Abstract: A vacuum cleaning arrangement having a collecting tank in which a jack system is arranged about its periphery which is operative to lift and separate an upper portion of the tank from a lower portion of the tank and also to move the upper and lower portions into contact under pressure. A filter screen is positioned between the upper and lower portions. The filter screen comprises a screen formed of metal wires and a perforated metal plate. A U-shaped resilient seal or gasket is secured about the outer surface of the plate. The arrangement provides that when the upper portion is drawn into contact with the lower portion, the portions engage the gasket with sufficient pressure to form an air-tight seal therebetween.

Abstract: An inlet particle separator for a gas tubine engine, comprises, (a) an annular air inlet duct, (b) downstream of the inlet duct an annular obturating member having a continuous surface, the menber arranged to bifurcate the inlet duct into annular compressor and scavenge ducts, the compressor duct leading downstream to an engine compressor stage, the scavenge duct being located radially inwardly of the compresor duct and directed upstream thereof, and arranged to scavenge solid matter from the air flow through the inlet duct. The inlet duct is provided with an annular constriction at its downstream end extending radially inwards from a radially outer wall of the inlet duct.

Abstract: A sanitation system, particularly for use in vehicles such as marine vessels (boats), trains, planes, etc. Into a holding tank with a sloping bottom containing sewage from a toilet system, such as a vacuum toilet system, about eight ounces of deodorant chemical is automatically injected into the tank approximately every 48 hours. This effectively controls odors while minimizing chemical consumption. A gas vent from the tank passes through a vent filter having a first type of activated charcoal effective against H.sub.2 S, and a minor amount of activated charcoal effective against amino acid gaseous compounds, the vent filter removing odors. A tank cap in the top of the cap supports "high" and "full" level indicator switches and allows for the injection of the chemical and the gas vent. A tank cleaning device comprising a piece of surgical tubing with a nozzle at its free end and connected to a source of liquid under pressure can also be utilized.

Abstract: A vapor clarification system includes a suction box and a plurality of fans located on top of the suction box. The fans withdraws a moisture-laden stream from the suction box and centrifugally accelerates it, producing a clarified vapor stream and a secondary vapor stream that is heavily laden with particulate matter. The secondary vapor stream leaving each fan passes through a cyclone, where particulate matter falls out of the vapor stream. The partially clarified vapor stream leaving the cyclone is returned to the suction box and re-accelerated in the fans. By placing the fans on top of the suction box, there is a reduction in the temperature drop occurring in the vapor stream which exits the fans; this in turn reduces condensation and improves the efficiency of the system. Primary cyclones are preferably disposed within the suction box, and secondary cyclones may be placed outside of the suction box.

Abstract: A molecular jet separator includes a body which defines an evacuation chamber. A bore in the body traverses the chamber so that the bore has two segments on opposite sides of the chamber. Respective tubes are seated in these bore segments, with their opposed ends in direct or indirect engagement within the chamber, in a firm fit so that the bores of the tubes are substantially aligned. The bores of the tubes are open at the aforesaid opposed ends, and at least one of these opposed ends is shaped to define a predetermined gap between the opposed open ends of the tube bores.

Abstract: A process and an apparatus for the electrostatic purification of dust- and pollutant-containing exhaust gases in multiple-field precipitators are proposed. The exhaust gases are first subjected in a first stage to an electrostatic purification under dry conditions in gas passages defined by platelike collecting electrodes and are subsequently passed in a second stage through one or more fields defined by liquid-wetted collecting electrodes, which define gas passages. The liquid which is supplied in the second stage at the top ends of the collecting electrodes is laterally discharged from the precipitator and the substantially dry dust which is still collected in the second stage is fed to dust-receiving means.

Abstract: The present invention relates to an improvement to a process for the removal of acid gases from a feed stream containing acid gases in which the feed gas is cooled and countercurrently contacted with a liquid absorbent in an absorber tower and the spent absorbent is regenerated by distillation wherein dissolved acid gases are stripped from the spent absorbent thereby producing a regenerated liquid absorbent and recycled to the absorber tower.

Abstract: Disclosed is a large-scale controlled environment booth for performing maintenance operations such as painting an aircraft. The booth is a building within a building having an air circulation system, filter banks, heating and air conditioning equipment, a fume oxidizer,and circulating and exhaust air fans. The invention is capable of several modes of operation permitting thermal conditioning and complete, partial or no recirculation of air through the booth.

Abstract: An air cleaning device produces a vertical plane of moving air to block migration of airborne impurities from one area to another, and to create a low pressure area which remotely attracts impure ambient air to it. The device may have one or more restricted air inlets orthogonal to the vertical plane of moving air, with restrictions creating increased air velocity at the inlets resulting in a low pressure zone which attracts impure ambient air to the inlets. A single stage activated charcoal filter which removes chemicals and odors may be provided within the device, as well as an ionizer which electrostatically removes particulates.

Abstract: A liquid desiccant regeneration system for use with a dehumidifying apparatus, the system comprising a water reducer for removing water from diluted desiccant, and a sump for holding concentrated desiccant, first and second bodies movable in the sump, a first of the bodies being operable to energize the water reducer when the desiccant in the sump reaches a selected high water content level, and a second of the bodies being operable to stop operation of the water reducer when the desiccant in the sump reaches a selected low water content level, whereby to maintain the water content of the desiccant in the sump between selected high and low levels.

Abstract: An improved apparatus is provided for sampling a gaseous mixture and for measuring mixture components. The apparatus includes two sampling containers connected in series serving as a duplex sampling apparatus. The apparatus is adapted to independently determine the amounts of condensable and noncondensable gases in admixture from a single sample. More specifically, a first container includes a first port capable of selectively connecting to and disconnecting from a sample source and a second port capable of selectively connecting to and disconnecting from a second container. A second container also includes a first port capable of selectively connecting to and disconnecting from the second port of the first container and a second port capable of either selectively connecting to and disconnecting from a differential pressure source. By cooling a mixture sample in the first container, the condensable vapors form a liquid, leaving noncondensable gases either as free gases or dissolved in the liquid.

Abstract: A device disposed in an exhaust section of image forming equipment for removing ozone generated in the equipment. An ozone filter and an agent container containing an ozone decomposing agent therein are constructed into a single unit. The agent contained in the body of the container is prevented from blocking small openings which allow the volatile matter of the agent to pass therethrough. A seal member and flanges surrounding the open end of the container body are adhered to each other by a layer of adhesive and a two-sided adhesive tape, whereby the open end is closed before the device is used.

Abstract: An apparatus for filtering contaminated gases. An extraction device provides a slow passage for the gases. The extracton device is in fluid communication with an intake port of a fan aggregation. The fan aggregation provides a vacuum for drawing the gases through the extraction device. The fan aggregation is rigidly supported on top of a filtration container. The gases are expelled by the fan aggregate through an exhaust port and into an interior chamber of the filtration container. A filter blocks the passage of contaminant components of the gases and permits the passage of noncontaminant of the gases from the interior chamber to the atmosphere. A gas-permeable housing surrounds the filter to retain the filter and support the weight of the aggregate.

Abstract: The invention relates to an emission electrode (10) for use in an electrostatic precipitator, in combination with one or more collector electrodes, wherein the emission electrode includes a carrier bar (11) and a plurality of electrode elements (12). One end-part of respective electrode elements (12) is connected to the peripheral surface of the carrier bar (11) in the absence of a gap therebetween, and in a manner such that the electrode elements will project from the peripheral surface of the carrier bar in a number of mutually different directions. The free-end or tip of respective electrode elements has a pyramidal or conical configuration (13) and the shank-part (15) of the electrode elements is advantageously screw-threaded. The end-parts of the carrier bar (11) are provided with means (16) for attachment of the emission electrode to holder devices. The inventive emission electrode is highly efficient and can be manufactured and handled in a very rational and effective manner.

Abstract: The improved in-line air filter apparatus of the present invention includes an air filter housing disposed in-line on the engine air intake hose of an internal combustion engine, with a tubular air filter element longitudinally disposed therein and having a closed axial end of such tubular air filter element disposed upstream of an open axial downstream end, with the open tubular end having a size and shape substantially congruent with the size and shape of the engine air intake hose of the internal combustion engine for minimizing the turbulence of the filtered air supplied thereto, and with the closed upstream tubular end having an annular shaped air inlet portion surrounding such closed upstream tubular end for directing air longitudinally and inwardly through the body of the tubular air filter element.

Abstract: An electrostatic dust collector including a wall enclosing a vacuum chamber in which a target face to be subjected to dust removal is provided, a radiation emitting device for emitting radiation to dust on the target face so as to charge the dust positively or negatively, a dielectric member which is provided in the vacuum chamber and has a collecting face confronting the target face and a member for imparting negative or positive potential to the collecting face such that the dust charged oppositely is attracted to the collecting face.

Abstract: A muffler for a vehicle exhaust has anterior, intermediate and posterior sections. An array of parallel lateral plates are located in the upper part of the anterior section. Exhaust gas is introduced to the anterior section above the plates from an inlet duct opening into a header above the plates. A gas recirculation duct leads from the header back into the inlet duct to promote turbulent flow of gas through the plates. The posterior section of the muffler has a pair of filters through which the exhaust gas passes and an inflow duct leading into one of the filters into which air under pressure is introduced to mix with the exhaust gas.

Abstract: To facilitate removal and insertion of filter units from a filter frame structure without need to gain access to the dust side of the filter assembly there is provided a filter frame structure having a support plate formed with openings through which filter units may pass and support bars underneath the support plate to support each filter unit in the region of a respective opening. A removable seal plate is arranged therewith and clamp means is provided for lifting the filter units from the support bars to bring them into sealing engagement with the underside of the seal plate.

Abstract: A structure for filtering process gases prior to said process gases being allowed to enter a CVD chamber includes improved filter and control means to ensure high purity of the process gases. In one embodiment, a first filter means is located in a first section of a gas line being isolated by valves at both ends of the gas line section. A second filter means is located in a downstream gas line section for further filtering.

Abstract: A device for separating gas from liquid, in particular for separating air from water and for discharging the separated gas, is designed for placing in a liquid circulation system through which gas-containing liquid flows. The device comprises a housing with a feed aperture and a discharge aperture for the liquid to be degassed. The internal space of the housing is at least partially filled with open filling elements which have a large surface area relative to the volume taken up. The filling elements can be the shape of hollow cylindrical elements, known per se, comprising a cylindrical wall provided with apertures, and projections extending inwards from the wall. At the top side of the housing, in the wall thereof, a valve for the discharge of the separated gas is provided. The valve is operated by a float comprising a float element and a float rod.