Abstract: A system for removing hazardous contaminants such as radon gas and volatile synthetic organic chemicals from domestic water supplies includes a perforated, horizontally-oriented tray which is baffled to define a curved (e.g., serpentine, spiral) liquid flow path. Contaminated water is distributed upon a portion of the tray and flows as directed by the baffles to a downcomer and into a storage tank. Air is blown into the storage tank, which is located below the perforated tray, and up through the perforations. The forced air causes the water flowing across the tray to froth, and evaporates the contaminants out of the frothing water. The forced air, carrying the volatilized contaminants, is then vented outside the home.

Abstract: A decanting apparatus for a waste water treatment reactor which includes a float system which may be independent of the decanting apparatus end which allows the decanting apparatus to be removed without removing the float system. The decanting apparatus is a unique ball-funnel-shaped sleeve combination which may be powered internally or externally for removal of effluent that allows decanting below the surface at the most optimum level and may be intermittently operated on demand by floating switches or a programable timer. The decanting apparatus may be utilized in various applications including a gravity flow situation and two or more of these decanting apparatus's may be combined to provide more volume of effluent if required. This decanter is also ideal for environments where lower temperature extremes may form ice upon the upper layer of the fluid within the reactor.

Abstract: Filtering apparatus employs both pneumatic controls and a pneumatic drive to eliminate all electrical components. The filtering apparatus includes a perforate plate and a tank with a strip of filtering media supported on the plate. Contaminated liquid is supplied from above and clean liquid is removed from below the filtering media and plate. The filtering media is advanced across the plate by conveying apparatus. The pneumatic drive for the conveying apparatus is operated by pneumatic controls and a float which actuates the drive when the liquid in the tank rises to a predetermined level as the filtering media becomes plugged. The drive is shut off when the liquid drops to a lower predetermined level.

Abstract: An apparatus and method for controlling the amount and concentration of make-up water and chemicals introduce into the recirculating water of a cooling tower system. A float operated make-up valve controls the addition of make-up water to the tower. As make-up water is added to the tower a vacuum is produced at an injector valve which draws chemicals from a chemical holding tank into the make-up water, thereby allowing precise control of the chemical concentration in the make-up liquid. Further, a bleed valve is provided which is responsive to the vacuum produced at the injector valve and bleeds a portion of the recirculating water to waste.

Abstract: A drum centrifuge has a housing, a drum in the housing, an axially extending outer foraminous side wall in the interior of the drum forming an outer chamber, and a transversely extending foraminous end wall in the drum forming a bypass chamber radially inward of the outer chamber. A suspension is fed to the interior of the drum while same is rotating so that the suspension is thrown centrifugally against the outer wall and separates into a radially outer body of filter cake having an inner surface and a radially inner body of liquid sitting on the inner surface. A drainage chamber is formed at the end wall and a drain passage extends between the drainage chamber and the outer chamber while a bypass passage extends between the drain chamber and the bypass chamber.

Abstract: An automatic drum filter comprises a tank having a drum therein with a continuous filter media wrapped around substantially the entire periphery thereof. A supply roll of said media is supported externally of the tank for rotation about an axis substantially parallel to the axis of the drum. Filter media is advanced about the drum of the filter by means of an assembly which engages, advances, and then disengages the media.

Abstract: An oil spill recovery system for collecting spilled oil or other petrochemicals from the surface of water, for separating the collected oil and water, and for separately distributing these liquids to desired destinations. Oil is recovered from the surface of water by a collector head that creates a vortex of vacuumed air which lifts and skims the oil from the water. Once the oil is in the collector head, it is transferred to a separation chamber where the oil and water separate. Sensor devices inside the separation chamber monitor the oil/water phase line and the upper oil level. The sensor devices, continuously monitored by a control processor, signal a series of pumps and valves to discharge either water or oil or both when the liquids have reached certain levels within the separation chamber. The control processor has an operational sequence that provides for automatic control of the oil spill recovery system.

Abstract: A decanter and support assembly includes a pair of mooring arms pivotally attaching the decanter to a wall of a wastewater reactor basin and hingedly attached to a float buoyantly supporting the decanter. The decanter includes a valve for controlling the draw of liquid thereinto and a flexible discharge conduit that is fixedly attached to the decanter. A control line for powering the valve is mounted at the top of the non-detachable mooring arm. The float supports an actuation device which is operably connected to the control line. In a first embodiment of the decanter valve, the valve is oriented generally vertically at the inlet of the flexible conduit. In a second embodiment of the decanter valve, an actuator mechanism moves an exterior valve hood with a sealing flange which seals the discharge conduit against liquid. The valve hood sleeves a generally cylindrical intake manifold that supports the decanter.

Abstract: Plant to precipitate suspended matter out of water, such as surface run-off water, industrial waste water, biologically treated waste water and landfill leachates with in-pipe flocculation, a filter filled with granular filter material situated above the sedimentation tank of the plant the direction of flow through which is from top to bottom and a backwash tank and whose subsequent sedimentation and filtration stages comprise the following features: that the backwash tank for filtered water is situated above the filter; that a float seals off an aperture with an enlargened cross-section connecting the filter with the backwash tank in a position raised by buoyancy; that a bypass directs the treated filtered water past the float to the backwash tank if the said aperture is closed off; and that the sludge outflow pipe in the floor of the sedimentation tank and the sludge valve in the sludge outflow pipe are directed against gravity to such an extent that when the sludge valve in the sludge outflow pipe is opene

Abstract: An aquarium filter assembly which can be utilized as a diatomaceous earth filter which is self-priming. The filter includes a housing having a pump means from which depends a filtering element. The water pumped through the filtering element can be directed either back into the housing for recirculation of the water in the housing, or out of the housing and back into the aquarium tank for filtering of the aquarium tank water. A valve within the housing operates to permit water entry into the housing upon initial insertion and during filtration of the aquarium tank water. The valve closes when the water flow from the filtering element is directed back into the housing. Diatomaceous earth can be added into the housing and the water recirculated within the housing serves to self-prime the filter element. After charging the filter element, the water flow from the filtering element is directed into the aquarium tank and the valve opens to permit regular filtering of the aquarium tank water.

Abstract: In association with a hydrocarbon producing well, a unit is mounted to receive the discharge from the well. The unit includes a separation tank, a float shut-off valve, and a vertically oriented orifice meter.

Abstract: A method and apparatus for disposing of fecal matter from a toilet system in a fast moving vehicle during travel of the vehicle. The liquid components of the fecal matter are dehydrated to recover water. The water is disposed of by either discharging the water to the environment of the vehicle or by re-using the water in systems of the vehicle. The remainder of the fecal matter is introduced into a collection vessel of in the vehicle.

Abstract: This invention relates to a pool skimmer which is adapted to remove floating fractions, such as floating debris, from the surface of water. The pool surface skimmer of the invention comprises a housing within which a strainer separates a high level inlet from a low level outlet. The inlet is adapted to float below the surface of the water by means of two or more flotation chambers defining, between them, one or more intake ports each closable by means of a gate which is adapted to allow the ingress of water from the surface of the pool upon withdrawal of water from the outlet of the housing. The strainer is complemental, in outline shape, to the inlet cavity at the water surface and the gates are located closely adjacent the housing wall defining the inlet cavity of the apparatus. It is therefore possible, by removal of the strainer, to clear the entire water surface of the inlet cavity for removal or reclamation of the floating fraction separated in this manner.

Abstract: This invention relates to an anti-freeze separator assembly connected to a piece of equipment in outdoor freezing conditions in order to take a fluid, such as water, and treat same for subsequent disposal without freezing. The anti-freeze separator assembly includes 1) a main container housing; 2) a material retainer member mounted within the main container housing to receive and hold a treatment chemical therein; 3) an enclosure cap assembly releasably mounted on the main container housing; 4) a main fluid inlet assembly connected to the main container housing to transfer a fluid to be treated therein; and 5) a main discharge assembly connected to the main container housing to transfer a treat fluid therefrom. The main discharge assembly includes a discharge pipe member connected to a transfer pipe assembly with a diaphragm valve assembly therebetween.

Abstract: The invention concerns a method of and a plant for purifying water in an open, solid filter bed (17) in which, after the addition of chemicals, the water to be purified is passed through a filter bed, said filter bed being regenerated by counter-flow flushing, wherein the water to be purified in the filter bed is caused by force to flow through the bed at a constant rate by means of a partial vacuum created by a pump means (20) arranged downstream the bed (17), the flow being kept constant with the aid of a control valve (23) arranged on the pressure side of the pump (20).

Abstract: A method and a device for ultrafiltration during hemodialysis are described in which ultrafiltrate fluid, before removal from the dialysis circuit, is passed through a balancing device, which is also used as ultrafiltrate pump. For this purpose, a controller controls and actuates inlet, outlet, and dialyzer valves, in such a way that a desired amount of ultrafiltrate, corresponding to the filling volume of a balancing chamber or a multiple thereof, is introduced to the discharge through the balancing chamber. In order to carry out continuous ultrafiltration during hemodialysis, a predetermined amount of air is introduced to the dialysis fluid flow circuit through an air separator and is then pumped off during hemodialysis so that a corresponding amount of ultrafiltrate is obtained.

Abstract: A system for removing contaminants from water prior to supply to service by entraining a controlled quantity of air into the water to oxidize the contaminant particles and then filtering the contaminants in a combination aeration/filtration tank. The filtration tank includes an adapter which cooperates with a filter tank and the control valve for the filter tank to facilitate precipitation of water through the filter bed and venting of excess gases from the tank in addition to the filtering and backwash functions of the filter tank. The adapter is designed to cooperated with the control mechanism and tank of filter tanks used in currently available water conditioning systems.

Abstract: A liquid separator allows a mixture of oil and water to separate, then discharges the two fractions. A separating tank is automatically filled when a float indicates a low level. A second float is close to the bottom of the tank and has a density such that the float will just float in water. The presence of oil causes the second float to sink; and, a switch connected to the float operates either a water valve when the float rises, or an oil pump when the density is low. Lowering of the level by discharging fractions causes the first float to indicate a low level to fill the tank again.

Abstract: An apparatus for filtering a liquid, includes supplying a starting liquid from a container to a passage of a pipe-like filter set in a filter casing, passing the starting liquid through the passage of the filter thereby to produce the filtrate, sending back the unfiltered liquid to the container, and back washing the filter by means of a hydraulic pressure device having a piston movable in a cylinder in such a manner that the filtrate is moved by the piston of the hydraulic device.

Abstract: A principal catch basin defining a certain storage capacity, the catch basin situated below the level of the ground, having an upper level opening for receiving surface water drainage thereunto, and having side walls partially constructed of permeable geotextile fabric for allowing both sub-surface air to flow into the catch basin for providing additional water absorption by the ground, and for allowing water flow and sub-surface air to flow into the catch basin for providing additional water absorption by the ground, and for allowing water flow into the sub-surface water flow through the permeable basin to serve as a collection for sub-surface drainage. The system would include the ability to create a siphon within the system so that as water drains into the principle collection basin, the water may be automatically siphoned to a distant exit point or to an exit cylinder, so that there is a constant movement of water from the principle collection point to the distant exit point.

Abstract: An improved automatic air pressure relief and check valve assembly which may be used in combination with a swimming pool filter tank or a swimming pool separation tank. The valve assembly includes a normally open lower valve which communicates with the inside of the tank and is responsive to the tank's being full of pressurized water for closing the lower valve. The valve assembly further includes a normally closed upper valve communicating with the lower valve and the outside of the tank, the upper valve being responsive to air being expelled from the tank through the open lower valve, when water is filling the tank, for opening the upper valve to permit the air being expelled to exit through the upper valve. Cooperating with the upper and lower valve of the improved valve assembly is means for precluding both the upper and the lower valves from being simultaneously maintained in their closed conditions.

Abstract: Devices enabling to collect substances dispersed in a liquid or floating on the surface of a liquid. The device may be configured as a floating barrier, for example a boat or a buoy. It comprises at least a housing (1) communicating with the liquid through orifices (3), (5) fitted with shutters (4), (6), and with the atmosphere through orifices (2). A certain alternating variation of the level of the surface (S) of the liquid with a respect to the housing is determined, and maintains a circulation of streams between the liquid medium and the housing. Substances of various natures and densities, brought by the streams (a) entering the housing are collected by the latter, they may be conveyed up to the discharge ports. The invention may be applied for example to combat chronical and accidental sea pollutions, and to collect various samples of said marine medium.

Abstract: A binary fluid system, and components thereof for producing an impregnated metered fluid stream. Broadly, a container is included in the system and contains upper and lower, first and second fluid phases, i.e., liquids, gases or a combination of the same, which fluid phases meet at a common, unobstructed horizontal boundary or junction, extending the cross sectional width of the container. The fluid phases are of differing density, molecular weight, or specific gravity with the lighter phase being on top. Plural means are coupled to the container for replenishing both of the phases and also for drawing off, at a metered flow rate, the first or upper phase as impregnated by said second phase through diffusion processes across the common phase boundary, the withdrawal being from the container at the volumetric position of the first phase and proximate and above such phase boundary. The invention has special application to recirculating systems as may accommodate swimming pools, by way of example.

Abstract: Devices enabling to collect substances dispersed in a liquid or floating on the surface of a liquid. The device may be configured as a floating barrier, for example a boat or a buoy. It comprises at least a housing (1) communicating with the liquid through orifices (3), (5) fitted with shutters (4), (6), and with the atmosphere through orifices (2). A certain alternating variation of the level of the surface (S) of the liquid with a respect to the housing is determined, and maintains a circulation of streams between the liquid medium and the housing. Substances of various natures and densities, brought by the streams (a) entering the housing are collected by the latter, they may be conveyed up to the discharge ports. The invention may be applied for example to combat chronical and accidental sea pollutions, and to collect various samples of said marine medium.

Abstract: Apparatus for use with a swimming pool cleaner which includes a housing which defines a chamber, at least one inlet to the chamber and an outlet from the chamber, and a bouyant ball inside the chamber. The apparatus is installed or incorporated in a weir. When suction is cyclically applied to the outlet, and removed, the ball alternately blocks the outlet, and leaves the outlet unblocked. Correspondingly the pool cleaner is operated to clean a submerged surface of a swimming pool, or water is drawn directly from the pool and through a weir, for filtration. A more efficient cleaning of the pool takes place.

Abstract: For use in combination with a system for separating water from pressurized fuel in a filter-separator tank, there is provided a float valve and weight device that prevents fuel from leaving the tank if the interface between fuel and water is at an undesirably high elevation. The float of the float valve is associated with a weight, the relationships being such that the float floats at the interface. To test the float for waterlogging, and to test the entire system, the association between float and weight is discontinued. The float then floats up unless waterlogging has occured.

Abstract: A fish tank filter comprising an overflow tank for collecting surface waters from a fish tank, means for conveying the waters to a dry filter, a dry filter comprising a plurality of vertically stacked filter pans each having a filter material therein, a means for collecting the effluent from the dry filter and conveying it to a wet filter, a wet filter comprising a plurality of serially arranged filter material-containing filter compartments in a tank, and means for returning purified water to the fish tank.

Abstract: Water purification is performed in a simplified manner within a vessel having at least the lower porton thereof filled with a filtration media such as activated carbon. A spout is provided near the upper end. A filter media placed in the spout. The top of the vessel is closed with a cap which is vented to permit the escape of matter which is vaporized during the heating phase. The vessel preferably has a handle to aid in the dispensing of the purified water. The vessel is preferably formed of a material which is safe for use in microwave heating devices. A valve may be provided at the bottom of the vessel for dispensing purified water directly into a container such as a cooking vessel or beverage maker. In another embodiment the liquid is purified as it rises through the carbon in the container.

Abstract: A primary separation vessel is separated into a plurality of chambers having fluid communication therethrough; in each of the chambers there is further included a downwardly depending eductor system having a coaxial bore wherein fluid induces air into the eductor system where the educted air in the fluid being projected downward into the flow of fluid and the bubbles rising along the curved wall of the tank and carrying contaminants through a centrally located collection trough, which through gravity the contaminants collect in the trough and move to a circulation collected in the trough. The contaminants then move via gravity to a separation zone within the vessel, wherein the oil that is collected is allowed to spill over in an oil collection zone for recovery, and the level of the water is monitored to draw off any water collected within the zone.

Abstract: A recirculating sand filter system for the treatment of waste water comprises a septic tank (10) for receiving waste water, a recirculating pump tank (18) connected to the septic tank for receiving effluent from the septic tank and one or more sand filter modules (12, 14). The recirculating pump tank has a pump (48) connected to a pump outlet line (32) connected to the sand filter modules. A distribution pipe (28) connected to the pump outlet line is positioned to spray water over a surface of the sand filters. The pump is controlled by a timer (74) to periodically pump water to dose the sand filters. The sand filters have one or more collection pipes (34, 36) at the bottom of the filter for collecting filtrate and returning the filtrate to the recirculating pump tank via a return line (42) by gravity feed. A recirculating valve (52) in the recirculating pump tank is connected between the return line and a discharge line exiting the recirculating pump tank.

Abstract: A recirculating sand filter system for the treatment of waste water comprises a septic tank (10) for receiving waste water, a recirculating pump tank (18) connected to the septic tank for receiving effluent from the septic tank, and one or more sand filter modules (12, 14). The recirculating pump tank has a pump (48) connected to a pump outlet line (32) connected to the sand filter modules. A distribution pipe (28) connected to the pump outlet line is positioned to spray water over a surface of the sand filters. The pump is controlled by a timer (74) to periodically pump water to dose the sand filters. The sand filters have one or more collection pipes (34, 36) at the bottom of the filter for collecting filtrate and returning the filtrate to the recirculating pump tank via a return line (42) by gravity feed. A recirculating valve (52) in the recirculating pump tank is connected between the return line and a discharge line exiting the recirculating pump tank.

Abstract: A cleaner has in a tank a vacuum pump protected by a float valve above the maximum possible water level and a submersible pump at the bottom and both of these in the tank produce a vacuum for the suction of water against the vacuum, the submersible pump moving the filtered water collected in the lower region of the tank out of the tank past a check valve. The vacuum pump is constructionally combined with a tank cover, so that it can be mounted on differently constructed tanks for different cleaning functions. For wet suction purposes, the associated paper filter bag has a passage opening for the suction connecting pieces, so that the water to be filtered passes through the filter from the inside to the outside.

Abstract: An automatic air pressure relief and check valve assembly which may be used in combination with a swimming pool filter or separation tank. The valve assembly includes a normally open lower valve which is responsive to the tank's being full of water for closing the lower valve, and a normally closed upper valve which is responsive to air being expelled from the tank through the normally open lower valve for opening the upper valve during times when water is filling the tank. The upper valve may be selectively opened when air is required to enter the tank so that water may be drained from the tank. Preferred embodiments of the upper and lower valves include valve seats having conical surfaces and respective valve members which cause an included O-ring to roll upon and wedge against its conical seat for reliably closing each valve.

Abstract: A mixture control system for mixing a bactericidal chemical and water in a reservoir in batches. Flow of the water into the reservoir is initiated by a float actuated switch and the duration of the flow is controlled. While the flow is occurring, a dispenser dispenses chemical into the reservoir according to a preset dispensing cycle which is initiated when the water flow is initiated and also terminates therewith.

Abstract: A pair of flapper valves are mounted in parallel to control the flow of a fluid into a reservoir. The flapper valves are opened by a first rotatable cam which is rotated through one or more complete revolutions when a float control switch in the reservoir is opened thereby indicating a drop in the level of fluid in the reservoir. Each complete revolution of the first cam actuates an impulse switch for a short duration. The impulse switch energizes a low speed memory motor and increments the output shaft of the motor. Each increment corresponds to one complete revolution of the first cam and, therefore, one unit of a fixed quantity of fluid passing through the valves. The output shaft of the memory motor rotates a second adjustable cam that controls the actuation of a switch which in turn controls a dispenser for dispensing a chemical additive into the fluid added to the reservoir.

Abstract: Holding tanks in an extremely simple vacuum-sewage system can provide high volume storage against emergencies such as vacuum pump failure, while providing under normal circumstances frequent, sudden, small-volume discharges in which any one holding tank discharge may trigger one or more others as in a cascade sequence, precluding conditions that might produce septic accumulations. Each holding tank has a float valve with a float that can be held on the respective valve seat, against buoyancy by sewage, by conventional vacuum pumping of the main. When vacuum in the main is degraded by use of a special valve or switch for the purpose or by holding tank discharge, holding tanks are selectively discharged as a result.

Abstract: A centrifugal filter separator system operable to separate from oil under pressure solid contaminants, by depositing them on the internal wall of a rotating drum, powered by reaction jet nozzles, while also separating water from oil and extracting it from the rotating drum through a water extraction circuit. A water-oil mixture from the water extraction circuit is passed through a pressurized gravity type separator, from which the separated oil is returned, on a continuous basis, back to the centrifugal filter separator system, while the quantity of the water retained in the gravity type separator is controlled by a water ejecting automatic control, responsive to the position of the water-oil miniscus, or to the position of the layer of water-oil emulsion separating water and oil within the separator.

Abstract: A self-contained sewage waste disposal system including a housing structure and a toilet bowl adapted to receive human waste and fluid for diluting the waste, transporting the waste and rinsing the bowl. A removable filter cassette is in the housing in communication with the toilet bowl. The bowl is flushed and the contents are dumped into the filter cassette and the bowl is subsequently refilled. Filters in the cassette separate the coarse and fine particles of solid material from the fluid received from the bowl. The solid material is stored in the cassette in a compact manner for subsequent disposal upon removal of the cassette. Fine filtering and decoloring is accomplished by a carbon canister. A reservoir is provided for storage of fluid after removal of solid material therefrom in the cassette.

Abstract: A system to generate chlorine to disinfect a body of water. The system has a pump to move water through the system, a filter and an electrolytic cell able to generate chlorine by the electrolysis of sodium chloride and having an anode and a cathode mounted in a separate compartment. Chlorine is generated in the anode compartment and hydrogen in the cathode compartment. The compartments are in communication through an ion permeable membrane. There is a power source for the cell. The ion permeable membrane is formed as separate members, each covering an opening in a wall dividing the anode and cathode compartments. The anode and the cathode are located above the electrolyte. There is a mixing container divided into compartments, a first compartment to receive hydrogen and chlorine from the cell and provided with an outlet for water and the second compartment, in communication with the first and having an inlet for water, a float valve to control the inlet, the mixing container having a pressure relief outlet.

Abstract: A system for automatic evacuation of sewage from a holding tank or tanks in a vacuum operated sewage system provides in preferred embodiment a spherical holding tank with laterally located port for sewage intake, bottom port for sewage discharge to a vacuum main and detachably-covered top port for installation, inspection and maintenance. A float covers the bottom port until sufficient sewage collects to buoy it up, uncovering the bottom port and permitting vacuum discharge of the sewage in the holding tank. Ballast orients the float at all times. Rings of grooves in the lower exterior of the float insure sufficient leakage past the float to maintain portage in the vacuum discharge line. Simple ballast adjustment is provided.

Abstract: A device for separating two liquids one of which is heavier than the other. The device comprises a main chamber (120) in which there is a float (128). The float is such that it sinks in the lighter of the liquids and floats in the heavier. A control chamber (140) having a fixed wall part (142) and a movable wall part (144) is provided. The movable wall part is subjected to the pressure existing in the main chamber which urges the movable wall part in the direction which reduces the volume of the control chamber. A restricted inlet (146) places the control chamber and main chamber in communication. There is an outlet (158) from the control chamber which is normally closed by a valve (168). The valve is opened, mechanically or electrically, when the float rises upon heavier liquid accumulating in the main chamber. A valve seat (160) surrounds an outlet (156) from the main chamber.

Abstract: A system for physically separating a mixture of a first least dense liquid and a second medial density liquid, and a third most dense liquid has an upright container with a liquid inlet, a bottom outlet adjacent the bottom and having a flow control valve, a bottom float in the container but above the bottom outlet, a lower outlet above the bottom float and having a flow control valve, a lower float above the lower outlet and operatively connected to the lower control valve, a second float above the lower float, an upper outlet above the second float, and an upper float adjacent to or above the upper outlet, the bottom and lower and second floats are connected in parallel with the lower float being connected to the lower outlet valve, and the second and upper floats are connected in series to the upper outlet valve; and the bottom float connected to the bottom valve; the lower and second floats are fillable with and sink in the least dense liquid and rise in the medial density liquid, the bottom float is fille

Abstract: The invention provides for a skimmer (10) interconnected to the floating roof (30) of a floating roof tank (300) wherein a mixture of at least two immiscible liquids, including a lowest specific gravity liquid (50) and at least one higher specific gravity liquid (40), are stored. The skimmer (10) of the present invention is placed on the underside (20) of the floating roof (30). A funnel (140) is attached to the underside (20) of the roof (30) to extend downwardly into the liquid mixture wherein the funnel (140) has formed perforations (500) near the attachment of the funnel (140) to the underside (20) of the roof (30). A float (110) is operatively connected to the funnel (140) and selectively closes over the perforations (500) when the float (110) is in the higher specific gravity liquids (40) and opens over the perforations when the float (110) is disposed in the lowest specific gravity liquid (50 ).

Abstract: A device which may be connected to a liquid supply line for use in separating a foreign liquid and particulate matter contained in a supply liquid, wherein the foreign liquid has a specific gravity greater than that of the supply liquid. The device is particularly suitable for separating water and dirt particles from a liquid fuel.

Abstract: A fuel-water separator comprises a container having entry and exit ports and a progression of spaces through which the fuel moves. The spaces become progressively smaller and are arranged to direct the fuel through a series of downwardly and upwardly directed paths. The lower density fuel moves upwardly while the higher density water tends to move downwardly to drain through drainage openings provided in the lower portions of the spaces. Valves are provided for closing the drainage openings. The valves include float-valve balls which will release the water but hold the fuel. One of the spaces in the container includes a media having a downwardly directed surface upon which the water coalesces to move downwardly and through which the fuel moves to progress to the next space. Another one of the spaces includes a media providing a surface tension-discriminating surface through which the fuel will move and down which the separated water will move.

Abstract: An improved combination pool skimmer is disclosed which may be adapted to provide surface water skimming, or subsurface water sweeping or vacuuming of a swimming pool. The skimmer has a body including a throat for entry of water into the skimmer and a well located below and communicating with the throat. The skimmer has a single relocatable cover plate adapted to be located in the well of the skimmer to cover the skimmer pump outlet port. The well has a peripheral shoulder adjacent to the throat on which a removable strainer basket is supported. The strainer basket has an annular ring or flange which is disposed on this shoulder for this purpose. The cover plate may be supported on the basket annular ring to cover the basket and control entry of water into the well. A snap-in hinged weir and a snap-in hinged equalizer flap valve are provided in the skimmer which are not subject to corrosive decay by pool chemicals.

Abstract: Apparatus for physically separating a mixture of a first less dense liquid and a second more dense liquid has an upright container with a liquid inlet, a lower outlet adjacent the bottom and having a flow control valve, a lower float in the container but above the lower outlet, a second float above the lower float, an upper outlet above the second float, and an upper float above the upper outlet; the lower and second floats are connected in parallel with the lower float being connected to the lower outlet valve, and the second and upper floats are connected in series to the upper outlet valve; the lower and second floats are fillable and sink in the less dense liquid and rise in the more dense liquid, the upper float is air filled and rises in either liquid.

Abstract: The invention provides for a hydrocarbon skimmer (10) interconnected to the floating roof (30) of a floating roof storage tank (300) wherein a liquid mixture of sour water (40) and hydrocarbons (50) are stored. The hydrocarbon skimmer (10) of the present invention is placed in a formed cavity (100) located on the underside (20) of the floating roof (30) wherein the cavity (100) extends above the surface of the floating roof (30) and is capable of collecting the hydrocarbons (50) from the liquid mixture. A funnel (40) is attached to the underside (20) of the roof (30) in the cavity (100) to extend downwardly into the liquid mixture wherein the funnel (140) has formed perforations (500) near the attachment of the funnel (140) to the underside (20) of the roof (30). A float (110) is operatively connected to the funnel (140) and selectively closes over the perforations (500) when the float (110) is in sour water (40) and opens over the perforations when the float (110) is disposed in hydrocarbons (50).

Abstract: This fuel filter device serves to eliminate the need for priming a fuel pump and bleed-air from fuel injectors, in the event that the fuel storage tank runs dry, or fuel filters are replaced on a fuel consuming device, which employs a fuel injecting system. Primarily, the device includes a housing, having a floating filter on its interior, which rides on a perforated fuel valve rod. The device also includes a floating ball valve attached to the armature of a solenoid, which is secured to a fuel output fitting in the bottom wall of the housing, and in the event of water in the fuel, the solenoid is actuated, and its armature will pull the ball valve down for positive shut-off of fuel flow.

Abstract: The invention pertains to a method and apparatus for processing contaminated water containing high concentrates of volatile and soluble inorganic and organic compounds and ion reaction complexes thereof, and particularly pertains to the removal of high concentrations of hydrogen sulfide from well water, and the invention is well suited for use with domestic water systems. Batches of untreated water are introduced into a vented first holding chamber at a rate and volume related to the removal of batches of treated water from a second holding chamber. The chambers are interconnected by a dilution flow control orifice, or orifices, and air and ozone are mixed with the water within both chambers wherein aeration by air-stripping within the first chamber rapidly reduces the high hydrogen sulfide concentration and the lower hydrogen sulfide content of the water within the second chamber is primarily removed by the ozone.