Abstract: A separator of the present invention includes a lid (12) constituting an inlet duct (4) for conveying diesel fuel to a deflector (6) which imparts a centrifugal velocity thereto inside a centrifuging bowl (8). The centrifuged liquid rises, passes through a filter (18), and leaves via an outlet duct (10). These two ducts are heated by an electrical resistance (16) incorporated in the solid metal of the lid by casting. The lid is provided with fins (24) for heating the diesel oil in the vicinity of the filter. The invention is particularly applicable to feeding fuel to diesel engines in goods vehicles.

Abstract: A vortex breaker has been invented for a liquid draw off tray with horizontal liquid draw off. Liquid is removed from the sump of the tray horizontally through a port. A first vertically oriented baffle has a top edge above the port, a bottom edge below the port and a side edge adjacent the port. A second vertically oriented baffle is perpendicular to the first baffle. The second baffle has a top edge above the port and a bottom edge spaced from the sump bottom a distance to about one-half port diameter, allowing for the flow of liquid thereunder. The vortex breaker is useful for a liquid spare horizontal liquid draw off tray.

Abstract: A filter assembly for filtering contaminants from liquid. A housing has a filtering chamber and an inlet port and an outlet port communicating with the chamber for flow of liquid therethrough. Filter media is located in the filtering chamber for filtering contaminants from liquid flowing through the chamber. A sump region is provided in the filtering chamber for collection of contaminants from the liquid, and a separator member is located in the filtering chamber and substantially separating the filter media and sump region. The separator member provides for communication of the contaminants into the sump region but tends to trap contaminants from the liquid received in the sump region.

Abstract: A water filtering device connected to a low water pressure supply and having a housing with an inlet and an outlet for the water being filtered. The housing has four chambers plus a water collecting chamber that are abutting to each other and separated by baffles that each include a screened window member. Different filtering media are contained, in a predetermined order, inside the chambers and through which the water is slowly forced.

Abstract: A closed loop, zero discharge, ozone water purification system is disclosed which allows the user to remove the contaminants from water and store the cleaned water for future use. The system includes a ozone/settling tank having baffles to divide the interior of the tank into several chambers. The baffles extend across the tank's interior and define water passages to allow the water to pass from one chamber to the next. The height of the water passages from the bottom of the tank progressively decreases in a downstream direction. Ozone is injected into the water in each of the chambers through an ozone distribution conduit passing longitudinally through each baffle.

Abstract: Five relatively spaced apart, internal partitions separate the subject septic tank into four consecutive settling chambers, a filtration chamber and an outlet chamber. Each of the four partitions separating the settling and filtration chambers is provided with a conduit having a connective section mounted in an upper portion of the partition at least two-thirds of the distance from the bottom to the top of the septic tank and with a leg section extending downwardly from the connective section. Each leg section has a lower opening communicating with a lower portion of one of the chambers at least two-thirds of the distance from the top to the bottom to the septic tank.

Abstract: A fuel treatment apparatus having a settling chamber with a fuel introducing conduit passing through the top of the chamber and extending to a lower portion of the chamber to define a fuel inlet in the lower portion of the chamber. A bouyant valve means is located within the first conduit means to permit fuel introduction during normal operation but to close off the conduit during periods of non-operation and thus closing off fluid communication between the fuel treatment apparatus and the fuel tank. A fuel outlet is provided to remove the fuel after the treatment. A recess in the bottom of the chamber has drain means in the bottom thereof for the removal of moisture from the bottom of the chamber. Novel means are provided to permit introduction of fuel when the normal fuel inlet is clogged, for example, by the freezing of collected moisture therein. This is provided by means of a secondary small fuel inlet in an upper portion of the first conduit means.

Abstract: A fuel filter assembly employs a base which mounts a disposable filter element cartridge and includes a sump for collecting water removed from the filtering unit. The cartridge includes a dual stage filter system wherein fuel flows axially to an upper filter element for removing particulate matter and coalescing water droplets and axially to a secondary filter stage which functions as a water barrier. The filtered fule flows axially downwardly and through an outlet passage from the base. The water collected in the sump is removed through a drain cock.

Abstract: A reservoir used in an automotive power steering system is provided with a first filter disposed within a reservoir body at a location between an inlet and an outlet thereof. The reservoir is further provided with a first guide member for forcing the oil flowed into through the inlet to flow toward the first filter by changing the flow direction of the oil and a second guide member for forcing the oil passed through the first filter to flow toward the outlet by changing the flow direction of the oil. The first guide member is provided with an opening, and a second filter whose mesh is finer than that of the first filter is attached to the opening so as to allow the oil to flow from the inlet to the inside space above the first filter through the second filter. On the other hand, the second guide member is formed with a second opening for allowing the oil passed through the first filter to flow toward the outlet through the second opening.

Abstract: A pressurized oil filter/carbon separation device includes a housing containing a plurality of separator chambers, a transfer chamber and a filter chamber. The housing includes a dirty oil inlet through which lubricating oil from an internal combustion chamber is delivered the separator chambers for serial flow therethrough. Within each chamber, carbon particles from the lubricating oil are separated from the oil flow owing to the forces of gravity within each chamber. The carbon particles are allowed to exit the lower portions of the separator chamber via discharge pipes at the bottom of the housing. From the last separator chamber, the oil is delivered to the transfer chamber for introduction into a filter chamber which contains a mesh-type filter screen to remove further minute particulates from the oil. The filtered oil exits the housing via a plurality of openings at the top of the housing and is delivered by a discharge pipe back to the internal combustion engine.

Abstract: A waste removal and/or segregation system for removing liquid and solid waste simultaneously from waste-holding tanks or vessels. The solid matter in the waste is filtered or segregated into one holding area and the liquid waste placed in a separate holding vessel so that each waste material may be independently disposed of in accordance with current EPA requirements. A separation or filtration element is interposed between a conventional liquid waste removal system including a container for the liquid waste and the nozzle applied to the waste material containing both solid and liquid matter. This vessel has an inlet connected to the nozzle and an outlet connected to the vacuum source through the liquid waste storage tank. The novel vessel of this invention has a filtration system that permits the liquid waste to exit for independent disposal while retaining solid matter for independent disposal.

Abstract: Versatile filtering apparatus is provided, particularly for processing liquid or coolant used with metal-working machines. The apparatus is adaptable for processing coolant in a wide variety of coolant systems to meet a variety of requirements of metal-working machines in a plant. The apparatus includes a dirty liquid tank in side-by-side relationship with a clean liquid tank, a coalescing unit, a filtering unit, an automatic supply or fill valve for supplying liquid to the apparatus from the coolant system, and an automatic discharge valve for supplying processed liquid from the apparatus back to the coolant system. The coalescing unit separates free oils from the liquid and the filtering unit separates solid particles from the liquid. The processed liquid is then discharged back to the coolant system along with fresh coolant.

Abstract: Apparatus and a method accomplished by the apparatus is disclosed for cleaning shards, such as clay pigeon fragments, of debris and contaminant materials for recycling. The apparatus includes a reservoir containing a washing fluid and a moving conveyor partially submerged in the fluid. A screen has an outlet positioned above the submerged portion of the conveyor so that the shards may pass along the screen to the conveyor while some debris and contaminant material falls through the screen and into the reservoir away from the conveyor. The shards are washed in the fluid and are conveyed by the conveyor out of the fluid and past a bank of spray nozzles which spray the shards in a direction against the motion of the conveyor. Preferably, the screen from the bottom of a hopper and the shards are introduced by the hopper onto the conveyor under the influence of a fluid spray. A pump system circulates fluid through the various sprayers. A weir is included to trap buoyant debris.

Abstract: A filter comprises a screen having a substantially conical inner wall disposed axially at its center. There is a collection space at the larger diameter end of this inner wall. A frustoconical outer wall surrounds the inner wall and has its smaller diameter end connected to the collection space. At least one offtake conduit is connected to the collection space.

Abstract: A filter without moving parts comprises a filter body adapted to be fitted in the flow direction into a conduit conveying a fluid to be filtered. A filter screen has a frustoconical outer filter wall with at least part of its larger diameter end inside the filter body. A collection space inside the filter body surrounds the filter screen. At least one offtake conduit is connected to this collection space. An inner filter wall of the filter screen extends at least partly into the outer filter wall from its smaller diameter end. A back wall intersects the inner filter wall and a further collection space is delimited by the inner filter wall and this back wall at the end of this inner filter wall farthest removed from the smaller diameter end of the outer filter wall. A further, separate offtake conduit is connected to the further collection space and passes substantially radially through the inner filter wall and the outer filter wall of the filter screen.

Abstract: A method of aseptic treatment of water which is produced continuously or discontinuously in an amount less than any momentary and maximum output of water. Produced water is supplied to a storage container. The recirculation is carried out from the bottom of the container up to the top thereof. A fresh supply of water and recirculated water is mixed in a mixing and flow deflector member at the top part and the water mixture is spread in a thin layer along the inside of the container above a temporary water level in the container.

Abstract: Water straining device for removing sand, grit and other foreign suspended particles from water characterized by a cylindrical housing having a bottom closed end and an open top end together with multiple annular holes through the cylindrical side wall. Cylindrical baffles are mounted inside the housing adjacent each hole. At least one strainer containing multiple slots is located inboard of the baffles and is connected at one end to a pump with a one way valve interposed between the strainer and pump. A backwash system is connected to the inside of the housing to remove particles clogging the strainer slots.

Abstract: A water-solids separator including a casing forming a reservoir and having an inlet and an outlet, a perforated filter screen assembly positioned in said casing between said inlet and said outlet, an overflow weir in front of the outlet to define the depth of water in the reservoir, a baffle plate on the inlet side of said filter screen assembly to direct incoming water toward the filter screen assembly and a conveyor assembly on each side of the filter screen assembly for cleaning the surfaces of the filter screen assembly, each conveyor assembly including a number of wiper blade flights located in positions to move in abutting engagement across the surfaces of the filter screen assembly, each flight including a resilient wiper blade or brush to clean the perforations in the filter screen assembly.

Abstract: A method and apparatus for treating wastewater from a cleaning tank or the like is provided. A settling tank provides for separating the fluid and sludge, the sludge being passed to a filtration system having a plurality of filter trays with the filtrate being recycled to the settling tank. The decontaminated water from the settling tank is recycled to the cleaning tank.

Abstract: A fuel processor device is described which is particularly adapted for replacing existing fuel filters of diesel powered machines and fuel consuming devices. The fuel processor designs described have inlet and outlet passages within their upper surface and include a lower plate assembly which provides a mounting location for various elements such as water sensors, drain valves, temperature sensors and heaters which are provided in accordance with the user's needs. The lower plate assembly may be mounted directly to a housing by a through bolt or matching threads or may be made integral with the fuel processor housing. The fuel processor device may include an integral throwaway filter element or the element may be integrated with the fuel processor housing. Various control means may be employed in connection with the fuel processor disclosed wherein the automatic drain water or other accumulated impurities from the lower portion of the fuel processor housing.

Abstract: An agitation type degreaser for cleaning oil from parts by contacting them with a cleaning liquid, and at the same time removing oil from the cleaning liquid, including a container filled with cleaning liquid, a partition dividing the container into a first turbulent-liquid chamber receiving the parts to be cleaned and a second calm-liquid chamber used for oil separation and removal, suction and discharge ducts communicating with the first chamber and a liquid pump operative to draw liquid from the suction ducts and discharge it through the discharge ducts into the first chamber at high velocity to maintain turbulence, and the second chamber including oil removal and recovery apparatus including one or more bleed holes operative for delivering a proportion of the discharged cleaning liquid from the ducts into the calm liquid of the second chamber, and including one or more openings below the surface of the liquid through which a flow of calm liquid will pass back into the first chamber.

Abstract: A method and device for use in connection with a dough divider machine which continuously uses mineral oil for lubrication. The method comprises capturing mineral oil, flour, and dough contaminants which becomes mixed as the dough divider operates and filtering the captured mixture so that substantially pure mineral oil is separated from the flour, dough and contaminates. The substantially pure mineral oil is then injected back into the dough divider machine for lubrication. By comparing lost mineral oil to the weight of bakery products produced during a predetermined period, the amount of mineral oil in the bakery products is determined. The filtration method and device utilize a gravity filtration diffuser coalesence and precipitation and a suction filtration. The device is portable for use with either one or more dough divider machines and for cleaning.

Abstract: A modular fuel conditioner having a base and a disposable filter/water separator cartridge releasably secured to the base and defining a filter chamber in fluid communication with fuel inlet and outlet passageways in the base. A three stage filter assembly within the cartridge includes filtering and coalescing media and separates an upper portion of the chamber from a lower portion which defines a water collection sump. A heater in the base warms fuel before it enters the cartridge. Sensing devices in the base are provided for operating signals to indicate the presence of a predetermined quantity of water in the sump and the occurrence of a plugged filter condition. A priming pump on the base is manually operated to restore the fuel conditioner to operational condition after cartridge replacement.

Abstract: A foreign matter removing apparatus for removing foreign matters from cooling water such as sea water taken as the cooling water for the condenser of, for example, a power generating plant. The apparatus has an inversed frusto-conical barrel, a filter of a substantially same form as the barrel and disposed in the latter, a cooling water inlet pipe connected to a side portion of the barrel, a cooling water outlet pipe connected to an upper portion of the barrel, a foreign matter discharge pipe connected to a lower side portion of the barrel, and a butterfly valve disposed in the cooling water inlet at which the cooling water inlet pipe is connected to the barrel. The foreign matter discharge pipe is periodically opened while varying the opening degree or angular position of the butterfly valve thereby to remove and discharge foreign matters from the filter surface.

Abstract: A particle precipitator in the form of a cylindrical tank accepts raw water through a tangentially and horizontally mounted pipe. The precipitator is divided into three separate chambers, a lower, middle, and upper chamber separated by two baffles. The raw water enters and circulates into the lower chamber and because the lower chamber is of much larger volume than the inlet pipe, the velocity of the raw water is substantially reduced. During the raw water's residence time in the lower chamber, many of the larger particles are permitted to precipitate out to the bottom of the precipitator tank. The water then flows through a center opening of the lower baffle to the middle chamber and around the outer edges of the upper baffle to the upper chamber. By the time the water reaches the upper chamber, most of the larger particles have had a chance to precipitate out and the water in this upper chamber is substantially cleaner than it was when it entered the precipitator tank.

Abstract: The present invention relates to a waste water outlet for a sanitary plant, comprising a siphon forming a water seal to which is connected a waste pipe for connection with sewers and in which an automatic air valve device and a siphon are combined in one single apparatus so that their functions are complementary. A cylindrical body having a permanent water seal and into which extends an inlet pipe or equivalent connected to an apparatus such as a sink, a basin or waste outlet, is combined with an automatic air valve with peripheral air entry. Outside the inlet pipe extending into the water seal is an internal partition which separates the water seal and the automatic valve device situated at the upper part of the cylindrical body, thereby protecting the valve device against a raising or splashing of the liquid situated in the water seal.

Abstract: A liquid settling and recycling machine particularly conceived for use to wash or clean greasy or oily parts in a garage or mechanical shop; this machine being characterized by an improved wandering flow path featuring a first settling stage adapted for rapid and early collection of metal particles including a collector device readily removable for emptying, magnets to rapidly collect metal particles, and a temperature responsive cover carrier and cover adapted to close a drain giving access to an underlying reservoir of flammable solvent to protect the latter against fire in it upon the start of a fire outside of the reservoir.

Abstract: The present invention comprises a ball catcher having a housing which may contain a stinger, baffles, or both such features therein.

Abstract: A separator for separating low and high density constituents of a liquid includes a tank. The tank has a liquid inlet, an opposing liquid outlet and an upper side drain. A filter is mounted in the tank adjacent the inlet for filtering its discharging liquids. An input dam is located downstream of the filter and extends upward a given height. The drain is positioned to draw from locations downstream of the dam. In one embodiment, the tank has a top panel extending across the tank, its upper edge near the drain. The panel is inclined upwardly to cause an upward liquid flow. An internal baffle may be mounted across the tank between the the outlet and the panel. This baffle is spaced from the bottom of the tank to provide an upwardly accelerating liquid flow.

Abstract: A tractor trailer chassis compactly mounts a waste oil cleaning apparatus of hydraulically connected, primary components. A diesel fuel burner fired heater of vertical cylindrical form mounts at one end of the chassis. A blower feeds a large volume of air under pressure to a cylindrical fire box where a fuel air mixture is ignited and fed tangentially into the base of the central chamber within the heater where the products of combustion follow a helical path within the central heat exchange chamber. Waste oil is fed counterflow along a second helical path through an annular chamber separated by a cylindrical metal heat conductive wall from the chamber bearing the products of combustion. Heated waste oil is fed from the heater to a vibrating table type solids separator or shaker mounted at the opposite end of the trailer chassis from the heater where solids are separated from the heated waste oil.

Abstract: An automatic washing machine of the vertical axis type is provided with an annular channel in the bottom of the tub to collect debris and sediment particles and with an annular baffle to prevent the collected particles from being deposited in the washed articles during the direct-into-spin portion of the wash cycle.

Abstract: A plurality of elongated hollow, circular, foraminous substantially vertical tubes contiguously stacked transversely to the direction flowing liquid such as waste water containing foreign matter, i.e., settable solids and free oil, in a coalescer-separator apparatus provide a filter body providing for significant surface area contact by the liquid on both inside and outside surfaces of the tubes to entrap the foreign matter but defining substantially vertical passages permitting the entrapped foreign matter to be gravity separated with the lighter matter coalescing and floating upwardly and the heavier matter settling downwardly so that substantially clarified effluent flows from the apparatus. The stacked tube filter body is contained within an insulated closed container of a sufficient capacity, and the arrays of holes in the tube walls are coordinated with respect to the intended volumetric capacity of the apparatus, so that turbulence in the liquid flowing through the filter body is minimized.

Abstract: A device for separating water from diesel fuel is adapted to be used with conventional fuel filter fittings and consists of a conical screen-like member which serves to separate the water from the fuel and in which the inlet providing the fuel which may have water therein is interior of the downwardly diverging conical member. A quiet zone is provided at the base of the cone to reduce turbulence and allow the water to be drained off by an automatically operated valve which operates in conjunction with the air compressor already on the truck.

Abstract: A split flow water treatment plant includes a settling basin comprising a pair of banks of generally horizontally extending settling tubes and an inlet baffle comprising a plurality of parallel vertical perforated sheets upstream of and adjacent to each of the banks. An inclined diverting plate extends from the downstream end of the lowermost tube in the first of the banks to the upper upstream end of the inlet baffle adjacent the second bank. The distribution of flow between the banks may be regulated by an adjustable weir or by water level control.

Abstract: The underflow of a cyclonic separator is discharged onto the drum of a magnetic separator and is confined to flow around the drum along a narrow channel so as to filter the underflow through swarf collected on the drum within the channel while preventing the underflow from washing across and disturbing the swarf collected outside of the channel.

Abstract: A liquid cleaner incorporating a driven impeller rotatably mounted in a perforated cage whereby liquid to be purified is introduced into the cage adjacent the center thereof, the impurities suspended in the liquid tending, by the centrifugal action of the impeller acting on the liquid in the cage, to move outwardly through apertures in the circular side wall of the cage, and downwardly into a lower sedimentation trap area outside the influence of the centrifugal action, the purified liquid then leaving the cage area through a suitable orifice at a predetermined distance from the axis of the cage.

Abstract: A device for receiving retrieved blood from the surgical field of a patient and treating the blood so that it is in condition for direct or indirect return to the patient. The device is comprised of a housing adapted to receive a relatively large volume of blood, which when received is removed of air bubbles and other foreign matter. The received blood flows smoothly both to and from a fibrous membrane interposed in the path of blood flow thereby avoiding bubbling and damage to the blood. Significantly, means within the housing are provided to inhibit clotting of the blood within the housing.

Abstract: An oil-water mixture is introduced into a horizontal trough which is in a container and has baffles directing flow upwardly toward an opening in the container to a trap on the top of the container. Oil separates from the water as it flows along the baffles and moves by gravity separation up into the trap. An interface sensor in the trap opens an oil outlet from the trap whenever a sufficient quantity of oil accumulates. The water flows down from the upper part of the container through a coalescing filter to a water outlet located in the lower part of the container, being a three-stage separator.

Abstract: An oily water separator method and means using a suction pump to withdraw oil and water from a ship's bilge or sump. To decrease emulsification of the mixture, the pump is positioned downstream of an initial filter and the separator. The pump draws the oil-water mixture by suction through a particulate filter and then into a separator. Fluid flow is slowed by the specially configured baffled separator to allow the majority of the inter-mixed oil to separate from the water by gravity before reaching the pump. The suction pump draws the water from the lower portion of the separator housing and pumps the now almost oil-free water through two additional filter stages. Means are included for reversing the pump direction to force accumulated oil floating on water from the separator housing to a holding tank.

Abstract: A water recycle unit for producing clear water output from grey water input comprises an enclosed container which holds a relatively large volume of water within the container while the heavy materials of the grey water, such as sand and dirt, settle to a lower zone and the lighter materials, such as oil and fibers, rise to an upper zone leaving a central zone of clear water between the lower and upper zones. An internal gate within the container removes clear water from the central zone through the outlet in response to the inflow of additional grey water into the unit through the upper inlet. The outlet is located in a side wall above the level of the central zone of clear water, and the gate includes an inlet opening which is located in the central zone. The gate also includes a passageway between the inlet opening and the outlet for conducting only clear water from the central zone to the outlet.

Abstract: To provide only dry steam to a steam appliance, under controlled conditions, a housing block is formed with steam inlet and outlet flanges or the like, a filter being removably located in the housing immediately behind the inlet and a control valve located in the housing immediately behind the outlet; the housing forms a space between the filter and the control valve to dry admitted steam, including a condensate collecting region at the bottom thereof which terminates in an outwardly accessible drain opening. The drying chamber formed by the housing is separated or subdivided into compartments by at least one impact or deflection plate against which the steam is guided in order to separate the drying chamber into a pre-drying and a post-drying chamber and efficiently remove moisture and water droplets from the steam introduced into the system.

Abstract: Oily water is introduced into the lower ends of outer vessels and flows upwardly in annular spaces between the outer vessels and inner separating vessels and into the inner vessels below inwardly spaced, shallowly cupped, annular separating discs. Larger particles of oil flow past the discs directly to the tops of caps on the outer vessels. The smaller particles of oil coalesce on and flow slowly along the bottoms of the discs to central openings in the discs, and up into the caps. The oil flows out of the caps when valves are opened by ultrasonic sensing probes actuated by accumulation of predetermined quantities of oil in the caps. The water flows out of outlets positioned near the bottoms of the inner vessels. In an alternate embodiment, a filter member of foam plastic is inclined to the flow toward the water outlet and coalesces any oil yet remaining in the water.

Abstract: The invention is concerned with an improvement in a hydraulic reservoir which comprises a tank having internally thereof filter means attached longitudinally between a first and a second generally parallel side thereof, said filter means including generally tubular filter element means extending generally longitudinally between said first and second sides of said tank and means for introducing a hydraulic fluid from an exterior of said tank to an interior of said element means from adjacent said first side of said tank. The improvement of the invention comprises a tube within said tank surrounding said element means and extending longitudinally generally the length thereof, said tube including exit means therethrough through which said hydraulic fluid passes after passage thereof from the interior to an exterior of said element means, a first end of said tube sealing adjacent said second side of said tank and a second end of said tube sealing adjacent said first side of said tank.

Abstract: A filter having a peripheral skirt extending above and below the filter element, provides a gaseous cushion which prevents clogging the filter. The peripheral edges of the filter may have means for preventing entry of solid in the narrow space between the skirt wall and the filter edge. The filter can be part of an entry or exit port in the base of a crystallizer in which crystals are formed, washed, melted and filtered in a single unit. A reactor containing the novel filter is also useful for carrying reactions using heterogeneous catalysts and reactions in which an initially homogeneous catalyst becomes nonhomogeneous during the reaction.

Abstract: Presented is a filter device for the fuel of diesel engines to remove water and entrained solids from the fuel, and which prevents the build-up of pockets of air within the filter device.

Abstract: This invention provides a separator for two relatively insoluble mixed liquids of different specific gravities as, for example oil and water. More particularly the invention relates to a bilge oil separating system (BOSS), or apparatus and includes a float controlled bilge pump for pumping the oil contaminated bilge water from a ship's bilge into a splatter chamber, that, to considerable measure, undoes the globularization of the oil caused by the bilge pump. This is effected by changing the rather rapid downward flow of the mixed liquids out of the delivery tube to a hollow jet type outwardly and upwardly directed flow that then changes to a hollow cylindrical downward flow against the inner cylindrical surface of the wall of a splatter chamber.

Abstract: A deep fat fryer trap receivable in the fryer well has imperforate trap portions extending along opposite margins of the bottom wall and an oil straining portion along a narrow medial portion of the bottom wall. The side walls have upper marginal edges closely fitting the well walls. Oil straining portions are also disposed in the side walls spaced upwardly from the bottom.

Abstract: An improved self-contained apparatus for the separation of low density fluids from higher density insoluable fluids or particles or both in which initial separation, coalescing and filtration steps are carried out substantially in series and in that order, is disclosed. Specific embodiments of such apparatus for use in oil-water separation are described and specific structures and devices for use in such apparatus are disclosed.