Abstract: A vacuum receiver for separating particles entrained in a gas-particle stream and for allowing a gas stream to exit from the vacuum receiver to an exhaust blower while simultaneously allowing the particles to remain in a particle receiving vessel having an open top. A cover is provided which has a top wall with a perimeter thereof resting on a surface of the receiving vessel encircling the open top. The cover has two openings therethrough, the first opening being oriented directly above the particle receiving vessel and a second opening being oriented on an axis that is wholly outside a peripheral boundary of the particle receiving vessel. The cover further includes a structure defining a passageway extending from the particle receiving vessel to the aforesaid second opening. A reciprocal valve member is mounted in the passageway and a drive motor is provided therefor which is mounted on an exterior part of the passageway to facilitate easy access thereto.

Abstract: A filter apparatus 20 is connected to an outlet portion of a canister mounted on a fuel supply system for a vehicle. A housing 21 and a filter element 30 are provided. The housing 21 has a connection-opening portion 25 connected to the outlet portion and atmospheric release opening portion 26 communicating with the atmosphere. The filter element 30 is received in the housing 21 so that one end of a hollow portion 31a passing through the center of a filter body 31 is connected to the connection opening portion 25 from the inner side of the housing 21. The hollow portion 31a of the filter element 30 is utilized as a part of a passage for introducing fluid, which has been introduced from the connection opening portion 25 into the housing 21, into the atmospheric release opening portion 26.

Abstract: Contamination Control System includes a housing having a cartridge input-output port and an application input-output port The cartridge is coupleable to the cartridge input-output port and of a size to completely fit in an interior of the housing. A dual isolation interface is provided between cartridge and housing so that each entity may be separately isolated at the fluid interface. The isolation interface is resiliently engageable to make the fluid path open and close. The cartridge has a body physically defining a multi-region interior chamber, the chamber in fluid communication with an input and an output and defining a fluid flow path therebetween larger than any dimension of the body.

Abstract: This invention relates to a filter change indicator that is operable in various orientations of the device incorporating it. For example, the filter change indicator is operable when the device is positioned in either the upright or sideways position. The device incorporating the filter change indicator can be any air moving device which incorporates a cleanable or replaceable filter. The filter change indicator includes a transparent viewing window and a tubulation. The viewing window displays a visible signal when the filter needs changing. The visible signal can be a float retained in the tubulation. The tubulation is a hollow transparent tube which forms an incline plane within the housing. The tubulation includes a first end, a second end and a step. The first end is in fluid communication with an air flow path through the tubulation, and this air flow path is exposed to atmospheric pressure.

Abstract: A molecular sieve moisture absorption device for electrical apparatus containing a dielectric gas includes a box in which the molecular sieve is placed. The box is closed by a plate provided with a valve through which the inside of the box is evacuated. The plate is held in place on a shoulder of the box by the action of pressure difference between the inside and the outside of the box after the inside of the box has been evacuated. A gasket is placed between the plate and the shoulder to ensure that the inside volume of the box is leakproof. The device can be stored independently of the apparatus. When the device is mounted on the apparatus, evacuating the case of the apparatus causes the plate to separate from the box, thereby putting the molecular sieve into contact with the inside volume to be treated of the case.

Abstract: A displaceable purifier body improves the delivery of high purity gases from gas tanks or cylinders by providing a large flow area for filling the cylinder or tank with gas while preventing contamination of gases during the filling procedure and by automatically engaging the purifier for purification when withdrawing gas from the tank or cylinder. The purifier body or a separate seal body has an arrangement for reciprocal movement between a filling position wherein the gas entering the cylinder by-passes the purifier body and an engaged position wherein the purifier body moves towards the cylinder head assembly to prevent by-passing of exiting gases around the purifier. This arrangement offers little restriction to gas flow entering the cylinder and allows rapid filling of cylinders to make gas delivery more economical.

Abstract: Apparatus and methods for separating fluids of differing specific gravities are discussed. More specifically, apparatus and methods for separating a high volume flow mixture of air and water into an essentially dry air component and a pure water component are discussed. The separator is high volume and is structured around three physical elements which are defined as an input, a water chamber and an air separator chamber. A composite flow enters the input where most of the heavier water component separates, under the force of gravity, and flows into the water chamber. The remaining fluid, which is air and water in the form of vapor, mist, or droplets, is drawn into the air separator chamber using a vacuum pump, and subsequently flows through a condensate sub chamber which physically is an element of the air separator chamber. Any moisture in this flow is condensed within, and drained from, the condensate chamber such that dry air is discharged from the air separator chamber.

Abstract: In order to develop a suction device for cleaning purposes having a collecting container, which includes a closable suction inlet, a suction outlet and a filter disposed therebetween and is connected to a suction unit by a suction line emanating from the suction outlet, the suction line being closable by an outlet valve and an external air supply closable by a supply valve being disposed at the side of the filter remote from the suction inlet, in such a way that it facilitates filter dedusting, it is proposed that the suction device has a valve coupling unit, which links the closing of an inlet valve associated with the suction inlet and/or the opening of the supply valve to the closing of the outlet valve.

Abstract: A gas filtering device for a light gas tank includes a tank, a control valve, a filter, a position block and a position bolt. The control valve is combined with a center hole of the tank body and has a passageway communicating with a hollow interior of the tank, with the filter positioned under the lower end of the passageway. Thus fuel gas is filtered become pure with water and miscellaneous matters removed by the filter when it flows out, so fuel gas may burn completely, with heat energy elevated in burning.

Abstract: A valve seal system for passageway through a valve body emerging through a first generally flat and rigid surface, having a valve member including a resilient seal with generally flat exposed surface adapted to be brought into contact with the generally flat rigid surface, and having a generally circular, raised resilient ring portion extending from the generally flat exposed surface, the raised resilient ring portion adapted to be compressed against the generally flat rigid surface to seal the resilient seals against the generally flat rigid surface when said valve member is moved to a closed position by virtue of the raised resilient ring portion being compressed against the generally flat rigid surface.

Abstract: Smoky gas in conduit or closed space is disinfected by a box body, a blower which is arranged within said box body, an input openings and two output opening which can be switched alternately, a feedback pipe connected to the input opening, a vaporization device and a water collection tank connected to above two output opening, respectively, wherein the vaporization device is extended outside the box body with a circulation pipe and the water collection tank extended outside the box body with a gas outlet pipe; during its operation, feedback pipe and circulation pipe are connected to distal end of conduit or closed space, the disinfecting gas generated by vaporization device is sent to conduit or closed space with the help of blower; after finishing disinfecting work, the gas in feedback pipe is filtered by water collection tank and the purified gas is discharged to atmosphere.

Abstract: The apparatus has a container, which encloses a crude gas space, and at least one filter projecting into the crude gas space and having a filter axis and a shape-stable casing. This has a support member with two wire fabrics and a filtration member which forms its outer surface and has a wire fabric. The wire fabrics of the support member and of the filtration member are rotationally symmetrical with the filter axis, are adjacent to one another and are sintered with one another at the points of contact. When process gas is passed from the crude gas space through a filter, the process gas deposits dust present in it onto the outer surface of the casing. The or each filter is stable, durable and resistant to high or low temperatures and can be readily cleaned inside the container with a cleaning gas or a cleaning liquid.

Abstract: This invention relates to a filter change indicator that is operable in various orientations of the device incorporating it. For example, the filter change indicator is operable when the device is positioned in either the upright or sideways position. The device incorporating the filter change indicator can be any air moving device which incorporates a cleanable or replaceable filter. The filter change indicator includes a transparent viewing window and a tubulation. The viewing window displays a visible signal when the filter needs changing. The visible signal can be a float retained in the tubulation. The tubulation is a hollow transparent tube which forms an incline plane within the housing. The tubulation includes a first end, a second end and a step. The first end is in fluid communication with an air flow path through the tubulation, and this air flow path is exposed to atmospheric pressure.

Abstract: A dust filter unit for a canister is provided. An inlet port and an outlet port are formed in a housing and opening into the atmosphere. A communication port is formed in the housing and leading to the canister. A filter is arranged within the housing at a location between the inlet port and the output port. A first one-way valve is arranged within the housing at a location between the communication port and the outlet port, for allowing evaporative fuel to flow from the communication port to the outlet port. A second one-way valve is arranged within the housing at a location between the filter and the communication port, for allowing fresh air to flow from the filter to the communication port. Thus, the inlet port, outlet port, communication port, and first and second one-way valves are all provided in one piece within the housing.

Abstract: A clean dry air generating unit that includes a fan filter unit and a dry air generating apparatus arranged within a chamber of closed construction. The fan filter unit includes an open air introducing fan, a chemical filter, and a HEPA filter. The chamber of closed construction is supplied air through the fan filter unit which is then supplied to the dry air generating apparatus. Clean dry air is fed from the generating unit to an area outside of the chamber or can be reintroduced to the generating unit. The apparatus can continuously supply clean dry air at a lower cost.

Abstract: This invention consists of apparatus and methods for separating fluids of differing specific gravities, and more particularly apparatus and methods for separating a high volume flow of fluid comprising a mixture of air and water into an essentially dry air component and a pure water component. The separator is high volume and is structured around three physical elements which are defined as an input, a water chamber and an air separator chamber. A composite flow enters the input where most of and flows into the water chamber. The remaining fluid, which is air and water in the form of vapors mist, or droplets, is drawn into the air separator chamber using a vacuum pump, and subsequently flows through a condensate sub chamber which physically is an element of the air separator chamber. Any moisture in this flow is condensed within, and drained from, the condensate chamber such that dry air is discharged from the air separator chamber.

Abstract: A gas/liquid separator for separating an inlet stream of a mixture of a gas and a liquid into a substantially liquid stream and a substantially gaseous stream, the separator having a controllable, variable liquid level, includes an elongate cylindrical body portion having first and second closed ends which define a separation chamber, tangentially oriented inlet and outlet nozzles positioned near the ends of the vessel, and an overflow-discharge nozzle extending from inside of the separation chamber and longitudinally exiting from the separator through the inlet end, proximate to the inlet nozzle. The separator further includes a vent subassembly positioned proximate to the overflow-discharge nozzle. The subassembly includes a nozzle in flow communication with the separation chamber, and a flow-stop device operable between an open condition and a closed condition. The flow-stop device is positioned on the nozzle.

Abstract: Pressure control apparatus for a cyclone separator includes a variable air flow control valve in at least one line exiting from the separator. The air flow through that valve is adjusted in response to pressure changes in the separator. A flow control valve with adjustable bladders is preferred.

Abstract: A vacuum receiver for use in a pneumatic vacuum conveying system having a lid which gas-tightly closes a particle storage vessel. The lid has two apertures therein allowing a gas-particle stream to enter the interior of the vessel and a gas stream to exit the vessel. An upstanding hollow inlet housing is gas-tightly secured on an exterior surface of the lid communicating with one of the apertures. An inlet port is provided in one side of the inlet housing. The gas-particle stream enters the inlet port with sufficient velocity so that the particles strike the inlet housing opposite the inlet port to decelerate the particles. The particles fall through the one aperture and are stored in the vessel. The gas stream also enters the vessel through the one aperture and exits through the other aperture into an upstanding hollow outlet housing. The gas stream exits the outlet housing via an outlet port in the outlet housing.

Abstract: The smoke filtration unit described herein has an internal cylindrical duct for ducting exhaust smoke from an exhaust flue to a shutter pivotally mounted within the cylindrical duct. The shutter can move between at least two positions. The shutter, when located in a first position, directs exhaust smoke to a cylindrical filter. An exhaust fan draws the exhaust smoke through the filter. The residual gas is vented to the atmosphere. The cylindrical filter is mounted on a vibration mount that can vibrate the filter to dislodge particulate matter that collects on the surface of the filter. The dislodged particulate matter falls into an ash collection area. The smoke filtration unit is controlled by a microcontroller that monitors temperature and pressure conditions within the unit. If excessive pressure conditions are detected, the microcontroller energizes the vibration mount to dislodge particulate matter from the filter.

Abstract: A gas elimination device for cellular fluids has a cylindrical chamber that is divided radially into two parts by a cylindrical filter centrally located in the chamber. The fluid inlet is directed tangentially to the outer part of the chamber to create a vortex flow. The vortex flow is stopped by passage of the fluid through the filter, and gas bubbles that have formed rise to the top of the outer part of the chamber. A hydrophobic membrane covers the top of the chamber and allows the gas to exit the chamber to the atmosphere. A one way valve formed in a two part cap covering the chamber prevents flow of air into the chamber. A float valve stops flow when the chamber fills with air.

Abstract: A filtration installation including a time delay device which, at the time of a filter sleeve cleaning operation, establishes a cycle to exhaust filtered air towards the outside atmosphere instead of recycling it. The installation also includes a device for bypassing the filtered air that includes two shutters. One of the shutters controls a recycling of the filtered air and the other shutter controls the exhaustion of the filtered air to the outside atmosphere.

Abstract: An improved liquid/gas separator is disclosed for separating liquid and gas from a mixture that is mostly gas, within a zero gravity or variable gravity working environment. The separator includes a main housing that defines a pre-swirl chamber for receiving a liquid/gas mixture and an adjacent cylindrical separator chamber for containing liquid and gas separated from the mixture. A main shaft is rotationally secured along an interior longitudinal axis of the main housing and includes a hub portion defining exhaust slots in fluid communication with an exhaust duct within the hub for passing gas out of the separator chamber. A plurality of apertured coalescing disks are secured to the hub portion of the main shaft within the separator chamber for rotationally impacting liquid droplets and directing any droplets, bubbles or sheets of liquid formed on the disks away from the shaft toward and into a rotating liquid ring formed adjacent an interior circumference of the separator chamber.

Abstract: A clean air cabinet includes a blower chamber and a sample chamber separated by a filter. A blower within the blower chamber forces air through the filter into the sample chamber. A perforated wall between the sample chamber and the filter provides a pressurized zone between the wall and the filter. An exhaust plenum connects the pressurized zone with an exterior of the cabinet. A cap is provided to close off the plenum when the blower is not operating.

Abstract: A filter-purifier that removes particles as well as trace amounts of moisture, oxygen, and other chemical impurities from a gas stream. The filter-purifier includes a removable canister that contains a purifying medium and a pair of sealing poppet valves that automatically close when the canister is removed from an in-line block body. The block body includes gas line fittings with close gland-to-gland separations, since the canister is off to one side and not positioned directly in line between the glands.

Abstract: In an electronically controlled apparatus and method therefore for treating ot, dirty industrial exhaust gases utilizing dry environmental particulate separation, a plenum is constructed surrounding vertical hot gas exhaust duct, in which a concentric inlet connects the exhaust duct to the plenum, forming a bellow-discharge-gas-off-take. The plenum forms a settling chamber for coarse particles and housed within the settling chamber is a built in battery of high efficiency, high temperature cyclones, to separate the fine particles from the hot exhaust gases before the gases go through a gas-to-air-heat-exchanger, to transfer the sensible heat of the hot clean gases to the combustion air which in turn saves fuel. The apparatus has a servo-valve through which the cooled clean gases from the heat exchanger pass, and are taken in by a first suction fan.

Abstract: An apparatus for supplying high purity gas comprises a cylinder having a valve with two internal ports. One internal port is used to fill the cylinder while the other is fitted with a unit which removes particulates and impurities from the gas as it leaves the cylinder. The unit comprises an inlet, a first filter for removing coarse particulates, layers of adsorbent and absorbent for removing impurities, and a second filter for removing fine particulates. The purified gas leaves the cylinder via the valve and after passing through a regulator, a flow control device and various lengths of tubing passes through a conventional purifier immediately upstream of the point of use. The apparatus reduces the load on the purifier and hence decreases the frequency at which the purifier has to be recharged. Potentially the apparatus could obviate the need for the purifier altogether.

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 filter-purifier that removes sub-micron particles as well as trace amounts of moisture, oxygen, and other chemical impurities from a gas stream. The filter-purifier has a pair of end caps, a baffle stack, a purifying medium bed to contain a purifying medium, a pair of face-seal style fittings, a pre-filter cup, a purifying medium retaining screen, a final filter, a pair of spring stacks, a pair of collars to retain the spring stacks, and a cylindrical housing welded between the end caps.

Abstract: A system of localized low velocity laminar air flow in a recirculation path through filtering mechanisms for removing dust mites, waste and other particulate contaminants from the stream of air. That stream of air has a downwardly directed external portion in which a patient's head (particularly its mouth and nose) is adapted to be received.

Abstract: An interstage separator for transferring polymeric crumb from a first stage pneumatic conveyor with hot wet air, to a second stage pneumatic conveyor with cool dry air. The interstate separator is characterized by a tangential inlet for the crumb, and an enclosed separating chamber within which the crumb is separated from the first stage air stream. A transition member associated with the separator directs the crumb into a second stage air stream and, then, to a second stage pneumatic conveyor. The interstage separator transfers the rubber crumb from the first stage air stream to the second stage air stream without fouling of the associated equipment.

Abstract: A compact and efficient separator for removing both entrained bubbles and dissolved gases from fluid. Fluid containing gases is introduced tangentially into a vortex flow chamber which is disposed at the suction-side of a pump. The fluid, which is stripped of gaseous contaminants, flows out of the vortex flow chamber while gas-rich fluid collected near center of the chamber passes into a gas removal pipe which is communicated to a suction device.

Abstract: An air circulating system for a person operating an engine powered piece of agricultural equipment is provided and consists of a fan rotatably carried within a housing having an air inlet port and an air outlet port. The housing is mounted onto the piece of agricultural equipment adjacent the engine so that the engine can rotate the fan. An elongated duct is connected to the outlet port of the housing for directing air driven by the fan towards the person while operating the agricultural equipment to afford a degree of comfort during hot days.

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 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: An apparatus for draining condensate from vapor equipment comprises a cylindrical casing connected in fluid communication with the vapor equipment and defining a flow path for conveying vapor and condensate, an orifice disk disposed in the casing to traverse the flow path and having a plurality of orifices formed therein, and at least one partition disposed in the casing upstream or downstream of the orifice disk with a predetermined spacing therefrom, the partition covering a predetermined portion of the flow path. The structure is applicable to a variety of valves including sluice and ball valves.

Abstract: In a condensate separating and discharging device including a separator section formed by the inner wall surface of a casing and a cylindrical member, and a trap section provided below the cylindrical member in the casing, the trap section including a condensate discharging valve having a float, and a float cover for covering the float, an improvement is provided in that distance A between a lower end of the cylindrical member and the top of the float cover and an inner diameter B of the inner wall of the body at the trap section are set in such a manner that A/B is not less than 0.4, and in that the inner wall of the casing just below the cylindrical member is formed with a downwardly widening taper of about 2.degree..

Abstract: A pressure filter assembly having a bleed valve assembly for releasing trapped gas from with the filter chamber in a controlled manner. The bleed valve assembly includes a stem secured to the filter assembly having a bore therethrough for communication with the filter chamber and a cap for controlling the release of trapped gas within the filter chamber. The cap has a plunger with a contact surface which mates with a portion of the inside surface of the stem bore and an extension which fits with a narrow portion of the bore.

Abstract: A wet/dry vacuum cleaner which has a rotatable air directional valve and a piping arrangement whereby the air can be either directed into the tank for pumping out a recovered liquid solution or admitted directly to the tank through an internal flapper valve and expelled around the periphery of the vacuum when functioning as a dry vacuum cleaner.

Abstract: An airflow controller for use in an air filter for an internal combustion engine. The airflow controller comprises a frame and means for movably mounting the frame in the air filter for relatively lateral movement therein. The airflow controller frame comprises a plate that can restrict airflow into a carburetor to choke an engine and a spitback shield having an air intake volute and a venturi cone.

Abstract: An apparatus for producing an oxygen enriched gas having a compressor for supplying air under pressure, a unit for producing a gas enriched with oxygen from the air supplied from the compressor, a gas storage tank for reserving the oxygen enriched gas produced from the producing unit, a flow rate setting unit to set a flow rate of the oxygen enriched gas delivered from the gas storage tank, and a regulating unit for adjustably regulating an oxygen concentration of the oxygen enriched gas in response to a change in a requirement of an oxygen concentration of the oxygen enriched gas obtained at an outlet of the apparatus.

Abstract: Disclosed is an air filter unit for a pressure actuator such as a vacuum actuator for a speed control of an automobile comprising a solenoid valve unit including a plurality of solenoid valves and a diaphragm unit including a diaphragm defining a pressure chamber, air pressure within the pressure chamber being adjusted by selective activation of the solenoid valves which communicate the pressure chamber with pressure sources of different pressure levels. A filter element holder defining a pair of receptacles for receiving filter elements therein is attached to the solenoid valve unit so as to intercept air flow from an external air source into the vacuum chamber by way of the solenoid valves. The filter element for a vent valve which is frequently used is finer in structure than that for a safety valve which is less frequently used and is required to be capable of rapid introduction of air into the vacuum chamber.

Abstract: Apparatus for recovering drilling mud and the like comprises a vacuum pump (12) applying vacuum to a vessel (10). A hose (14) and suction head (22) allow an operator to remove the mud into the vessel (10). When the vessel (10) is full, vacuum is cut off by ball valve (16). A pneumatic logic circuit (20) detects loss of vacuum and disables vacuum pump (12) for a predetermined time, allowing the contents of vessel (10) to be discharged via flap valve (18) (or by pumping--FIG. 3). Discharging is thus automatic, without operator intervention.

Abstract: The apparatus separates exhaust fumes of an internal combustion engine into gas, liquid, and solids and comprises a container having an internal wall for substantially reducing the velocity of fumes fed into the container and allows the liquid and solids to collect in the bottom thereof with the fumes then passing through a demister filter to further separate same. A liquid level sensor connects to the container and senses when a maximum level is reached. The sensor may be of a float type and also can control a spring loaded valve in the fumes inlet passageway and/or a gauge connected by vertically spaced passageways through the side of the container, the latter gauge also could include an audible or visible alarm. A valved outlet is attached to the container for forcing the collected liquid in the container therethrough by the pressure of the incoming fumes when a plate covers the gas outlet above the filter.

Abstract: A control device for supplying fuel to a burner and a method of making the same are provided, the device comprising a housing having an inlet for being interconnected to a source of fuel and having an outlet for being interconnected to the burner, a control valve unit carried by the housing for connecting the inlet to the outlet when the control valve unit is in an open condition thereof, and a passage arrangement carried by the housing and having the passage thereof leading from the inlet to the control valve unit, the passage arrangement having structure that is adapted to cause the fuel to flow through a substantially U-shaped path between the inlet and the control valve unit.

Abstract: An improved cleaning apparatus 10 is described wherein a shroud 21 with a moveable collar 22 is provided on the outside surface 12b of a cyclone 12 in an air outlet 13d from a container 11 leading to the cyclone 12 to dislodge accumulated dirt in the air outlet when a fan 18 drawing air through the apparatus is stopped. The apparatus preferably has a disc 20 which prevents long strands, such as hair, in the dirt from clogging the air outlet 13d from the container 11. The apparatus is preferably in the form of a vacuum cleaner.

Abstract: A separator for sorting particulate material suspended in a conveying gas into coarse and fine fractions has a rotor (1) with two sets (9,10) of vanes. Dampers (13,14) in outlet ducts for the fine fraction regulate the relative flow through the two vane sets and hence control the cut between the fine fraction and the coarse fraction which is flung centrifugally outwards by the vanes and falls down inside a casing (3).

Abstract: An arrangement for removing soot particles and other solid particles from exhaust gas of power vehicles, comprises a soot deflector arranged to receive exhaust gas and having a first outlet for a cleaned exhaust gas stream and a second outlet for a soot-containing exhaust gas stream, and a soot collector connected with the second outlet and arranged for removing soot, the soot collector being formed as an exhaust gas-impermeable collecting container fixedly mountable in a power vehicle, the collecting container having a soot removing pipe arranged to extend through a vehicle wall outwardly and having a closeable and openable end, the collecting container also having a filter-covered exhaust gas outlet pipe, the soot collector having a removable closing cover arranged to close and to open the one end of the soot removing pipe, and a filter which covers the exhaust gas outlet pipe.

Abstract: This ash receiving device is designed to prevent ash dust from entering a room when ashes from a fireplace or wood stove are dumped into the device. Primarily, the device consists of a container with a removable ash receiving receptacle on its interior. It also includes a foot pedal operated vacuum producing mechanism in its base, which by an attached hose, will cause outside air to be drawn through openings through an internal chute in which the ashes are dumped to fall in the receptacle. This incoming air being drawn in by suction, pulls the ash dust produced when dumping, into a removable filter included in the chute.

Abstract: A device for the separation of particles from a stream of gas by centrifugal action, comprising a driven rotatable hollow conically diverging body 1,2 and a feeding apparatus for directing the contaminated gas stream toward the inside wall of said body in the region of its narrowest portion so that the particles will be deposited against said wall and will gradually move toward the widest portion of said conical body; the stream of gas being controlled such that within the body a toroidal eddy forms for the recirculation of the contaminated gas stream.