Abstract: A gas absorber for removing at least one gaseous component from a flowing gas stream by contacting the gas stream with a lean liquid stream to absorb at least a portion of the gaseous component to produce a rich liquid stream comprising the gaseous component and a flowing gas stream having a reduced concentration of the gaseous component which absorber comprises: (a) a double wall forming an annulus having a means for restricting fluid flow into the bottom of the gas absorber from the bottom of the annulus and a means for passing fluid out of an upper section of the annulus into the gas absorber; (b) an inlet for the lean liquid stream having a locus in the upper end of the gas absorber; (c) an inlet for the flowing gas stream; (d) an outlet for the rich liquid stream having a locus in the lower end of the gas absorber; (e) an outlet for the flowing gas stream having a reduced concentration of the gaseous component; and (f) at least one inlet communicating with the lower end of the annulus which inlet is used

Abstract: A self-contained liquid vapor purging system for use in such electromotive apparatus as integrated drive generators, or the like, which include a casing and a rotatable shaft extending into the casing. A charge pump circuit communicates with the casing for circulating liquid from the casing and charging liquid back to the casing. An aspirator is located in the charge pump circuit between a charge pump and a inlet to the casing for mixing fresh air with the liquid to deliver an air-liquid mixture to the casing. A centrifugal separator and check valve are incorporated in the rotatable shaft for separating liquid and vapor. The separator includes a vapor-liquid inlet from the casing, a liquid outlet to the casing, and a vapor outlet draining outside the casing. The centifrugal separator includes a valve in communication with the vapor outlet. One form of valve opens only at a predetermined rotary speed of the shaft, and another form of valve opens at a predetermined absolute pressure value.

Abstract: A gas removable pump for liquid comprising a housing having an inlet for introducing the liquid thereinto and an outlet for feeding the liquid therefrom, a drive shaft extending into the housing and a rotary pump disposed within the housing, the rotary pump including a rotor secured to the drive shaft for co-rotation therewith and a plurality of cells for feeding the liquid, each cell constituting a separator for gas-rich liquid upon rotation of the rotor. An ejector is provided for ejecting the gas-rich liquid separated in each cell through a passage formed in the drive shaft and the rotor. Also provided is a valve in the passage for opening and closing the same, the valve being arranged to operate in response to a pressure in the cell. The gas rich liquid gathers at inner portion of the cell due to a centrifugal force and is discharged by means of the ejector through the passage when the valve is in an open position.

Abstract: A negative pressure control system for protection from airborne asbestos particles, gases and the like from a work space includes an enclosure formed of portable rigid doorway panels and doors with transoms communicating with the work space and defining an air intake and decontamination chambers, an exhaust unit having a blower and HEPA filter is positioned in the work space and discharges to the atmosphere and maintains a suitable negative air pressure in the work space and a substantial flow of air through the work space and the decontamination chambers. The enclosure may comprise a room divider and/or a temporary room in communication with the work space. The doors are normally closed as by spring action and the transom closures open responsive to air flow towards the work space and closes with the loss of negative air pressure within the work space.

Abstract: Apparatus for the removal of asbestos or other matter from a gas stream in a conduit is disclosed. The apparatus includes at least two filter units installed in parallel to receive and filter the gas stream from the conduit, outlets for solid matter at the bottom of each filter unit, and first and second valves respectively on either side of each filter unit for isolating each filter unit for cleaning by compressed air jets when desired. Preferably, the apparatus includes a displacement chamber upstream of the filter units, with much of the asbestos being removed from the bottom thereof. The outlets at the bottom of each filter unit and the collecting and discharge area at the bottom of the displacement chamber are sealed from the surrounding environment, and the filtered solid matter is discharged into bags via at least one bagging unit sealed to the outlets and the discharge area.

Abstract: Apparatus for filtering dust and the like entrained in a flow of transport air which includes an enclosed housing having an upper filtering portion and a lower hopper for collecting dust. A plurality of filter elements are disposed in the upper housing portion, and a specially formed inlet plenum directs the transport air with entrained foreign particles in a predetermined direction toward the hopper so that heavier particles of dust are carried directly to the hopper by inertia rather than collecting on the filter elements. The filter elements are support solely by a cluster of support rods extending across the housing, and an access opening and closure door are provided for inserting and removing the filter elements. A latch assembly is provided which slidably engages the enclosure door at its closed position, after which it can be tightened, all without requiring any special tools.

Abstract: The filtration apparatus comprises a bundle of porous filtering elements (12) which are disposed over a certain length of a casing (2) and over a substantial part of its cross-section, and at least one assembly of ultrasonic transducers (15) disposed in at least one cross-sectional plane of the casing regularly spaced at its periphery. Each of the transducers is placed within an opening passing through the casing in a direction perpendicular to the axis of the casing. Ultrasonic waves are emitted within the casing in the direction of the bundle of filtering elements in a zone delimited by a cone, the axis of which extends in a direction perpendicular to the filtering elements and the vertex of which is located in the vicinity of the wall of the casing. The particles torn out by the ultrasonic waves from the filtering elements are recovered by an evacuation conduit (8). The invention is applicable, in particular, to the treatment of fluid used in the nuclear industry, and of other dangerous products.

Abstract: A filter canister assembly utilizes a sealant deflector to seal a particulate filter to the canister wall, even after the canister is sealed. The canister housing has a wall and an aperture with a particulate filter disposed therein. The particulate filter has an edge adjacent the wall, and is designed for removing particles of contaminants from a fluid, such as air, passed through the canister. A sealant deflector includes a plurality of vanes standing proud of a support substrate, and is situated between the aperture and the particulate filter and forms a permanent part of the canister assembly. The sealant deflector deflects a sealant in liquid state toward the wall to form a seal between the edge and the wall when the sealant is deposited on the sealant deflector while spinning. This deposits a sealant ring sealing the wall to the edge.

Abstract: A system and method for isolated removal and/or repair of a localized area in a structure, such as a ceiling or a wall. The system includes an adjustable support structure to which a debris containment bag is secured. The support structure is designed to adjustably hold the bag against a wall, ceiling or other structure so that a person can perform work on that structure from within the bag. In preferred embodiments the bag is fluid impermeable, carries one or more glove body which allows an operator to work within the bag on any isolated to-be-treated portion of a structure, a hose for controllably spraying liquids into the bag, and a vacuum hose for exhausting gases from the bag. The vacuum hose creates a negative pressure within the bag in a manner which reduces or eliminates the ability for material within the bag, such as asbestos, from becoming air entrained.

Abstract: A method for cleaning and removing particulate matter collected in a mobile vacuum loader that has a plurality of collection chambers, the method consisting of isolating two adjacent collection chambers and providing an outlet conduit on the main or heavy collection chamber and an inlet conduit on the adjacent collection chamber and positioning a separation chamber in communication with these two conduits, drawing negative pressure through the chambers and thus removing the particulate matter from the heavy collection chamber and collecting it in the separation chamber for disposal.

Abstract: An air purification system for subjecting air to a complex electrical field including sensors and a monitor/controller for monitoring effectiveness, operational conditions of the electrical field and the system, and ambient conditions of the air being purified. The level of the high voltage, RMS and high frequency is processed so that frequency, RMS and high D.C. can be measured at a low D.C. voltage.

Abstract: A fuel vapor recovery system for a vehicle includes a charcoal canister connected to the fuel tank for collecting fuel vapors from the tank as it is being refilled. After the tank is filled and the engine started, the charcoal canister is purged of accumulated vapors. As the canister is being purged, it receives atmospheric air to fill the purged volume. A filter is remotely connected by a hose to the air inlet of the canister. The filter assembly removes dirt, dust, and water from the incoming air.

Abstract: An engine air precleaner which is efficient at both low and high engine speeds as described. The precleaner has two air flow designs incorporated within it: one for a lower velocity of air flow and one for a high velocity of air flow. The dual air flow design is accomplished by an outer tubular sleeve member and an inner tubular sleeve member attached to an engine air intake stack. At low engine speeds, the air flow passes into the precleaner and through the inner tubular sleeve, causing the contaminant removal system to efficiently remove contaminants from the air. When the engine speed is increased, a valve opens allowing air to flow through tubular sleeve. Therefore, the contaminant removal system will operate substantially the same speed whether the engine is running at a lower or higher throttle.

Abstract: The novel ESP has a plurality of collector sections alternating in series with a plurality of prechargers (charging sections) with each collector section being preceded by a charging section. Each collector section contains a plurality of collection plates spaced by a distance d to define a plurality of gas flow lanes therebetween. Each gas flow lane contains 1-4 corona discharge wires aligned parallel to the gas flow. Each charging section contains a plurality of corona discharge electrodes alternating with anodes in an array transverse to the gas flow. Each collector section is much shorter than in the prior art, both in actual length and in relation to the length of the length of the charging section and the interplate spacing d.

Abstract: An apparatus including a housing secured to a filter web, wherein the housing includes a reciprocating rod directed orthogonally through the housing relative to the filter web, whereupon plugging of the filter web permits the rod to be directed through the housing to effect actuation of a switch therewithin. The rod mounts a magnet to track a plurality of contacts of a switch within the housing to effect actuation of an audible and visual alarm.

Abstract: An apparatus for adsorptive filtering of contaminants from a gaseous stream is provided. The apparatus includes a frame member. The frame includes a base member which is rotatable about an axis. A plurality of walls are attached to the base member and extend axially therefrom to a top member for providing a plurality of circumferential segment areas. The walls include a radially inner side for defining an axially extending inner chamber and a radially outer side for defining an outer periphery. A plurality of adsorption elements, each having an axial first side and an axial second side, are axially spaced in each of said circumferential segment areas. A duct or the like radially directs contaminated air into at least an entire one of the segment areas.

Abstract: A first insulation layer (3), a first conductive layer (1), a second insulation layer (4) and a second conductive layer (2) are laminated, and a larger spacial gap between either one (2) of the first conductive layer (1) and the second conductive layer (2) and the opposite layer (3,4) thereto (2) than that between the other conductive layer (1) and the opposite layer (3,4) thereto (1) is made, and high voltage is applied across both conductive layers (1,2), and when charged dusts pass therethrough, the charged dusts are attached on only one (2) of the conductive layer. These charged dusts are electrically neutralized, and thereby, it becomes possible to prevent weakening of the electric field and declination of the dust-collecting ratio through lapse of time.

Abstract: A dust filtering and collection system for filtering dust particles from an incoming dust laden air stream is disclosed. When used is a mobile vacuum loading/unloading vehicle, the system separates dust particles from the incoming dust laden air stream in a dust filtering and collection canister or chamber and then exhausts the dust cleansed air stream from the canister or chamber. Dust particles filtered from the dust cleansed air stream are collected as accumulated product particles along a bottom area of the canister or chamber. The accumulated product particles may then be transferred to a storage chamber from which the incoming dust laden air stream has emanated.

Abstract: This invention is a debubbler, degasser or gasser device used to remove gas bubbles and/or dissolved gasses from a liquid stream or to add gasses to a liquid stream. The device consists of a first block, a hydrophobic membrane, and a second block. The first block has a channel for carrying liquids which is grooved into its lower surface. The end of the channel is connected to an inlet and outlet. The second block has venting holes. When the hydrophobic membrane is pressed between the first and second block liquid can flow through the channel and bubbles or dissolved gasses in the liquid stream pass through the hydrophobic membrane. Alternatively, or in combination with degassing or debubbling, the device may be employed to introduce into the liquid stream gasses provided on the opposing side of the hydrophobic membrane.

Abstract: Low profile blower and filter apparatus for supplying clean air to selected environments is configured wherein a relatively low powered blower unit employing a backward curved impeller is utilized for a selected unit of volume. The number of blower units employing the backward curved impeller within the given module is determined as a function of the number of selected units of volume in the blower and filter module configured. Each blower unit employing a backward curved impeller produces a radial air flow which pressurizes a plenum formed within the module configuration in a substantially uniform manner enabling a substantially laminar flow through a filter disposed perpendicularly to the direction of the air flow from the backward curved impeller without use of baffles. Since the blower units selected are relatively small and no baffle structure need be employed, the height dimension of the resulting unit is markedly reduced to obtain a low profile module.