Abstract: A system for treating a quantity of fluid from an associated fluid source which includes a variable volume device having an interior space, fluid communication apparatus connecting the interior space of the variable volume device to the associated fluid source, a treatment assembly communicating with an outlet of the variable volume device and apparatus biasing the variable volume device to have a smaller volume whereby the fluid is urged out of the variable volume device into the treatment assembly. In some cases the treatment assembly is a filter assembly which may include a coalescing filter. The apparatus biasing the variable volume device to have a smaller volume may be a weight on a part of the variable volume device. The system may further include apparatus biasing the variable volume device to slow the rate of increase in volume as the variable volume device approaches maximum volume.

Abstract: An apparatus for separating froth from liquid includes a feed conduit to carry partially aerated feed liquid, and a separator to receive and separate the feed liquid into a first component of froth or gas and a second component of de-aerated liquid or sludge.

Abstract: An air cleaner device is disposed beside an engine chamber. A connection pipe is connected to the engine chamber and the air cleaner device. The air cleaner device is adjacent to an accumulator. The air cleaner device has a lower box, an upper cover covering the lower box, four clamp devices disposed on four upper corners of the lower box, and a filter device disposed in the lower box. A connection pipe is connected to the upper cover. An air inlet pipe is connected to the lower box. An air activation block is disposed on the filter device. A large number of air passages are formed on the air activation block.

Abstract: A process for treating animal waste consisting of diluting the waste with water, irradiating the waste with UV radiation to break DNA coding in microorganisms present within the waste and to form ozone which oxidizes the waste, polymerizing the solids in the waste, and separating the polymerized solids from the remaining liquid portion of the waste.

Abstract: A system for repairing damaged glass including a vacuum powered anchor for securing the damage repair system to a surface of a damaged piece of glass proximate to a flaw in the glass surface. Included is an evacuating enclosure coupled to the anchor, the couplement providing a means by which the enclosure is fixable relative to the anchor. A common vacuum source is selectively communicatable with the anchor and the enclosure so that vacuum pressure may be selectively applied in any combination to the anchor and the enclosure. A resin applicator is also included for depositing resin into the flaw. Also included is a repair device for a cracked piece of glass. The repair device includes at least one anchor for securing the device to a surface of the flawed piece of glass opposite the crack opening.

Abstract: An apparatus for aerobic biological treatment of waste water is described, in which a great number of carrier members having a large surface area to which microorganisms adhere are movably set in a cylindrical reactor within a given range of height, and the carrier is horizontally moved substantially continuously so that a part of the carrier is cleaned with cleaning air. The partial cleaning system eliminates the disadvantages associated with intermittent cleaning of the whole carrier.

Abstract: Apparatus for skimming liquid from the surface of a body of liquid which includes a lighter liquid floating on a heavier liquid. The apparatus includes an upwardly opening container having a specific gravity which causes the container to float in the body of liquid with an upper edge of the container in the vicinity of the interface between the lighter and heavier liquids. An elongated suction tube has a lower end extending down into the container. The upper end of the suction tube is connected to a source of suction so liquid is withdrawn from the container through the tube.

Abstract: A two-platen injection molding machine without tie bars has a platen fixed relative to the machine frame and a platen that moves relative to it, a traverse mechanism that operates the movable platen, a device for generating clamping force and a device to compensate for the deformation forces occurring during generation of the clamping force. The traverse mechanism and the device for generating clamping force are decoupled. Preferably, the device for generating clamping force has at least one connecting rod that passes through both the fixed and movable platens beneath the mold space. The connecting rod is detachably fastened to one of the platens and can be locked to the other platen by means of a clamping device that produces the clamping force. The device to compensate for the deformation forces includes at least one rigid spacer detachably fastened at one end to one platen, while the other end of the spacer is forced against the other platen.

Abstract: In an air filter assembly a non-metallic air filter media is clamped between a pair of opposed metal end flanges, one of which is mounted by a threaded mounting rod in alignment with an opening through a horizontal panel. A metal sleeve integral with one of the end flanges stiffens the assembly and prevents the filter media from collapsing. The air filter assembly is used with numerous similar air filter assemblies to filter inlet combustion air for large gas turbine engines.

Abstract: A safety apparatus for pressurized filter vessels includes a protective shroud, a mechanical and electrical interlock device that prevents the opening of the filter vessel cover unless the input and output port valves are closed and electrical power to the pressurizing pump is disconnected.

Abstract: An air purifier, an air filter and a method of manufacturing an air filter for an air purifier are provided. The air purifier includes a base assembly, a filter assembly and a grill. A fan is mounted to the base assembly, and draws air through the filter assembly. The base and filter assemblies include adjoining walls having openings which are substantially smaller in area than the areas of the adjoining walls and area through which air is drawn in through the filter assembly. A resilient gasket having a passage approximately the size of these openings is positioned between the adjoining walls. The filter assembly is drawn towards the base assembly when the fan is operated, thereby enhancing the seal formed by the gasket against the adjoining walls. Unfiltered air is accordingly unlikely to bypass the filter assembly. The air filter is manufactured in an efficient manner through the use of a back plate having oblique end portions.

Abstract: An air filter, especially for cleaning combustion air for internal combustion engines. The air filter includes a substantially cylindrical housing having a raw inlet and a pure air outlet. A pure air outlet is fitted substantially concentrically on the face of a cylindrical housing. The raw air inlet is fitted on the surface of the housing jacket, and an essentially menthol-free filter element is secured in the housing. The housing aperture is fitted with adaptive systems having an integrated dirt extractor.

Abstract: An end cap assembly for a filter canister includes outer and inner metal caps each having an opening therein for general axial alignment with each other when secured to the ends of the canister. An inner metal plate or layer made of a wire mesh material and a second inner plate or layer of an air permeable cloth material is provided such that the inner plates or layers are disposed between the outer and inner metal caps and secured together to form a unitary end cap assembly.

Abstract: The invention provides a process for treating a sulfide-containing alkaline aqueous effluent, which includes subjecting it to a wet air oxidation treatment which oxidizes sulfide ions to environmentally acceptable sulfur acid ions, the oxidation being carried out in two or more chambers connected in series, flow of effluent between the chambers being effected at least primarily by gravity such that the pressures in the respective chambers can be maintained at substantially the same value.

Abstract: The invention relates to a method for separating ferrous ions from an iron-containing tinning electrolyte on the basis of methanesulfonic acid or phenolsulfonic acid, comprising the following steps:(a) providing a concentrated tin and iron-containing electrolyte containing 0.75 mols/l or more methanesulfonic acid phenolsulfonic acid(b) agitating and cooling the concentrated electrolyte to temperatures at which an insoluble Fe-salt preciptates(c) separating the insoluble precipitate to recover an electrolyte with a reduced iron concentration.and a recovery plant for tinning electrolytes on the basis of methanesulfonic acid or phenolsulfonic acid wherein this method is employed.

Abstract: A dewatering process in which a product comprising water and other materials is simultaneously subjected to compressive mechanical forces and electro-osmosis using a belt (12) having a plurality of connected spiral yarns and, at least in part, electrically conductive material thereon.

Abstract: A die apparatus wherein a layered web of melt blown fibrous filter media is produced by a unitary die including several die sources with facing layers of the fibrous filter media being attenuated by opposed fluid streams at preselected included angles and with the fiber layers being free from bonding together and with the fibers in each layer being minimally bonded.

Abstract: An air filtering, fume collecting mechanism is disclosed in which the contaminated air is drawn by a fan through a filter element which spins transversely across the flow of air being drawn by the fan. The filter element may be a disc removeably mounted on the hub of the fan blade assembly or it may be shaped to function as the impeller itself.

Abstract: A fluid filter having a substantially pot-shaped housing 10 in which is disposed a filter insert 11 including a pleated filter element 18 and end plates 19 and 20. The housing has a mounting flange 12 and a cover 13. The cover is connected to the mounting flange by a threaded connection or a bayonet connection. The fluid filter is attached by the mounting flange 12 to a supporting structure by at least one catch or a hinge in the form of a holding flange 29 and a projection 30.

Abstract: Process for the purification of a hydrocarbon stream by removing contaminating compounds contained in the hydrocarbon stream by contact with a solid adsorbent material and withdrawing a purified hydrocarbon stream, the improvement of which comprises passing the hydrocarbon stream through a first zone of the adsorbent material having supported thereon a fluorinated sulphonic acid and subsequently through zone of the adsorbent material.