Abstract: An encapsulated filter cartridge assembly is disclosed which is adapted and configured for reception within an elongated cartridge housing of a filtration system. The filter cartridge assembly includes an elongated filtration element, a connector head positioned adjacent an upper end portion of the filtration element, an outer shell extending axially from the connector head and encapsulating the filtration element, and an expansion joint integrally formed in the outer shell to facilitate expansion of the outer shell within the elongated cartridge housing.

Abstract: The invention relates to a process and device for cooling and cleaning surface elements of a plate heat exchanger to recover heat from outgoing air by spraying water into a stream of outgoing air. Wetting nozzles are used to spray a fine stream of processed water into the outgoing airflow channels of the plate heat exchanger at equal time intervals. This entails no trickling off of sprayed water and the surface elements swept by outgoing air remain moist until the next spraying. Scouring nozzles are used at the end of a daily cooling period to spray a stream of tap water into the outgoing airflow channels. The wetting device comprises a back-and-forth nozzle rail with wetting and scouring nozzles, the axes of which are preferably located in one plane.

Abstract: A fluid distribution system for a packed absorption tower. The system includes one or more troughs mounted in the tower above the packing. Fluid enters each trough through an inlet in a side wall of the trough for flow to one or more orifices through which the fluid passes to fill the trough. Fluid is directed to the orifices by a conduit defined by the bottom and side walls of the trough and by a partition extending between the side walls above the inlet. Downtubes on each trough extend from inside the trough down through the bottom wall of the trough to a location below the trough. Each downtube has an inlet disposed inside the trough. Fluid passes through the orifices to fill the trough to a level sufficient for fluid to enter the inlets of the downtubes and to flow down the downtubes for distribution on the packing.

Abstract: A skimmer assembly is used in a swimming pool having a water surface, a return inlet and a wall. The skimmer assembly includes an elongate container defining a channel therein. The container has a first side opposing a second side. The first side defines a substantially horizontally oriented, elongate cutout therein. The cutout is in communication with the channel and is configured for communication with the water surface. The cutout has an upper edge and a lower edge. The container has a substantially open first longitudinal end and a substantially closed second longitudinal end with a nozzle disposed therethrough. The nozzle is aligned substantially parallel with the channel and has an opposing inlet and outlet. The outlet of the nozzle tapers toward and is in communication with the channel. A porous trap having an open mouth is connected to the open first end of the container. An elongate hose is disposed outside the container and is connected with the inlet of the nozzle.

Abstract: A cyclone for treating a gas flow (F) containing dust comprises a cyclone chamber (1) of circular cross section and having a vertical axis, and a central tube (7) of circular cross section, which is coaxially arranged in the upper portion of the cyclone chamber (1). An elongated insert element (10), which is vertically inserted in the central tube (7), is so designed and extends in such a manner downwards in the central tube (7) from the upper end thereof that a circumferential gap (17) exists between the insert element (10) and the central tube (7). This gap (17) has a preferably constant cross-sectional area which does not increase in the direction of the gas flow.

Abstract: A tube type hot gas filter having a ceramic tube sheet supporting a plurality of tubular filter elements in a filter chamber includes an annular heating chamber surrounding the edge of said tube sheet and through which hot gas from the downstream side of the tube sheet passes as it exits the filter.

Abstract: A water purification system for home or light commercial application including a preconditioning stage followed by an integrated water sterilization stage. Both stages utilize a single pressure chamber in which the active medium for the preconditioning stage is placed within this chamber as is the entire sterilization stage. More specifically, UV sterilization is contemplated with the UV stage having a stainless steel vessel which, however, is operated at zero differential pressure. A single head is fitted to the top of the pressure chamber and serves multiple functions of admitting the water to be purified and expelling the purified water and, further, to retain the UV vessel, the UV lamp and quartz shield. A segregation device is positioned at the inlet to the UV vessel to separate the respective stages and to assure that none of the preconditioning medium is admitted to the UV vessel.

Abstract: A method is provided for improving the dewatering and odor reduction characteristics of a liquid wastewater sludge, sediment, or soils to ultimately form a dewatered solid residual that includes nutrition enhancement of a resultant material that is suitable for distribution and marketing, and for incorporation in a fertilizer blend. The material meets Class A pathogen reduction by achieving disinfecting conditions. The method includes the addition of selective acids and bases to the liquid sludge which forms insoluble precipitates, and enmeshes the solids in the sludge to form a granular product. The method's applicability includes municipal, agricultural, food processing, industrial liquid and semi-liquid sludges, sediments, and soils.

Abstract: Disclosed are a first vent filter member which includes: an elastomer member made of a thermoplastic elastomer to which a water-repellent film can be fixed by fusion and having a cylindrical form whose one end part serves as an opening for insertion of a mounting part of a base; a water-repellent film thermally fusion-bonded to the other end part of the elastomer member; and a covering cap which protects the water-repellent film and has been fitted and fixed to the elastomer member in such a manner that a vent passageway is formed between the elastomer member and the covering cap, and a second vent filter member which includes: an elastomer member made of a thermoplastic elastomer to which a water-repellent film can be fixed by fusion and having a disk form which has on one side thereof a tapered insertional part to be inserted into a mounting part, is blocked on the other side with a mist barrier cover, and has a sealing/fixing part on the outer periphery thereof and a vent passageway extending from said one

Abstract: A multiple-plastic stream co-extruder as for injection-molding cavities, in which the extruder is internally provided therewithin and therealong with a restrictor or throttle pin, rod or element that forces combined plastic material streams, formed with an interior core stream encased in outer and inner stream layers, into corresponding concentric annular flow stream layers that are ultimately split transversely in opposite directions into a cavity gated to the extruder, and with the core stream at a region of zero gradient in the transverse flow velocity profile within the extruder and cavity.

Abstract: The method of reducing the acidity in effluent discharges comprises charging the effluent with carbon dioxide, intermittently fluidizing and expanding at least one pulsed limestone bed with the charged effluent, treating the charged effluent with the limestone in the bed, displacing the limestone treated effluent with untreated charged effluent, stripping excess carbon dioxide from the effluent after treatment in the limestone bed, and discharging the limestone treated effluent. The method includes treating the charged effluent in the limestone beds for preferably at least two minutes, more preferably about 4 to 8 minutes. The step of intermittently fluidizing and expanding at least one pulsed limestone bed with the charged effluent includes generally concurrently intermittently fluidizing and expanding at least one other pulsed limestone bed with charged effluent, so that each limestone bed is expanded and fluidized alternately.

Abstract: An air cleaner provided with a bellows-like air cleaning filter includes an air permeable and pliable strip-like mesh element (3), a plurality of rectangular plastic frames (4) arrayed side by side with a predetermined pitch on one or both surfaces and along the full length of the mesh element (3), the plastic frames (4) being injection-molded and provided at both end portions in the width-wise direction with angled protrusions (5) having an approximately triangular cross-section and hinge portions (7) formed by thinning or linearly grooving a joint portion of the frames (4) between neighboring plastic frames (4). The bellows-like air cleaning filter is employed by transforming it into a cylindrical shape and fitting end caps (9) thereto.

Abstract: The invention concerns a gas filter unit or cartridge type, including a filter material put together to form one or several filter bags, and a support frame of essentially U-shaped cross-sectional configuration, including a web portion and two lateral leg members in adjoining relationship, the filter material closest to the mouths of the filter bags being clamped in position between said lateral leg members. In accordance with the invention, the frame includes profile sections of a flexible material, preferably a plastics material, at least one of said lateral leg members being hingedly interconnected with the web portion, in addition to which locking means are provided to retain the corresponding lateral leg member in its clamping position in which it is pivoted into engagement with the other lateral leg member.

Abstract: An emission filter is provided including a tube attachment removably coupled to an exhaust pipe. A filter is mounted on the tube for filtering exhaust emitted from the exhaust pipe.

Abstract: A device to lay flat a film tube drawn from an inflated film bubble generated in a film blowing system includes lay-flat platens which delimit the film bubble and which are placed against the bubble in the form of a wedge. The platens are positioned in front of the squeeze rollers of a film take-up and winding device and have slip elements arranged transversely relative to the take-up device. A driven reversing frame can be provided to hold the lay-flat platens, support the squeeze rollers, and support guide rollers and turning bars about its rotating axis in a pivoting fashion. In order to decrease the friction between the film tube which is to be laid flat and the lay-flat platens, particularly for a reversing take-up, the slip elements have hollow sections including air blast nozzles or air blast slots facing the film tube to be laid flat. The hollow sections can be connected by lines to an air blast source.

Abstract: In a vehicle with an internal combustion engine and a fuel vapor recovery system including a carbon canister connected to the fuel tank for collecting fuel vapors from the fuel tank as the tank is being refilled, an air filtering apparatus is provided to supply a flow of clean and dry purge air to the canister for the purging of vapors therefrom. The air filtering apparatus includes gradually spaced baffle means and filter element means and is remotely connected in the evaporative emission control system by hoses connected to the air inlet and air outlet of the canister.

Abstract: Self-adhesive fibrous air filters that are universally compatible with devices that require filtered air and devices that provide filtered air. The self-adhesive air filters are fabricated from a flexible fibrous air filter blank composed of, for example, polyester batting, that is coated with an air permeable non-drying adhesive that has been vacuumed into the interstices of the fibers. A template serves as a protective cover for the non-drying adhesive and enables a user to shape and/or size the blank to configurations that are compatible with the air intake regions of the devices on which the self-adhesive air filters are to be installed.

Abstract: A passive pool skimmer has a T-shaped buoyant stabilizer end and a flexible strap which provides a readily displaceable structure that removes debris from the surface of a pool. The pool skimmer includes a rectangular frame having a net attached thereto in the configuration of a rectangular pouch. At one end of the frame, two floats are attached to the ends of a T-shaped structure. The floats rest against the side of the pool and, in combination with a float at the opposite end of the frame, provides sufficient buoyancy to substantially center the opening of the frame at the water level. A flexible strap with a quick disconnect is attached to the skimmer and allows relative motion of the pool skimmer.

Abstract: A particulate trap for use in a diesel engine which is inexpensive, and which is high in particulate trapping efficiency, regeneration properties and durability, and low in pressure loss due to particulates trapped. An even number of flat filters made from a non-woven fabric of heat-resistant metallic fiber are laminated alternately with the same number of corrugated sheets made of a heat-resistant metal. The laminate thus formed are rolled into a columnar shape. Each space between the adjacent flat filters in which every other corrugated sheet is inserted is closed at one end of the filter element by a closure member. The other spaces between the adjacent flat filters are closed at the other end of the filter element.

Abstract: An air cleaner for efficiently providing clean air for a structure is comprised of a housing having an intake port and an exhaust port. At least one air chamber having a liquid reservoir at its base is disposed within the housing. A fan draws air through the intake port and the air passes in turn through each liquid reservoir and then its air chamber and discharges the air through the exhaust port. A switch controls the fan and is turned off whenever the liquid level within the device is improper with the device having a flush valve for discharging exhaust liquid and a liquid fill valve for introduction of liquid.