Abstract: A nozzle for continuously generating a foam is used for the purpose of bathing, cleaning, fire extinguishing, sterilizing or the like. The nozzle includes as essential components a chemical agent liquid mixture preparing unit, a cylindrical holder to be held in by a user's hand, an injection nozzle attached to the foremost end of the holder for ejecting a chemical agent liquid mixture as a spray, a cylindrical sleeve secured to the holder with a diameter larger than that of the holder, air intake ports formed through the cylindrical sleeve, and a screen fixedly secured to the foremost end of the cylindrical sleeve for allowing a mixture of the ejected spray and the introduced air to collide therewith and thereby generate a foam. The distance between the injection nozzle and the screen can be adjusted, and moreover, the flow rate of air to be introduced into the cylindrical sleeve through the intake air ports can be adjusted.

Abstract: An aerator comprises a centrifugal pump including a rotary impeller with a plurality of blades defining an upwardly opening, axially oriented eye, inwardly of the inner ends of the blades, the blades also defining a plurality of flow passages therebetween extending generally radially outwardly from the eye. The pump further comprises an impeller housing generally surrounding the impeller and including an upper wall closely overlying a major portion of the blades, radially outermost, and defining an axially upwardly opening inlet over the impeller eye, the housing further defining at least one laterally opening outlet communicating with the radially outer extremities of the flow passages. The housing is adapted to resist rotation with respect to a container of liquid in which a pump may be disposed. The pump is also adapted to stay in a given depth range in such container. A housing extension conduit, fixed with respect to the impeller housing, extends upwardly with respect to the impeller housing.

Abstract: An apparatus for controlling the flow of air in a conventional venturi-type carburetor. A small tube and a large tube connected by a tapered transition tube is placed inside and concentric to the venturi of a carburetor with the large tube being closer to the throttle valve of the carburetor. The cross-sectional area of the large tube should be in the range of two to three times that of the small tube. A collar or draw plate is mounted around the small tube to control the air flow in the passageway formed by the outside of the wall of the small tube and the interior of the venturi. An aperture is provided in the peripheral surface of the small tube to permit the main fuel-metering nozzle of the carburetor to extend into the interior of the small tube. Small air bleed holes may be provided in the peripheral surface of the apparatus to permit the travel of gaseous materials between the exterior and the interior of the apparatus.

Abstract: A gas generator, which can be used to inflate an airbag, that has a perforated outer housing wall, a fuel chamber, an expansion chamber which adjoins the fuel chamber and is connected to the fuel chamber via openings, includes a surrounding filter resting against the outer housing wall. A filter tube holds and supports the filter. To provide a secure and uniform sealing of the edge of the filter along the entire circumference of the outer housing wall, a ring-shaped clamping device is provided between the filter tube and the edge of the filter. The clamping device presses the edge of the filter against the outer housing wall.

Abstract: An air freshener device is disclosed herein in combination with a forced air source and which has a carrier with a plurality of fragrance or scented emitting ingredients or the like arranged in separate spaced-apart cells or compartments in rows and/or columns. The carrier includes breakable walls for each cell or compartment adapted to release the stored ingredient into a stream of oncoming forced air. Attachment elements secure the carrier to supporting structure so that released ingredient will enter the stream of forced air for distribution throughout a room.

Abstract: The present invention provides apparatus and the method to treat process water of heat exchange systems with fluid flow through the system at an idling or inoperative system mode, which system may have a biocidal treatment arrangement coupled thereto.

Abstract: A method and apparatus for supporting headers within a tower from adjacent headers thereby reducing the amount of support members needed. In this configuration, the headers, which extend from opposing sides of the tower, are interspaced within the same generally horizontal plane in the tower. Support for the cantilevered end of each header is supplied by the self-supporting capabilities of adjacent headers near their support point with the tower wall. This significantly reduces the loaded span of support members to the distance between such adjacent headers as well as reduces the load upon such support member.

Abstract: A liquid-vapor separating drum has a screen dryer mounted in the upper portion between the primary separators and the vapor outlet. The screen dryer is constructed and mounted in such a way that only minimal access is required in the space above the screen dryer whereby the space can be minimized. A central pair of dryer rows is installed first when there is easy access. The two outside rows are then merely clipped in place which does not require any access. The bottoms of the rows are joined by drain panels which form a flow barrier and which serve to collect the liquid extracted by the screens. Hanging rods are used to support these drain panels and thereby indirectly support the bottoms of the rows. Vortex breakers in drain apertures of the drain panels improve the drainage rate.

Abstract: A liquid-vapour contact column includes an array of vertically spaced horizontal liquid-vapour contact trays having generally circumferential sides and arrangement of downcomers to conduct liquid from each tray in the array to the tray below. Each tray has gas passages to enable gas to pass into contact with the liquid. A weir is disposed on the floor of at least one downcomer. Each side of the weir is spaced from the corresponding side of the downcomer. This arrangement counteracts a tendency for liquid flowing along the floor of the downcomer to become detached from the sides of the downcomer, such detachment leading to maldistribution of liquid on the tray and hence to less efficient operation of the column.

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: An aeration apparatus for a wastewater treatment plant having an air line connected to an air source, a drop line connected in fluid communication with the air line, a check valve positioned in the drop line between an orifice at the bottom of the drop line and the air line, and a diffuser member extending around the orifice on the drop line. The check valve serves to prevent liquid from passing therethrough. The drop line includes a tube which extends downwardly from the air line, an upper adapter fastened to an end of the tube opposite the air line, and a lower adapter engaging the upper adapter in fluid communication with said tube. The upper adapter is a male threaded member and the lower adapter is a female threaded member. The check valve is affixed within the lower adapter adjacent to the female threads. The check valve includes a disk having a plurality of holes extending therethrough and a resilient flap valve extending over the holes and juxtaposed against the disk.

Abstract: A system and process for manufacturing deoxidized water by the step of dissolving inert gas such as carbon dioxide into available water in a fine bubbled condition for exchange with oxygen in the water.

Abstract: A synthetic composite flexible diaphragm of a fabric of warp-knitted polyester fibers and an elastomeric polymer coating applied only to one side of the fabric and disposed in interstices between the fibers to provide when cured a barrier at least substantially impervious to liquid fuel.

Abstract: The present invention provides porous fluoropolymer articles for diffusion of gases into aqueous liquids whose surface is coated with a hydrophilic fluorine-containing copolymer.

Abstract: Cowling for a rotary surface aerator used for the aeration of tanks intended for the aerobic treatment of water, consisting of a skirt surrounding the aerator, wherein the skirt is made of a flexible substance or material and is ballasted in its lower part.

Abstract: This invention provides an apparatus for treatment or refinement of organic or inorganic material. The apparatus comprises a gas washing unit, a first chamber formed at the bottom of the gas washing unit, a second chamber formed at the top of the gas washing unit, and a plurality of vertical pipes provided to communicate the first and the second chambers. A first group of nozzles is provided near the top of the first chamber, so as to define a first washing step for gas entering the first chamber. Then the gas enters the lower ends of the pipes towards their upper ends. The second group of nozzles are provided over the upper ends of the pipes so that the sprayed washing water falls down through the pipes and collects the impurities contained in the gas to form a second washing step.

Abstract: This device comprises a packet of corrugated plates (3) each disposed in a generally vertical plane, the corrugations being oblique and descending in opposite directions from one plate to the following plate. Each corrugation valley (5) having a lower end opening out laterally includes an projecting obstacle (7) in the vicinity of this lower end.Application in air distillation columns.

Abstract: The invention improves the performance of fractionation trays and comprises placing a bed-like layer of packing material closely adjacent the bottom surface of the tray. The packing is located in the so-called "disengagement" zone under the tray and does not extend down to the tray below. Means are provided to spread liquid from the tray above onto the packing material.

Abstract: A steam injector system comprises a plurality of steam injectors each being provided with with a check valve adapted for water supply, a check valve adapted for steam supply, a check valve adapted for overflow and a check valve adapted for discharge and the respective water check valves, steam check valves, overflow check valves and discharge check valves are connected. In another aspect, a steam injector system comprises a plurality of first to last stage steam injectors arranged in series with each other, the last stage steam injector being provided with a relief valve disposed at a last stage overflow drain port, and a pressure pulsation absorbing device is disposed at least between the last stage overflow drain valve and the relief valve.

Abstract: The invention is directed to a deaeration device for oil supply installations for oil-fired boilers and similar plant equipment. The deaeration device includes a deaeration valve and a float which is made to float even in severely foaming oil by partially supporting its weight on a spring element. This ensures that the float will close the deaeration valve and prevent oil leakage.