includes a fan for forcibly flowing grease laden air to remove grease therefrom in cooperation with a membrane filter and a trap member. The grease extractor comprises a vessel with an inlet for introduction of the grease laden air and an outlet for discharging clear air removed of the grease. The membrane filter is disposed in a flow path between an inlet and an outlet of the extractor to seize the grease while passing the grease laden air therethrough. A trap member is disposed downstream of the membrane filter to deflect the air to cause collision of the grease laden air against the trap member to deposit the grease thereon. The trap member is formed with a recovery line for collecting and draining the deposit grease out of the vessel.

Abstract: A rotational separator for separating particulate material from gas includes a housing having a gas inlet and a gas outlet. A centrifuge is rotatably mounted in the housing along a rotation axis extending through the housing. The centrifuge includes a plurality a radially-spaced individual separation channels which extend parallel to each other and parallel to the rotaton axis. The separation channels extend azimuthally about the rotation axis by less than 360.degree. to prevent azimuthal flows greater than 360.degree. about the rotation axis in any of the individual separation channels.

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 filtering device for removing liquid particles from air streams of air compressors comprising a housing with an open side of which the interior is partitioned into three successive compartments, a lid which seals the housing, two filter layers which are constituted by a perforated plate and a filter sheet made of suitable filtration material, and a vane-type impeller which is rotated by the pressurized air from an air compressor to help moving the air through the filter layers. Between any two successive compartments, an air passage is formed with one of the filter layers fixed therein to remove liquid particles, such as water and oil particles. The removed liquid will be stored in reservoirs and then drained off.

Abstract: A rotational separator for separating particulate material from gas includes a housing having a gas inlet, a gas outlet, and an outlet for separated particulate material; a centrifuge mounted for rotation in the housing and including separation channels which extend parallel to a common rotation axis; and a driver for rotating the centrifuge; wherein the particulate material separated has a cross-sectional dimension from about 0.1 to about 5 um, that the separation channels are provided with singly-connected cross-sections over a substantial part of the axial separation channel length, and that the hydraulic diameter of the separation channels and the average axial gas velocity are selected in mutual dependence such that the Reynolds number is less than 2400 and the gas passes through the separation channels in a laminar flow.

Abstract: An oil mister remover used in purifying polluted air containing oil mist generated in a factory or the like, composed of a main body having a suction hole, a ventilation chamber having an exhaust provided in the main body and a member having liquid discharger provided in the main body. The ventilation chamber is formed gradually larger in diameter toward the rotating direction of the fan, the inner edge of a suction guide for guiding the air into to the fan is curved so that the diameter may be larger than the fan and a drum having a rotary filter is provided in the main body. Multiple tiny holes are formed in the drum provided in the main body, and a curvature is formed beneath these tiny holes.

Abstract: A portable aerosol dust spectrometer has an inlet section with a sampler entry having an entry efficiency for airborne dust approximately to that of the human head during inhalation, a clean-up stage to remove particles above 15 .mu.m and a main collection stage which is a cascade impactor. The cascade impactor classifies particles of dust and collects fractions onto a number of collection surfaces. A pump draws air or gas through the apparatus. The apparatus samples air in a similar way to the human body and yields fractions of dust for further study.

Abstract: A method and apparatus for separating, spreading and distributing a solid or liquid particulate material. The particulate material is pneumatically conveyed into a centrifugal chamber within a rotor (20) operatable by the flow of material for centrifugal separation of the particulate material. The terminal edge of the circumference of the centrifugal chamber serves as an overflow for establishing a buffer store and has a flow-retarding inwardly directed flange. A baffle may be provided around the terminal edge to intercept the material flung out and to conduct the material, via hopper-like flow-retarding recesses, to different outlets provided around the terminal edge.

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: In an extraction method and apparatus for extracting low biomass solid materials from a pneumatic transport line, the stream of gas having the solids entrained therein is caused to flow over a toothed extractor wheel. The toothed wheel picks out of the stream the solid materials which are then doffed from the tooth extractor wheel by the vanes of a rotating valve which seals the pressure of the pneumatic transport line from the ambient. The material doffed from the extractor wheel falls into the region between the vanes of the rotary valve and is then removed from the system as the vanes of the valve rotate. The air stream which is inducted into the extractor is first caused to pass through a diffuser which slows the velocity of the air stream and then the air stream is cause to flow along a curved duct section toward the extractor wheel causing the solid materials to flow to the outside of the curved duct section and into the extractor wheel to facilitate extraction.

Abstract: Cyclonic separator apparatus for extracting entrained lint particles from an effluent air stream prior to discharge into the atmosphere. A rotary filter is combined with a cyclonic separator of the type having a vertical settling chamber for separating relatively dense fiber product from airborne lint entrained in a product stream. The separator apparatus includes a housing forming an air stream inlet, a lint discharge outlet and a clean air outlet. A rotatable screen is interposed between the air stream inlet and the clean air outlet whereby the entrained lint is accumulated on the screen as the effluent air stream flows through the screen for discharge into the atmosphere. The accumulated lint deposit is presented to the lint discharge outlet as the screen turns. A first fan blower is coupled to the separator for inducing an upwardly moving inner vortex for entraining the airborne lint, and coupled to the filter inlet for discharging the entrained lint onto the rotatable screen.

Abstract: A centrifugal separator cleans a stream of fluid by passing the same through a rapidly rotating tapered duct. Rotation of the duct creates centrifugal force which causes pollutants carried by the stream to collect on a duct wall and to flow along the wall in a direction opposite to the direction of flow of the fluid through the duct.

Abstract: An air cleaning device for use in connection with clean air usage such as with internal combustion engines or to provide cleaned air for ventilation purposes, the air cleaner device comprising a directional hood having a substantially unrestricted air intake and a short throat directional separation chamber into which incoming air is drawn and in which incoming contaminants and moisture are centrifuged by a multiplicity of directional vanes onto and along an adjacent baffle member leading to an annular discharge chamber through which a driven spinner assembly ejects contaminants and moisture through rearward facing ports and creating a relatively low to high pressure gradient into and through the discharge chamber with the pressure gradient increasing to accelerate the movement of the contaminants and moisture through the discharge chamber and through the discharge ports with the pressure of ejection being greater than the external ambient air pressure.

Abstract: An imperforate duct has fluid-inlet and fluid-outlet openings at opposite ends thereof, between which is located a rotor that performs both a ventilating function and a filtering function by way of imperforate, rough surfaces which are adapted to retain solid and liquid particles contained in air or other gas that is being filtered, the rotor being followed by a gas-treating filter through which the fluid passes before emerging from the hood. An aerodynamic block against backflow is located between the inlet opening and the rotor, but not in contact with the rotor.

Abstract: A high pressure gas/oil separator comprising a pressure vessel with a magnetically driven hollow shaft extending thereinto. The shaft has a slinger at its lower end within the vessel. The upper end of the shaft is in communication with a source of the gas/oil mixture. The vessel has a purified gas outlet above the slinger. Gas/oil mixture is thrown by centrifugal force against walls of the vessel and the oil coalesces on the walls and drains to the bottom of the vessel. The purified gas escapes from the vessel through the outlet port.

Abstract: A contact compartment for intermixing dust or fume laden gases with solid substances, in a turbulent or fluidized layer, the gases being the turbulence carrier, and the solid substances being the turbulence material. The intermixing action induces the noxious components of the dust or fume laden gases to absorptively react or combine with the solid substances and form absorption compounds. In order to prevent the conventional formation of inhomogeneous sections in the turbulent or fluidized layer, during the intermixing action, the turbulence material and turbulence carrier, present in the compartment, flow transversely through at least one revolving drum having a perforated peripheral wall and equipped with a charge of filled-in regular or irregular-shaped bodies.

Abstract: An apparatus for separating solid impurities from a fluid, such as air, comprising a housing, a set of filter elements fixed on a set of perforated sleeves, a fan with a driving electric motor, a louvered cyclone positioned around the filter elements, a centrifugal coupling designed to automatically connect the set of perforated sleeves with the shaft of the electric motor, and a receptacle for impurities separated from the air by the apparatus.

Abstract: An arrangement for separating paint residuals and solvents from the exhaust air of a paint spray chamber comprises a device for blowing a stream of supply air through the spray chamber to take along exhaust air containing paint and solvent particles, a filtering conveyor located below the chamber for intercepting from the exhaust air paint particles and discharging continuously the same, and a second conveyor arranged below the filtering conveyor and adapted for receiving and discharging a layer of adsorptive material that intercepts solvent particles remaining in the filtered exhaust air.

Abstract: A filtering separator, in particular a pocket or tube filter, of the kind in which smoke-laden gas containing dust particles of particularly great adhesiveness is fed into a dust collecting trough of a filter housing at the bottom and upwards towards filter elements and in which the filter elements are cleaned periodically by counter-current scavenging and/or joggling. A proportion of the settling dust agglomerated in the filter which corresponds to the amount of dust in the incoming smoke laden gas and which cannot be carried back to the filter surfaces by the smoke-laden gas is removed from said dust collecting trough.A lower part of the dust collecting trough is occupied by a longitudinally extending, rotatably mounted, perforated or sieve-like drum which is arranged to be filled with heavy bodies such as balls. The upper part of the drum is exposed and acts as a dust-collecting store or reservoir to which the smoke-laden gas is fed in order to flow transversely through the drum and its contents.

Abstract: A filter box contains within a rotatably mounted filter, structured as a drum, a fiber preseparator cooperating with such filter. The fiber preseparator has a ventilator at its inlet and operatively flow communicates with a fiber separator. This fiber separator contains a movable plunger or equivalent structure, by means of which the separated fibers are compacted and ejected into a collecting container. The air flowing through the filter effluxes through an opening in the filter box into the machine room or area containing the textile machines with which the filter box is used. The air responsible for transport of the fibers from the preseparator into the fiber separator, following separation from the fibers, is returned back to the suction side of the ventilator and again into the preseparator. A suction tube cooperates with the inner side or wall of the rotating filter drum. This suction tube likewise flow communicates with the suction side of the ventilator by means of a dust separator.

Abstract: A gas separation apparatus is provided for removing moistened particles from a stream of air by subjecting the moistened particle laden air stream to centrifugal force to separate the moistened particles from the air stream and thence separating the water from the particles and finally causing the air stream to pass to an outlet through a mechanical separator assembly to remove any particles still remaining therein.

Abstract: An apparatus for removing oil mist includes a cylindrical main body having an air inlet at one end and an air outlet at the other side thereof. A cylindrical rotatable filter having one end open to the air inlet and a centrifugal fan disposed concentrically within the filter and rotatable therewith are positioned within the main body. An oil adsorbent layer is provided on the inner surface of the main body surrounding the filter. The air taken in through the air inlet is passed through the filter into the air outlet causing air-borne oil mist to adhere to the filter. That oil mist which coalesces on the filter is centrifugally forced outward, is adsorbed by the oil adsorbent layer, and thereafter travels through the oil absorbent layer for discharge through an oil drain channel.

Abstract: An apparatus for the separation of particles from a gas of the type which has filter elements disposed around a drum located in the center of a housing with a shutter mechanism. The improvement of the present invention also relates to an apparatus which allows separation and emptying of filter elements by the shutter mechanism and particle separation without venting of particles to the atmosphere. The apparatus is particularly useful for instance, for asphalt mixing plants, stone quarry or foundry dust separation and collection.

Abstract: A self-cleaning filter and vortexer is provided in which a filter rotates over the clean fluid outlet port of a vortexer cannister in the direction of the flow of fluid into the tangential inlet port of the vortexer. The peripheral velocity of a freely rotating filter will approximate the flow velocity of the fluid into the tangential inlet port to enhance the centrifugal acceleration effect of the vortexer and the dynamic cleaning of the filter medium. This acceleration enhances centrifugal separation of the heavier particulates in the vortexer and enhances the dynamic cleaning of the fines and other particulates from the filter medium. The drive mechanism for rotating the filter may be designed to be uneven so as to shake the filter medium as it rotates. The flow of fluid will pass thru the filter medium and be exhausted as a cleaned fluid into the outlet port of the vortexer cannister.

Abstract: A carrier frame supports a renewable filter cartridge for rotation within a filter housing that includes an annular side wall with an air inlet and a bottom wall having an air discharge opening communicating with a carburetor for an internal combustion engine. A pedestal supports the carrier frame via an anti-friction bearing within the filter housing. The pedestal has diammetrically-opposed annular wall segments that close the airflow space between two adjacent arcuately-shaped impellers that join together upper and bottom cover plates forming part of the carrier frame. The upper cover plate has an outer diameter that corresponds to the annular opening in the renewable filter cartridge while the bottom cover plate has an outer diameter that is approximately equal to the outside diameter of the renewable filter cartridge for support thereof. The bottom cover plate additionally supports vertically-extending fins located at the outer peripheral surface of the filter cartridge.